299 results about "Chemical reactor" patented technology

The invention relates to the technical field of intelligent control of chemical reactors, and discloses an intelligent temperature control system for a step-by-step catalytic cracking reactor, which comprises a temperature field modeling module, a sensor configuration module, an index definition module, a control execution module, an analysis and diagnosis module and the like. The temperature field modeling module constructs a standard temperature field distribution model through infrared thermal imaging and generates virtual temperature points; the sensor configuration module is used for arranging a real temperature point and acquiring a temperature gradient and a temperature point missing rate; the index definition module sets a preset temperature index based on the thermodynamic parameters; the control execution module realizes steady state, dynamic response, heat balance and composite regulation and control; and the analysis and diagnosis module carries out fault tracing on the target which does not pass regulation and control and adjusts a strategy. The system further comprises a data acquisition module and a communication interface module, so that data storage and external communication are realized. The method improves the temperature control precision and the system self-adaption capability, and is suitable for the complex temperature control scene of the catalytic cracking reaction.

The invention relates to the technical field of chemical reactors, in particular to a modular chemical reactor. Comprising a middle shell and conical shells fixedly connected with the two ends of the middle shell. The end part of the conical shell is fixedly connected with a flange; the inner walls of the left and right ends of the middle shell are connected with baffle plates; a reaction tube and a central column penetrate through the space between the two baffle plates; the left baffle disc is fixedly connected with the reaction tube and the central column, and the right baffle disc is movably and hermetically connected with the outer wall of the reaction tube, the outer wall of the central column and the inner wall of the middle shell; a left groove is formed in the left portion in the middle shell. A movable groove communicated with the left groove is formed in the right position of the inner wall of the middle shell; the length of the shell pass is changed by adjusting the distance between the two baffle plates, so that the chemical reactor can meet the reaction requirements of different products, and the application range is wide.

An embodiment represents composition of molecules in a feedstock as a combination of individual molecule representations and molecular attribute representations. A representation of chemistry of a chemical reaction of the feedstock in a chemical reactor is then formulated based on the representations. Then, a simulation of the chemical reaction of the feedstock in the reactor is performed using the representations to determine composition of products of the reaction. A first subset of the products are represented as individual molecule represented products, and a second subset of the products are represented as attribute represented products. In turn, the attribute represented products of the second subset are sampled to determine individual molecule representations of the attribute represented products. As a consequence of the sampling, individual molecule representations of the first and second subsets of the products of the chemical reaction of the feedstock in the chemical reactor result.

The utility model relates to the technical field of reaction kettles, and discloses a chemical reaction kettle with a vertical structure, which comprises a kettle body, a kettle cover, a stirring shaft and two stirring components, the kettle cover is fixedly mounted at the top of the kettle body, the stirring shaft is rotatably mounted in the kettle cover, and the two stirring components are fixedly mounted on the stirring shaft; according to the utility model, the plug board can be unlocked by pressing the button to separate the limiting rod from the limiting hole, the movable clamping plate slides to drive the plug board to slide out of the slot, and the movable clamping plate is rotated to be far away from the stirring paddle, so that the stirring paddle can be unlocked, after the stirring paddle is taken down, a new stirring paddle is attached to the mounting groove, and the movable clamping plate is rotated to be attached to the stirring paddle; the button is pressed again, the movable clamping plate slides to enable the inserting plate to be inserted into the inserting groove, then the button is loosened, the limiting rod can enter the limiting hole under pushing of the spring at the moment, the inserting plate and the stirring paddle are locked, the bolt dismounting work is simplified into the mode that the button is pressed and the movable clamping plate is moved, time and labor are saved, and the replacement efficiency can be improved.

The present invention discloses an intelligent temperature control system for an intelligent reactor and its control process. The key technical aspects of the system are: a central processing unit (CPU); a temperature monitoring module connected to the CPU via an I2C interface for acquiring real-time temperatures inside and outside the chemical reactor, thereby transmitting external and internal temperature signals to the CPU; and a temperature regulation module coupled to the CPU via a drive circuit. The system utilizes a small, high-power AC relay connected to a semiconductor refrigeration unit and a heater to maintain a circuit break during heating, preventing instability caused by simultaneous heating or cooling. During signal transmission, the system also incorporates a single-channel output transistor coupler, which, through coupling, achieves electrical isolation and interference resistance, thereby improving control accuracy.

