87 results about "Energy coupling" patented technology

The embodiment of the invention discloses an intelligent energy consumption regulation and control steel smelting system based on multi-energy complementation, and the system comprises a multi-energy complementation energy supply system which is used for integrating various energy forms, forming a dynamic cooperative energy supply network, and carrying out the energy cooperative operation according to an energy priority strategy and a dynamic matching mechanism; the intelligent regulation and control platform adopts a three-layer framework of'perception-decision-execution 'to coordinate energy flow and process operation between the multi-energy complementary energy supply system and the multi-energy coupling process equipment; the multi-energy coupling process equipment comprises hydrogen-based direct reduction ironmaking equipment, and hydrogen is used for replacing traditional coke to serve as a reducing agent for ironmaking; comprehensive energy supply monitoring and optimization can be carried out on the steel smelting process, various renewable energy sources are combined, and the problems that a single renewable energy source is intermittent, depends on a power grid and the like are effectively solved; meanwhile, the multi-energy complementary hydrogen storage process is coupled with the hydrogen metallurgy process, and the multi-energy cooperation problems of whole-process green power supply, waste heat utilization and the like are solved.

The invention discloses a multi-energy coupling-containing optimal scheduling method, which comprises the following steps: S1, system modeling and basic data preparation: establishing models of renewable energy sources, energy coupling equipment and energy storage equipment, collecting and processing basic data, modeling a multi-energy coupling system, and obtaining a multi-energy coupling system model; comprising the links of production, transmission, conversion, consumption and the like of various energy sources, and the model can accurately reflect the dynamic characteristics and constraint conditions of the system; and S2, load prediction and demand analysis. According to the optimal scheduling method containing multi-energy coupling, complementarity and collaboration among different energy sources can be fully considered, and collaborative utilization of various energy sources is realized through an optimal scheduling strategy, so that energy waste can be reduced, and the overall utilization efficiency of the energy sources can be improved, for example, in an electric power, natural gas and thermal power integrated energy system, the optimal scheduling method has a wide application prospect. By coordinating the operation of the subsystems, the energy utilization efficiency can be maximized on the premise of meeting the requirements.

The invention belongs to the field of high-salinity organic wastewater treatment, and particularly relates to a shale gas high-salinity wastewater electrochemical catalysis coupling membrane separation low-carbon treatment method which comprises the steps of pretreatment, electrocatalytic oxidation, membrane separation, salt recycling and product recovery, intelligent management and control, energy coupling and the like. Through cooperation of an electrochemical catalysis coupling membrane separation technology and mass transfer strengthening, anti-pollution design and intelligent optimization of an intelligent energy system, the treatment efficiency and the recycling level of the shale gas high-salinity wastewater can be remarkably improved, and low-carbon, economical and efficient treatment of the shale gas high-salinity wastewater is achieved; and the method can also be used for treating similar high-salt organic wastewater generated by conventional oil and gas resource development, and has good popularization and application prospects.

The invention relates to the technical field of carbon emission tracking, and discloses a multi-energy complementary system carbon emission dynamic metering and tracking method, device and equipment, and the method comprises the steps: obtaining real-time operation data of electric power, thermal power, gas and energy storage in a multi-energy complementary system and carbon emission related data; calculating a power side real-time carbon emission factor, a thermal side real-time carbon emission factor and a gas side real-time carbon emission factor of each node in the multi-energy complementary system and a carbon emission factor of the energy storage system in an energy charging and discharging state based on the real-time operation data and the carbon emission related data; based on the real-time carbon emission factor of the power side, the real-time carbon emission factor of the thermal side, the real-time carbon emission factor of the gas side and the carbon emission factor of the energy storage system in the charging and discharging state, calculating the electric carbon emission, the gas carbon emission and the thermal carbon emission of the user; according to the invention, carbon emission factors and carbon emission of electricity, heat and gas of the multi-energy coupling system can be dynamically metered, and more accurate carbon accounting is realized.

