295 results about "Phase reaction" patented technology

The invention relates to the technical field of electrochemical carbon dioxide reduction reaction catalysts, and discloses a preparation method and application of a mixed ionomer modified cuprous oxide catalyst, a hydrophobic ionomer and a proton exchange ionomer are used for performing surface modification on cuprous oxide powder, an effective hydrophobic structure is constructed on a Cu2O active site in a physical coating form, and the cuprous oxide modified cuprous oxide catalyst is prepared. A stable and controllable hydrophobic gas-liquid-solid three-phase reaction micro-interface is formed, so that the problems of low C-2 Faraday efficiency, poor selectivity, serious competitive hydrogen evolution reaction, carbonate deposition and the like in the existing process of preparing a C-2 product by electrocatalytic carbon dioxide reduction are solved, and the industrial current density (gt; and the method has the advantages of simple process flow, low price, high product selectivity and the like.

The invention belongs to the technical field of electrocatalytic materials, and relates to a two-phase bimetallic carbide heterostructure electrocatalyst and a preparation method and application thereof. The composition of the two-phase bimetallic carbide heterostructure electrocatalyst is WMoC2 / WVC2, and preferably, the mass percent of the WMoC2 is 40%-80%, and the mass percent of the WVC2 is 20%-60%. According to the invention, the bimetallic heterostructure WMoC2 / WVC2 electro-catalytic hydrogen evolution material is prepared through a step-by-step hydrothermal method and a solid-phase reaction method. The preparation method is green and pollution-free, the raw material cost is low, and the electrocatalytic activity in an alkaline environment is good.

The invention discloses a jet type micro-droplet generation device and a micro-droplet generation method thereof, and belongs to the technical field of liquid-liquid heterogeneous / homogeneous reaction devices. The device comprises an injection pipe, the injection pipe is used for conveying a first liquid phase, the interior of the injection pipe is of a cavity structure, the injection pipe comprises a feeding section, a mixing section, a diffusion section and a feeding pipe, the feeding section, the mixing section and the diffusion section are sequentially communicated and coaxially arranged, the feeding pipe is used for conveying a second liquid phase, and the feeding pipe penetrates through the side wall of the feeding section and extends into an inner cavity of the injection pipe; a discharging opening of the feeding pipe is formed in the mixing section, and an annular flowing space is formed by the outer wall of the feeding pipe and the inner wall of the mixing section. The feeding pipe extends into the mixing section to form an annular flowing space, and a second liquid phase is dispersed into small liquid drops by fully utilizing the annular space and a strong shear flow field in the mixing section. The method is suitable for a liquid-liquid heterogeneous / homogeneous system, including a liquid-liquid heterogeneous / homogeneous reaction crystallization system generated by solid particles.

The invention discloses an experimental system and method for accelerating and promoting a gas-liquid-solid three-phase reaction in a multi-stage manner, and relates to the technical field of reaction equipment and carbon emission reduction. The experiment system comprises: a reaction kettle provided with a visual window and an atomization device mounting groove; the floating type piezoelectric ceramic atomization device is embedded in the atomization device mounting groove; the gas injection device comprises a gas hole distribution pipe and a gas injection pump connected with the gas hole distribution pipe; uniformly distributed micropores are formed in the pore distribution pipe; the magnetic stirring device comprises a magnetic driving base, a rotating speed controller and a magnetic stirrer arranged in the reaction kettle; the magnetic stirrer is arranged above the air hole distribution pipe; the bracket net is arranged on one side, deviating from the air hole distribution pipe, of the magnetic stirrer; and the temperature control device comprises a constant-temperature bath and a temperature controller for controlling the temperature of the constant-temperature bath. The experimental system is compact in structural design, modularized, simple and convenient to operate, capable of efficiently accelerating the gas-liquid-solid three-phase reaction and suitable for various experimental studies.

