Apparatus and method for reacting a liquid with another fluid

Abstract

The invention relates to a device for continuously reacting a liquid with at least one other fluid, comprising a jet loop reactor (1) in which an internal circulation flow can be formed, and an external liquid circuit (2) through which liquid withdrawn at one point of the jet loop reactor (1) can be fed to the jet loop reactor (1) at another point, wherein at least two guide tubes (3) are arranged next to one another inside the jet loop reactor (1) and divide the interior into an internal flow space within the guide tubes (3) and an external flow space outside the guide tubes (3), wherein the external flow space is a continuous space extending between the guide tubes (3) in a radial direction and together with the internal flow space forms a space through which the internal circulation flow flows.

Description

[0001] This invention relates to an apparatus for continuously reacting a liquid with another fluid, the apparatus comprising a jet circulation reactor and an external liquid loop, wherein an internal circulating flow can be formed in the jet circulation reactor, and liquid drawn from one point in the jet circulation reactor can be fed back into the jet circulation reactor at another point via the external liquid loop. The invention further relates to a method for reacting a liquid with another fluid in the apparatus of the invention.

[0002] A jet circulation reactor is generally considered to be a cylindrical container with a vertical longitudinal axis, inside which there is a tube with its open end located a certain distance from the bottom and top of the container. The fluid to be converted in the reactor is typically guided into the tube from above or below; this tube is also called a flow tube or guide tube. The fluid leaving the tube initially flows in the direction of the bottom or top of the container, then turns laterally and flows in the opposite direction to the other end of the tube. The resulting circulating flow is called the "circulation" of the jet circulation reactor or the internal flow. Common jet circulation reactors are known from the prior art.

[0003] Jet circulating reactors are used on an industrial scale in a variety of processes where a first fluid (typically a liquid) must be thoroughly mixed with a second fluid (e.g., a gas) to achieve a satisfactory reaction between the fluid reactants. Examples of industrially important reaction classes suitable for jet circulating reactors include hydroformylation or carbonyl synthesis for the production of aldehydes from olefins and syngas (i.e., a mixture of carbon monoxide and hydrogen).

[0004] Document WO 00 / 09467 A1 discloses a method and reactor for producing aldehydes, alcohols, or amines by reacting liquid-phase olefins with carbon monoxide and hydrogen in a jet-circuit reactor, wherein the liquid olefins are fed at the top of the reactor and flow downwards through a guide tube within the reactor. Gaseous syngas may be added to the reactor at different points. At the bottom of the reactor, a portion of the reaction mixture is extracted as product, while another portion is returned to the top of the reactor in an external circulation stream.

[0005] Document WO 2017 / 108878 A1 also discloses a jet-circulating reactor for the production of aldehydes via continuous hydroformylation. In this type of reactor, multiple jacketed tubes (field tubes) exist within a cylindrical vessel. The reaction mixture flows through the interior of these jacketed tubes, and an annular jacket space is provided for the flow of the heat exchange medium. A guide tube, open at both ends, closes the field tubes and feeds liquid olefins from below. The internal circulating flow extends upward through the guide tubes and field tubes, where it deflects and flows downward again in the annular space between the guide tubes and the inner wall of the vessel.

[0006] A known problem with jet circulating reactors is that their capacity is limited by design. The design of elongated, slender reactors, including tubes, can only be scaled to a limited extent to increase production capacity. There are known methods for addressing this problem, where multiple guide tubes are present in the jet circulating reactor. For example, document WO 2010 / 023018 A1 describes an apparatus and method for the continuous conversion of a liquid and a second fluid, wherein the apparatus has at least two jet circulating reactors connected in parallel and a shared external liquid loop. As an alternative to the parallel connection of separate reactors, several guide tubes can also be arranged in separate, isolated parallel chambers of a shared vessel. A similar construction of a circulating reactor is described in document CN 104307442 A1. However, a disadvantage of these methods is the high equipment expenditure for parallelization, resulting in high capital and operating costs.

[0007] The object of this invention is to provide an apparatus for the continuous reaction of a liquid with at least one other fluid in a jet-circulating reactor, wherein production capacity is increased without resulting in a significant increase in capital and operating costs. Another object is to ensure good mixing and distribution of reactants while increasing the apparatus's capacity, so that the chemical reaction can proceed satisfactorily. Yet another object is to ensure sufficient contact between the liquid and gas and prevent gas-phase separation when the other fluid is a gas.

[0008] According to the invention, this objective is achieved by the device according to claim 1 and the method according to claim 13. Advantageous configurations of the device and the method are specified in claims 2 to 12 and 14.

[0009] In the following text, the words “have,” “include,” or “contain,” or any grammatical variations thereof, are used in a non-exclusive manner. Accordingly, these terms may refer to a situation where no other features exist besides those introduced by these terms, or to a situation where one or more other features exist. For example, the statements “A has B,” “A includes B,” or “A contains B” may refer to two situations: that no other elements exist in A besides B (i.e., A is exclusively composed of B); and that one or more other elements exist in A besides B, such as element C, elements C and D, or other elements.

[0010] It should also be noted that the expressions “at least one” and “one or more”, and grammatical variations thereof, when used in conjunction with one or more elements or features and intended to express that the element or feature may be provided once or multiple times, are typically used only once, for example, when the feature or element is first introduced. When the feature or element is subsequently mentioned again, the corresponding expressions “at least one” or “one or more” are generally no longer used, without limiting the possibility that the feature or element may be provided once or multiple times.

[0011] Furthermore, the expressions “preferredly,” “particularly,” “for example,” or similar expressions are used hereinafter in conjunction with optional features, and alternative embodiments are not limited thereto. Therefore, features introduced by these terms are optional features and are not intended to limit the scope of the claims, particularly the independent claims. Thus, as those skilled in the art will understand, the invention can also be implemented using other configurations. Similarly, features described by phrases such as “in one embodiment of the invention” or “in a working example of the invention” are understood as optional features and do not imply that alternative configurations or the scope of the independent claims are limited thereto. Furthermore, all possible combinations of the features thus introduced with other features, whether optional or non-optional, should remain unaffected by these introductory expressions.

[0012] Sizes will be referred to in the following text using common abbreviations. Specifically, the abbreviations for units are as follows: hour "h", minute "min", second "s", meter "m", centimeter "cm", millimeter "mm", degree Celsius "°C", Kelvin "K", and percentage "%".

[0013] One aspect of the invention relates to an apparatus for continuously reacting a liquid with at least one other fluid, the apparatus comprising a jet circulation reactor and an external liquid loop having a longitudinal axis in which an internal circulating flow can be formed, wherein liquid drawn from one point in the jet circulation reactor can be fed into the jet circulation reactor at another point through the external liquid loop, wherein at least two guide tubes are arranged side by side inside the jet circulation reactor and divide the interior into an internal flow space within the guide tubes and an external flow space outside the guide tubes, wherein the external flow space is a continuous space extending radially between the guide tubes and together with the internal flow space forms a space through which the internal circulating flow passes.

