980results about "Ammonia preparation/separation" patented technology

The invention discloses a photocatalytic material with a baseball-shaped structure as well as a preparation method and application of the photocatalytic material, and belongs to the technical field of photocatalytic synthesis of ammonia. The invention discloses a photocatalytic material with a baseball-shaped structure. The photocatalytic material comprises FeMOF with a rod-shaped structure and MnMOF with a spherical structure, the photocatalytic material with the baseball-shaped structure takes FeMOF with a rod-shaped structure as a substrate, and MnMOF with a spherical structure grows on the FeMOF with the rod-shaped structure; and the MnMOF with the spherical structure contains acetate ions. The preparation method comprises the following steps: dissolving an iron source and a manganese source in a solvent, adding an organic ligand, carrying out ultrasonic treatment, and carrying out a hydrothermal reaction; the manganese source is manganese acetate tetrahydrate. According to the photocatalytic material with the baseball-shaped structure, MnMOF with the spherical structure uniformly grows on FeMOF with the rod-shaped structure to form an electron and hole conversion channel, so that the electron and hole transmission rate is enhanced, the photocatalytic performance of the bimetal organic framework structure is enhanced, and the yield of photocatalytic synthesis ammonia is remarkably improved.

The invention discloses a green synthesis ammonia and organic liquid hydrogen storage combined device. The device comprises a water electrolysis hydrogen production device, a nitrogen production device, an organic liquid hydrogen storage device, a low-pressure gas compressor, a synthesis gas compressor and an ammonia synthesis device, the water electrolysis hydrogen production device produces hydrogen and conveys the hydrogen to the organic liquid hydrogen storage device and the synthesis gas compressor; the nitrogen making device is used for making nitrogen and conveying nitrogen to the organic liquid hydrogen storage device and the synthesis gas compressor; the organic liquid hydrogen storage device reacts hydrogen-poor organic liquid with hydrogen generated by the water electrolysis hydrogen production device to generate hydrogen-rich organic liquid, nitrogen is introduced into the hydrogen-rich organic liquid for dehydrogenation reaction, and the hydrogen and the nitrogen are input into the low-pressure gas compressor; the low-pressure gas compressor and the synthesis gas compressor compress hydrogen and nitrogen and input the compressed hydrogen and nitrogen into the ammonia synthesis device; and the ammonia synthesis device generates ammonia under the action of the catalyst. The gas-liquid mass transfer efficiency and the hydrogen desorption rate are improved, the energy consumption and the operation and maintenance cost of the compressor are reduced, and accurate adjustment of the hydrogen-nitrogen ratio is achieved.

The invention provides a sewage steam stripping thermal self-circulation system which is characterized in that a first heat exchanger receives acidic water and is connected with a hot feed inlet of a steam stripping tower through a second heat exchanger, a first gas outlet of the steam stripping tower outputs ammonia gas through the second heat exchanger, and a second gas outlet outputs hydrogen sulfide; a purified water outlet of the stripping tower is respectively connected with a steam reboiler and a purified water inlet of a steam generator, a liquid outlet of the steam reboiler is connected with a condensed water inlet of the steam generator, a purified water outlet of the steam generator outputs purified water through a first heat exchanger, and a steam outlet and a condensed water outlet of the steam generator are connected with a steam compressor. And a steam outlet of the steam compressor is connected with a steam inlet of the steam reboiler. The problem of heat waste of purified water and condensed water can be solved, full utilization of medium-high temperature waste heat is achieved, the heat exchange process of raw material water is improved, the to-be-cooled temperature of the purified water is reduced, and energy loss is reduced.