The utility model discloses a gas, liquid and solid three-phase reactor for ammonia distillation crystallization, the gas, liquid and solid three-phase reactor is of a tower structure, at least one horizontally arranged transverse baffle is arranged in the reactor at intervals from bottom to top so as to divide the reactor into a plurality of reaction chambers, the transverse baffle is provided with a shaft hole, and the shaft hole is communicated with the transverse baffle. Each reaction chamber is provided with a vertical longitudinal baffle close to the inner wall, and the stirring shaft of each reaction chamber is provided with at least one layer of stirring paddle. A gas rising hole can be formed in the transverse baffle and is matched with the shaft hole, so that mass and heat transfer of gas and liquid in the reactor is more sufficient. The reactor provided by the utility model can effectively control the decomplexing crystallization process, fulfills the aims of fully recovering ammonia and controlling crystal morphology, particle size distribution, tap density and the like, and can ensure that the reaction can be continuously and stably operated for a long time.

The invention provides a system and method for preparing carbonic ester, and the system comprises a pre-reactor which is used for the pre-reaction of carbonic ester and alcohol; the suspension type reaction rectifying tower comprises a rectifying section, a reaction section and a stripping section and is used for continuously reacting the pre-reacted material in the reaction section after rectifying the pre-reacted material through the rectifying section, and the heterogeneous solid catalyst reacts in the reaction section in a suspension manner; the suspended reactive distillation tower is provided with a gas ascending pipeline, and the gas ascending pipeline is communicated with a gas outlet in the top of the stripping section and a gas phase space in the top of the reaction section and is used for separating gas phase ascending of the stripping section. The system disclosed by the invention is simple in structure, effectively solves the problems of complex loading and unloading of a catalyst, damage of the catalyst and large discharge amount of three wastes in existing heterogeneous reactive distillation, and can be applied to industrial production; the method is especially suitable for production of chain carbonate or linear carbonate generated by esterification reaction of cyclic carbonate and alcohol.

The invention relates to the technical field of sodium silicate production, and particularly discloses a method for preparing sodium silicate by dissolving fluorine-containing silicon dioxide with alkali lye, which comprises the following steps: step 1, adding fluorine-containing silicon dioxide, sodium carbonate and water into a reaction kettle with a stirrer and a heating device to obtain a mixed material; 2, fully and uniformly stirring the mixed material obtained in the step 1, heating the mixed material by using a reaction kettle, and controlling the reaction temperature and the reaction time for reaction; and 3, filtering and separating the reaction product obtained in the step 2 to obtain a sodium fluoride filter cake and a sodium silicate solution. Sodium carbonate and sodium bicarbonate are used for dissolving silicon dioxide in a liquid phase reaction to prepare sodium silicate, the process is green and environment-friendly, sodium carbonate in chemical production can be effectively utilized, energy is saved, consumption is reduced, and the environment is protected. The technical problems that in the prior art, the temperature is high in the reaction process, a large amount of heat needs to be consumed, and energy consumption is high are solved.

The invention belongs to the technical field of fluorine chemical industry, and particularly relates to a continuous production process of heptafluoroisobutyryl fluoride. The process is carried out in a tubular reactor, the tubular reactor is divided into a first preheating section, a second reaction section and a third reaction section, a fluorinated molecular sieve catalyst is filled in the second reaction section and the third reaction section, each reaction section is respectively heated to a corresponding preset temperature, carbonyl fluoride and hexafluoropropylene which are mixed and preheated are introduced into the tubular reactor, and a fluorinated molecular sieve catalyst is introduced into the tubular reactor. Enabling the gas to sequentially flow through each section of the tubular reactor, contacting and reacting with the fluorinated molecular sieve catalyst in the second reaction section and the third reaction section, and condensing the gas discharged from the outlet end of the tubular reactor to obtain a heptafluoroisobutyryl fluoride product. According to the process, carbonyl fluoride and hexafluoropropylene are used as gas-phase reaction raw materials, and heptafluoroisobutyryl fluoride is synthesized through a one-step continuous flow rapid reaction. The reaction route is short, the reaction conversion rate and selectivity are high, and industrial large-scale production is easy to realize.