The present invention relates to the field of semiconductor manufacturing technology, and specifically to a single crystal silicon sample etching device, comprising a chemical reactor, a chemical reaction tank provided on one side of the chemical reactor, a fixture provided above the chemical reaction tank, a control mechanism provided on the chemical reactor for controlling the raising and lowering of the fixture, two rotating rods provided on the fixture for circumferential rotation or axial sliding, and a plurality of supports for placing crystals mounted on the outer surfaces of the two rotating rods. The beneficial effects of the present invention are as follows: utilizing the two rotating rods to control a plurality of crystals to simultaneously swing back and forth and slide back and forth, firstly, facilitating the accurate placement or removal of crystals, and secondly, greatly increasing the contact area and frequency between the crystal surface and the chemical etchant, thereby allowing two adjacent crystals to press liquid toward each other, accelerating the etching rate, and also promoting the automatic detachment of small bubbles attached to the crystal surface.

The invention belongs to the field of thermochemical energy storage, and discloses a thermochemical energy storage device based on inductive heating and an operation method thereof, the thermochemical energy storage device comprises a thermochemical reactor, an inductive heating reaction module and an inductive coil; an inner cavity of the thermal chemical reactor is sequentially divided into a preheating section, an inductance heating section and a cooling section from top to bottom, and the inductance heating reaction module is vertically arranged in the inductance heating section; the inductive heating reaction module comprises a plurality of annular cylinders and a steam inlet and outlet pipe, and the annular cylinders are coaxially arranged and sleeved at intervals; a heat exchange working medium channel is formed between every two adjacent annular cylinders; each annular cylinder body comprises a metal inner cylinder and a metal outer cylinder which are coaxial and sleeved at an interval, and an annular material channel is formed between the metal inner cylinder and the metal outer cylinder; the steam inlet and outlet pipes are vertically arranged in the annular material channel and are annularly distributed at intervals; the inductance coil is wound on the outer side of the thermal chemical reactor and is arranged in the area range of the inductance heating section; the rapid and uniform heating requirement in the thermochemical energy storage process is met.

This utility model provides a chemical reactor with waste heat recovery function, including a reactor, a stirring device installed inside the reactor, and a waste heat recovery device installed outside the reactor. The stirring device includes a rotating shaft and multiple sets of stirring rods. The multiple sets of stirring rods are connected to the rotating shaft through a detachable structure. The detachable structure includes an mounting groove equally spaced at the top of the rotating shaft, and a mounting block matching the mounting groove is provided on one side of each set of stirring rods. A limiting plate is rotatably fitted on the outer wall of the top of the rotating shaft. The detachable design of the stirring rods in this utility model improves maintenance convenience: through the cooperation of the mounting groove, mounting block, limiting plate, and disassembly groove, the stirring rods can be quickly disassembled and assembled from the rotating shaft. When it is necessary to replace different types (such as turbine type, paddle type) of stirring rods or to perform maintenance, the disassembly groove can be aligned with the mounting groove by rotating the limiting plate, making it easy to remove or install the stirring rods, reducing the complexity of maintenance operations.

This document describes an electrode for the electrochemical decontamination of a liquid or a liquid-containing mixture. The electrode has a coating designed to promote the electrochemical decomposition of a contaminant. Furthermore, an electrochemical reactor is provided, also designed for the electrochemical decontamination of a liquid or a liquid-containing mixture. The reactor includes a first electrode, which can be operated as an anode and is designed to promote the electrochemical decomposition of a contaminant. The reactor and the electrode are configured such that the liquid or liquid-containing mixture flows past the electrode and comes into contact with at least a portion of its surface.

The invention relates to an improved process for the manufacture of a fluorinated organic compound, wherein the process comprises a fluorination reaction of an organic precursor compound having at least one chlorine substituent and / or at least one double bond, and said organic precursor compound is reacted in liquid phase in HF (hydrogen fluoride) serving as solvent and fluorinating agent in the presence of a fluorinating catalyst, and wherein the fluorination reaction is performed in liquid phase in a SiC block chemical reactor, and wherein the reaction mixture is withdrawn from SiC block chemical reactor, and wherein the process comprises optionally isolating and / or purifying the targeted fluorinated organic compound.