The invention relates to the technical field of renewable energy source and process industrial intelligent control, and discloses a full-process optimization method and system for synthesizing ammonia through wind-solar hydrogen production, which can realize full-process collaboration and self-adaption to wind-solar fluctuation, and can guarantee system safety and economy in long-term operation. According to the scheme, the method comprises the steps that running state data of a wind-solar power generation system, a hydrogen production system, a hydrogen storage system and a synthetic ammonia system are collected in real time, and the collected data are preprocessed; establishing a device-level adaptive boundary model, and calculating a dynamic safe operation boundary of the key device; inputting wind-solar power prediction of a future time domain, performing rolling optimization based on the multi-objective optimization model according to constraint conditions, and generating load setting instructions of each system; and executing the load setting instruction, collecting real response data of the system, comparing a deviation between a real response and a predicted response, calculating a multi-dimensional deviation index, and when the deviation exceeds a set threshold value, performing feedback calibration on the equipment-level adaptive boundary model.

Systems and methods for synthesizing ammonia include one or more electrochemical hydrogen pumps to recover excess hydrogen gas from the ammonia synthesis product stream. The systems and methods improve overall yield and efficiency of the ammonia production process by separating and purifying hydrogen gas that otherwise would be lost.

A hydrogen production system for producing a hydrogen gas product includes a geologic hydrogen source configured to provide a feedstock comprising hydrogen, nitrogen, and helium and purification equipment comprising two or more of: a pressure swing adsorption (PSA) device; a guard bed; a separation membrane; a reactive membrane; or a cryogenic separation device. The purification equipment is configured to receive the feedstock from the geologic hydrogen source and produce a hydrogen gas product, and production of the hydrogen gas product exhibits a carbon intensity score less than 3.0 kg CO2 eq / kg H2.

The invention relates to a urea hydrolysis ammonia preparation reaction device, belongs to the technical field of ammonia preparation reaction, and aims to solve the problems that a scraper blade is in frictional contact with a hard crystal layer for a long time, blade abrasion, structural deformation and the like are easy to occur, and the scraper blade needs to be replaced by dismounting related parts after shutdown, the urea hydrolysis ammonia preparation reaction device comprises a reaction tank, and a hollow pipe is rotatably connected in the reaction tank; a driving part is installed at one end of the reaction tank, the driving part is in transmission connection with the hollow pipe, an air pump is further installed at one end of the reaction tank, the output end of the air pump is rotationally connected with the hollow pipe, a pushing part is installed in the hollow pipe, and transverse pipes are installed on the two sides of the hollow pipe in a communicating mode. When the scraper is used, the abraded first scraper can be retracted into the shell, meanwhile, the standby second scraper is pushed out and positioned, the whole process is completed in the running state of the device, the production continuity and the equipment utilization rate are greatly improved, and the labor intensity of workers and the operation and maintenance cost are remarkably reduced.

The invention discloses a green electricity ammonia production synthesis tower temperature control system which is arranged in a pipeline between a synthesis tower and a fused salt heating unit, a temperature acquisition end of a TC1 controller is arranged in a pipeline between fused salt electric heaters, and a signal output end of the TC1 controller is in communication connection with a lava electric heater; the temperature acquisition end of the TC2 controller is arranged in the f1 hot gas output pipeline between the fused salt heater and the synthesis tower, and the signal output end of the TC2 controller is in communication connection with the fused salt pump; a temperature acquisition end of the TC controller is arranged at an inlet of a 1 # catalytic bed of the synthetic tower; and a signal output end of the TC controller is in communication connection with an adjusting valve f0 on a process cold air pipeline of the synthetic tower and an adjusting valve f1 on a cold air pipeline of the molten salt heater. Through automatic control of the TC1TC2TC system, adverse effects caused by fluctuation of green electricity such as wind, light and the like can be completely met, and it is guaranteed that the inlet temperature of the 1 # catalytic bed of the synthesis tower is in a reasonable index.