The present invention relates to the technical field of tert-butyl hydroperoxide, and discloses a tert-butyl hydroperoxide processing homogeneous reaction kettle, the tert-butyl hydroperoxide processing homogeneous reaction kettle comprises a homogeneous reaction kettle body, a material inlet and a connection port, the material inlet and the connection port are arranged at the top of the homogeneous reaction kettle body, and a mixing mechanism is arranged in the homogeneous reaction kettle body, a heating mechanism is arranged on the outer side of the homogeneous reaction kettle body, a mixing mechanism comprises a driving motor, a connecting rod, a supporting rod, a stirring plate and a guide groove, and the driving motor is mounted in the middle of the top of the homogeneous reaction kettle body. According to the homogeneous reaction kettle for processing the tert-butyl hydroperoxide, tert-butyl hydroperoxide reactant mixed liquid is stirred by the stirring plate and the guide groove, so that the mixed liquid can move upwards or downwards, the reactants of the tert-butyl hydroperoxide can be comprehensively mixed, and the reactants of the tert-butyl hydroperoxide react more thoroughly; impurities in the tert-butyl hydroperoxide are reduced, and the quality of the tert-butyl hydroperoxide is improved.

The invention belongs to the technical field of online detection of aerosol-amine collaborative escape heterogeneous reaction, and particularly relates to an online detection system and method for aerosol-amine collaborative escape heterogeneous reaction. The system comprises an aerosol particle generation device and a double-flow-tube reaction device which are communicated with each other, and further comprises an ozone generation and detection device which is communicated with the double-flow-tube reaction device, the double-flow-tube reaction device comprises a first flow tube reactor, an ozone decomposition agent container and a second flow tube reactor which are sequentially connected, and air outlets of the aerosol particle generation device and the ozone generation and detection device are respectively communicated with an air inlet of the first flow tube reactor. The method can be synchronously realized by combining the tandem type double-flow-tube reaction device with APPI-HRMS, the distribution characteristics of the SOZ particle multiphase reaction product can be obtained online in real time, and the effective absorption coefficient can be accurately measured by quantifying the SOZ multiphase reaction rate.

The utility model relates to the technical field of vinyl chloride polymerization production, in particular to a safe feeding device of a solid-liquid-gas three-phase reaction kettle. The safe feeding device of the solid-liquid-gas three-phase reaction kettle comprises a reaction kettle and a pressure stabilizer, the pressure stabilizer is connected with a desulfurization tower through a deoxidation adsorption tower, the desulfurization tower is connected with the reaction kettle through a pre-heater, the reaction kettle is connected with a feeding tank, a temperature control coil pipe is arranged in the reaction kettle and connected with a refrigerating machine through a pipeline, and the refrigerating machine is connected with the deoxidation adsorption tower through a pipeline. And a pre-heating device coil pipe is arranged in the pre-heating device. According to the device, through the cooperative use of the heating sleeve, the connecting pipeline and the pre-heating device coil pipe, the waste heat of the reaction kettle is used for pre-heating a gas-phase raw material, so that the feeding temperature is ensured to reach a proper range, and the influence on the temperature in the reaction kettle due to the too low feeding temperature is avoided, thereby ensuring that a polymerization reaction can be carried out under a stable temperature condition; and the stability of product quality is improved.

The invention relates to a method for producing methylamine by a generally exothermic gas-phase reaction of methanol and ammonia as reactants in the presence of a heterogeneous catalyst at a pressure in the range of 15 to 35 bar. The reactants are evaporated in one or more heat exchangers and superheated prior to being fed to the reactor, wherein the heat exchangers in turn are heated with a stream of hotter product gas from the reactor. In addition to methylamine (monomethylamine, dimethylamine, and trimethylamine), the product gas stream contains unconverted reactants, water, and any other reaction by-products. To control the reactor inlet temperature and limit it to a temperature in the range of 350 DEG C to 410 DEG C, a suitable quenching liquid is introduced into the hot product gas stream prior to feeding the hot product gas stream to a heat exchanger for heating the reactants. Evaporation and overheating of the added quenching liquid removes the corresponding amount of energy extracted from the hot product gas stream, with the result of efficient and rapid cooling of the hot product gas stream. As a result, the temperature difference between the cold side and the hot side of the heat exchanger is small, which means less energy is transferred to the reactant stream, and thus its reactor inlet temperature can be adjusted or limited.