The invention discloses a supercritical carbon dioxide energy storage and industrial complementary energy coupling circulation system and a control method, and relates to the technical field of energy storage. The waste heat recovery system performs countercurrent heat exchange with carbon dioxide by using high-temperature flue gas generated by combustion of high / coke / converter gas; and the residual cold recovery system uses condensed water of the power plant for cooling carbon dioxide in each link. The compressed carbon dioxide energy storage system compresses and stores carbon dioxide in a high-pressure storage tank. In the compressed carbon dioxide power generation system, high-pressure carbon dioxide is preheated and heated to drive a high-pressure expansion machine to do work and generate power, the carbon dioxide after doing work is heated to drive a low-pressure expansion machine to do work and generate power, and finally the carbon dioxide is cooled, condensed and liquefied through a cooler and a condenser and then returns to a low-pressure storage tank. According to the system, industrial complementary energy is efficiently utilized, stable energy storage and release are achieved, and the energy utilization efficiency is improved. The problem that defects exist in the aspects of industrial gas efficient utilization and energy storage coupling in the prior art is solved.

The invention relates to a novel adsorption storage and plasma catalytic oxidation double-zone coupled VOCs (Volatile Organic Compounds) circulating purification method, which at least comprises the following steps of: filling a first catalyst into a non-discharge zone of a reaction tube as an adsorption bed layer, and filling a second catalyst into a plasma discharge zone of the reaction tube as an oxidation bed layer; 2, introducing mixed gas containing volatile organic compound molecules into the reaction tube filled with the adsorption bed layer and the oxidation bed layer in the step 1, and adsorbing to obtain the adsorption bed layer with saturated storage; and switching the mixed gas into mixed gas without volatile organic compound molecules, accurately matching the desorption temperature of the target molecules by utilizing a localized temperature field generated by the plasma, and carrying out oxidation regeneration under the action of the plasma and a second catalyst. According to the method, an energy coupling mechanism between dynamic adsorption and plasma concerted catalytic oxidation is established through sequential control, effective removal of gaseous organic pollutants is guaranteed, and 100% carbon circulation can be achieved.

The invention discloses a solid hydrogen storage and fuel cell energy coupling system and method, and belongs to the technical field of fuel cells, the system comprises a solid hydrogen storage module, a combustion cell, a hydrogen storage pipeline, a hydrogen delivery pipeline and a circulation pipeline, the hydrogen storage pipeline is used for inputting hydrogen into the solid hydrogen storage module, the hydrogen conveying pipeline is used for conveying hydrogen output by the solid hydrogen storage module to the fuel cell; the solid hydrogen storage module comprises a plurality of reactors, each reactor is of a double-layer structure composed of a first cavity and a second cavity, the first cavity is filled with a metal hydride bed and a heat exchange pipe penetrating through the metal hydride bed, and first heat exchange fins distributed in the metal hydride bed are installed on the heat exchange pipe; a phase-change material and spiral second heat exchange fins distributed in the phase-change material are arranged in the second cavity; each heat exchange pipe is connected into a circulating pipeline penetrating through the fuel cell, and a circulating medium circularly flowing in the circulating pipeline transfers heat generated by power generation of the fuel cell into the metal hydride bed to promote hydrogen release.

The invention relates to an optimized dispatching method for a multi-energy coupling system containing electricity-ammonia conversion, and belongs to the field of optimized dispatching of power system operation. The economic and environment-friendly potential of ammonia energy in a multi-energy coupling system is excavated by carrying out refined modeling on equipment for converting ammonia into electricity, an ammonia fuel cell, ammonia energy storage and the like and considering the thermal power in the ammonia synthesis process. Combining the characteristics of the energy conversion equipment and the energy storage equipment to construct a mathematical model; and constructing an economic dispatching model of the multi-energy coupling system containing electro-ammonia conversion by taking the minimum comprehensive cost as a target. According to the multi-energy coupling system optimal scheduling method based on electro-ammonia conversion, the electro-ammonia conversion efficiency and efficient consumption and diversified utilization of renewable energy sources can be effectively improved.

The present invention relates to a cold-electricity integrated utilization system based on energy coupling, comprising: an LNG receiving station, wherein LNG is gasified into natural gas after being utilized for cold energy by a cold energy power generation and refrigeration system, a liquid air energy storage system, a cold energy air separation system, and a light hydrocarbon separation system. The natural gas then enters the natural gas pipeline network, the gas-fired power generation system, and the natural gas hydrogen production system; the cold energy power generation and refrigeration system utilizes cold energy to generate electricity for self-use within the plant area, with excess electricity transmitted to the power grid, while also producing refrigerated products; the liquid air energy storage system utilizes cold energy to generate electricity for self-use within the plant area, with excess electricity transmitted to the power grid; the cold energy air separation system utilizes cold energy to produce liquid oxygen, liquid nitrogen, and liquid helium; the light hydrocarbon separation system utilizes cold energy to produce ethane and LPG products; the gas-fired power generation system utilizes natural gas to generate electricity and transmits it directly to the power grid; and the natural gas hydrogen production system utilizes natural gas to produce hydrogen. The present invention can be widely applied to the field of LNG cold energy utilization technology.