The invention discloses a flexible ammonia synthesis system capacity configuration optimization method based on wind-solar combined power generation. Comprising the following steps: constructing a wind-solar hydrogen production coupling ammonia synthesis system; determining flexible boundary parameters of modules for producing hydrogen by electrolyzing water, synthesizing ammonia and the like; building an energy mass flow model of the flexible system under variable working conditions by utilizing dynamic analogue simulation of coupling of water electrolysis hydrogen production and ammonia synthesis; and by taking the minimum leveling production cost as a target parameter, constructing a wind-solar hydrogen production coupling ammonia synthesis system capacity configuration optimization model, and solving a target function to obtain wind-solar installed capacity, energy storage, the scale of hydrogen storage equipment, rated power of an electrolytic bath and ammonia synthesis equipment, and the optimal leveling production cost of ammonia. The universal capacity configuration optimization method of the green ammonia synthesis system for the flexible process is realized, the leveling production cost of the green ammonia is reduced, and the method is suitable for guiding the construction, popularization and application of an actual industrial green ammonia synthesis system.

Systems and methods for synthesizing ammonia include one or more electrochemical hydrogen pumps to recover excess hydrogen gas from the ammonia synthesis product stream. The systems and methods improve overall yield and efficiency of the ammonia production process by separating and purifying hydrogen gas that otherwise would be lost.

A process includes feeding atmospheric air to an air separation unit to produce a flow of nitrogen and a flow of oxygen; combining the oxygen with a hydrocarbon flow and water in an auto-thermal reformer to produce a retentate stream to a membrane water gas shift reactor (M-WGSR); generating, from the retentate stream to the M-WGSR, a permeate stream from the M-WGSR that includes a first flow of carbon dioxide and a first combined flow of hydrogen and nitrogen; feeding a retentate stream to a membrane steam methane reformer (M-SMR) to produce a permeate stream from the M-SMR that includes a second flow of carbon dioxide and a second combined flow of hydrogen and nitrogen; feeding the first and second combined flows to an ammonia synthesis unit to produce ammonia; and feeding the first and second flows of carbon dioxide and the ammonia to a urea synthesis unit to produce a flow of urea by fully utilizing the carbon dioxide.

The invention relates to the technical field of gas adsorption materials, in particular to a heteropoly acid modified GO-coated MMT composite material and a preparation method and application thereof. The preparation method comprises the following steps: ultrasonically dispersing graphite oxide in deionized water, stirring for 2-4 hours to obtain a graphite oxide solution, adding methylcyclopentadienyl manganese tricarbonyl into ethylene glycol, and stirring for 12-24 hours to obtain an MMT solution; pouring the graphite oxide solution into the MMT solution, reacting at 150-180 DEG C for 8-12 hours, washing, and freeze-drying to obtain GO-coated MMT composite hydrogel; and adding the GO-coated MMT composite hydrogel into deionized water, then adding heteropoly acid, stirring at 60-80 DEG C for 8-12 hours, and carrying out suction filtration and washing to obtain the heteropoly acid modified GO-coated MMT composite material. According to the heteropolyacid modified GO (at) MMT composite material disclosed by the invention, a complex with strong electrostatic adsorption force can be formed on the surface of GO (at) MMT by introducing heteropolyacid, and meanwhile, Bronsted acid sites and Lewis acid sites are increased, so that the adsorption performance is enhanced, and low-concentration ammonia gas adsorption is realized.

The invention relates to the technical field of energy scheduling, in particular to a dynamic scheduling method for a green electricity ammonia production system based on deep reinforcement learning. According to the big name, a deep reinforcement learning agent is constructed, a near-end strategy optimization algorithm is adopted, and training is carried out by maximizing an innovative composite reward function. According to the composite reward function, accumulated green penalty constraints and multiple high-risk aversion penalty terms are introduced, and complex economic, physical and policy constraints are coupled and optimized. According to the method, multiple constraints can be effectively treated, the load smoothness and energy storage dynamic balance of the electrolytic cell are realized, the accumulated electricity purchase quantity is strictly controlled to be below a preset proportion, the problems of greenness, stability and economy in a high green electricity ammonia production project are solved, and the continuity of back-end production is guaranteed.