The invention belongs to an amide intermediate treatment device and method for hydrazine hydrate production. Comprising a concentration tank, the concentration tank is provided with a water-phase reaction liquid inlet pipeline and a catalyst inlet, the catalyst inlet is connected with a quartz sand catalyst preparation unit, an outlet of the concentration tank is connected with a concentrated material inlet of an intermediate recovery kettle, and the intermediate recovery kettle is further connected with an ammonia feeding pipeline. An ammoniation liquid outlet of the intermediate recovery kettle is connected with a separation and recovery unit, and a liquid phase outlet of the separation and recovery unit is connected with a hydrazine compound synthesis section; a steam discharge pipeline is arranged at the top of the concentration tank; the method has the advantages that moisture in the water-phase reaction liquid can be removed, ammonium formate is converted into formamide and recycled, meanwhile, metal ions are prevented from being contained in ammoniation liquid, and further, the treatment cost is reduced and continuous treatment is achieved on the basis of energy conservation and consumption reduction.

The invention discloses a novel method for preparing a coralline In2O3 nano material by a low-heat solid-phase precursor method. According to the method, indium nitrate hydrate (In (NO3) 3 * xH2O) and sodium hydroxide (NaOH) are used as raw materials, a precursor is generated through a solid-phase chemical reaction, then calcination treatment is carried out under the low-temperature condition of 300 DEG C, and the In2O3 nanosheet material formed by self-assembly of nanoparticles is obtained after washing and vacuum drying. According to the method, a solvent-free solid-phase reaction system is innovatively adopted, the limitation of an organic solvent in a traditional liquid-phase method is broken through, the contact efficiency of a reaction interface is effectively improved, and the reaction energy consumption is reduced. The preparation method has the characteristics of simple operation steps, high safety coefficient, environmental friendliness, easiness in realization of large-scale production and the like, and has certain technical enlightenment for large-scale preparation of high-end nano devices such as photoelectric catalytic materials and gas sensitive sensor elements.

The invention discloses a method for prolonging the service life of common free radicals and maintaining the chemical reaction activity of the free radicals by injecting or dissolving inert gas into a reaction system. The inert gas-free radical intermediate formed by inert gas molecules or atoms and free radicals prolongs the service life of the free radicals, and meanwhile, the high chemical activity of the free radicals in the inert gas-free radical intermediate is ensured by utilizing a full stable electronic structure of the inert gas, so that the reaction rate of multiphase and homogeneous reaction is effectively improved. According to the method disclosed by the invention, the selectivity or free radical reaction activity control of multiphase and homogeneous free radical reactions can be realized without introducing common free radical stabilizers (such as allyl, benzyl acetyl, aminomethyl and the like), and the inert gas has the characteristics of reusability and no toxicity; the method is suitable for free radical reactions requiring cyclic utilization of the stabilizer and free radical reactions requiring non-toxicity of the stabilizer.

The invention belongs to the technical field of organic synthesis, and particularly discloses a preparation method of N-isobutyl-4-chloropyrrolidone, and the method comprises the following steps: adopting an immobilized CAL-B enzyme as a catalyst, carrying out Michael addition in a water-phase buffer system, and synthesizing N-isobutyl-beta-alanine ethyl ester; a water / supercritical CO2 two-phase reaction system is adopted, and N-isobutyl-N-(chloracetyl)-beta-alanine ethyl ester is synthesized through amidation. A hydrotalcite solid base catalyst is adopted, Dieckmann condensation is carried out in a supercritical CO2 / cosolvent system, and N-isobutyl-4-chloropyrrolidone is synthesized. According to the preparation method of the N-isobutyl-4-chloropyrrolidone, the synthesis of the N-isobutyl-4-chloropyrrolidone is realized through three-step reaction, the defects of a conventional method are avoided, and the preparation method has the advantages of easily available raw materials, few reaction steps and high selectivity, and is suitable for industrial production.

