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Resultados 73 resultados LastUpdate Última actualización 19/10/2021 [22:57:00] pdf PDF xls XLS

Publicaciones de solicitudes de patente de los últimos 60 días/Applications published in the last 60 days



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RENEWABLE ENERGY HYDROCARBON PROCESSING METHOD AND PLANT

NºPublicación: WO2021203176A1 14/10/2021

Solicitante:

WOODSIDE ENERGY TECHNOLOGIES PTY LTD [AU]

Resumen de: WO2021203176A1

A method and plant uses one or more renewable energy sources to facilitate the processing of a hydrocarbon to produce hydrogen, syngas or other products. One renewable energy source is solar energy. The solar energy may be harnessed by (a) directly heating a thermal storage medium by way of a concentrated solar thermal (CST) plant; (b) converting the solar energy using photovoltaic cells to produce electricity and using the electricity to heat the thermal storage medium, or (c) a combination of both, or (d) converting the solar energy using photovoltaic cells to produce electricity and using the electricity to heat a reactor by way of resistive or inductive heating. The thermal storage medium, when used, is arranged to store enough thermal energy to enable 24-hours a day processing of the hydrocarbon. Electricity derived from PV cells, or from other renewable energy powered generators or converters may be used, directly, or via a battery, to provide or enable the production of heat to continue the processing when, for example due to inclement weather for an extended period, radiant energy from the sun by itself would otherwise be insufficient to do so, thus also provide 24 hours per day processing.

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ENGINEERING CATALYTICAL ELECTRODES FOR APPLICATIONS IN ENERGY AREAS

NºPublicación: US2021317586A1 14/10/2021

Solicitante:

L LIVERMORE NAT SECURITY LLC [US]

Resumen de: US2021317586A1

An ink formulation and electrode that enhances hydrogen production, oxygen production, carbon dioxide reduction and other electrocatalytic reactions. Embodiments include an ink formulation with polymer binders having different catalytical precursors and a 3D electrode produced by additive manufacturing from the inventor's ink formulation. Various embodiments of the inventor's apparatus, systems, and methods provide inks that that are 3D-printed into patterns that optimize surface area and flow. The catalytic materials are imbedded into the ink matrix which is then printed into a 3D structure that has architecture that optimizes surface area and flow properties.

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SYSTEM FOR UTILIZING WASTE HEAT DURING HYDROGEN PRODUCTION BY WATER ELECTROLYSIS, AND WORKING METHOD THEREFOR

NºPublicación: WO2021203665A1 14/10/2021

Solicitante:

HUANENG CLEAN ENERGY RES INST [CN]

CN_111336571_A

Resumen de: WO2021203665A1

The present invention relates to the technical field of hydrogen production by water electrolysis, and disclosed are a system for utilizing waste heat during hydrogen production by water electrolysis, and a working method therefor, comprising a water electrolysis hydrogen production system, a membrane distillation system, a heat consumer heating system, and a circulation cooling system. The waste heat generated during hydrogen production by water electrolysis serves as a heat source of a membrane distillation process to produce water supplemented for the water electrolysis hydrogen production system, thereby saving the heating energy consumption in the membrane distillation process. Compared with conventional water production systems, the energy consumption of water production of the membrane distillation system is lower. By means of a waste heat gradient utilization mode, waste heat still exists in circulating water which has been used to heat membrane distillation raw water, and the waste heat can be used for winter heating for heat consumers such as water electrolysis hydrogen production workshops or containers, thereby meeting temperature requirements of a space where the hydrogen production system is located; by means of the gradient utilization of the waste heat, the energy utilization efficiency of the whole water electrolysis hydrogen production system is improved. The system is reasonable in design, gradient and comprehensive utilization is carried out on the waste h

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HYDROGEN PRODUCTION SYSTEM FOR INTERNAL COMBUSTION ENGINES

NºPublicación: US2021317802A1 14/10/2021

Solicitante:

MILLER DAVID D [US]

Resumen de: US2021317802A1

The hydrogen production system for internal combustion engines includes an intake air scoop, a vacuum block having an air input port system for receiving air from the intake air scoop, a water reservoir connected to the vacuum block for providing water to be mixed with the air in the vacuum block, at least one primary generator assembly with an inlet port for receiving the air/water vapor mixture from the vacuum block and producing a mixture of hydrogen, produced oxygen, and fine hydrogen production vapor from a partially oxidized water fog, and a plurality of secondary hydrogen generator assemblies connected to the primary generator assembly for receiving this mixture. The engine vacuum draws this mixture into the intake manifold to provide an ideal fuel mixture for the engine.