The invention discloses a heat supply system, method and equipment based on chemical looping electricity storage. The heat supply system comprises an energy storage unit and an energy release unit which achieve energy coupling through a metal-oxygen carrier exchange system. The energy storage unit comprises a heat pump assembly, a reduction reactor and a first heat exchange assembly, the heat pump assembly and the reduction reactor are both connected with the first heat exchange assembly, and water flowing through the heat pump assembly exchanges heat with oxygen discharged by the reduction reactor through the first heat exchange assembly; the energy release unit comprises an oxidation reactor and a second heat exchange assembly, the oxidation reactor is connected with the second heat exchange assembly, and water flowing into the second heat exchange assembly exchanges heat with flue gas discharged by the oxidation reactor. By combining a chemical looping electricity storage technology with a heat supply system, electric energy is converted into high-density chemical energy by using a reduction reactor and stored in a metal oxygen carrier in the period of sufficient green electricity; and during the period of insufficient green power, chemical energy stored in the metal oxygen carrier is released by using the oxidation reactor and is used for producing hot water or steam. According to the system, cross-time-space conversion and flexible scheduling among electric energy, chemical energy and heat energy are achieved, so that the comprehensive utilization efficiency of energy and the heat supply reliability are improved, and meanwhile the operation cost is reduced.

The invention relates to the technical field of water treatment, and discloses a filter integrated backwashing system based on reverse osmosis concentrated water reuse and energy recovery, which is characterized in that a gas-liquid injection device is integrated, high-pressure concentrated water discharged by reverse osmosis is used as a unique power source, backwashing fluid is directly output, and a backwashing water pump and a scrubbing fan which are independently arranged in a traditional system are replaced. The system integration complexity is greatly reduced, the installation and debugging workload is reduced, the coordination control problem among multiple devices can be improved, and the system is more compact in structure and more reasonable in layout. Meanwhile, the pressure potential energy of the reverse osmosis concentrated water is directly converted into kinetic energy for driving the backwashing process of the filter, a fan and a water pump which are completely driven by external electric energy in the traditional process are replaced, energy coupling and recycling of the system are realized, and the pressure energy which is originally wasted through energy dissipation is effectively utilized; and the power consumption in a backwashing link is directly reduced, so that the energy utilization efficiency of the system is improved.

The invention discloses a cross-medium energy coupling recycling method and system in main and auxiliary power switching, and relates to the technical field of ship power system energy recovery, and the method comprises the steps: capturing a multi-medium waste energy flow in a ship main and auxiliary power switching process in real time through a multi-mode sensing network; generating a feature data set comprising an energy entropy mapping table, a medium compatibility matrix and a dynamic recoverable threshold; calculating an optimal energy conversion path and a storage strategy, and generating a multi-objective optimization decision set; the heterogeneous energy recovery device is driven to execute cross-medium energy coupling operation, and energy conversion efficiency and system stability indexes are fed back in real time; and according to the deviation degree between the feedback data and a preset energy efficiency target, generating an energy reutilization efficiency evaluation report and a model adaptive log. According to the cross-medium energy coupling recycling method and system in main and auxiliary power switching, the energy recycling efficiency under the condition of ship working condition transition is improved.

The invention relates to an electricity-hydrogen-chemical-storage-heat multi-energy coupling system intelligent regulation and control simulation verification platform and method based on a distributed architecture, and the platform comprises an energy management and control platform which employs a cross-time-scale layered regulation and control architecture and comprises an optimization scheduling layer and a cooperative control layer; the optimization scheduling layer generates a multi-time scale scheduling instruction from a second level to a day level based on a multi-target dynamic optimization function; the cooperative control layer receives an instruction of the optimization scheduling layer, and executes real-time electricity-hydrogen-storage-heat cooperative frequency and voltage regulation control through a power balance controller, a heat supply network balance controller and a hydrogen transmission balance controller; the distributed simulation system is used for truly simulating dynamic behaviors of the physical system; and the timing system is used for providing a global clock synchronization signal for the energy management and control platform and the distributed simulation system. According to the method, a high-precision, high-real-time and high-reliability simulation verification means is provided for coal-based chemical green low-carbon transformation, the engineering risk can be remarkably reduced, and the flexibility and economical efficiency of the system are improved.