[0014] Another aspect of the invention relates to a method for continuously reacting a liquid with at least one other fluid, wherein the reaction is carried out in a jet circulation reactor of the invention.

[0015] Contrary to the prevailing view in the art that jet recirculation reactors must have a long and slender structure, it has been found that good mixing of the reaction medium can be ensured even when the guide tubes are connected in parallel in a shared flow space. The arrangement of multiple guide tubes in the shared flow space of this invention enables larger, particularly wider, reactors, in which greater production capacity is possible without sacrificing the quality of the products produced.

[0016] definition

[0017] As used herein, the following terms are broad terms that should be given their common and ordinary meanings as understood by those skilled in the art. These terms are not limited to specific or appropriate meanings.

[0018] The term "fluid" refers to a freely flowing substance that can be single-phase or multi-phase, gaseous or liquid. Examples of fluids include: a liquid or gas of a single substance, a liquid or gas mixture of multiple substances, and a liquid containing dispersed or dissolved gaseous components of individual substances or mixtures of substances.

[0019] The term "jet recirculation reactor" refers to a closed vessel that can be used as a reactor, containing an internal device designed to allow fluid to flow within the vessel, wherein the fluid can flow as an internal recirculating flow through and around the internal device. The internal device may specifically include guide tubes that are open at both ends to allow fluid flow. The term "reactor" is used hereinafter synonymously with the term "jet recirculation reactor".

[0020] In one embodiment, the jet circulation reactor is a cylindrical container with a vertical cylindrical axis, which in this case corresponds to the longitudinal axis of the jet circulation reactor. The coverage area of ​​the container perpendicular to the cylindrical axis can have any shape suitable for use as a reactor for reacting a liquid with another fluid. The inner wall of the container preferably has a rounded or elliptical coverage area, more preferably circular.

[0021] In another embodiment, the jet circulation reactor is a vessel having a vertical longitudinal axis and an inner diameter that varies along the longitudinal axis. Such a jet circulation reactor may have, for example, multiple sections with different inner diameters, which are connected to each other via steps or continuously. In one configuration, the jet circulation reactor may have a larger inner diameter at its bottom end than at its top end. In another configuration, the jet circulation reactor may have a larger inner diameter at its top end than at its bottom end. In yet another configuration, the jet circulation reactor may have a larger inner diameter in its central section than at both its bottom and top ends. In yet another configuration, the jet circulation reactor may have a smaller inner diameter in its central section than at both its bottom and top ends.

[0022] In one embodiment, the jet circulation reactor has at least one liquid feeder, at least one feeder for another fluid, and at least one product extractor for liquid reaction products. Preferably, the jet circulation reactor also has an extractor for gaseous fluids.

[0023] In one embodiment, the product extractor is located at the bottom of the jet circulation reactor. In another embodiment, the product extractor is located at the top of the jet circulation reactor. In yet another embodiment, the product extractor is located in the external liquid loop. The jet circulation reactor may also have multiple product extractors, which may be located at the same or different points within the jet circulation reactor. For example, the jet circulation reactor may have multiple product extractors located at the top, bottom, and / or in the external liquid loop.

[0024] In a configuration where the product extractor for liquid reaction products is located at the top, the jet-circulating reactor may have a baffle or weir inside, through which the liquid present in the reactor overflows into a channel connected to the product extractor. In this configuration, the upper edge of the baffle or weir forms the upper limit of the liquid level inside the reactor.

[0025] In another configuration where the product extractor for the liquid reaction products is located at the top, the jet circulation reactor can have one or more extractors that discharge radially from the sides. The extractors can be designed, for example, as ports. In the case of multiple extractors, their cross-sectional areas are preferably equal. Inside the reactor, structural elements, such as metal sheets or covers, can be positioned upstream of the extractors to reduce or completely prevent vortices in the liquid flowing in the external flow space.

[0026] The liquid to be converted in the jet circulation reactor is fed into the jet circulation reactor via at least one liquid feeder. In one embodiment, the liquid feeder is located at the top of the jet circulation reactor. In another embodiment, the liquid feeder is located at the bottom of the jet circulation reactor.

[0027] In one embodiment, the liquid feeder includes a plurality of partial feeders, the number of which corresponds at least to the number of guide tubes. Preferably, each guide tube is assigned at least one partial feeder.

[0028] In one configuration of this embodiment, the ejection openings of the partial feeders each point towards one end of the guide tube. In a variation of this configuration, the ejection openings of the partial feeders each point towards the center of the cross-sectional area at one end of the guide tube. This has the advantage of enabling substantially uniform flow through the guide tube in the radial direction.

[0029] In one configuration of this embodiment, each part feeder includes at least one nozzle. A useful nozzle is any design capable of delivering liquid in the injection direction. The nozzle can preferably be designed as a powered injection nozzle.

[0030] The apparatus of the present invention includes an external liquid loop through which liquid extracted at one point in the jet circulation reactor can be fed back into the jet circulation reactor at another point. Preferably, liquid is removed from the jet circulation reactor at a point as far away as possible from the liquid feed point. In one embodiment where the liquid feeder is located at the top of the jet circulation reactor, liquid is preferably removed at its bottom. In a variation of this embodiment, the extractant of the liquid circulation is a substream of the product extractant. In one embodiment where the liquid feeder is located at the bottom of the jet circulation reactor, liquid is preferably extracted at its top.

[0031] The liquid to be converted in the liquid feeder and the liquid in the external liquid circuit can be supplied at the same point, at the same point, or at different points.

[0032] In one embodiment, the liquid feed and liquid circulation are first combined to form a single flow, which is then fed into a jet circulation reactor. The liquid feed for the liquid to be converted can, for example, be fed into a conduit of the liquid circulation. In one configuration of this embodiment, a mixing device for mixing the two fluid flows is located downstream of the point where the liquid circulation and liquid feed merge in the flow direction. The mixing device is preferably designed as a static mixer. In another configuration of this embodiment, it is advantageous to discharge the product extractor from the liquid circulation upstream of the merger of the liquid feed and liquid circulation.

[0033] In one embodiment, liquid feed and liquid recirculation are fed into the jet recirculation reactor, respectively.

[0034] In one configuration of this embodiment, the liquid feeder and the liquid circulation each include a plurality of partial feeders, the number of which at least corresponds to the number of guide tubes. Preferably, each guide tube is assigned at least one partial feeder.

[0035] In one configuration of this embodiment, the outlet openings of the liquid feeder and the liquid circulation partial feeder are designed such that the respective departing liquid flows come into contact before flowing into the respective guide tubes.