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METHOD AND APPARATUS FOR DE-IONIZING THE SUPPLY WATER OF A PEM CELL

NºPublicación: EP3892758A1 13/10/2021

Solicitante:

MICROPROGEL SRL [IT]

Resumen de: EP3892758A1

A method is described for feeding a PEM cell (12) of an apparatus (10) to produce hydrogen by separating water molecules into oxygen and hydrogen molecules. For this purpose, a pressure buildup of oxygen generated by the PEM cell is created and a force is generated with such pressure to push the feed water through a de-ionizing material or means.

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HYDROGEN COMPRESSION SYSTEM

NºPublicación: EP3892757A1 13/10/2021

Solicitante:

PANASONIC IP MAN CO LTD [JP]

US_2020340457_A1

Resumen de: EP3892757A1

A hydrogen pressurization system includes: an electrochemical hydrogen pump being configured to transfer hydrogen in a hydrogen-containing gas to be supplied to an anode to a cathode through an electrolyte membrane, and pressurize the hydrogen; and a first removal unit through which an off-gas discharged from the cathode of the electrochemical hydrogen pump and the hydrogen-containing gas to be supplied to the anode flow with a water permeable membrane interposed therebetween, the first removal unit being configured to remove at least one of water vapor and water liquid contained in the off-gas.

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GAS TO OLEFINS PROCESS WITH COPRODUCTION OF HYDROGEN TOGETHER WITH ELECTRIFIED REACTIONAL SECTION

NºPublicación: WO2021198175A1 07/10/2021

Solicitante:

TOTAL SE [FR]
SULZER MANAGEMENT AG [CH]

Resumen de: WO2021198175A1

The present disclosure relates in its first aspect to a process of conversion of a stream comprising methane into chemicals, said process being remarkable in that it comprises the steps of providing a first stream (1, 5, 11, 15) comprising methane, providing a second stream (69) which is a hydrogen bromide-rich stream, putting into contact said first stream (15) with said second stream (69) under electrolytic bromination conditions to obtain a hydrogen stream (75) and a third stream (21) comprising at least unreacted methane, unreacted hydrogen bromide, methyl bromide and dibromomethane, and removing said dibromomethane from said third stream (21), to produce a dibromomethane stream (103) and a fourth stream (27) comprising unreacted methane, methyl bromide and unreacted hydrogen bromide; wherein the fourth stream (27) is converted into chemicals. In its second aspect, the present disclosure concerns an installation for carrying out the process of the first aspect.

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GAS TO OLEFINS PROCESS WITH COPRODUCTION OF HYDROGEN TOGETHER WITH HEAT INTEGRATION PROCESS

NºPublicación: WO2021198166A1 07/10/2021

Solicitante:

TOTAL SE [FR]
SULZER MANAGEMENT AG [CH]

Resumen de: WO2021198166A1

The present disclosure relates in its first aspect to a process for converting a stream comprising methane into chemicals, said process is remarkable in that it comprises the steps of providing a first stream (1, 5, 11) comprising methane, providing a second stream (79) which is a bromine-rich stream, putting into contact said first stream (15) with said second stream (79) to obtain a third stream (21) comprising at least unreacted methane, methyl bromide, dibromomethane, and hydrogen bromide, removing said dibromomethane from said third stream (21), to produce a dibromomethane stream (103) and a fourth stream (27) comprising unreacted methane, methyl bromide and hydrogen bromide which is converted into chemicals, and separating hydrogen bromide said fourth stream (27), to provide a hydrogen bromide-rich stream. In its second aspect, the present disclosure concerns an installation for carrying out the process of the first aspect.