The invention relates to an electricity-hydrogen-ammonia coupling multi-energy collaborative optimization system, and belongs to the technical field of comprehensive energy systems and clean energy conversion. According to the invention, links of renewable energy power generation (photovoltaic and wind power), electrolytic hydrogen production, hydrogen storage and transportation, hydrogen energy power generation, hydrogen-based chemical production and the like are deeply coupled to construct an electricity-hydrogen-ammonia coupled multi-energy collaborative optimization system, and a'source-storage-use 'integrated zero-carbon energy supply system is formed; therefore, the function boundary and the application scene of the existing electro-hydrogen coupling system are expanded. According to the invention, multi-module operation of wind-solar power generation, power grid interaction, electrolytic hydrogen production / hydrogen fuel cell power generation, green ammonia synthesis and the like is coordinated through an intelligent scheduling mechanism, so that the system is ensured to participate in multi-dimensional transaction of the power market and the hydrogen energy / chemical product market at the same time; the comprehensive benefits of full consumption of renewable energy sources, peak regulation income maximization of the power grid, zero carbonization of chemical production and value-added utilization of by-products are achieved.

The invention relates to the technical field of chemical engineering, in particular to a food-grade ammonia water production system and method. The food-grade ammonia water production system comprises a liquid ammonia tank, a first heat exchanger, a first buffer device, an absorption tower and a second heat exchanger which are connected in sequence; the first heat exchanger is used for heating liquid ammonia to form ammonia gas; the second heat exchanger is used for cooling the ammonia water; an ammonia gas pipeline is arranged between the first buffer device and the absorption tower, and a pressure sensor is arranged on the ammonia gas pipeline; a second buffer device is arranged between the pressure sensor and the ammonia gas pipeline; the first buffer device internally comprises an air inlet pipe, a plurality of distribution pipes arranged in parallel and an exhaust pipe which are connected in sequence; the pipe diameter of the distribution pipe is smaller than that of the gas inlet pipe or the gas outlet pipe. The food-grade ammonia water production system provided by the invention can reduce the fluctuation amplitude of pipeline pressure caused by the process of forming ammonia gas from liquid ammonia, improves the production stability, and enables the detected pipeline pressure value to have a higher reference value.

The present invention relates, in general, to systems and methods for generating hydrogen from ammonia on-board vehicles, where the produced hydrogen is used as fuel source for an internal combustion engine along with ammonia. The present invention utilizes ammonia not only as a co-fuel for the engine, but also as a heat-exchange medium used by a cooling system for the internal combustion engine, such that the heat is transferred from hot engine coolant to the ammonia, thereby cooling the engine coolant, and also pre-heating the ammonia.

A target palladium membrane selection method, a hydrogen-related reaction execution method, and an osmosis diffusion rate determination method and system are provided. The selection method includes determining target lattice parameters of the target palladium membrane, and target metal components and proportions thereof according to a target osmosis diffusion rate of hydrogen gas passing through a target palladium membrane, a target thickness of the target palladium membrane, and a corresponding relationship between the permeation diffusion rate of hydrogen gas passing through a sample palladium membrane and a specific parameter group of the sample palladium membrane; and selecting as a target palladium membrane a palladium membrane having the target lattice parameters, the target metal components and proportions thereof, and the target thickness.