[0036] In one embodiment, the liquid recirculation feed and / or the liquid to be converted in the jet recirculation reactor is fed via outlets, the number of which corresponds at least to the number of guide tubes. Preferably, each guide tube is assigned at least one outlet. The outlets are preferably selected such that a desired flow volume and velocity range can be established. The outlets are preferably nozzles. More preferably, each guide tube is assigned at least one nozzle. One advantage of this embodiment is that the supplied liquid is uniformly distributed across all guide tubes. Thus, the available reactor volume is utilized with maximum uniformity.

[0037] In one configuration of this embodiment, the exit openings of the outlets each point towards one end of the guide tube. In a variant of this configuration, the exit openings of the outlets each point towards the center of the cross-sectional region at one end of the guide tube.

[0038] In one configuration of this embodiment, with one or more guide tubes, liquid circulation is supplied via at least two outlets of each guide tube. In a variant, each guide tube is assigned multiple outlets. In this configuration, the exit openings of the outlets are preferably aligned such that the feed flow generated by all outlets of each guide tube is, in its respective case, guided to the center of the cross-sectional region at one end of the guide tube.

[0039] In a variant of this configuration, the exit opening of each guide tube is located at a different distance from the guide tube. The exit openings can be arranged in groups based on their distance from the guide tube, or they can each be located at a different distance from the guide tube. For example, the difference in distance can range from 3 cm to 20 cm.

[0040] In one embodiment where the liquid feeder is located at the top of the jet circulation reactor, the outlet is preferably configured such that the exiting liquid jet flows downward in a vertical direction. In one embodiment where the liquid feeder is located at the bottom of the jet circulation reactor, the outlet is preferably configured such that the exiting liquid jet flows upward in a vertical direction.

[0041] In one embodiment, the liquid circulation includes at least one pump that delivers the extracted liquid into the jet circulation reactor in the direction of its inlet. The pump is preferably configured such that it can generate a pressure differential of up to 20 bar between the suction side and the pumping side.

[0042] In one embodiment, the liquid circulation has at least one heat exchanger. In one variant, the heat exchanger is designed to cool the liquid in the circulation by at least 5 K, preferably at least 7 K, such as 8 K, 9 K, 10 K, 15 K, 20 K or more. The heat exchanger is preferably designed such that cooling occurs in a time period of less than 30 s, preferably less than 20 s, and particularly less than 10 s.

[0043] In one embodiment, the liquid circulation includes an additional reactor. In one variation, the additional reactor is configured as a vessel fed by a liquid stream drawn from the jet circulation reactor, and the product stream from the vessel is returned to the jet circulation reactor as liquid circulation feed. In this variation, the vessel may be configured as, for example, a stirred tank reactor or a bubble column reactor. In another variation, the pipe through which the liquid circulation is carried out takes the form of another reactor.

[0044] In all variations, it is advantageous to feed the additional fluid required for the reaction into the liquid reaction mixture upstream of or within the reactor. This can be achieved, for example, by nozzles or rings having outlets for the additional fluid, positioned in the pipe or reactor. This allows for an increase in the space-time yield and selectivity of the desired reaction. Furthermore, in the pipe or reactor, devices, such as static mixers, can be provided to improve the distribution of the reaction mixture and mass transfer during the reaction.

[0045] An additional fluid to be converted in the jet circulation reactor is fed into the jet circulation reactor via at least one feeder for the additional fluid. The additional fluid can be a gas, liquid, or multiphase mixture. In one embodiment, the additional fluid is a gaseous single substance or a gaseous mixture of several substances. The additional fluid can be fed into the jet circulation reactor at one or more points.

[0046] In one embodiment, at least one sub-stream for the feed of another fluid is fed into the reactor at the top. In one configuration of this embodiment, the outlet of the sub-stream fed at the top of the reactor is at the outlet level of the liquid circulation and / or at the outlet level of the liquid feed to be converted in the jet circulation reactor.

[0047] In one embodiment, at least one sub-stream for the feed of another fluid is fed into the reactor at the bottom. In one configuration of this embodiment, the sub-stream for the feed of another fluid is fed into the jet circulation reactor at the bottom between the bottom ends of the guide tubes, and into a product extractor located at the bottom of the jet circulation reactor.

[0048] In one embodiment, at least one sub-flow for feeding another fluid is directed to the liquid circulation.

[0049] In one embodiment, the feeder for the additional fluid comprises a plurality of partial feeders distributed along the height of the jet circulation reactor. In this context, the height of the jet circulation reactor refers to its extent along a vertical longitudinal axis.

[0050] In one embodiment, the feeder for an additional fluid includes at least one distributor ring having a plurality of ejection openings for the fluid. The distributor ring is preferably located in the external flow space.

[0051] In one configuration of this embodiment, the feeder for an additional fluid includes at least two distributor rings having multiple ejection openings for the fluid. In one variant, the at least two distributor rings have different diameters. In another variant, the at least two distributor rings are at different heights in the reactor. In yet another variant, the at least two distributor rings have different diameters and are at different heights in the reactor.

[0052] In one configuration of this embodiment, the feeder for the additional fluid includes: a first set of distributor rings having a first diameter and, in each case, a plurality of outlets for the additional fluid; and a second set of distributor rings having a second diameter and, in each case, a plurality of outlets for the additional fluid, wherein the second diameter is smaller than the first diameter, and each set includes at least one distributor ring. Here, the first diameter and the second diameter, in their respective cases, refer to the average diameter of the corresponding distributor ring, which can be defined, for example, as half the sum of the inner and outer diameters of the corresponding distributor ring: D_average = (D_inner + D_outer) / 2.

[0053] In one configuration of this embodiment, the ratio of the first diameter of the distributor ring of the first group to the inner diameter of the jet circulation reactor is 0.95 to 0.15, for example 0.95, 0.9, 0.85, 0.8, 0.75, 0.7, 0.65, 0.6, 0.55, 0.5, 0.45, 0.4, 0.35, 0.3, 0.25, 0.2, 0.15, or any other ratio within this range.

[0054] In one configuration of this embodiment, the ratio of the second diameter of the distributor ring of the second group to the inner diameter of the jet circulation reactor is 0.9 to 0.2, for example, 0.9, 0.85, 0.8, 0.75, 0.7, 0.65, 0.6, 0.55, 0.5, 0.45, 0.4, 0.35, 0.3, 0.25, 0.2, or any other ratio within this range.

[0055] In one configuration of this embodiment, the distributor rings are arranged alongside the guide tubes in the radial direction. Preferably, the distributor rings having a first diameter and a second diameter are arranged alternately in the axial direction.

[0056] In a variant where the flow passes downwards through the guide tube from the top, a distributor ring of a first diameter is preferably present at the level of the lower edge of the guide tube or at the bottom end of the guide tube where it deflects the downward-flowing liquid. This has the advantage that the laterally deflected liquid flowing downwards out of the guide tube undergoes very thorough mixing with the other fluid, which promotes good mixing. It is also preferred that, in this variant, a distributor ring of a second diameter is present at the level of the top of the guide tube. This has the advantage that the reaction mixture flowing back into the guide tube is re-enriched with the other fluid before entering the guide tube, which can promote the reaction in the guide tube.