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PROCESS FOR PRODUCING A SYNTHETIC FUEL AND SYSTEM FOR PERFORMING SUCH A PROCESS

NºPublicación: WO2021197707A1 07/10/2021

Solicitante:

FORSCHUNGSZENTRUM JUELICH GMBH [DE]

DE_102020109448_A1

Resumen de: WO2021197707A1

The present invention relates to a process for producing a synthetic fuel, comprising the steps of: a) splitting water (H2O) into oxygen (O2) and hydrogen (H2) using an electrolyser (2); b) producing a biogas comprising methane (CH4) and carbon dioxide (CO2) using a biogas plant (6); c) producing power and/or heat in a gas combustion plant (8) using biogas (CH4, CO2) produced in the biogas plant (6) and oxygen (O2) obtained from the electrolysis; d) treating the offgas including water (H2O) and carbon dioxide (CO2) that leaves the gas combustion plant (8) in such a way that water (H2O) is at least partly removed therefrom, especially by means of condensation; and e) producing synthetic fuel in a fuel synthesis plant (15) using carbon dioxide (CO2) obtained from the offgas from the gas combustion plant (8) and hydrogen (H2) obtained from the electrolysis. The invention further relates to a system (1) for performing the process.

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APPARATUS AND METHOD FOR PRODUCING HYDROGEN AND OXYGEN GAS MIXTURE BY ELECTROLYSIS

NºPublicación: WO2021198728A1 07/10/2021

Solicitante:

H2 ENERGY SYSTEMS PUBLIC COMPANY LTD [CY]

Resumen de: WO2021198728A1

An apparatus for producing a hydrogen (H2) and oxygen (O2) gas mixture by electrolysis that can be coupled with an internal combustion engine (ICE) includes a water tank, a water supply system, an electrolyte supply, an electrolysis cell, and a power supply. The water supply system and the electrolyte supply are coupled to the water tank. The backfire preventer, hydrogen leak detectors, one-way safety valves and the pressure-resistant, double-wall tubes are used in order to reduce possible safety issues. The gas mixture produced by the apparatus is mixed with air in the air inlet of the ICE and co-combusts with the pre-existing hydrocarbons in the combustion chamber in order to reduce fuel consumption and emissions, thus increasing the performance of the ICE.

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ELECTROLYTIC ELEMENT FOR ALKALINE WATER ELECTROLYSIS, AND ALKALINE WATER ELECTROLYSIS VESSEL

NºPublicación: WO2021200372A1 07/10/2021

Solicitante:

TOKUYAMA CORP [JP]

Resumen de: WO2021200372A1

This electrolytic element for alkaline water electrolysis comprises: an electroconductive partition wall having a first surface and a second surface; an anode for oxygen generation; a cathode for hydrogen generation; a first connection means for fixing the anode to the partition wall and electrically connecting the anode to the partition wall such that the anode faces the first surface of the partition wall with a first interval therebetween; an electroconductive elastic body which supports the cathode; and a cathode current collector which supports the elastic body. The cathode current collector is fixed to the partition wall so as to face the second surface of the partition wall with a second interval therebetween, and is electrically connected to the partition wall. The first connection means includes an electroconductive bolt having at least a shaft part, and the anode is detachably fixed to the partition wall via the electroconductive bolt.

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HYDROCARBON PRODUCTION SYSTEM

NºPublicación: WO2021201192A1 07/10/2021

Solicitante:

OSAKA GAS CO LTD [JP]

Resumen de: WO2021201192A1

This hydrocarbon production system (100), by which hydrogen and carbon monoxide required for hydrocarbon synthesis are secured using water and carbon dioxide as raw materials and hydrocarbon containing high-calorie gas can be efficiently produced, is obtained. The hydrocarbon production system comprises: an electrolytic reaction unit (10) which converts water and carbon dioxide into hydrogen and carbon monoxide through an electrolytic reaction; a catalytic reaction unit (30) which converts a product produced in the electrolytic reaction unit (10) into hydrocarbon through a catalytic reaction; and branch paths (41) and (51) which branch some of outlet components of the catalytic reaction unit (30).

