50 results about "Biomass gasification" patented technology

The present application provides a kind of biomass gasification coupling SOEC co-electrolysis system and process of green fuel, the present application is coupled with biomass gasification and solid oxide electrolytic cell (SOEC) co-electrolysis synthesis gas path, with forestry waste biomass as raw material, adopt oxygen-carrying-CO2 adsorption functional material, construct gasification-adsorption integrated and SOEC co-electrolysis deep coupling system;System includes gasification unit, first heat exchange unit, gas purification unit, regeneration oxidation unit, SOEC electrolysis unit and fuel synthesis unit;With wind power, photovoltaic and other green electricity as SOEC electrolysis unit driving energy, integration biomass directional conversion, CO2 in situ capture-function material regeneration cycle, SOEC high temperature co-electrolysis is integrated, rely on heat cascade utilization, achieve system material closed loop reuse;By adjusting the amount of water vapor in the system, obtain specific hydrogen carbon ratio synthesis gas, so as to realize the production of green fuel, whole process saves traditional water gas shift process, improve system energy efficiency, avoid carbon loss, reduce high temperature energy consumption.

The application discloses a cold-heat-electricity-alcohol poly-generation system integrating solar biomass gasification and CO2 capture and resource utilization, which comprises a solar biomass gasification unit, a CO preferential oxidation and purification unit, a CO2 hydrogenation methanol synthesis unit, a fuel cell power generation unit and a waste heat utilization unit; a synthesis gas outlet of the solar biomass gasification unit is connected with an inlet of the CO preferential oxidation and purification unit; a hydrogen-rich gas outlet of the CO preferential oxidation and purification unit is connected with an anode inlet of the fuel cell power generation unit; a CO2 enrichment flow outlet of the CO preferential oxidation and purification unit is connected with a CO2 inlet of the CO2 hydrogenation methanol synthesis unit; and a heat output interface of the fuel cell power generation unit is connected with a heat source inlet of the waste heat utilization unit. The application can realize the collaborative consumption of solar energy and biomass energy, the resource utilization of CO2 capture and the energy cascade recovery, and can simultaneously produce electric energy, cold energy, heat energy and methanol products, and has high comprehensive efficiency and low carbon emission.

The utility model relates to the technical field of biomass gasification furnace, concretely is denitration catalyst modularization drawer type quick -mounting structure, including reaction bin, the front of reaction bin is equipped with a plurality of drawer grooves, the inside of reaction bin is provided with a plurality of reaction cavities, and the drawer groove is located in the reaction cavity, the top of drawer groove is provided with the opening, and the reaction cavity sprays ammonia gas through ammonia gas spraying pipeline, and a row of reaction cavities are connected in series through the connecting channel. In the denitration catalyst modularization drawer type quick -mounting structure, adopt drawer type structure design, and the catalyst module can be directly pulled through the handle, and quick locking and unlocking are realized in combination with magnetic attraction piece, and it is not necessary to need complex tool and large -area to dismantle reactor, and the maintenance time and manpower cost are significantly shortened. For example, the catalyst replacement needs several hours and many people cooperation in the comparative file, and a single person can complete the replacement of single module in a few minutes.

This invention discloses a method for preparing a biomass gasification adsorption-enhanced reforming hydrogen production catalyst, belonging to the fields of catalyst preparation and biomass thermal conversion technology. The catalyst of this invention uses CeO2 as a high-content support and Ni and Fe as active components. The method employs a co-impregnation method to simultaneously load a nickel active phase precursor and an iron co-catalytic precursor onto the support surface; after drying, the precursor powder is placed under an inert atmosphere and processed according to the following relationship... T ×0.01+ t By calcining at a temperature T of 10°C with a time t in a complementary correlation, a composite catalytic system with strong interactions is constructed. This invention also provides the application of the above catalyst in combination with a calcium-based adsorbent in biomass adsorption-enhanced reforming for hydrogen production. This invention enhances the catalyst's resistance to carbon deposition by regulating the bimetallic electronic structure and the oxygen storage and release capacity of the support. Simultaneously, by combining a segmented temperature control process, it achieves kinetic synergy between in-situ CO2 capture and catalytic reforming, significantly increasing the green hydrogen content in the syngas.