[0057] In one configuration of this embodiment, each distributor ring has a plurality of exit openings, wherein the ratio of the diameter of the exit opening to the distance between the centers of adjacent exit openings is 0.1 to 1, for example 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.

[0058] In one configuration of this embodiment, each distributor ring has multiple exit openings, wherein the ratio of the cross-sectional area of ​​the distributor ring to the sum of the exit areas of all exit openings is 1 to 5, for example 1, 2, 3, 4, 5 or any value within this range.

[0059] In one configuration of this embodiment, the diameter of the exit opening is from 0.3 mm to 20 mm, preferably from 0.5 mm to 12 mm, and more preferably from 2 mm to 9 mm.

[0060] In one configuration of this embodiment, the exit opening is on the top side of the distributor ring. In another embodiment, the exit opening is on one side of the distributor ring, allowing additional fluid to exit substantially radially from the distributor ring. In yet another embodiment, some exit openings are on the top side of the distributor ring; others are located on one or both sides of the distributor ring.

[0061] The exit openings can be uniformly or non-uniformly distributed in the circumferential direction; preferably, they are uniformly distributed such that the distance between any two adjacent exit openings is the same. The exit openings can be arranged in straight or curved rows, for example, along circumferential lines corresponding to the average diameter of the distributor ring. In one variation, the exit openings are arranged side-by-side in at least two rows, for example, on an inner and outer circumferential line, wherein the inner circumferential line has a smaller diameter and the outer circumferential line has a larger diameter than the average diameter of the distributor ring. This variation is particularly advantageous for distributor rings with small exit openings (e.g., opening diameter less than 2 mm).

[0062] The ejection opening can have different shapes. In one embodiment, the ejection opening is designed as a cylindrical hole in the dispenser ring. In a variant, the end of the ejection opening is chamfered or rounded.

[0063] In one configuration of this embodiment, each distributor ring includes two feeders for additional fluid, which open onto the distributor ring on opposite sides.

[0064] At least two guide tubes are arranged side by side inside the jet circulation reactor, dividing the interior into an internal flow space within the guide tubes and an external flow space outside the guide tubes. The external flow space is a continuous space extending radially between the guide tubes and together with the internal flow space forms a space through which the internal circulating flow passes.

[0065] In this context, the expression "side by side" means that the guide tubes are adjacent to each other in the radial direction. The guide tubes are preferably arranged parallel to each other. In one embodiment, each guide tube has a tube axis extending parallel to the longitudinal axis of the jet circulation reactor. The outer shell surfaces of the guide tubes may contact each other or be spaced apart from each other in the radial direction.

[0066] The construction and possible configurations of the guide tube are known from the prior art. The guide tube is preferably designed as a straight tube with two open ends on opposite sides. The guide tube can be secured inside the jet circulation reactor by means of known fastening elements (such as supports, strips, tracks, angled connectors, etc.). The materials used to manufacture the guide tube and any fastening elements are preferably matched to the corresponding end use, for example, in terms of mechanical or chemical resistance or corrosion resistance. Depending on the end use, plastics, fiber-reinforced plastics, metals, metal alloys, or combinations thereof are suitable materials.

[0067] In one embodiment, the cross-sectional area of ​​the end of the guide tube lies in the same plane at least on one side of the guide tube.

[0068] In one embodiment, at least three guide tubes are arranged side by side inside the jet circulation reactor, wherein, in a cross section perpendicular to the longitudinal axis of the jet circulation reactor, the center of the guide tubes lies on a straight line passing through the center of the cross section.

[0069] In one embodiment, at least three guide tubes are arranged side-by-side inside the jet circulation reactor, wherein, in a cross-section perpendicular to the longitudinal axis of the jet circulation reactor, the center of each guide tube lies on a circular line concentric with the center of the cross-section. The centers of the guide tubes are preferably evenly distributed along the circular line.

[0070] In one embodiment, at least four guide tubes are arranged side-by-side inside the jet circulation reactor, wherein, in a cross-section perpendicular to the longitudinal axis of the jet circulation reactor, the inner guide tube is positioned at the center of the cross-section, and the centers of the remaining guide tubes, which serve as outer guide tubes, are located on a circular line concentric with the center of the cross-section. The centers of the guide tubes are preferably evenly distributed along the circular line.

[0071] In one configuration of this embodiment, the inner guide tube is longer than the outer guide tube, and the bottom end of the inner guide tube protrudes beyond the bottom end of the outer guide tube.

[0072] In one embodiment, the jet circulation reactor includes at least three, preferably at least four guide tubes. Preferably, the jet circulation reactor includes no more than twelve, preferably no more than nine, and more preferably no more than six guide tubes. The number of guide tubes can be matched with the corresponding requirements regarding the reaction to be carried out, especially regarding the required or desired liquid volume in the reactor. The more parallel guide tubes present, the larger the selected diameter of the reactor can be without adversely affecting the flow characteristics in the reactor. For a given volume, the reactor can have a correspondingly shorter construction, which brings benefits in terms of capital costs and reactor operation. On the other hand, guide tubes also incur capital and maintenance costs, and therefore the number of guide tubes should be as small as possible.

[0073] In one embodiment, the cross-sectional areas of the guide tubes differ from each other by no more than 30%, more preferably no more than 20%, more preferably no more than 10%, and especially no more than 1%.

[0074] In one embodiment, the ratio of the total cross-sectional area of ​​all the guide tubes to the cross-sectional area inside the jet circulation reactor is 3% to 50%, preferably 5% to 30%. One advantage of this embodiment is that it establishes a stable circulation of the internal circulating flow within the reactor.

[0075] In one embodiment, the length-to-diameter ratio of each guide tube is from 3 to 20, preferably from 5 to 10.

[0076] In one embodiment, the ratio of the length to the inner diameter of each guide tube of the jet circulation reactor is from 0.4 to 9, preferably from 0.6 to 5. It has been found that a high circulation rate of the internal circulation flow can be achieved when the ratio is selected within these ranges.

[0077] In one embodiment, the guide plate, positioned at the top of the jet recirculation reactor between the guide tubes, extends radially toward the inner wall of the reactor, preferably as far as the inner wall. Axially, the guide plate covers the lower portion of the nozzle in the upward direction, the upper portion of the guide tube in the downward direction, or both. An advantage of this embodiment is that the flow distribution in the region where the internal circulating flow enters the guide tube is homogenized.

[0078] In order to establish an internal circulating flow in a jet recirculation reactor, it is necessary to connect the internal flow space within the guide tube to an external flow space outside the guide tube, in such a way that liquid exiting from one end of the guide tube returns to the other end of the guide tube through the external flow space. The return through the external flow space may be influenced by the internal structural design of the jet recirculation reactor, for example, through internal shaping and / or the provision of internal devices to guide the liquid flow in a suitable manner.

