146 results about "Chemical reactor" patented technology

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.

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.

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.

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.

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.

The invention pertains to a device for determination of a catalyst state in a chemical reactor and to a method for detecting a catalyst state under in situ reaction conditions. A reactor is provided with a solid catalyst provided in a reactor chamber. A fluid sample is taken from the reactor chamber and is transferred to a sample chamber. The temperature at the extraction site of the sample in the reactor chamber is determined and the temperature of the sample chamber is adjusted to the same temperature. A small amount of the catalyst provided in reactor chamber is provided in sample chamber and is contacted with the sample flow. Spectroscopic information is then obtained on the catalyst provided in sample cell, e.g. by an IR spectrometer.

An electrochemical reactor, which may be a half-cell of a rechargeable battery, comprises a liquid electrolyte which is pumped through the half-cell and has an electrochemical system in which a solid is deposited at an electrode while electric current is flowing. The liquid comprises a high molecular weight polymer or a viscoelastic surfactant enabling elastic turbulence to occur and the half-cell is configured to compel through flow to make changes in direction, so that elastic turbulence occurs, enhancing mass transport through the liquid and reducing overpotential at the electrode, which enhances uniformity of deposited solid and inhibits parasitic reactions.

Disclosed is a method for the catalytic reduction of CO and / or CO2, the method comprising steps of (i) providing an electrolytic cell containing at least one reaction chamber that has at least one anode and at least one cathode and at least one electrolyte between the anode and the cathode, wherein the at least one cathode comprises at least one catalyst comprising at least one carbide of one or more transition metal selected from the group consisting of Nb, W, Mo, V, Ti, Hf, Ta, Cr, Zr, Sc and Y, the carbide having a catalytic activity for the reduction of CO and / or CO2; (ii) providing CO and / or CO2 in the electrolytic cell; and (iii) applying electrical potential to the electrolytic cell so that the CO and / or CO2 undergoes a reduction reaction at the cathode. Also disclosed are electrolytic cells and chemical reactors containing the disclosed transition metal carbide catalysts.

The application belongs to the technical field of material welding, and particularly relates to a negative pressure laser brazing method for single-sided sealing of a ceramic tube / metal plate. Through the synergistic regulation and design among the surface micro-texture, negative pressure environment and laser heat field regulation during laser brazing, high-reliability connection is realized, the temperature gradient of the connection interface is effectively reduced, and through accurate regulation of parameters, the interface wettability, thermal stress and uniformity of the structure are synergistically improved. In addition, the ceramic tube / metal plate composite obtained by the laser brazing method is suitable for high-temperature and high-pressure environments, and can be applied to the manufacturing of sealing structures of nuclear power equipment, chemical reactors and solid oxide fuel cells.

Herein discussed is an electrochemical reactor comprising a first electrode, wherein the first electrode is liquid when the reactor is in operation; a second electrode having a metallic phase and a ceramic phase, wherein the metallic phase is electronically conductive and wherein the ceramic phase is ionically conductive; and a membrane, wherein the membrane is positioned between the first and second electrodes and is in contact with the first and second electrodes, wherein the membrane is mixed conducting. Also discussed herein is a method of producing hydrogen or carbon monoxide comprising: (a) providing an electrochemical reactor having an anode, a cathode, and a membrane between the anode and the cathode, wherein the anode is liquid when the reactor is in operation and wherein the membrane is mixed conducting; (b) introducing a feedstock to the anode; (c) introducing a stream to the cathode, wherein the stream comprises water or carbon dioxide.

The invention relates to a solar-driven spiral flow channel heat matching membrane separation gas reactor, which relates to the technical field of solar thermochemistry, and comprises a solar heat collector used for collecting solar energy and converting the solar energy into heat energy, and a reactor provided with a feeding end and a discharging end, and a spiral flow channel is arranged in the reactor, the spiral flow channel is composed of a reactor shell and a spiral baffle, at least one separation membrane pipe is integrated on the spiral baffle, and the solar heat collector is arranged to provide non-uniform heating for the reactor shell, so that the spiral flow channel forms a temperature gradient in the axial direction; on the basis of a traditional straight pipe type reactor, a flow channel is redesigned, a separation membrane pipe is integrated, and a paraboloid groove type heat collector capable of achieving heat matching benefits with the separation membrane pipe is further designed, so that the conversion rate of hydrogen production reaction is increased, the requirement of the reaction for the temperature is reduced, and the energy consumption is reduced. And the adaptability of the solar thermal chemical reactor to the solar heat collector is improved.