The invention relates to a method for synthesizing menadione through in-tank indirect electrooxidation of 2-methylnaphthalene. Metal titanium is used as a substrate, a Sn-Ir-doped titanium-based PbO2 electrode is prepared by adopting a coating method and is used as an electrolytic anode, and a Pb electrode is used as a cathode. 2-methylnaphthalene, a solvent, cobaltous sulfate, sulfuric acid, ammonium sulfate, an electrocatalyst and water are prepared into anolyte according to a certain proportion, a sulfuric acid aqueous solution serves as catholyte, an oil-water two-phase reaction solution is obtained from an anode in a two-phase electrolysis mode, an oil phase is directly refined to obtain menadione, and a water phase is reused after being refined. The method is short in technological process, few in three wastes, mild in condition and extremely low in cost, and has extremely high industrialization prospects.

The present invention belongs to the field of molecular dynamics simulation, and specifically relates to a method for simulating the three-phase interface of a platinum alloy catalyst based on molecular dynamics, and a method for simulating the three-phase interface distribution and mass transfer performance of a Pt alloy catalyst in a proton exchange membrane fuel cell based on molecular dynamics. The method is based on LAMMPS simulation software and supported by experimental data. The components of the three-phase interface are constructed and optimized step by step, and then spliced ​​together through simulation software to achieve the construction of an all-atomic three-phase interface. Then, relevant simulation parameters are set, and a equilibrium simulation is performed on the all-atomic three-phase interface. Finally, a number of evaluation parameters including oxygen transfer, water transfer, and proton transfer are calculated. Compared with the prior art, the present invention solves the lack of simulation research on the interface environment of an all-atomic three-phase reaction with a Pt alloy as a catalyst in the prior art, and realizes the molecular dynamics simulation of the three-phase interface distribution and mass transfer performance of a Pt alloy catalyst in a proton exchange membrane fuel cell.

According to the red nano-selenium and the preparation method thereof, sodium selenite is used as a selenium source, and ascorbic acid is used as a reducing agent. The reaction medium is impacted by mechanical force in the high-speed crusher and refined, so that the surface area is increased, the reaction is accelerated to achieve a nano effect, and a red nano-selenium mixture is formed. The molar ratio of sodium selenite to ascorbic acid serving as reaction media is increased, the particle size of the nano-selenium is controlled to be 10-50nm, the agglomeration phenomenon of the nano-selenium is reduced, and the stability of the nano-selenium is improved. Ascorbic acid is used as a reducing agent to completely replace traditional toxic reagents such as hydrazine hydrate and thiourea, so that harmful substance residues are avoided. The product can be directly applied without washing, and agglomeration of the nano-selenium material in washing and drying is avoided. Solid-phase mechanochemical reduction is achieved through high-speed smashing equipment, and the strict dependence of a traditional liquid phase on the temperature and the pH value is broken through. The preparation method is low in investment, simple to operate, free of emission of three wastes and suitable for small-batch and industrial production.

The application relates to the technical field of gas-liquid two-phase mixing, and discloses a multiphase reaction system and a multiphase reaction method, the system comprising a mixer and a reactor; wherein the mixer comprises a liquid flow guide pipe 1, a gas-liquid mixing pipe 2 and a gas cavity 3; wherein the liquid flow guide pipe 1 comprises a straight pipe section and a reduced diameter section, the reduced diameter section is connected with the gas-liquid mixing pipe 2; the gas-liquid mixing pipe 2 is connected with the reactor through the gas cavity 3. The multiphase reaction system provided by the application can make the gas phase contact with the liquid phase in the form of micro-bubbles, and can continuously provide micro-bubbles, thereby strengthening the gas-liquid two-phase mass transfer process and improving the reaction rate, and can be applied in liquid phase hydrogenation technology, and is especially suitable for hydrocarbon oil hydrogenation.