[0079] In one embodiment, where the flow passes from top to bottom through the internal flow space within the guide tube, a deflection device is positioned below the guide tube to deflect the flow exiting the guide tube.

[0080] In one configuration of this embodiment, the deflection device is a baffle. In a variation, the baffle is sized such that its outer diameter is at least as large as the outer circumference of the envelope surrounding all the guide tubes. In this context, "envelope" refers to the geometrically shortest continuous curve that can be drawn in cross-section around all the guide tubes. Another name for the envelope is the envelope curve.

[0081] In one embodiment, the deflection device for deflecting the flow exiting the guide tubes has a first annular groove having a bottom and an outer wall. Preferably, the diameter of the edge of the outer wall is larger than the diameter of the envelope surrounding all the guide tubes. The inner diameter of the annular groove is preferably such that at least some of the liquid flowing out of the guide tubes flows into the groove.

[0082] In one configuration of this embodiment, the deflection device has a first annular groove having an inner wall, a bottom connected to the inner wall, and an outer wall connected to the bottom. In an alternative embodiment, the inner wall is directly connected to the outer wall, omitting the bottom. Preferably, the diameter of the edge of the outer wall is larger than the diameter of the envelope surrounding all the guide tubes. The diameter of the inner wall of the annular groove is preferably such that at least some of the liquid flowing out of the guide tubes flows into the groove.

[0083] In another configuration of this embodiment, the deflecting device has a second annular groove having a bottom and an outer wall. In an alternative embodiment, the inner wall is directly connected to the outer wall, omitting the bottom. Preferably, the diameter of the inner edge of the second annular groove is larger than the diameter of the inner edge of the first annular groove, and the diameter of the edge of the outer wall of the second annular groove is smaller than the diameter of the edge of the outer wall of the first annular groove. The second annular groove is preferably located between the bottom end of the guide tube and the first annular groove. The inner diameters of the first and second annular grooves are preferably such that at least a portion of the liquid flowing out of the guide tube flows into the first groove, and at least another portion of the liquid flowing out of the guide tube flows into the second groove.

[0084] In another configuration of this embodiment, the deflection device has a second annular groove having an inner wall, a bottom connected to the inner wall, and an outer wall connected to the bottom. Preferably, the diameter of the edge of the inner wall is larger than the diameter of the edge of the inner wall of the first annular groove, and the diameter of the edge of the outer wall of the second annular groove is smaller than the diameter of the edge of the outer wall of the first annular groove. The second annular groove is preferably located between the guide tube and the first annular groove. The diameters of the inner walls of the first and second annular grooves are preferably such that at least a portion of the liquid flowing out of the guide tube flows into the first groove, and at least another portion of the liquid flowing out of the guide tube flows into the second groove.

[0085] The jet circulation reactor is suitable for continuous reactions of liquids with at least one other fluid and can be used in a variety of reaction systems. In one embodiment of the method of the invention, oxidation, epoxidation of olefins, hydroformylation, hydroamination, hydroaminomethylation, hydrocyanation, hydrocarboxylation, amination, ammoxidation, oximeation, or hydrogenation are carried out in the jet circulation reactor, and preferably, hydroformylation is used to react compounds having olefinic double bonds with syngas to produce aldehydes and / or alcohols.

[0086] Detailed description

[0087] Further details and features of the invention will become apparent from the following description of preferred embodiments, particularly in conjunction with the dependent claims. In this context, corresponding features may be implemented individually, or two or more features may be implemented in combination with each other. The invention is not limited to the embodiments. Embodiments are schematically shown in the accompanying drawings. The drawings should be considered as schematic diagrams. They do not constitute a limitation on the invention, for example, with respect to particular dimensions or configuration variations, unless otherwise indicated in the description of the drawings. Identical reference numerals in the various drawings refer to elements that are the same or have the same function, or that correspond to each other in terms of their function.

[0088] The various figures are illustrated in schematic form:

[0089] Figure 1First embodiment of the device of the present invention

[0090] Figure 2 Second embodiment of the device of the present invention

[0091] Figure 3 The third embodiment of the device of the present invention

[0092] Figure 4 Fourth embodiment of the device of the present invention

[0093] Figure 5 Details of the fifth embodiment of the device of the present invention

[0094] Figure 6 Examples of liquid and other fluid supply

[0095] Figure 7: Illustrative arrangement of the cross-section of the guide tube

[0096] Work Example

[0097] Figure 1 A schematic diagram of a first embodiment of the apparatus of the present invention for continuously reacting a liquid with at least one other fluid is shown. The apparatus includes a jet circulation reactor 1, which is in the form of a cylindrical container with a vertical cylindrical axis. The cross-section of the container is preferably circular. A liquid feeder 7, a feeder 6 for the other fluid, and an extractor 4 for the gaseous fluid are located at the top of the jet circulation reactor 1. A product extractor 5 for discharging the liquid reaction products is located at the bottom of the container.

[0098] Furthermore, the jet circulation reactor 1 has an external liquid loop 2 through which liquid extracted at one point in the jet circulation reactor 1 can be fed back into the jet circulation reactor 1 at another point. In the example shown, liquid is removed from the product extractor 5 located at the bottom of the vessel and its feed is returned to the top of the jet circulation reactor 1. The external liquid loop 2 is conveyed by a pump 9 within the external liquid loop. The liquid in the external circulation passes through a heat exchanger 10, in which heat can be supplied to or removed from the liquid. Therefore, for example, the temperature of the liquid fed into the jet circulation reactor 1 at the top can be set to a defined value to influence the process conditions of the reaction carried out in the jet circulation reactor.

[0099] Inside the jet circulation reactor 1, at least two guide pipes 3 arranged side by side divide the interior into an internal flow space within the guide pipes 3 and an external flow space outside the guide pipes 3. Figure 1 In the example shown, three guide tubes 3 are arranged side by side, wherein the center of the guide tube 3 lies on a straight line passing through the center of the cross section perpendicular to the axis of the cylinder. Figure 7AThe arrangement of the guide tubes is shown in cross-section. Other arrangements of the guide tubes 3 are also possible, for example, as shown below. Figure 7B and Figure 7C The arrangement shown. The outer flow space surrounding the guide tubes is a continuous space that extends radially between the guide tubes 3 and, together with the inner flow space, forms a space in which an internal circulating flow can be formed.

[0100] exist Figure 1 In the example shown, the guide tubes 3 are arranged parallel to each other, and each has a tube axis extending parallel to the cylindrical axis. The outer shell surfaces of the guide tubes 3 are spaced apart from each other in the radial direction. The cross-section of the guide tubes 3 is circular and the guide tubes have the same length. The cross-sectional regions at the top and bottom of the guide tubes are each in the same plane. The guide tubes 3 are arranged in the jet circulation reactor 1 in such a way that the guide tubes are completely surrounded by liquid during operation. Figure 1 In the middle, the liquid level is indicated by an inverted triangle.