The utility model discloses tetrabutylammonium perchlorate purification equipment and belongs to the technical field of chemical purification equipment. The tetrabutylammonium perchlorate purification equipment comprises a pretreatment unit, a chemical reactor, a crystallizer, filtering separation equipment, an adsorption device and a control system, the pretreatment unit comprises a multi-stage filtering system, a raw material feeding metering pump and an automatic acid-base adding valve; the chemical reactor adopts a tubular reactor and is provided with an inlet and an outlet, and a heat exchange device is arranged outside the tubular reactor; the rectifying tower adopts a packed tower and is provided with a packing layer and a liquid distributor; the crystallizer comprises a crystallization tank, a jacket is arranged on the wall of the crystallization tank, and a stirrer, an elutriation column and a temperature control system are arranged in the crystallization tank; the filtering and separating equipment is provided with a filtering medium and adopts a rotary vacuum filter; the adsorption device is provided with a sensor array, the adsorption efficiency and the saturation degree of an adsorption material can be monitored in real time, and regeneration or program replacement can be automatically triggered through a control system.

To extend the lifespan of electrochemical reactors. [Solution] The electrochemical reaction apparatus comprises an electrochemical reaction structure having a cathode, an anode, a diaphragm having a first surface facing the cathode and a second surface facing the anode, a cathode channel facing the cathode, and an anode channel facing the anode; a first channel through which a first fluid containing the substance to be reduced flows, supplied to the cathode channel; a second channel through which a second fluid containing water flows, supplied to the anode channel; a third channel through which a third fluid containing reduction products flows, discharged from the cathode channel; and a fourth channel through which a fourth fluid containing water and oxygen flows, discharged from the anode channel. The diaphragm has a concentration gradient in which the concentration of chemical species that decompose, capture, or inactivate reactive oxygen species decreases from the second surface to the first surface.

This invention belongs to the field of organic electrochemical synthesis and microchemical technology, and relates to a method for preparing 2-chlorobenzoic acid by electrochemical reduction debromination in a continuous flow microreactor. The method includes: dissolving 3-bromo-2-chlorobenzoic acid, a supporting electrolyte, and a proton source in a polar aprotic solvent to prepare a cathode reaction solution; continuously feeding this solution into the cathode channel of a microchannel electrochemical reactor using a metering pump, while simultaneously pumping the anolyte into the anode channel; connecting a DC power supply and conducting a selective electrochemical debromination reaction under set current density, reaction temperature, and material residence time conditions; and obtaining high-purity 2-chlorobenzoic acid from the outlet material through gas-liquid separation, neutralization, extraction, and recrystallization. This invention combines a continuous flow microreactor with electrochemical debromination technology, significantly enhancing mass and heat transfer, resulting in a shorter reaction time, higher conversion and yield, and the addition of a reducing agent, ease of scale-up, and intrinsic safety, demonstrating promising industrial application prospects.

The utility model discloses a device for plating anticorrosive paint on the inner wall of a chemical reaction kettle, which belongs to the technical field of paint plating and comprises a bottom plate and a vertical plate. Two sliding grooves are transversely and symmetrically formed in the top face of the bottom plate, sliding blocks are slidably installed in the two sliding grooves, a push plate is fixedly installed between the two sliding blocks, a first hydraulic cylinder is fixedly installed on the top face of the bottom plate, the telescopic end of the first hydraulic cylinder is fixedly connected with the push plate, and a rotating rod is rotatably installed on the side, close to the rotating disc, of the push plate. A mounting disc is fixedly mounted at the tail end of the rotating rod; two strip-shaped grooves are symmetrically formed in the top face of the bottom plate, electric sliding blocks are slidably installed in the strip-shaped grooves, a sliding plate is fixedly installed between the top faces of the electric sliding blocks, two second hydraulic cylinders are symmetrically and fixedly installed on the top face of the sliding plate, and two lifting rollers are installed at the telescopic ends of the two second hydraulic cylinders. Compared with the prior art, the device can be used for automatically disassembling and assembling the reaction kettle and can be used for clamping the reaction kettles with different specifications.

This utility model relates to the technical field of reactor cleaning equipment, specifically disclosing a high-pressure cleaning device with magnetic coupling drive. It includes a sealed cavity composed of a water drum, a top cover, a top flange, a cylinder, a bottom flange, and a bottom cover. One leg of the water drum is welded to a water drum connecting plate, and the water drum connecting plate is welded to the side of the top cover. Another leg of the water drum, through which a high-pressure water hose passes, is welded to the end face of the top cover. The top flange and bottom flange are welded to both ends of the cylinder, respectively. The top cover is bolted to the top flange, and the bottom cover is bolted to the bottom flange. This high-pressure cleaning device has a completely sealed structure, allowing toxic, harmful, flammable, and explosive gases inside the chemical reactor to be cleaned to be isolated within the sealed cavity of the cleaning device during the cleaning process, preventing gas leakage.