The utility model relates to the technical field of chemical reaction vessels, in particular to a constant-temperature heating reaction bottle. The constant-temperature heating reaction bottle comprises an outer bottle body and an inner bottle body inserted into the outer bottle body, a temperature control pipe is installed in the middle of the outer bottle body, a concave part matched with the temperature control pipe in a clamped mode is integrally formed in the middle of the inner bottle body, an inner glass coil pipe is arranged in the temperature control pipe, an outer glass coil pipe is arranged in an inner cavity of the outer bottle body, and the inner glass coil pipe is connected with the outer bottle body in a clamped mode. The liquid outlet end of the outer glass coil pipe is communicated with the liquid inlet end of the inner glass coil pipe, and a heating assembly is installed in the temperature control pipe. The constant-temperature heating reaction bottle provided by the utility model has the advantage of simple structure.

There is described a filtration apparatus for reducing contaminants in a feed stream, the apparatus comprising (a) a vessel; and (b) a plurality of filtration members arranged within the vessel. Filtration members (b) each comprise (i) at least 10 channels extending through the filtration member from a first face of the filtration member to a second face of the filtration member, and (ii) a mean average channel diameter of up to 2,500 um. At least 60% of filtration members (b), by total volume of filtration members (b), have an external diameter that is within 10% of the combined mean average external diameter of filtration members (b). Filtration members (b) comprise a first fraction of filtration members and a second fraction of filtration members. The filtration members of the first fraction each comprise a larger mean average channel diameter than the filtration members of the second fraction.

This invention relates to a catalytically active or activatable mixture for use in a chemical reactor, comprising: (i) a shaped catalyst body containing a catalytically active or activatable material, and (ii) a conductor, wherein the shaped catalyst body has a characteristic diameter d. cat With the diameter d of these conductors con The ratio between (d) cat / d con The value is in the range of 1.5 to 3, and these shaped catalyst bodies have a characteristic diameter d in the range of 1 mm to 50 mm. cat Furthermore, the diameter of the unformed conductor is the average diameter determined by sieving according to DIN 66165, and the characteristic diameters of the formed catalyst body and the formed conductor are defined as the diameter d of the circumscribed sphere surrounding the formed body. css The sphericity Ψ of the convex hull of the molded body ch The product of the two. The invention further relates to a method for preparing the catalytically active or activatable mixture, the use of the catalytically active or activatable mixture in a chemical reactor as part of or as a directly electrically heated catalyst bed, and a chemical reactor for carrying out a chemical reaction, the chemical reactor containing or comprising the catalytically active or activatable mixture. The invention further relates to a method for carrying out a chemical reaction catalyzed by a shaped catalyst body of the catalytically active or activatable mixture.

The invention discloses a vortex channel hydrogen storage reactor of a fluid streaming gradual change hydrogen storage tank unit, and belongs to the field of chemical reactor design. The whole reactor is a cylindrical shell, a heat exchange fluid inlet is formed in the center of the upper side of the shell, a hydrogen inlet is formed in a left end shell cover, and a heat exchange fluid outlet is formed in a right end shell cover; the heat exchange fluid channel is in a vortex shape, the multiple hydrogen storage tank units are sequentially arranged in the center of a flow channel of the vortex channel, and the diameter of the hydrogen storage tank is evenly reduced from the shell to the center position. Hydrogen enters the bed layer through a hydrogen pipe in the hydrogen storage tank and reacts with the metal hydride; meanwhile, the heat exchange fluid in the vortex channel flows around the hydrogen storage tank unit in the axial direction for heat exchange and then flows out through an outlet; the hydrogen storage tank has the advantages of excellent heat and mass transfer performance, uniform bed temperature of the hydrogen storage tank, small pressure-bearing stress of the tank body, synchronous reaction process of each hydrogen storage tank, high reliability and long service life, and is suitable for hydrogenation / dehydrogenation reaction of metal hydride with high hydrogen storage capacity requirement and larger reaction heat effect.