The application relates to a biomass gasification device and relates to the technical field of biomass gasification, which comprises a gasification hearth, a fluidized bed is arranged in the gasification hearth, a bubbling bed is arranged in the gasification hearth, a biomass gasification area is arranged between the bubbling bed and the fluidized bed, and the biomass gasification area is used for making biomass stack combustion; the bubbling bed is located at the upper end of the biomass gasification area, a feeding device is arranged on the gasification hearth, an air inlet pipe is arranged on the gasification hearth, the air inlet pipe is used for blowing air into the fluidized bed, the air inlet pipe is used for making fuel in the biomass gasification area tumble, the air inlet pipe is used for blowing the fuel which is not fully combusted on the fluidized bed to the bubbling bed, a cyclone separator is arranged on the upper portion of the gasification hearth, the cyclone separator outputs relatively clean combustible gas after carrying out gas-solid separation on dust-containing combustible gas, the cyclone separator is used for inputting the fuel which is not fully combusted into the bubbling bed, and an ignition device is arranged on the bubbling bed and the fluidized bed. The application has the effect of fully gasifying biomass fuel.

The application discloses a biomass gasification composite additive of red mud and coal ash, a preparation method and application thereof, and relates to the technical field of biomass gasification and industrial solid waste resource utilization. The raw material of the biomass gasification composite additive comprises a mineral component, the mineral component adopts high-iron red mud and / or high-aluminum coal ash, the oxides in the high-iron red mud include Fe2O3, Al2O3, SiO2 and CaO, and the mass fraction of Fe2O3 is 60-80%; the oxides in the high-aluminum coal ash include SiO2 and Al2O3, and the total mass fraction of SiO2 and Al2O3 is 80-95%; the high-iron red mud is mixed with the high-aluminum coal ash in a set ratio after drying treatment, and is sent into a gasification furnace gasification area together with corn stalks through a conveying device. The application not only effectively improves the ash melting characteristics in the biomass gasification process, but also realizes the resource utilization of the red mud and industrial solid wastes such as coal ash, and has good engineering application value.

This application relates to the field of industrial control technology, specifically to a method, equipment, medium, and product prediction method for a gasification reactor. The method, based on experimental datasets of biomass gasification processes and a particle swarm optimization algorithm, optimizes a pre-set gasification mechanism model to determine target limiting temperature parameters under various operating conditions. Then, based on the mapping datasets corresponding to each operating condition and the corresponding target limiting temperature parameters, the machine learning model is iteratively trained to obtain a trained limiting temperature prediction model. This limiting temperature prediction model then predicts the corresponding limiting temperature parameters based on the current gasification condition parameters and updates the gasification mechanism model. Based on the updated gasification mechanism model, the method predicts the syngas product composition information corresponding to the current gasification condition, thereby improving the accuracy and efficiency of predicting the syngas composition of the gasification reactor.

The utility model relates to the technical field of picking instrument, provide a device for the storage and transportation of biomass gasification corn straw, including stock bin, four screw feeder, blanking tube, baffle door, material plug screw feeder and unpowered pipe, the stock bin is installed on the furnace front steel frame, the material conveying belt is set up above the stock bin, four screw feeder is connected below the stock bin through four screw feeder feed inlet, blanking tube is set below four screw feeder, material plug screw feeder is installed below blanking tube, baffle door is set between blanking tube and material plug screw feeder, material plug screw feeder discharge gate is connected with unpowered pipe, unpowered pipe is connected with furnace, avoid raw material feed inlet air suction.

This invention relates to a biomass gasification system and method with dust removal function, including a gasifier, a burner, a raw material supply module, and a dust collection device. The raw material supply module is used to transport pulverized green waste or other biomass raw materials to the gasifier for gasification to generate biomass fuel gas. The inlet of the dust collection device is located near the outlet of the raw material supply module, and is used to extract dust entrained during the process of the raw material falling into the gasifier. The dust includes sawdust, glue fragments, and other lightweight combustible particles. The outlet of the dust collection device is connected to the oxygen supply path of the burner, and is used to introduce the dust into the burner to mix and burn with the biomass fuel gas. This invention, by constructing a closed-loop path of "dust extraction-reburning," can significantly reduce coking in the gasifier, improve gasification efficiency and burner temperature rise rate, achieve efficient recovery and utilization of dust energy, and enhance the overall operational stability and thermal output efficiency of the system.