The invention discloses a spiral array tube-shell type hydrogen storage reactor with fluid flowing around a hydrogen storage tank, 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 multiple hydrogen storage tank units are arranged in a spiral array mode and are arranged in a gradually-changing-spacing or gradually-changing-diameter mode, and the hydrogen storage tank array serves as a heat exchange channel wall face. 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 spiral 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 and small tank body stress; different hydrogen storage tanks are synchronous in reaction process and high in reliability; the hydrogen storage tank array serves as a heat exchange channel wall surface, and the mass of the reactor is remarkably reduced. And the requirements of hydrogenation / dehydrogenation reaction with high hydrogen storage capacity requirement and large reaction heat effect can be met.

The invention discloses a device and a method for electrochemical synthesis of hydrogen peroxide, and belongs to the technical field of electrochemical synthesis. Comprising a plastic shell and a porous conductive electrochemical reactor shell arranged in the plastic shell. A circular cathode electrode and a hollow anode electrode are arranged in the core reaction tank, are loaded with a catalyst and are separated through a non-conductive porous diaphragm, so that short circuit is effectively prevented, and the structure is compact and small. Electrolyte flows into the hollow anode through the inlet on the cover plate, enters the reaction area through the porous wall, and finally flows out from the bottom outlet. Weak acid, neutral or weak base solution of a water carrier and even mineral water can be used as electrolyte, and hydrogen peroxide is generated through efficient reduction at the cathode after electrification. The device has the remarkable advantages that the device is integrated in structure, high in safety and simple and convenient to operate, can be directly integrated in household appliances, realizes on-site, on-demand and green synthesis of hydrogen peroxide, meets various household application requirements of disinfection, bleaching and the like, and has very high practicability and economical efficiency.

A chemical reactor implemented on a substrate is described. The chemical reactor includes at least one channel for transporting a liquid and / or gas during operation of the chemical reactor. The channel comprises pillar structures perpendicular to the bottom of the channel having a transverse section parallel to the bottom that is substantially rectangular and wherein the pillar structures are provided with a porous layer of substantially homogeneous thickness applied via electrochemical anodising.

The invention discloses a waste heat recovery type CO2 energy storage system based on a multistage reheating turbine chemical reaction kettle, and the system comprises a grading adaptation module which adopts the composite design of a time-sharing and partition heat storage tank and a dynamic double-medium heat exchange unit, and is used for providing a reliable heat source; the dual-cooperative control module is provided with a CO2 thermocline storage tank for storing CO2 with different densities; the self-adaptive adjusting module adopts a three-stage reheating turbine structure and is used for adjusting the power generation efficiency; the economic dispatching module is used for constructing a multi-dimensional data acquisition network and predicting the waste heat intensity, the electricity price trend and the CO2 energy storage system load in the next 24 hours; the time-sharing power supply optimization module is used for constructing a three-source complementary power supply network based on a distributed photovoltaic system, a power grid access system and a waste heat energy compensation system; and the intelligent self-healing collaboration module is used for constructing an intelligent self-healing system based on 192 paths of sensor networks and edge computing. The system can improve the waste heat utilization rate and guarantee stable power generation and power supply.

This utility model discloses an auxiliary lifting device for installing a chemical reaction vessel, including an auxiliary lifting cage mechanism. The auxiliary lifting cage mechanism includes several lifting strap structures forming a cage-like structure. A base support structure, supported at the bottom of the vessel body, is detachably installed at the lower end of the lifting strap structures. The base support structure includes an annular support base, which includes several locking rod units that are detachably connected in sequence. The lower end of the lifting strap structures is suspended from the locking rod units. The base support structure also includes an upper support base and a lower support base, detachably installed at the top and bottom of the annular support base. The locking rod units are detachably and fixedly installed between the upper and lower support bases. This structure allows for easy disassembly of the lifting structure after the vessel body is lifted onto the mounting holes on the worktable. During the lifting process, the entire vessel is suspended within the cage-like lifting structure, resulting in higher stability and minimal swaying of the entire device during suspension, thus increasing the safety of the suspension.

This suppresses the performance degradation of the electrochemical reactor caused by startup and shutdown operations. [Solution] The method of operating the electrochemical reactor involves controlling the electrolysis unit so that, in each of the startup, operation, and shutdown processes, the first time-averaged pressure at a first position in the cathode chamber that is closer to the inlet than the outlet of the cathode chamber is equal to or greater than the second time-averaged pressure at a second position in the anode chamber that is opposite the first position across the diaphragm, and the third time-averaged pressure at a third position in the cathode chamber that is closer to the outlet than the inlet is equal to or greater than the fourth time-averaged pressure at a fourth position in the anode chamber that is opposite the third position across the diaphragm.