Chemical plant for the treatment of H2S comprising: a first unit (A) for decontaminating a gaseous process / feed stream contaminated by H2S (A1) and obtaining a first gaseous waste stream (A2) containing the separated H2S and a gaseous decontaminated process / feed stream (A3), a second unit (B) for recovering elemental sulphur from H2S and obtaining a second liquid stream of elemental sulphur (B3) and a final gaseous stream containing H2O (B2), a third unit for recovering H2 from H2S, wherein said third unit sequentially comprises a second line (2) in fluid communication with the first line (1), which is detached from said first line (1), to convey at least in part said first gaseous waste stream (A2), a chemical reactor (R) for heating and decomposing at high temperature the H2S according to the endothermic reaction (I), resulting in a gaseous H2-enriched stream, at least one heat exchanger (E) to cool said H2-enriched stream and to condense the elemental sulphur, a first separator (S1) for separating said condensed elemental sulphur from said H2-enriched stream, forming a first liquid stream of elemental sulphur, a fifth line (5) for conveying said gaseous H2-enriched stream exiting said first separator (S1) a sixth line (6) for conveying said first liquid stream leaving said first separator (S1), and wherein said third unit forms a loop circuit with a portion of said first line (1) or with a portion of said first line (1) and said first unit (A).

The present invention relates to a fixed bed electrochemical reactor comprising at least a first volume electrode, preferably based on biobased carbon, and a separator configured to separate the first volume electrode from a second surface or volume electrode and to ensure compression at least on said first volume electrode, to the use thereof in various applications such as removing pollutants from a liquid medium comprising at least one organic pollutant, disinfecting water by electrochlorination, water electrolysis, seawater desalination, energy storage (e.g. as redox flow battery or supercapacitor), or the generation of electric power from osmotic power, and to a method for removing pollutants from a liquid medium comprising at least one organic pollutant used in said reactor.

The invention relates to a green synthesis method of 2, 4-dicumyl phenol. The invention belongs to the field of synthesis of medical intermediates. The invention aims to solve the technical problems that the raw materials are non-renewable, thermal runaway is easily caused by high-temperature reaction, the energy consumption is high and the content of 3-substituted by-products is relatively high in the existing synthesis method of 2, 4-dicumyl phenol. The method comprises the following steps: adding vanillin into an electrolyte, and carrying out electrochemical deoxidation in a proton exchange membrane electrolytic cell by taking a titanium-based DSA electrode as an anode to obtain o-methoxyphenol; according to the method, o-methoxyphenol and cumene are subjected to a free radical coupling reaction in a flowing electrochemical reactor in the presence of a homogeneous electron transfer catalyst by taking a titanium-based DSA electrode as an anode, and high-purity 2, 4-dicumyl phenol is obtained through extraction and distillation after the reaction is finished. According to the method, the raw materials are 100% renewable, strong acid and high temperature are avoided, hazardous waste emission is avoided, few trisubstituted by-products are generated, and industrial production can be carried out.

The invention relates to the technical field of solid oxide electrolytic cells, and discloses an electrochemical reactor, application thereof, a method for preparing ethylene / carbon monoxide through methane / carbon dioxide electrochemical reforming and a catalyst. Wherein the electrochemical reactor comprises an anode, a cathode and an electrolyte layer arranged between the anode and the cathode, the anode comprises an anode carrier and an anode catalyst attached to the anode carrier, and the cathode comprises a cathode carrier and a cathode catalyst attached to the cathode carrier; the main components of the anode carrier and the cathode carrier are yttria-stabilized zirconium oxide, and the micro-channel structure is characterized in that the anode carrier and the cathode carrier are respectively provided with a micro-channel structure. The electrochemical reactor has the effects of improving Faraday efficiency, methane conversion rate and C2 and ethylene selectivity and reducing over-oxidation products CO and CO2 generated by an anode in a method for preparing ethylene / carbon monoxide through methane / carbon dioxide electrochemical reforming.