The invention discloses a coupling carbon capture selective catalytic denitration pyrolysis device which comprises a shell, a pyrolysis cylinder, a carbon capture cylinder and a heating cylinder, the shell is a rectangular shell, the top of the shell is provided with a separation cavity, the bottom of the shell is provided with a gas collection cavity, and the gas collection cavity is communicated with the pyrolysis cylinder. The first end of the pyrolysis cylinder extends into the shell from the top of the shell and communicates with the gas collection cavity, the pyrolysis cylinder is arranged at the center of the shell, and the pyrolysis cylinder is used for pyrolyzing ammonium carbamate powder and conveying pyrolysis gas of carbon dioxide and ammonia gas generated by pyrolysis into the gas collection cavity; the slaked lime water inlet is used for conveying raw and cooked lime water into the carbon capture cylinder so as to adsorb carbon dioxide in pyrolysis gas entering the carbon capture cylinder from the gas collection cavity. Compared with urea ammonia preparation, the ammonia preparation efficiency is improved by 5.4%-24.8% and averagely improved by 15.60%, the ammonia preparation energy consumption is reduced by 30.6%-40.6%, and meanwhile, the denitration efficiency of the generated mixed gas entering the flue gas selective catalytic denitration reactor can be improved by 2.8%-4.2%.

Synthesis method of a process gas rich in H2 / CO, or in NOx, or in HCN, or in CH2O, for the subsequent production of at least a chemical among hydrogen, ammonia, methanol, olefins / paraffins / alcohols by Fischer Tropsch synthesis, nitric acid, hydrogen cyanide, formaldehyde, comprising a direct cooling with nitrogen. The process gas is discharged at high temperature from a steam and / or CO2 reforming reactor or from an adiabatic oxidation reactor with oxygen-containing gas. The process gas at high temperature, before next unitary operations, is partially or totally cooled by mixing with a colder nitrogen stream.

The utility model relates to a molecular sieve regeneration device for liquid nitrogen wash purified gas of a synthetic ammonia production device. In the device, a low-pressure nitrogen pipeline is connected with a molecular sieve adsorber, the bottom of the molecular sieve adsorber is connected with a nitrogen heater through a pipeline, and the nitrogen heater is connected to a phosphoric acid device hot blast stove through a fuel gas pipeline. The top of the molecular sieve adsorber is connected with the liquid nitrogen washing cold box. A track ball valve I is arranged on a connecting pipeline between the bottom of the molecular sieve adsorber and the nitrogen heater; and a regulating valve II is arranged on the nitrogen heater and the fuel gas pipeline. According to the utility model, high-concentration CO adsorbed by the molecular sieve is sent to the hot blast stove of the phosphoric acid device for combustion at the initial stage of the regeneration preheating stage of the liquid nitrogen wash molecular sieve, thereby improving the automatic control level of molecular sieve regeneration programs; the problem of fluctuation of a low first washing device during regeneration of the molecular sieve is effectively solved, the problem that a combustible poisonous gas detector gives an alarm due to direct emptying of high CO during regeneration is thoroughly solved, and part of energy is recycled.

The utility model discloses an adjustable ammonia gas recovery absorber, which relates to the technical field of ammonia gas recovery and comprises a base, a recovery component is fixedly mounted at the top of the base, a stirring component is arranged at the top of the recovery component, and a discharge component is fixedly connected to the right side of the back of the top of the recovery component. The recycling assembly comprises a recycling box, a suction pump is fixedly connected to the position, close to the front face, of the right side of the top of the recycling box, a suction pipe is fixedly connected to the inlet end of the suction pump, and a control valve is fixedly connected to the outer surface of the suction pipe. According to the adjustable ammonia gas recovery absorber disclosed by the utility model, the extraction pump is used for providing power, the ammonia gas is sucked close to an ammonia gas gathering part and enters the inner cavity of the recovery box by utilizing the extraction pipe and the gas suction port, the entering ammonia gas is controlled by the water pump to extract water in the recovery box, and then the water is conveyed into the water storage box by utilizing the water outlet pipe and is sprayed by utilizing the spray head; and ammonia gas is mixed to form ammonia water, so that the ammonia gas storage is facilitated.

The invention provides a synthetic ammonia catalyst and a preparation method thereof, the catalyst comprises a carrier and active metal, and the carrier is alkali metal fluoride or alkaline earth metal fluoride. Alkali (soil) metal fluoride is used as a carrier to be applied to the field of ammonia synthesis for the first time, and is used for loading an active metal precursor to prepare the catalyst. The catalyst provided by the invention has various advantages of currently reported thermocatalytic synthesis ammonia catalysts: strong electron donating ability, excellent performance, good air stability, low price and easy availability, and reactants are activated by the carrier.