The application provides a tunnel type circulating mobile pyrolysis furnace, which comprises a heating annular furnace, a track is arranged in the lower part of the interior of the heating annular furnace, a plurality of sequentially connected pyrolysis cages matched with the track are arranged on the track, a feeding device and a discharging device are respectively arranged in the upper part and the lower part of the heating annular furnace, and the feeding device and the discharging device are respectively communicated with the interior of the heating annular furnace; the application has good air tightness, realizes complete gasification of biomass and continuous production, efficiently removes tar and ash, and can be applied to large-scale industrialization to efficiently pyrolyze biomass into CO and H2 for synthesizing green methanol, realizes a multi-generation energy system taking biomass gasification as the core, can jointly produce methanol, fuel gas, heat energy and electric energy, improves the overall economy of the system, simplifies the production process of a single product, reduces the total investment, and simultaneously reduces pollutant emission.

The application relates to the technical field of SAF preparation, in particular to a biomass gasification SAF preparation process and device, which comprises a gasification furnace, a condensing device, an SAF synthesizing device, a hydrogenation isomerization device, an SAF separating device, an electrolytic water device and a waste heat power generation device. The method produces synthesis gas by gasifying biomass particles through a double-flow fluidized bed gasification furnace, produces hydrogen and oxygen by driving an electrolytic water hydrogen production device through renewable energy, provides oxygen to the gasification furnace, generates crude SAF by one-step F-T reaction of the synthesis gas and the hydrogen, and generates qualified SAF and biodiesel by hydrogenation isomerization and separation. The hydrogen produced by electrolytic water can be liquefied and stored through a liquid hydrogen device, hydrogen is supplemented according to the renewable energy condition, and the stability of hydrogen supply is adjusted. The method has the characteristics of simple process flow, low device operation energy consumption, good economy and the like, and has the advantages of liquid hydrogen energy storage and renewable energy fluctuation adaptation.

The present application relates to the field of functional materials, energy conversion and environmental protection technology, and more particularly to a biomass baking-gasification chemical chain water circulation hydrogen production method, which is used for biomass resource cascade utilization and hydrogen-rich syngas production. In the baking stage, the catalyst is mixed with biomass to absorb the moisture therein and release and utilize the moisture in the gasification process. The present application provides a new type of metal-support catalyst, the metal active phase of which mainly includes Ce-Mn, Ce-Zr, Mn-Zr and other bimetallic and multimetallic materials, and the support is CaO. The catalyst includes a CaO support and active metal particles dispersed on the support, the active metal particles are dispersed on the surface of the CaO support by embedding, the doping of the metal is conducive to the formation of oxygen vacancies, increases the electron cloud density, reduces the valence electron energy level, and makes the catalyst have excellent hydrogen production performance and stability in the cyclic adsorption of H2O and CO2. The abundant oxygen vacancies provide active sites for the adsorption and dissociation of H2O in biomass, and promote the hydrogen production from biomass gasification.

This invention discloses a variable oxygen purity air separation system and dynamic optimization method for biomass gasification. The system includes an air pretreatment unit, a pressure swing adsorption (PSA) unit, a membrane separation unit, and a secondary PSA-mixing adjustment unit. It obtains oxygen of different purities by coupling adsorption and membrane separation of air. The operating parameters of each unit in the system are dynamically adjusted according to the actual needs of biomass gasification, which can flexibly adjust the oxygen purity within a wide range. This improves the efficiency and flexibility of biomass gasification, reduces energy consumption and operating costs, and meets the oxygen purity requirements of different biomass feedstocks and different gasification targets.

The utility model discloses a kind of biomass gasification raw material integrated grinding, crushing and baking carbonization system, the system includes storage bin 10, coal mill 20, heating cone 21, air pipe 30, baking pipe 40, dynamic-static separator 50, back powder pipe 60, filter 70 and pulverized coal storage tank 80, wherein coal mill 20 includes heating cone 21, heating cone 21 is arranged the first air inlet of air pipe 30, hot air input by air pipe 30 heats biomass gasification raw material, coal mill 20 further includes grinding area, biomass gasification raw material enters grinding area under centrifugal action and hot air action at heating cone 21, grinding area is arranged the second air inlet of air pipe 30, and input hot air sends in baking pipe 40 after the biomass powder of grinding.The system provided by the utility model embodiment is used, high-temperature carbonization and grinding are coupled to biomass material in the circulation process of the system, and the problem that the grinding output is too low under conventional operating temperature is solved.