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OFFSHORE WIND POWER HYDROGEN PRODUCTION SYSTEM AND METHOD BASED ON ELECTRO-ADSORPTION DESALINATION TECHNOLOGY

NºPublicación: WO2021197308A1 07/10/2021

Solicitante:

HUANENG CLEAN ENERGY RES INST [CN]

CN_111270257_A

Resumen de: WO2021197308A1

Disclosed are an offshore wind power hydrogen production system and method based on electro-adsorption desalination technology. An output end of an offshore wind power plant (1) is connected to an input end of a power divider (2), an output end of the power divider (2) is connected to input ends of a power grid (3) and an AC/DC rectifier (4), an output end of the AC/DC rectifier (4) is connected to a power interface of an electrolytic hydrogen production device (5), a hydrogen outlet of the electrolytic hydrogen production device (5) is in communication with a hydrogen storage system, an oxygen outlet of the electrolytic hydrogen production device (5) is in communication with an inlet of an oxygen separator (8), an oxygen outlet of the oxygen separator (8) is in communication with an oxygen storage tank (9), a water outlet of the oxygen separator (8) is in communication with an inlet of a water drainage storage tank (12), an outlet of the water drainage storage tank (12) and a seawater input pipeline are in communication with an inlet of an electro-adsorption desalination device (13), an outlet of the electro-adsorption desalination device (13) is in communication with an inlet of a water replenishing storage tank (14), and an outlet of the water replenishing storage tank (14) is in communication with an inlet of the electrolytic hydrogen production device (5). By means of the system and method, seawater desalination can be combined with electrolytic hydrogen production to re

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WIDE-POWER HYDROGEN PRODUCTION SYSTEM AND METHOD BY ELECTROLYSIS OF WATER

NºPublicación: WO2021196564A1 07/10/2021

Solicitante:

HUANENG CLEAN ENERGY RES INST [CN]

CN_111364052_A

Resumen de: WO2021196564A1

A wide-power hydrogen production system and method by electrolysis of water. The system comprises a rectifier transformer (1) and electrolytic cells (2), the rectifier transformer (1) converting alternating current into direct current and then supplying the direct current to the electrolytic cells (2); the system further comprises a gas-liquid separator (3), a gas cooler (4), and a gas droplet capturer (5); the rectifier transformer (1) is connected to a fluctuating power supply; the gas-liquid separator (3) comprises a hydrogen separator and an oxygen separator; the gas cooler (4) comprises a hydrogen cooler and an oxygen cooler; the gas droplet capturer (5) comprises a hydrogen droplet capturer and an oxygen droplet capturer; and a cathode electrolyte outlet of each electrolytic cell (2) is communicated with the hydrogen separator of the gas-liquid separator (3), and an anode electrolyte outlet of the electrolytic cell (2) is communicated with the oxygen separator of the gas-liquid separator (3). The system and method can effectively solve the problems that the current hydrogen production systems by electrolysis of water are limited in power adjustable range and the response capability of a system such as pressure adjustment during wide power fluctuation is insufficient.

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Electrochemical cell, electrochemical cell stack, and electrolyte for electrochemical cell

NºPublicación: AU2021201380A1 07/10/2021

Solicitante:

TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP

JP_2021150133_A

Resumen de: AU2021201380A1

An electrochemical cell includes an electrolyte arranged between a hydrogen electrode and an oxygen electrode, wherein the electrolyte contains a ceria-based material having a fluorite 5 crystal structure and a stabilized zirconia-based material. CURRENT COLLECTOR 140 OXYGEN ELECTRODE 130 ELECTROLYTE 120 HYDROGEN ELECTRODE 110.. CURRENT COLLECTOR 140 CURRENT COLLECTOR 140 OXYGEN ELECTRODE 130 OXYGEN-ELECTRODE NEIGHBORING ELECTROLYTE 123 CENTRAL.ELECTROLYTE122 ... 120 HYDROGEN-ELECTRODE NEIGHBORING ELECTROLYTE 121 HYDROGEN ELECTRODE 110 CURRENTCOLLECTOR 140