The application relates to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof, and belongs to the field of coal gasification combined cycle power generation coupled with biomass, in particular to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof. The application is used for solving the problems that the existing IGCC system has low CO2 capture rate, high energy consumption, low power generation efficiency, and a large amount of nitrogen generated in the oxygen taking process and difficult to effectively utilize. The application comprises an air separation device, a gasification furnace, a sensible heat recovery device, a purification device, a gas power generation unit, a waste heat recovery unit, a steam power generation unit, a biomass fermentation device, a methane reforming unit, an adsorption separation unit and an ammonia synthesis tower. The application is based on the overall coal gasification combined cycle power generation system of post-combustion CO2 capture and oxygen-enriched combustion technology, introduces a biomass ammonia synthesis process, generates H2 and CO through biomass fermentation and reforming, utilizes N2, and improves the system efficiency.

The present disclosure relates to a kind of renewable energy electrolytic water hydrogen synthesis ammonia system synergic control method and device, the method includes: according to the predicted power generation of target renewable energy electrolytic water hydrogen synthesis ammonia system corresponding, determine its corresponding full-day multi-period simulated hydrogen production power, and full-day multi-period simulated ammonia production power;Real-time monitoring is carried out to target renewable energy electrolytic water hydrogen synthesis ammonia system, determines its corresponding real-time power generation and real-time hydrogen inventory;According to real-time power generation, real-time correction adjustment is carried out to full-day multi-period simulated hydrogen production power, determines full-day multi-period real-time hydrogen production power;According to real-time hydrogen inventory, real-time correction adjustment is carried out to full-day multi-period simulated ammonia production power, determines full-day multi-period real-time ammonia production power.The embodiment of the present disclosure can realize the multi-time scale synergic control optimization of renewable energy electrolytic water hydrogen synthesis ammonia system, reduce the abandonment rate of renewable energy, improve energy utilization and system benefit and stability.

The utility model discloses a urea hydrolysis ammonia production system capable of recycling heat. The urea hydrolysis ammonia production system comprises a urea hydrolysis reactor, an energy-saving heat exchanger, a steam-water flash tank, a steam-driven pump, a drain tank, a urea dissolving tank and a urea solution storage tank, a steam drain outlet of the urea hydrolysis reactor is communicated with a heat source side inlet of the energy-saving heat exchanger, and a heat source side outlet is communicated with an inlet of the steam-water flash tank; a cold source side inlet of the energy-saving heat exchanger is communicated with an outlet of the urea solution delivery pump, and a cold source side outlet is communicated with a urea solution inlet of the urea hydrolysis reactor; an outlet of the steam-water flash tank is communicated with an inlet of the steam-driven pump, and an outlet of the steam-driven pump is communicated with an inlet of the drain tank. The device has the beneficial effects that the urea solution is preheated and the urea solution in the urea dissolving tank and the urea solution storage tank is heated by utilizing the steam drain of the urea hydrolysis reactor, the vibration of the drain tank and the visual pollution of white smoke are eliminated, the heat of the steam drain is recovered, the heat utilization rate is improved, and the energy consumption and the operation cost are reduced.