This invention discloses a chemical reactor experimental teaching aid, including a support base (1), a reactor (2) positioned above the support base (1) in the middle; a fixing device (11) on both sides of the support base (1) for fixing the reactor (2); a driving device (3) for driving a stirring and cleaning integrated device (5); the stirring and cleaning integrated device (5) includes a rotating shaft (51) connected to the driving shaft of the driving device (3), a cleaning device (54) connected to the bottom of the rotating shaft (51), and a supporting sleeve (53) provided outside the rotating shaft (51). The supporting sleeve (53) has an inverted T-shaped structure, and the bottom of the supporting sleeve (53) has a groove structure to cover and wrap the cleaning device (54); the top of the supporting sleeve (53) is provided with a buckle (14) for filling the gap between the driving device (3) and the top of the supporting sleeve (53). This invention realizes the application of teaching experimental teaching aids in different scenarios by setting a stirring and cleaning integrated device in the reactor, so that the cleaning and stirring operations of the experimental teaching aids can be quickly realized through the same device.

A process for separating solids and oil from water without requiring waste haul-off comprising six phases. In the first phase, a stream of raw saltwater is treated with desired chemistry and a beneficial reuse chemical effluent. In the second phase and third phase, the water undergoes oil separation, and the water is stored to facilitate phase changes. In the fourth phase, the saltwater is treated with desired chemistries and a beneficial reuse chemical effluent. In the fifth phase, the water is stored and agitated. In the sixth phase, the water passes through a mechanical filter—or similar unit—the stream then directed to a chemical reactor. Desired chemistries and solids removed from the filter are added to the reactor. The reactor outputs a beneficial reuse chemical effluent which can be recycled to Phase 1 and Phase 4—and prefilter Phase 6—of the system.

The invention relates to a thin-film chemical reactor capable of operating in a confined environment, the reactor comprising (i) a reaction vessel with a vertical axis; (ii) a feed tube; (iii) an upper portion comprising two openings, one of which receives the tube; (iv) a connection means linking the upper portion and the vessel and comprising a stationary part and a moving part; (v) a drive means for rotating the vessel; (vi) means for sealing the openings; wherein the tube is parallel to or aligned with the vertical axis and extends through the connection means into the vessel.

The application provides a phosphogypsum residue field water treatment process based on a membrane coupling chemical reactor, relates to the technical field of wastewater resource treatment, and can selectively perform gradient precipitation on fluorine, phosphorus, nitrogen and sulfur, cooperates with a membrane filter for targeted design, realizes a membrane separation process resistant to high-concentration suspended solids, and can make the membrane flux attenuation rate less than 5% / day. The application can effectively separate fluorine, phosphorus and nitrogen from water to form mud with resource value, the value of the resource product per ton of water treatment is higher than the treatment cost, 80% of the recovered water meets the industrial recycling standard, and the phosphogypsum residue field water can be advantageously used for quasi-zero emission and deep high-value resource utilization.

This utility model discloses a double-spiral stirring shaft chemical reactor, relating to the field of chemical equipment. The double-spiral stirring shaft chemical reactor includes a reaction vessel, on which a cover plate is detachably connected by fixing bolts. It also includes symmetrically arranged feed cylinders located inside the reaction vessel and fixedly connected to the cover plate. This utility model utilizes a variable diameter structure (larger at the bottom, smaller at the top) for the feed cylinder and spiral blades. As the material is conveyed upwards, its flow velocity increases, resulting in high-speed ejection from the discharge pipe, forming strong turbulence that breaks up material agglomerates. Simultaneously, the spiral blades, in conjunction with the feed cylinder, circulate the material within the reaction vessel. Compared to traditional stirring methods, this significantly shortens the time required for uniform mixing. Furthermore, a booster pump releases bubbles at the bottom of the reaction vessel via a jet nozzle. The disturbance generated by the rising and bursting of these bubbles, combined with the material circulation driven by the spiral blades, enhances the mixing effect from multiple directions and scales, further improving reaction efficiency.

The present invention relates to the technical field of chlorination reaction equipment, and discloses a chemical reactor for chlorination with a multi-layer temperature controllable function. The chemical reactor for chlorination with a multi-layer temperature controllable function includes a reactor, a driving motor is installed on the reactor, and a through hole is opened on the reactor. The output shaft of the driving motor passes through the through hole, and a first reciprocating screw is installed on the output shaft. A moving block is slidably installed on the first reciprocating screw, and a temperature sensor is installed on the moving block. A plurality of heaters are installed on the inner wall of the reactor. The heater and the driving motor are started, and the driving motor drives the moving block to move back and forth longitudinally through the first reciprocating screw, so that the temperature sensor can move synchronously with the moving block, so that the temperature sensor can monitor the temperature in the reactor at multiple levels, and is conducive to controlling the heating temperature of the heater at the corresponding layer depth according to feedback from the temperature sensor.