[0101] The liquid to be converted is fed at the top of the jet circulation reactor 1. In the example shown, the liquid feeder 7 leads to the liquid circulation 2, resulting in the merging of the two streams into one stream, which is then fed into the jet circulation reactor 1. Downstream of the merging point of the liquid circulation 2 and the liquid feeder 7 in the flow direction, a mixing device, such as a static mixer, may be present for mixing the two fluid streams. The merged stream from the liquid feeder 7 and the liquid circulation 2 is fed into the jet circulation reactor 1 via multiple sub-feeders. In the example shown, there are three sub-feeders, each assigned to a guide tube 3. The exit openings of the sub-feeders each point to one end of the guide tube 3, preferably to the center of the cross-sectional area at the top of each guide tube. The sub-feeders can be designed as, for example, nozzles 8, particularly powered jet nozzles.

[0102] The additional fluid to be converted in the jet circulation reactor 1 is also fed from the top of the reactor. Figure 1 In the example shown, additional fluid is supplied via feeder 6, whose outlet is located at the same level as the outlet of the liquid portion of the feeder. All feeder outlets are positioned such that they are above the liquid level when the reactor is filled. In operation, the liquid exiting nozzle 8 creates a liquid jet that first impacts and mixes with the liquid surface and creates a downward flow in guide tube 3. Additional fluid is entrained and mixed with the liquid by the jet effect of the injected liquid.

[0103] In the bottom of the jet circulation reactor 1, below the bottom end of the guide pipe 3, a baffle 11 is installed. This baffle acts as a deflector for the flow leaving the guide pipe. In this example, the baffle is sized such that its outer diameter is slightly larger than the outer circumference of the envelope surrounding all the guide pipes. The liquid leaving the guide pipe 3 is deflected laterally in the radial direction by the baffle 11 and flows upward again through the external flow space to the inlet of the guide pipe 3. Thus, an internal circulating flow is formed in the jet circulation reactor 1, which... Figure 1 The middle is indicated by a dashed arrow.

[0104] A portion of the liquid falls below the baffle at the bottom of the jet circulation reactor 1 and is discharged through the product extractor 5. Due to the external liquid loop 2, the sub-stream of the product extractor 5 is recirculated back to the top of the reactor; the remainder is extracted as the product stream. For example, gases formed during the reaction or introduced into the reactor from the outside that do not dissolve or react in the liquid can be removed at the top of the jet circulation reactor 1 by the extractor 4 for gaseous fluids.

[0105] Figure 2 A schematic diagram of a second embodiment of the apparatus of the present invention for continuously reacting a liquid with at least one other fluid is shown. This embodiment is similar to... Figure 1 The difference in the first embodiment shown is that additional fluid is supplied at several points in the jet circulation reactor 1. This embodiment is particularly suitable for applications where the additional fluid is supplied in gaseous form.

[0106] A first distributor ring 12 is mounted below a baffle 11 and has multiple outlet openings for additional fluids. The diameter of the first distributor ring is larger than the diameter of the baffle 11, allowing gas introduced through the distributor ring 12 to rise as bubbles and mix with the liquid present in the reactor. Five additional distributor rings are distributed at the height of the jet circulation reactor 1. Three of the distributor rings form a first set of distributor rings 13 with a first diameter, and the other two form a second set of distributor rings 14 with a second diameter smaller than the first diameter. Each distributor ring has multiple outlets for additional fluids.

[0107] The first group of distributor rings 13 are located at three different heights at a first distance from the inner wall of the jet circulation reactor 1, wherein the axial distance between the lowermost distributor ring and the middle distributor ring is less than the distance between the middle distributor ring and the uppermost distributor ring. The second group of distributor rings 14 are located at two different heights at a second distance from the inner wall of the reactor, greater than the first distance. In the axial direction, the second group of distributor rings 14 is located between the uppermost and lowermost distributor rings of the first group of distributor rings 13. Figure 2In the example shown, the lowermost distributor of the second set of distributors 14 is at the same axial height as the middle distributor of the first set of distributors 13. However, this arrangement at the same height is not mandatory. The corresponding distributor rings may also be above or below the first set of intermediate distributor rings 13.

[0108] The cross-sectional areas of the distributor rings can be the same or different. Figure 2 In the example shown, the cross-sectional area of ​​the first set of distributor rings 13 is greater than the cross-sectional area of ​​the second set of distributor rings 14 and the cross-sectional area of ​​the distributor ring 12 below the baffle 11. The size and positioning of the distributor rings are preferably selected such that additional fluid introduced through the distributor rings is uniformly and substantially completely mixed with the liquid circulating in the internal circulation flow.

[0109] Figure 3 A schematic diagram of a third embodiment of the apparatus of the present invention for continuously reacting a liquid with at least one other fluid is shown. This third embodiment is related to... Figure 1 The difference in the first embodiment shown is the design of the guide tube 3 and the deflection device below the guide tube 3.

[0110] Inside the jet circulation reactor 1, five guide tubes 3 arranged side-by-side divide the interior into an internal flow space within the guide tubes 3 and an external flow space outside the guide tubes 3. In a cross-section perpendicular to the cylindrical axis, the inner guide tube is located at the center of the cross-section, and the centers of the remaining guide tubes, which serve as outer guide tubes, are located on a circular line concentric with the center of the cross-section. The centers of the outer guide tubes are preferably evenly distributed along the circular line, such as... Figure 7B This is illustrated through examples. Figure 3 In the example shown, the guide tubes 3 are arranged parallel to each other and each has a tube axis extending parallel to the cylindrical axis. The outer shell surfaces of the guide tubes 3 are spaced apart from each other in the radial direction. The cross-section of the guide tubes 3 is circular. The inner guide tube is longer than the outer guide tube in the axial direction, and these outer guide tubes are of the same length. The cross-sectional regions at the top ends of the guide tubes 3 lie in the same plane. The bottom end of the inner guide tube protrudes beyond the bottom end of the outer guide tube.

[0111] The combined flow from liquid feeder 7 and liquid circulation 2 is fed into jet circulation reactor 1 via five partial feeders, each of which is assigned to a guide tube 3. The exit openings of each partial feeder point to one end of the guide tube 3, preferably to the center of the cross-sectional area at the tip of each guide tube. The partial feeders can be designed as, for example, nozzles 8, particularly powered jet nozzles. Additional fluids to be converted in jet circulation reactor 1 are also fed from the top of the reactor. Figure 3 In the example shown, additional fluid is supplied through feeder 6, whose outlet is located at the same level as the outlet of the liquid portion of the feeder.