This invention belongs to the field of fly ash treatment technology, specifically disclosing an atomizing and wetting device and method for biomass gasification tar-containing fly ash. The device includes a water tank, a reagent supply system, a humidifying and stirring mechanism, an atomizing spraying mechanism, and a fly ash feeder. The reagent supply system is used to add surfactants and defoamers to the water tank. The atomizing spraying mechanism includes a humidifying pump and multiple atomizing nozzles, which are disposed within the housing of the humidifying and stirring mechanism and arranged in segments along the axial direction of the spiral conveying mechanism. This invention achieves rapid wetting of fly ash by adding surfactants to demineralized water; simultaneously, the multi-row atomizing nozzles arranged in segments along the axial direction of the humidifying and stirring mechanism enable multi-point, diffuse humidification of the fly ash, and combined with forced stirring and conveying by the spiral conveying mechanism, allow the droplets and fly ash to fully and uniformly contact and mix, achieving a stable fly ash wetting effect.

The application discloses a catalyst for biomass gasification hydrogen production, a preparation method of the catalyst and a hydrogen production method. The preparation method comprises the following steps: uniformly mixing a doping component A and a doping component B to obtain a material flow I; adding an anionic surfactant and a first precipitator into a calcium salt solution, controlling the pH of the system to be 8-9, and then uniformly mixing at 40-60 DEG C to obtain a material flow II; adding the material flow I, a second precipitator and a third precipitator into the material flow II, uniformly mixing at 70-80 DEG C to obtain a material flow III, and further performing heat treatment to obtain the catalyst. The application also provides the catalyst prepared by the above method and a hydrogen production method by biomass gasification. The application overcomes the densification problem of the adsorption and desorption process of the conventional calcium-based absorbent, and further realizes the double goals of biomass production of high-quality hydrogen and recycling of the calcium-based absorbent through matching of the double fluidized bed process.

The utility model relates to the technical field of gasification boiler, concretely is a kind of biomass gasification boiler, including boiler main body, cloth distribution disc, driving mechanism, harrowing mechanism and rotating mechanism;The top of boiler main body is connected with feed hopper, and the top of boiler main body is fixedly connected with mounting box;Cloth distribution disc is movably arranged in the inside of boiler main body, and the inside of boiler main body is fixedly connected with support ring, and cloth distribution disc is rotatably connected with support ring, and cloth distribution disc is penetrated and is provided with multiple discharge holes;Driving mechanism is arranged on mounting box, and driving mechanism is connected with cloth distribution disc for driving cloth distribution disc to move;Harrowing mechanism is arranged in the inside of boiler main body;Rotating mechanism is arranged in mounting box.The utility model is cooperated by cloth distribution disc, driving mechanism, harrowing mechanism and rotating mechanism, and biomass raw material is evenly distributed to boiler main body, which is beneficial to improve the full reaction of biomass raw material in boiler main body, and further improve the utilization of biomass raw material.

The biomass gasification and waste incineration coupled combustion system relates to the field of biomass waste gasification disposal, and the first combustion chamber, the throat area and the second combustion chamber of the waste incineration device are sequentially arranged from bottom to top and are communicated, the upper end of the second combustion chamber is provided with a flue gas outlet capable of supplying flue gas to a chimney, the first burner unit is opposite to the first combustion chamber, and the second burner unit is opposite to the throat area; the flue gas recirculation system has a circulating inlet communicated with the flue gas outlet, a first circulating outlet and a second circulating outlet communicated with the first combustion chamber; the reaction cavity and the gasification gas outlet of the biomass gasification device are communicated, the reaction cavity comprises a redox area, the gasification gas outlet is communicated with the fuel inlet of the first burner unit and the fuel inlet of the second burner unit, and the flue gas inlet pipe is communicated with the redox area and the second circulating outlet at both ends; the biomass gasification and waste incineration are deeply coupled and complementarily utilized, the biomass gasification efficiency is improved, the nitrogen oxide emission is reduced, and the cost is reduced.