The application provides a kind of integrated energy system optimization scheduling method based on multi-energy coupling, including the system model of renewable energy, electrolytic cell, methanation equipment, oxygen-enriched combustion heat and power cogeneration unit, carbon capture device, electrolytic molten salt device, ammonia production equipment, thermal power unit and grid-connected interface;Establish the circulation relationship of hydrogen, oxygen, carbon and ammonia: electrolytic cell uses renewable surplus power to electrolyze water to produce hydrogen and oxygen, and oxygen is supplied to oxygen-enriched combustion unit for combustion support;Carbon capture device captures CO2 from the unit and distributes it to methanation equipment and electrolytic molten salt device;Methanation equipment uses hydrogen and CO2 to produce methane for unit fuel;Electrolytic molten salt device decomposes CO2 into solid carbon and oxygen, and oxygen is recycled to the unit;Ammonia production equipment uses hydrogen to produce ammonia, and ammonia is sent to thermal power unit for blending combustion;Establish a carbon quota and emission calculation model containing units, thermal power and purchased power;Build a low-carbon scheduling model with the minimum total operating cost as the target, and solve the optimal output plan of each unit.

The present invention provides a tubular multi-source energy coupling catalytic reactor and system, relating to the technical field of tubular reactors. The reactor includes a transparent inner tube, a transparent outer tube, a first flange, a second flange, a radio frequency feed port, a pull rod, and an inner sleeve. The first flange and the second flange are respectively installed at both ends of the inner tube and the outer tube to form a reaction space. The catalytic reactor is provided with a radio frequency feed port, and the inner circumferential surface of the outer tube is provided with a metal reflective surface, and a light-transmitting hole is provided on the reflective surface for light to pass through and directly illuminate the inner tube, and has the function of shielding and reflecting scattered light; the inner sleeve extends into the inner tube to provide a temperature-sensitive heating tube in the inner sleeve, and a vacuum or low thermal conductivity gas is placed between the inner and outer tubes to reduce the energy dissipation of the system. In this way, by providing the radio frequency feed port, the inner sleeve, and the light-transmitting hole, the above-mentioned reactor can be used to realize independent operation of light, heat, and radio frequency according to the situation, and can also realize catalytic reaction systems such as light-heat, light-radio frequency, and light-heat-radio frequency coupling.

The invention relates to the technical field of natural gas boiler energy scheduling, and discloses a natural gas boiler flue gas white smoke elimination waste heat recovery energy optimization scheduling method. The method comprises the steps that gas-fired boiler flue gas parameters and user side heat energy demand parameters are collected, and the recovery heat threshold value of a first-stage condensation waste heat recovery system and the heat exchange load range of a second-stage white smoke elimination heat exchange system are determined according to the flue gas parameters; a multi-energy coupling scheduling strategy is generated by combining the operation state data and the environment temperature and humidity parameters of the four-pipe air source heat pump unit; according to the strategy, the heat energy supply proportion of the floor heating system and the air conditioner heating system is distributed, and the two-stage system operation mode is dynamically adjusted; and based on the real-time heat energy supply and demand deviation correction scheduling strategy, outputting a final energy scheduling instruction. According to the method, flue gas waste heat can be fully recycled, multi-energy collaborative scheduling and heat energy supply and demand matching are achieved, and the white smoke phenomenon is avoided.

The environment-friendly and energy-saving sewage treatment device comprises a buffer pool, the buffer pool is a pool body of a rectangular structure, one side of the buffer pool is provided with a primary separation pool, the primary separation pool is communicated with the top of the buffer pool, the top of the primary separation pool is provided with a primary separation structure, and the top of the primary separation pool is provided with a secondary separation structure. A kinetic energy power generation treatment system is arranged on one side of the primary separation tank; according to the environment-friendly and energy-saving sewage treatment device, energy self-sufficiency is achieved through the kinetic energy-wind energy dual-mode power generation system, the comprehensive energy utilization efficiency of the sewage treatment power generation system is improved, the energy recovery efficiency is improved by combining energy coupling of the transmission mechanism and intelligent energy storage management, the dual-mode power generation system is compact in structure, and the energy utilization efficiency is improved. The space utilization rate is effectively improved, the power generation complementary energy and the power of power generation can be fed to the separation / dosing process, closed-loop improvement of the treatment efficiency is formed, and the efficient, energy-saving and compact sewage treatment target is achieved.