The utility model relates to the technical field of condensation recovery, and discloses a condensation recovery device of a nitriding furnace distillation retort, which comprises a reaction furnace with an open bottom and fixed in the air, a sealing bottom cover arranged right below the reaction furnace, a lifting module arranged below the sealing bottom cover, and a uniform air supply structure arranged in the reaction furnace, ammonia gas, hydrogen and other gases are respectively fed into the reaction furnace through the uniform air supply structure; the condensation shunting structure comprises a condensation chamber, is arranged above the reaction furnace and is connected with the reaction furnace through an exhaust pipe, waste gas is converted into hydrogen and ammonia water through the condensation shunting structure, and the hydrogen is recycled; the decomposition and diversion structure comprises a decomposition chamber arranged on one side of the reaction furnace, the top of the decomposition chamber is connected with the condensation chamber through a flow guide pipe, ammonia water is decomposed into ammonia gas and water in the decomposition chamber, and the ammonia gas is recycled. Compared with the prior art, the device disclosed by the utility model has the advantages that the condensation shunting structure is arranged, so that waste gas can be condensed, ammonia water is prevented from flowing back, and hydrogen and ammonia gas are recycled.

The utility model relates to the technical field of livestock and poultry breeding, in particular to an ammonia gas purifying and collecting device for a livestock and poultry breeding house, which not only can filter dust and impurities in ammonia gas and prevent the dust from being dissolved in water to influence the quality of ammonia water, but also improves the collecting rate of the ammonia water by stirring and increasing the contact area. Comprising an air exhaust mechanism; the device further comprises a filtering mechanism, a spraying mechanism, a transferring mechanism and a stirring mechanism, the filtering mechanism is installed on the air exhaust mechanism and filters ammonia gas, the spraying mechanism is installed on the air exhaust mechanism and collects ammonia water, and the transferring mechanism is installed on the spraying mechanism and facilitates ammonia gas conveying. And the stirring mechanism is mounted on the spraying mechanism and accelerates the dissolution of ammonia gas in water.

The application relates to the field of photocatalytic materials, in particular to a SiO2 / Au nanostar / TiO2 composite catalyst, a preparation method and application in ammonia synthesis. The preparation method comprises the following steps: preparing monodisperse SiO2 microspheres; preparing functionalized modified SiO2 microspheres; preparing Au nanostar loaded SiO2 microspheres; and preparing the SiO2 / Au nanostar / TiO2 composite catalyst. The catalyst has a unique core-shell structure, the core diameter of the Au nanostar is 30-40 nm, the length of the sharp spike is 6-10 nm, and the tip part penetrates into the TiO2 shell layer. In the deionized water system, the catalyst can efficiently and stably catalyze nitrogen reduction to synthesize ammonia under visible light irradiation without adding any sacrificial agent or electrolyte, solves the problems that the existing photocatalytic ammonia synthesis technology depends on an organic sacrificial agent, is easy to corrode equipment, and the catalyst stability is poor, and provides a green, efficient and stable new scheme for synthesizing ammonia.

The application discloses a device and method for preparing tert-butylamine by directly ammoniating isobutene, which comprises sequentially connected raw material preparation unit, reaction separation unit, rectification separation unit and circulating recovery unit; the raw material preparation unit is used for storing, mixing and heating raw materials; the reaction separation unit is used for pressurizing reaction of the raw materials in the raw material preparation unit and gas-liquid separation of products; the rectification separation unit is used for rectification separation of liquid-phase products separated by the reaction separation unit and recovery of part of unreacted raw materials; and the circulating recovery unit is used for rectification recovery of part of raw materials of gas-phase products separated by the reaction separation unit. The application has the characteristics of low overall equipment investment, high energy utilization rate, simple product separation and purification, perfect overall device design and small environmental pollution.

This relates to a system and method for generating hydrogen from ammonia on a vehicle. [Solution] The present invention relates to a system and method for producing hydrogen from ammonia on a vehicle, wherein the produced hydrogen is used together with ammonia as a fuel source for an internal combustion engine. The present invention utilizes ammonia not only as a co-fuel for the engine but also as a heat exchange medium used in a cooling system for the internal combustion engine, thereby transferring heat from the high-temperature engine coolant to the ammonia, which cools the engine coolant and preheats the ammonia into a gaseous state, providing a system and method for producing hydrogen from ammonia on a vehicle for use as a fuel source for an internal combustion engine.