The application discloses a solar energy coupled biomass gasification and chemical chain combustion SOFC combined cooling, heat and power system in the technical field of distributed energy, which comprises a solar energy assisted biomass gasification subsystem, an SOFC power generation subsystem, a supercritical carbon dioxide power cycle subsystem, a chemical chain combustion subsystem and a refrigeration and heat supply subsystem; the system collects solar energy, and the gasification agent, biomass and the gasification agent are reacted to generate synthetic gas for the SOFC power generation subsystem to generate power; the SOFC anode tail gas enters the chemical chain combustion subsystem to perform flameless oxidation and release heat, the high-grade heat released drives the supercritical carbon dioxide power cycle subsystem to perform cascade power generation, and the remaining low-grade waste heat is recycled by the refrigeration and heat supply subsystem to realize the collaborative output of cold, heat and power. The application improves the comprehensive energy efficiency of the system through multi-energy complementation and energy cascade utilization, and realizes carbon dioxide enrichment in the chemical chain combustion subsystem.

This invention discloses a method and apparatus for producing syngas from biomass gasification via high-temperature thermal reforming, belonging to the technical field of biomass gasification. The apparatus includes a high-temperature thermal reforming reactor, a heat exchanger, a waste liquid collector, a crude syngas scrubbing tower, and a gas-liquid separator. The interior of the high-temperature thermal reforming reactor is divided into a stepwise combustion zone, a high-temperature reduction zone, and an ash collection zone from top to bottom. Crude gas is added from the top of the high-temperature thermal reforming reactor and subsequently undergoes combustion and reforming reactions in the stepwise combustion zone and the high-temperature reforming zone, converting CH4 and tar into CO and H2. The lower part of the high-temperature thermal reforming reactor is the ash collection zone, which is connected to the heat exchanger via a gas outlet. The heat exchanger is connected to the crude syngas scrubbing tower, and the crude syngas scrubbing tower is connected to the gas-liquid separator. Waste liquid from both the crude syngas scrubbing tower and the gas-liquid separator is discharged into the waste liquid collector. This invention solves the problems of high methane content and difficult tar treatment in biomass gasification products.

This utility model relates to the technical field of ash removal devices, and discloses an ash removal device for a biomass gasification furnace gas pipe. It includes an installation cylinder, inside which is a motor bracket. A motor is mounted on one side of the motor bracket, and the motor is fixedly connected to an output gear. The output gear drives one end of multiple gear rods, and the other end of the gear rods drives an input gear. The input gear is fixedly connected to one end of a ball sleeve, which is rotatably connected to an outer bracket. A ball cage is located inside the ball sleeve, and the ball cage is fixedly connected to a universal joint. The universal joint is slidably connected to a worm gear, which is rotatably connected to a fixed frame. The worm gear drives a roller, and the fixed frame is slidably connected to a sliding sleeve. The sliding sleeve is slidably connected to a linkage plate, and a spring is located on one side of the linkage plate. The linkage plate is slidably connected to a base. This device effectively solves the problem of loosening, wear, or breakage at the connection point, and simultaneously automatically conforms to the inner wall of the pipe before and after cleaning, maintaining good friction with the inner wall of the pipe, thus achieving a more effective cleaning effect.

This invention relates to the field of power grid planning technology and discloses a planning method and system for rural integrated energy networks that considers dynamic load allocation. It establishes a dynamic load allocation matrix for rural integrated energy networks at different time granularities, enabling flexible adjustment of the output ratio of different equipment based on seasonal, monthly, or even daily load fluctuations. This completely solves the energy waste caused by structural mismatch between supply and demand. Based on the energy input-side equipment, energy conversion-side equipment, energy storage-side equipment, auxiliary equipment, and biomass gasification system of the rural integrated energy network, an objective function is established to maximize primary energy savings, carbon dioxide emission reduction, and annual total operating cost reduction. Equipment performance constraints, energy balance constraints, and planning area constraints are also established. This enables organic coordination and multi-energy complementarity among different energy sources, thereby improving rural energy utilization efficiency and reducing carbon emissions and operating costs.

The present application relates to a kind of biomass gasification fuel production process, comprising the following steps, dry biomass powder is sent into low pressure bunker;Make biomass powder from low pressure bunker into lock hopper;Make the biomass powder in lock hopper into feed bin;Biomass powder and conveying gas into gas flow bed system are reacted with the oxygen admitted and converted into crude synthesis gas;Crude synthesis gas sent from gas flow bed system is admitted into synthesis gas purification system and is purified to obtain the required synthesis gas for fuel;Part of synthesis gas sent from synthesis gas purification system is sent into reaction system to prepare the required fuel product.Conveying gas uses synthesis gas or reaction tail gas or the mixed gas of above two, pressurized gas uses reaction tail gas or carbon dioxide gas after decarburization, low pressure bunker sealing gas uses carbon dioxide gas after decarburization or nitrogen or the mixed gas of two.The present application saves a lot of compression work and heat source and recovers effective component in reaction system tail gas, reduces raw material consumption, improves economic benefit.