[0112] The deflection device for deflecting the flow exiting the guide tube 3 has a first annular groove 15 and a second annular groove 16, the second annular groove being located axially between the bottom end of the outer guide tube 3 and the first annular groove 15. The first annular groove 15 includes an inner wall, a bottom connected to the inner wall, and an outer wall connected to the bottom. The diameter of the inner wall is larger than the outer diameter of the inner guide tube, but smaller than the radial distance between the opposing outer guide tubes.

[0113] The second annular groove 16 includes an inner wall, a bottom connected to the inner wall, and an outer wall connected to the bottom. The diameter of the inner edge of the second annular groove 16 is larger than the diameter of the inner edge of the first annular groove 15, but smaller than the diameter of the envelope surrounding the outer guide tube 3. This geometric design and the positioning of the second annular groove 16 above the first annular groove 15 have the effect that liquid flowing out of the outer guide tube 3 partially flows into the first groove 15 and partially flows into the second groove 16. The diameter of the edge of the outer wall of the second annular groove 16 is larger than the diameter of the envelope surrounding all the guide tubes and smaller than the diameter of the edge of the outer wall of the first annular groove 15. The outer walls of the two grooves are each inclined upwards, such that liquid flowing from the guide tube 3 to the bottom of the corresponding groove is radially guided to the side and inclined upwards. In the bottom of the jet circulation reactor 1, a baffle 11 is installed below the bottom end of the inner guide tube, the diameter of which is larger than the outer diameter of the inner guide tube. Liquid leaving the inner guide tube is deflected to the side in the radial direction by the baffle 11.

[0114] In this embodiment, the liquid flow exiting from the bottom of the guide tube is divided into three sub-flows. These three sub-flows flow radially back to the side and upward through the external flow space to reach the inlet of the guide tube 3. The liquid exiting the guide tube 3 is divided into three sub-flows, which are fed into the external flow space at different points in the axial direction, resulting in thorough mixing, which is beneficial to the reaction mechanism in the reactor.

[0115] Figure 4 A schematic diagram of a fourth embodiment of the apparatus of the present invention for continuously reacting a liquid with at least one other fluid is shown. This fourth embodiment is related to... Figure 3 The difference in the third embodiment shown is the configuration of the deflection device below the guide tube 3, and the supply of additional fluid at several points in the jet circulation reactor 1.

[0116] The deflection device for deflecting the flow exiting the guide tube 3 has a first annular groove 15, which has a bottom and an outer sidewall. In a longitudinal section, the shape of the groove 15 curves upward toward its outer contour, wherein the bottom and sidewall continuously engage with each other. The inner diameter of the groove 15 is larger than the outer diameter of the inner guide tube, but smaller than the radial distance between the opposing outer guide tubes. The outer diameter of the edge of the outer sidewall, and therefore the outer diameter of the groove 15, is larger than the diameter of the envelope surrounding all the guide tubes. The liquid flowing out of the outer guide tube is at least partially collected by the groove 15 and is radially guided to the side and obliquely guided upward. In the bottom of the jet circulation reactor 1, a baffle 11 is installed below the bottom end of the inner guide tube, the diameter of which is larger than the outer diameter of the inner guide tube. The outer edge of the baffle 11 curves upward, such that the liquid exiting the inner guide tube is collected by the baffle 11 and deflected radially to the side and obliquely upward.

[0117] Five distributor rings are provided for feeding additional fluid into the jet circulation reactor 1. A first distributor ring 12 is mounted below a baffle 11 and has multiple outlet openings for the additional fluid. The diameter of the first distributor ring corresponds to the outer diameter of the baffle 11. Gas introduced through the distributor ring 12 rises upward in the form of bubbles and is entrained and thoroughly mixed with the liquid flow exiting from the inner guide tube, which is deflected upward by the baffle 11. Four additional distributor rings are distributed at the height of the jet circulation reactor 1. Two of the distributor rings form a first set of distributor rings 13 with a first diameter, and the other two form a second set of distributor rings 14 with a second diameter smaller than the first diameter. Each distributor ring has multiple outlets for the additional fluid.

[0118] The first set of distributor rings 13 are located at two different heights at a first distance from the inner wall of the jet circulation reactor 1, with the lowermost distributor ring at the level of the lower edge of the outer guide pipe or between the lower edge of the outer guide pipe and the upper edge of the outer contour of the baffle 11. Gas introduced through this distributor ring 13 rises upward in the form of bubbles and mixes with the liquid exiting the outer guide pipe and being guided upward at an angle towards the inner wall of the reactor by the trough 15. The second set of distributor rings 14 are located at two different heights at a second distance from the inner wall of the reactor, greater than the first distance. The second set of distributor rings 14 is located at the level of the top of the guide pipe. Therefore, the upward-flowing liquid is enriched with gas again as another fluid before flowing from above into the guide pipe 3 in the internal circulation flow. The second distributor rings in the first set of distributor rings 13 and the second distributor rings in the second set of distributor rings 14 are axially spaced at approximately equal distances between the uppermost and lowermost distributor rings of these two sets of distributor rings. The size and positioning of the distributor ring are preferably selected such that additional fluid introduced through the distributor ring is uniformly and substantially completely mixed with the liquid circulating in the internal circulation flow.

[0119] Figure 5 A schematic detail of a fifth embodiment of the apparatus of the present invention for continuously reacting a liquid with at least one other fluid is shown. Figure 5 The left side shows a view of the top of the jet circulation reactor. Figure 5 The right side shows a cross section passing through the top region.

[0120] Inside the jet circulation reactor, five guide tubes 3 arranged side-by-side divide the interior into an internal flow space within the guide tubes 3 and an external flow space outside the guide tubes 3. In a cross-section perpendicular to the cylindrical axis, the centers of the guide tubes lie on a circular line concentric with the center of the cross-section. Preferably, the centers of the guide tubes are evenly distributed along the circular line. Figure 5 Examples are shown on the right side. Figure 5 In the example shown, the guide tubes 3 are arranged parallel to each other, and each has a tube axis extending parallel to the cylindrical axis. The outer shell surfaces of the guide tubes 3 are spaced apart from each other in the radial direction. The cross-section of the guide tubes 3 is circular.

[0121] The combined flow from the liquid feeder and the liquid circulation is fed into the jet circulation reactor via five partial feeders, each of which is assigned to a guide tube 3. The exit openings of each partial feeder point to one end of the guide tube 3, preferably to the center of the cross-sectional area at the tip of each guide tube. The partial feeders can be designed as, for example, nozzles 8, particularly powered jet nozzles.

[0122] There is an arrangement of guide plates 17 between the guide tubes 3, which extend radially to the inner wall of the jet circulation reactor 1. In the axial direction, the top of the guide plate 17 is higher than the exit opening of the nozzle 8, and the bottom of the guide plate 17 is lower than the top of the guide tube 3, such that the guide plate 17 still covers the lower part of the nozzle 8 at its top and the upper part of the guide tube at its bottom in the axial direction.