The invention discloses a solid oxide hydrogen energy technology and chemical high-low energy coupling system. Steam generated by a chemical user is input into a solid oxide electrolytic tank to be electrolyzed to generate hydrogen and oxygen; hydrogen enters the tube bundle gas-liquid-gas generation and conversion device for heat exchange and then is cooled and supplied to a hydrogen user; saturated steam in the high-pressure gas-liquid separation device rises and enters the steam / gas heat exchange device; oxygen enters the steam / gas heat exchange device to exchange heat with saturated steam, and is supplied to an oxygen user after being cooled; the heated steam in the steam / gas heat exchange device enters the solid oxide electrolytic tank to enter the next cycle or enters the steam double-effect lithium bromide unit; cooling water generated by the steam double-effect lithium bromide unit enters a chemical user or is used for cooling oxygen and hydrogen for a hydrogen user and an oxygen user; the system has the advantages that energy gradient utilization and material flow closed circulation are achieved, energy is saved, and the energy utilization efficiency is improved.

The invention provides an energy and carbon emission cooperative operation method for a multi-energy coupling sewage treatment plant. The method comprises the following steps: 1) constructing an objective function of an energy and carbon emission cooperative operation model of the multi-energy coupling sewage treatment plant; 2) constructing a water pump constraint, an air blower constraint, a biogas digester and biogas generator constraint, an adjusting tank, a second-stage water tank and a third-stage water tank constraint and a sewage classification recycling constraint of the multi-energy coupling sewage treatment plant energy and carbon emission cooperative operation model; 3) constructing electricity, water, heat and gas balance constraints of the energy and carbon emission collaborative operation model of the multi-energy coupling sewage treatment plant; and 4) solving the energy and carbon emission collaborative operation model of the multi-energy coupling sewage treatment plant to obtain an energy and carbon emission collaborative operation decision of the sewage treatment plant.

The utility model provides a kind of methanol carbonylation reactor and evaporator energy coupling system, wherein the coupling system includes sequentially connected carbonylation primary reactor and carbonylation secondary reactor, wherein the bottom of the carbonylation primary reactor is provided with stirring paddle, the paddle surface is coated with nano rhodium catalyst coating, the sidewall of the carbonylation primary reactor is provided with jacket type gradient heating device;The inside of the carbonylation secondary reactor is provided with helical rising type deflector, and the deflector surface is provided with micron scale groove structure.The utility model improves the conversion rate and acetic acid yield of methanol carbonylation reaction by optimizing reactor structure, strengthening mass transfer and heat transfer process and realizing high-efficiency energy recovery, while reducing energy consumption.

The invention discloses a multistage enhanced CO2 hydrate method sea water desalination system and method based on LNG cold energy gradient utilization, and belongs to the technical field of sea water desalination, the system comprises the following modules: a cold energy gradient module, which uses LNG cold energy to precool sea water for freezing desalination, and provides cold energy for hydrate generation; the micro-bubble enhanced generation module is used for improving the gas mass transfer efficiency and generating high-purity CO2 hydrate in a stepped manner through two stages of generation chambers; according to the waste heat-flash evaporation decomposition module, the high-purity CO2 hydrate is preheated and decomposed through flue gas waste heat, and then CO2 and fresh water are obtained through instant decomposition through vacuum flash evaporation. According to the multistage enhanced CO2 hydrate method seawater desalination system and method based on LNG cold energy gradient utilization, through cold energy graded utilization, mass transfer enhancement and energy coupling, the fresh water yield is increased, energy consumption is reduced, the CO2 capture rate is increased, and the system and method are suitable for large-scale industrial application.

A hybrid hydrogen production comprehensive energy system multi-time scale optimization scheduling strategy based on hydrogen-electricity-heat multi-energy coupling comprises the following steps that 1, a hydrogen-electricity-heat energy coupling mechanism is analyzed, and a PEM electrolytic bath and gas hydrogen production hybrid hydrogen production model and models of an electric boiler, a hydrogen storage tank, a hydrogen fuel cell, a heat storage device and the like are established; 2, constructing a cost model of the hybrid hydrogen production comprehensive energy system; 3, constructing output constraint and power balance constraint of each device in the hybrid hydrogen production comprehensive energy system; and 4, analyzing load and wind power output characteristics, and establishing a multi-time-scale optimization scheduling model of the hybrid hydrogen production comprehensive energy system. According to the optimization scheduling strategy, by establishing the hybrid hydrogen production model and the multi-time-scale optimization scheduling strategy, the flexibility of hydrogen energy is improved, the system cost error under different time scales is reduced, and the system cost and carbon emission are effectively reduced.