The invention belongs to the technical field of catalysis, and particularly relates to a method for regulating and controlling water-phase Mannich reaction activity and enantiomer selectivity based on a Pickering emulsion interface. According to the method, a molecular catalyst is anchored on the surface of a solid emulsifier to form a stable Pickering emulsion system, and the activity and enantioselectivity of a water-phase Mannich catalytic reaction can be regulated and controlled by utilizing the interface characteristics of the Pickering emulsion system. According to the method, efficient utilization of the catalyst and precise regulation and control of the spatial configuration of the chiral product are achieved through the interfacial effect, the method is simple and easy to implement, the substrate application range is wide, and a new strategy is provided for green synthesis of chiral drugs and fine chemicals.

The invention discloses a method for growing a gallium oxide film by using a gallium antimonide metal source, which comprises the following steps of: growing a gallium oxide epitaxial film by using gallium antimonide as a gallium metal source, oxygen as an oxygen source and argon as carrier gas through a low-pressure gas-phase chemical reaction; the sublimation temperature of gallium antimonide is low, and gallium antimonide participates in the reaction as a metal source, so that the temperature of the vapor-phase growth gallium oxide epitaxial film can be effectively reduced; the gallium oxide epitaxial film grown by the method is good in crystallinity and compact in surface, the growth time can be effectively shortened through a low-temperature low-pressure gas phase reaction technology, the production cost is saved, and commercial application is facilitated.

This invention discloses a polyaniline-modified Pt / C hydrogen evolution electrode with low noble metal loading, its preparation, and its application. The hydrogen evolution electrode comprises: a carbon fiber layer; a carbon powder layer containing polyaniline, perfluorosulfonic acid resin, and carbon powder; a polyaniline nanofiber layer; and a catalyst layer containing polyaniline, a Pt / C catalyst, and perfluorosulfonic acid resin. Each layer promotes electron or proton conduction, ensuring that both can smoothly reach the three-phase reaction region to participate in the hydrogen evolution reaction. Simultaneously, each layer has high porosity, ensuring timely drainage of the hydrogen evolution reaction product liquid water and avoiding flooding. The second, third, and fourth layers all contain polyaniline as a catalyst to promote the hydrogen evolution reaction, with the catalyst content distributed from low to high, ensuring that the hydrogen evolution reaction proceeds in stages and avoiding excessively fast local reaction rates that could cause concentration polarization and lead to a decrease in electrolysis performance. The hydrogen evolution overpotential of the polyaniline-modified Pt / C hydrogen evolution electrode of this invention is superior to that of the traditional Pt / C electrode, thus promoting the hydrogen evolution reaction.

The application discloses a preparation method and application of a multi-phenyl phosphorus oxide compound and belongs to the technical field of organic synthesis. Different properties of raw materials are respectively dissolved through double solvents, a catalyst is added into the system, and the entering of the alkali metal salt reactant into the organic phase reaction is helped to be dissolved to obtain a molecular level reactant, so that the reaction is promoted to be completely carried out, the yield of a product is improved, the proportion of impurities, such as the reactant, contained in the product is reduced, the purity of the product is improved, and the high-purity product is a material with low dielectric property. The material is tested in various performances, and excellent flame retardance and low dielectric constant are obtained.

The present invention relates to solvothermal vapor synthesis methods for the crystallization of a phase from a mixture of selected inorganic or organic precursors in an unsaturated vapor-phase reaction medium.