This invention discloses a system and method for producing green methanol from biomass gasification using magnesium-based solid-state hydrogen storage, belonging to the field of biomass gasification for green methanol production technology. The system includes: agricultural and forestry waste biomass raw materials, wind and solar new energy / fluctuating green electricity, a wide-power water electrolysis hydrogen production device, an atmospheric / medium-pressure pure oxygen buffer tank, a magnesium-based solid-state hydrogen storage device, an HT-TES (hydrogenation system), a biomass gasification furnace, a high-temperature steam generator, a high-temperature syngas waste heat exchanger, a syngas purification and methanol synthesis unit, and a liquid methanol product storage and transportation tank. This invention fully utilizes continuous and intermittent waste heat in a tiered manner, reducing the energy consumption of gasification and the electricity consumption of magnesium-based dehydrogenation; magnesium-based solid-state hydrogen storage reduces the safety costs and land occupation of high-pressure explosion-proof spherical tanks; it adapts to the fluctuating characteristics of green electricity, reducing waste electricity; it can relatively accurately control the C-H ratio of methanol synthesis, improving the purity and yield of the product, and has certain economic and engineering practicality.

This invention discloses a method for removing ammonia from crude fuel gas using dielectric barrier discharge plasma. The method includes the following steps: NO is added to NH3-containing crude fuel gas obtained from biomass gasification after dust removal. After thorough mixing in a gas mixer, the mixture enters a plasma reactor. In the plasma reactor at 200℃–450℃, NO and the NH3-containing crude fuel gas react under plasma activation, converting NH3 and NO into N2, H2O, and H2, thereby removing ammonia from the crude fuel gas. Furthermore, the added NO is consumed during NH3 removal, avoiding additional pollutants. Moreover, this method does not introduce a catalyst, reducing costs and avoiding low reaction stability caused by catalyst deactivation, enabling long-term stable operation of the equipment.

The application discloses a supported molten alloy catalyst for biomass gasification and a preparation method and application thereof, and belongs to the technical field of biomass energy conversion and catalysts. The catalyst comprises a porous carrier and a molten alloy active component in the form of nano-droplets loaded on the surface and in the pores of the carrier. The molten alloy active component comprises a molten catalytic metal and a molten metal additive. The molten catalytic metal is selected from one or more of Ni, Mo and Cr, and the molten metal additive is Bi. During preparation, citric acid is added to a solution of metal salts corresponding to the molten catalytic metal and the molten metal additive, and the solution is stirred uniformly. An equal volume of the obtained precursor solution is loaded on a pretreated porous carrier by using an equal-volume impregnation method. Finally, the loaded catalyst is subjected to staged heating in a reducing atmosphere. The obtained supported molten alloy catalyst has a large specific surface area, can maintain a molten state at high temperatures, is highly dispersed, and has excellent carbon deposition resistance, sintering resistance and catalytic stability.

The present disclosure relates to an integrated plant for production of renewable hydrogen and biomethane, comprising a biomass gasification unit configured to convert organic feedstock into product gas; a methanation unit coupled to the biomass gasification unit to process product gas and produce biomethane; an electrolysis unit configured to produce renewable hydrogen from water using renewable energy sources with more energy efficiency conversion; a gas storage unit for the safe storage of biomethane and renewable hydrogen; and a control unit for optimizing energy usage, gas flow, and overall process efficiency, increasing the energy efficiency of gasification, by low and medium enthalpy energy recovery for pre-treatment biomass, wherein the biomethane and renewable hydrogen are combined in a fuel cell conversion unit to generate clean water as a by-product. The oxygen produced by electrolysis is supplied to the gasification unit, the thermal energy recovered from the internal process units is used to preheat the electrolysis feed water, and the water produced by the fuel cell conversion is recovered and reused for electrolysis, thus forming closed internal cycles of mass and energy flows. The integrated facility offers an efficient and flexible solution for the production and use of renewable hydrogen and biomethane.