The invention belongs to the field of energy and metallurgy. Specifically, the invention discloses an electrolytic iron system based on multi-energy coupling and a surface topography multi-scale control method. A nano-micro-scale special surface microstructure is constructed on the cathode seed plate through a combined process of laser engraving, sand blasting treatment, anodic dissolution and photovoltaic current pre-coating. And meanwhile, magnetic field ultrasonic microwave multi-physical field enhanced ore phase reconstruction, acidolysis, anodic dissolution, photovoltaic current pre-coating, iron electrolysis and other procedures are adopted, and the reaction performance is improved. In the multi-scale control process of the surface appearance of the electrolytic iron, a multi-energy coupled clean energy supply system is adopted. According to the method, the non-uniform deposition problems such as cracking, blackening and dendritic crystals in the iron electrolysis process can be remarkably inhibited, and the current efficiency and the production stability are improved. The method is suitable for surface morphology regulation and control of pure iron prepared through large-scale continuous iron ore electrolysis, and has the advantages of being high in efficiency, low in energy consumption, free of pollution, ultralow in carbon dioxide emission and the like.

The invention relates to the technical field of luminescent material synthesis. The invention provides a Te-based hybrid halide luminescent material and a preparation method thereof. The luminescent material is of a zero-dimensional organic-inorganic hybrid crystal structure and comprises [TeCl6] < 2-> anions and organic phosphonium cations (C25H21PCl) < + > containing polar substituent groups. The preparation method comprises the following steps: dissolving tellurium dioxide in hydrochloric acid; continuously adding (2-chlorobenzyl) triphenyl phosphonium chloride, and reacting to generate a precipitate; centrifugally separating the precipitate, and drying under a vacuum condition to obtain intermediate powder; dissolving the powder in acetonitrile; and putting the solution into a sample bottle, putting the sample bottle into a sealed container containing diethyl ether, and carrying out solvent diffusion crystallization to obtain the luminescent material. According to the luminescent material, energy coupling and non-radiation loss between luminescent units are reduced, excitation energy can be more sufficiently converted into radiation luminescence, the luminous efficiency is improved, the luminescent material can be better matched with a blue light wave band, and the luminescent material is suitable for application scenes such as high-brightness solid-state illumination and photoelectric display.

According to the system based on carbon dioxide seawater trapping, in the system, a carbon dioxide seawater trapping subsystem directly traps carbon dioxide from seawater; the methanol synthesis subsystem is connected with the carbon dioxide seawater trapping subsystem so as to react hydrogen with carbon dioxide to synthesize methanol; the heat pump subsystem is used for recovering waste heat, improving quality and supplying heat to the low-temperature multi-effect evaporation seawater desalination subsystem; the low-temperature multi-effect evaporation seawater desalination subsystem is connected with the heat pump subsystem and uses waste heat energy as a driving heat source, and at least part of fresh water produced by the seawater desalination subsystem is conveyed to the hydrogen production subsystem to serve as electrolysis raw material water to form a water resource closed loop; the heat pump subsystem forms an energy coupling hub to achieve gradient utilization of waste heat in the hydrogen production and synthesis process to seawater desalination.

The embodiment of the invention discloses a cold energy coupling control method and device of a liquid hydrogen refueling station and electronic equipment. The method comprises the following steps: determining heat exchange efficiency data of each hydrogenation associated device in the liquid hydrogen refueling station; and respectively calculating the cold energy release energy of the liquid hydrogen refueling station in the liquid hydrogen vaporization process and the cold energy use energy of the liquid hydrogen refueling station in the hydrogen filling process based on the preset vaporized liquid hydrogen mass. And the first product value and the cold energy use energy are compared, the working state of a refrigerating unit of the pre-cooling device in the hydrogen filling process is set according to the comparison result, and the hydrogen filling process is pre-cooled based on the cold storage device and the refrigerating unit. According to the embodiment of the invention, through conversion of heat exchange efficiency data, actually available cold energy and cold energy required to be used in a filling process under the condition of consuming liquid hydrogen with the same mass are compared, and the working state of the refrigerating unit is dynamically adjusted according to a comparison result, so that the cold energy generated by vaporization is preferentially consumed, the energy consumption of the refrigerating unit is reduced, and the working efficiency of the refrigerating unit is improved. The pre-cooling energy consumption of hydrogen filling is saved.