A chemical reactor is described that includes an inlet, a filter, and a separation or treatment element. The inlet has an inlet depth. The filter comprises: a first conduit having a depth d height and one or more support columns; a second conduit having a second conduit depth d low and a filter column; and a transition region including a step from d high to d low and a transition post spanning the transition region.

The utility model relates to the technical field of reaction kettles, and discloses an environment-friendly chemical reaction kettle which comprises a bracket, and a lower kettle body for accommodating reactants is mounted on the bracket; a top cover is arranged at the top opening of the lower kettle body, and the lower kettle body and the top cover jointly form a sealed cavity for chemical reaction; a first stirring rod and a plurality of groups of second stirring rods are arranged in the lower kettle body; according to the environment-friendly chemical reaction kettle, a multi-stirring-rod structure is adopted, the first stirring rod, the second stirring rod and the U-shaped plate work cooperatively, multi-direction stirring of materials in the kettle is achieved, it is ensured that the materials can be fully and evenly stirred, the stirring speed is high, and the stirring effect is good. Meanwhile, the material scraping part is matched for use, so that materials attached to the side wall of the lower kettle body can be effectively scraped off, the materials are fully mixed, and the stirring effect is improved.

A desalination unit processes saltwater feedstock (e.g., seawater) to generate freshwater (i.e., water suitable for human consumption, irrigation, or industrial uses) and a high-salt brine stream. An optional pretreatment unit removes contaminants from the saltwater feedstock before desalination. An electrochemical reactor converts the brine stream into a reduced-salt stream having a salt content lower than the saltwater feedstock by converting salt molecules contained in the brine stream into acid molecules contained in an acid product stream and base molecules contained in a base product stream. A mixing device combines the reduced-salt stream with the saltwater feedstock before the resulting mixture solution is delivered to the desalination unit for desalination. The base product stream leaving the electrochemical reactor may be used for ocean alkalinity enhancement (OAE), and the acid product stream may be used to reduce energy costs associated with crushing / grinding alkaline rock in an enhanced ocean weathering (EOW) process.

The application discloses a SiC reactor for cyclohexanone aminooxidation and a design method thereof, and relates to the technical field of chemical reactors. The SiC reactor comprises a reactor shell, a plurality of reaction channels, a plurality of composite plates, and a plurality of reaction channels. The axis direction of the reaction channel is parallel to the axis direction of the reactor shell. The plurality of composite plates are arranged in the plurality of reaction channels. The flat plate and the corrugated plate made of silicon carbide are arranged in the axial direction of the reaction channel and matched with the rhombic through-hole structure. The fluid in the reaction channel can be disturbed, the radial diffusion effect of the fluid is improved, and the effective residence time of the fluid is prolonged. Based on the excellent heat conduction performance of silicon carbide and the plate combination structure, the heat exchange between the wall surface and the fluid is strengthened, the temperature field distribution in the channel is optimized, the mass transfer and heat transfer conditions of the material are improved, and the generation effect of cyclohexanone oxime is improved.

This invention discloses a nitrogen-purged closed feeding system based on a chemical reactor, relating to the field of closed feeding technology for reactors. In this invention, a pusher cylinder output is connected to a pusher piston, a storage tank is connected to the top of a vertical guide tube, and a receiving cylinder is located inside the vertical guide tube. Multiple receiving chambers are arrayed along the axial direction inside the receiving cylinder, and several receiving ports and discharge ports are opened on the circumferential side of the receiving cylinder. The receiving chambers are connected to their corresponding receiving ports and discharge ports. The receiving ports are positioned close to the top of their respective receiving chambers, and the discharge ports are positioned close to the bottom of their respective receiving chambers and penetrate the receiving cylinder. A nitrogen purging pipe assembly connects a horizontal guide tube to the vertical guide tube, and the pusher piston is slidably positioned inside the horizontal guide tube. This invention not only effectively reduces the possibility of raw materials coming into contact with air during the feeding process but also achieves quantitative feeding of the reaction raw materials, thereby facilitating precise control of the raw material feeding process.