[0123] Figure 6 A schematic diagram of an embodiment of the supply of liquid and additional fluid, such as that available in the aforementioned working example, is shown. Enlarged details are shown, illustrating the top end of the guide tube 3, the bottom end of the nozzle 8, and the bottom end of the feeder 6 for the additional fluid. The outlet of the nozzle 8 is centrally positioned above the inlet of the guide tube 3, such that the liquid jet exiting the nozzle is centrally guided onto the surface of the guide tube. The feeder 6 for the additional fluid is designed as a conduit positioned next to the nozzle 8, with its bottom end angled in the direction of the nozzle 8. The additional fluid exiting from the outlet of the feeder 6 flows in the direction of the liquid jet exiting the nozzle orifice and is entrained by the liquid jet, and is guided in the direction of entering the guide tube 3.

[0124] Figure 7 shows a schematic diagram of the illustrative arrangement of the guide pipe 3 in a cross section passing through the jet circulation reactor 1. Figure 7A An embodiment with three guide tubes 3 is shown, wherein the center of the guide tubes 3 is located on a straight line passing through the center of the cross section. Figure 7B An embodiment with five guide tubes 3 is shown, wherein the inner guide tube is located at the center of the cross-section, and the centers of the remaining guide tubes 3, which serve as outer guide tubes, are located on a circular line concentric with the center of the cross-section. In the example shown, the centers of the four outer guide tubes are evenly distributed on the circular line, with an angle of 90° between each pair of adjacent centers.

[0125] Figure 7C and Figure 7D An embodiment with five guide tubes 3 is shown, the centers of which are located on a circular line concentric with the center of the cross-section. In the example shown, the centers of the guide tubes 3 are evenly distributed on the circular line, with an angle of 72° between each pair of adjacent centers. A feeder 6 for additional fluid is centrally located at the center of the cross-section of the jet circulation reactor 1. According to... Figure 7D In one embodiment, the distributor rings are additionally positioned in the external flow space with a first set of distributor rings 13 and a second set of distributor rings 14.

[0126] .

Claims

1. An apparatus for continuously reacting a liquid with at least one other fluid, the apparatus comprising a jet circulation reactor (1) and an external liquid circuit (2), the jet circulation reactor having a longitudinal axis, wherein an internal circulating flow is formed within the jet circulation reactor, and liquid drawn from one point in the jet circulation reactor (1) is feedable into the jet circulation reactor (1) at another point through the external liquid circuit, wherein, At least two guide tubes (3) are arranged side by side inside the jet circulation reactor (1) and divide the interior into an internal flow space within the guide tubes (3) and an external flow space outside the guide tubes (3), wherein the liquid circulation (2) and / or the liquid to be converted in the jet circulation reactor (1) are fed via nozzles (8), the number of nozzles being at least corresponding to the number of guide tubes (3), wherein each guide tube (3) is assigned at least one nozzle (8), wherein the external flow space is a coherent space extending radially between the guide tubes (3) and together with the internal flow space forms a space through which the internal circulation flow passes.

2. The device according to claim 1, wherein, At least three guide tubes (3) are arranged side by side inside the jet circulation reactor (1), wherein, in a cross section perpendicular to the longitudinal axis of the jet circulation reactor (1), the center of the guide tube (3) is located on a straight line passing through the center of the cross section or on a circular line concentric with the center of the cross section.

3. The device according to claim 1 or 2, wherein, The ratio of the total cross-sectional area of ​​all the guide pipes (3) to the internal cross-sectional area of ​​the jet circulation reactor (1) is 3% to 50%, preferably 5% to 30%.

4. The device according to any one of the preceding claims, wherein, For each guide tube (3), the ratio of the length of the guide tube to the inner diameter of the jet circulation reactor (1) is 0.4 to 9, preferably 0.6 to 5.

5. The device according to any one of the preceding claims, wherein, The ejection openings of the nozzles (8) each point to one end of the guide tube (3), preferably to the center of the cross-sectional area of ​​one end of the guide tube (3).

6. The device according to claim 5, wherein, The guide plate (17) is positioned at the top of the jet circulation reactor (1) between the guide tubes (3), and the guide plate extends radially along the inner wall of the jet circulation reactor (1) and covers the lower portion of the nozzle (8) and / or the upper portion of the guide tube (3) in the axial direction in the upward direction.

7. The device according to any one of the preceding claims, wherein, At least one sub-stream of the feeder (6) for the additional fluid is fed at the top into the jet circulation reactor (1), and the outlet of the sub-stream supplied at the top of the jet circulation reactor (1) is at the outlet level of the liquid circulation (2) and / or at the outlet level of the feed of the liquid to be converted in the jet circulation reactor (1).

8. The device according to any one of the preceding claims, wherein, At least one sub-flow of the feeder (6) for the additional fluid is fed into the jet circulation reactor (1) at the bottom between the bottom ends of the guide tube (3) and into the product extractor (5) located at the bottom of the jet circulation reactor (1).

9. The device according to any one of the preceding claims, wherein, The feeder (6) for the additional fluid comprises a plurality of partial feeders distributed at the height of the jet circulation reactor (1).

10. The device according to claim 9, wherein, The feeder for the additional fluid has: a first set of distributor rings (13) having a first diameter and, in each case, a plurality of outlets for the additional fluid; and a second set of distributor rings (14) having a second diameter and, in each case, a plurality of outlets for the additional fluid, wherein the second diameter is smaller than the first diameter, and each set (13, 14) includes at least one distributor ring.

11. The device according to any one of the preceding claims, wherein, A deflection device for deflecting the flow exiting the guide tube (3) is positioned below the guide tube (3), wherein the deflection device has a first annular groove (15) having a bottom and an outer sidewall, wherein the diameter of the edge of the outer sidewall is greater than the diameter of the envelope surrounding all the guide tubes (3).

12. The device according to claim 11, wherein, The deflection device has a second annular groove (16) having a bottom and an outer wall, wherein the diameter of the inner edge of the second annular groove (16) is greater than the diameter of the inner edge of the first annular groove (15), and the diameter of the edge of the outer wall of the second annular groove (16) is smaller than the diameter of the edge of the outer wall of the first annular groove (15), and wherein the second annular groove (16) is between the bottom end of the guide tube (3) and the first annular groove (15).

13. A method for continuously reacting a liquid with at least one other fluid, the method comprising carrying out the reaction in a jet circulation reactor (1) according to any one of claims 1 to 12.

14. The method according to claim 13, wherein, Oxidation, epoxidation of olefins, hydroformylation, hydroamination, hydroaminomethylation, hydrocyanation, hydrocarboxylation, amination, ammoxidation, oximeation or hydrogenation are carried out in the jet circulation reactor (1), and preferably, compounds having olefinic double bonds are reacted with syngas by hydroformylation to produce aldehydes and / or alcohols.

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