An energy coupling closed-loop recovery pressurization system for carbon dioxide phase change fluid is characterized in that an entanglement cavity is communicated with a recovery unit, the recovery unit is communicated with a condensation liquefaction module, a preheater and a high-pressure fluid generation module, and the high-pressure fluid generation module is communicated with the entanglement cavity. Gas is collected and compressed twice by the compression unit, compression heat is supplied to the preheater, the gas is liquefied into liquid by the condensation and liquefaction module, the liquid is heated by the preheater, then the liquid is pressurized by the high-pressure fluid generation module to obtain fluid, and the fluid enters the entanglement cavity and is sprayed as fluid jet flow; compression is divided into two times, compared with one-time compression, energy consumption is reduced, and heating energy consumption of the preheater is also reduced through recycling of compression heat. Therefore, when non-aqueous medium fluid is adopted for fiber web entanglement, the energy consumption of fluid phase state treatment is low, and a heat recycling function is achieved.

The application provides a device and method for separating a mixture of chloromethane and isobutane, comprising an extractive rectification tower, a chloromethane and isobutane mixture feeding port, an extractant feeding port and a chloromethane gas phase outlet arranged on the extractive rectification tower; the extractant fed by the extractant feeding port comprises n-hexane and / or isohexane; a cooler connected with the bottom of the extractive rectification tower; an extractant recovery tower connected with the cooler; an isobutane recovery unit connected with the top of the extractant recovery tower; an extractant recovery tower tank reboiler connected with the bottom of the extractant recovery tower, and an extractant buffer tank connected by a pipeline. The application can separate chloromethane and isobutane and obtain high-purity chloromethane and isobutane by using the above device and a specific kind of extractant; in addition, the device uses energy coupling technology and has low energy consumption.

The application provides a separation and purification system and process for energy coupling variable pressure refining of butylamine, which comprises atmospheric azeotropic distillation of butylamine raw material containing water to separate a first distillate and a first still residue; pressure azeotropic distillation of the first distillate to separate a second distillate and a first target product; refluxing of the second distillate and atmospheric azeotropic distillation with the first still residue and butylamine raw material containing water to separate a third distillate and a third still residue, wherein the third still residue comprises n-butylamine, di-n-butylamine and tri-n-butylamine; distillation of the third still residue to separate a second target product, a third target product and a fourth target product; and the reaction conditions are selected from at least one of the following: a reflux ratio of 1.6-3.0 and a temperature of 43-63 DEG C for the atmospheric azeotropic distillation; and a reflux amount of 535 kg / h-2470 kg / h for the second distillate. The system and process of the application can greatly reduce equipment and operation costs on the basis of obtaining high-purity n-butylamine, di-n-butylamine and tri-n-butylamine products.

The present invention provides a high-temperature carbon capture and in-situ conversion and utilization system and method for gas-steam combined cycle power generation coupled with electrolytic water, including a combined cycle power generation unit subsystem, a carbon capture and in-situ conversion subsystem, and an electrolytic water subsystem. The carbon capture and in-situ conversion subsystem captures carbon from the high-temperature carbon-containing flue gas discharged by the gas turbine power generation unit of the combined cycle power generation unit subsystem and conducts in-situ conversion to obtain target chemical products. The high-temperature decarbonized flue gas and product gas respectively return to the waste heat boiler to drive the steam turbine power generation unit to generate electricity; the hydrogen required for the carbon conversion process is provided by the electrolytic water system; the electric energy of the electrolytic water subsystem is utilized with the valley electricity or green electricity of the power plant, and the oxygen generated by electrolyzing water provides an oxygen-enriched combustion atmosphere for the gas turbine power generation unit. The present invention couples the high-temperature carbon capture and in-situ conversion system with electrolytic water and the gas-steam combined cycle power generation unit for process coupling and energy integration. Through the full-process energy coupling and optimization, it is expected to achieve a disruptive negative carbon technology on the premise of maintaining the existing power generation efficiency of the power plant.