The invention discloses a spiral sleeve type gas-liquid-solid three-phase photochemical continuous flow reactor and a using method thereof.The reactor comprises a device shell, a reaction assembly and a control module, and the reaction assembly is composed of a spiral flow reactor, a coaxially-integrated columnar light source and a feeding and discharging unit; wherein the columnar light source is arranged in the center in the spiral flow reactor to realize uniform illumination; and a composite heat dissipation structure is arranged in the device shell. The reactor adopts a spiral flow channel design, so that the retention time of materials is remarkably prolonged, the gas-liquid mixing and mass transfer efficiency is enhanced, an anti-blocking filtering unit and a plurality of catalyst distribution modes are arranged, and fixed coating or mechanical filling can be selected according to reaction requirements. The spiral casing pipe is adopted as a reaction channel, so that the residence time of reaction materials is prolonged, sufficient reaction is facilitated, meanwhile, the mixing degree and the mass transfer effect of the materials are improved, the gas treatment capacity is enhanced through the large cavity volume design, and the gas-liquid-solid three-phase reaction can be well adapted.

The utility model relates to the technical field of chemical production process equipment, in particular to a solid-liquid-gas three-phase reaction backpressure discharging device which comprises a tubular reactor and a gas-liquid separation tank, a first connecting pipe is mounted at an outlet in the right side of the tubular reactor, and the outer wall of the first connecting pipe is communicated with a reaction buffer pipe; the right end of the first connecting pipe communicates with a rectangular pipe, front-stage valves are installed on the upper side and the lower side of the outer wall of the rectangular pipe correspondingly, and discharging buffer pipes located on the right sides of the two front-stage valves are installed on the upper side and the lower side of the outer wall of the rectangular pipe correspondingly. Due to the fact that the pressure in the discharging buffer pipe is higher than the external pressure, materials are discharged into the gas-liquid separation tank through the rear-stage valve, due to the fact that gas expansion is far larger than the size of the discharging buffer pipe, all the materials can be pushed out through gas expansion, and due to the fact that the front-stage valve and the rear-stage valve are in full-open and full-closed states when acting, the drift diameter of the front-stage valve and the rear-stage valve is far larger than the diameter of solid particles when the front-stage valve and the rear-stage valve are full-open. Therefore, the effect of avoiding the risk of solid blockage is achieved.

The invention relates to a process for producing phosgene by gas-phase reaction of carbon monoxide and chlorine in the presence of a catalyst in a reactor which comprises a plurality of parallel catalyst tubes which are filled with the catalyst and around which at least one fluid heat transfer medium flows, where a feed stream of a mixture of a chlorine input stream and a carbon monoxide input stream is fed into the catalyst tubes and is allowed to react to give a phosgene-comprising product gas mixture, wherein the reaction is carried out at an area load of more than 2.75 kg of phosgene / m2s. The invention also provides a reactor for carrying out the process.

The invention relates to a gas phase chemical reaction heat measurement system and method based on a heat flow method calorimeter (RC1e type). An inert medium and a small gas phase reactor are additionally arranged in a reaction kettle of an original heat flow method calorimeter, a gas raw material is introduced into the gas phase reactor for reaction, and heat released by the reaction is transferred to a calorimetric system through the inert medium for real-time monitoring. The method solves the problem that a traditional heat flow method calorimeter cannot directly measure gas-gas reaction heat, the application range of the calorimeter is expanded, and the method is suitable for gas-phase reaction thermodynamic research and process safety evaluation under high-temperature and high-pressure conditions.

The present invention discloses a micro / supergravity-microinterface jet-type self-rotating reaction device for enhancing the catalytic hydrogenation of heavy turpentine / resin oil. The reaction device comprises: a heat exchanger; a super / microgravity-microinterface reactor disposed within the heat exchanger; and a fluid conveyor, wherein the material inlet is connected to the fluid conveyor. Also disclosed is a method for using the micro / supergravity-microinterface jet-type self-rotating reaction device for enhancing the catalytic hydrogenation of heavy turpentine / resin oil. The present invention utilizes the self-rotating circular flow of the materials participating in the reaction within the reaction device to generate centrifugal force, thereby overcoming gravity to form a super / microgravity-microinterface field, thereby causing the heterogeneous reaction materials to form millimeter- or micrometer-sized droplets and bubbles. The collective scale of the gas-liquid and gas-liquid-liquid interfaces is efficiently controlled from the milli-centimeter level to the micrometer level, effectively promoting interphase mixing and enhancing the transfer process of the heterogeneous reaction materials.