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H2O-BASED ELECTROCHEMICAL HYDROGEN-CATALYST POWER SYSTEM

NºPublicación: US2021313606A1 07/10/2021

Solicitante:

BRILLIANT LIGHT POWER INC [US]

JP_2019071276_A

Resumen de: US2021313606A1

An electrochemical power system is provided that generates an electromotive force (EMF) from the catalytic reaction of hydrogen to lower energy (hydrino) states providing direct conversion of the energy released from the hydrino reaction into electricity, the system comprising at least two components chosen from: H2O catalyst or a source of H2O catalyst; atomic hydrogen or a source of atomic hydrogen; reactants to form the H2O catalyst or source of H2O catalyst and atomic hydrogen or source of atomic hydrogen; and one or more reactants to initiate the catalysis of atomic hydrogen. The electrochemical power system for forming hydrinos and electricity can further comprise a cathode compartment comprising a cathode, an anode compartment comprising an anode, optionally a salt bridge, reactants that constitute hydrino reactants during cell operation with separate electron flow and ion mass transport, and a source of hydrogen. Due to oxidation-reduction cell half reactions, the hydrino-producing reaction mixture is constituted with the migration of electrons through an external circuit and ion mass transport through a separate path such as the electrolyte to complete an electrical circuit. A power source and hydride reactor is further provided that powers a power system comprising (i) a reaction cell for the catalysis of atomic hydrogen to form hydrinos, (ii) a chemical fuel mixture comprising at least two components chosen from: a source of H2O catalyst or H2O catalyst; a source o

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CARBON DIOXIDE CONVERSION USING COMBINED FUEL CELL AND ELECTROLYSIS CELL

NºPublicación: US2021313608A1 07/10/2021

Solicitante:

OMNAGEN LTD [GB]

WO_2020015894_A1

Resumen de: US2021313608A1

A solid oxide cell device is provided which uses hydrocarbon fuel gas and oxygen to remove carbon dioxide from a gas stream, converting it to syngas (carbon monoxide and hydrogen), preferably without any input of external energy beyond that derived from the input gases. Existing processes can then be used to convert the syngas to stable liquid or solid organic chemicals, so that all the input carbon is fixed. Partial oxidation of hydrocarbon fuel gas in a solid oxide fuel cell produces syngas and electricity, and the electricity powers a solid oxide electrolyser which reacts carbon dioxide with further hydrocarbon fuel gas to produce more syngas The fuel cell and electrolyser together can achieve self-sustaining carbon dioxide utilization.

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A PROCESS AND APPARATUS FOR THE PRODUCTION OF HYDROGEN

NºPublicación: US2021310134A1 07/10/2021

Solicitante:

CGE ENERGY LTD [GB]

BR_112021006975_A2

Resumen de: US2021310134A1

A process and apparatus for the production of hydrogen There is provided a process for the production of hydrogen, the process comprising: electrolysing water in an electrolytic cell to produce hydrogen gas and oxygen gas, the electrolytic cell having a first outlet for hydrogen gas; passing the hydrogen gas from the first outlet of the electrolytic cell to a reaction chamber, the reaction chamber comprising a first inlet for receiving the hydrogen gas from the electrolytic cell and a second outlet for hydrogen gas passing out of the reaction chamber, the reaction chamber containing one or more pieces of a metal or an alloy thereof at least partially submerged in an alkali solution, wherein the first inlet is arranged so that the hydrogen gas bubbles through the alkali solution; passing the hydrogen gas from the second outlet to a gas-cleaning chamber, the gas-cleaning chamber comprising a second inlet for receiving hydrogen gas from the reaction chamber and a third outlet for hydrogen gas passing out of the cleaning chamber, the gas-cleaning chamber containing an aqueous solution, wherein the second inlet is arranged so that the hydrogen gas bubbles through the aqueous solution; and recovering hydrogen gas from the third outlet.

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COMPRESSION APPARATUS

NºPublicación: US2021310137A1 07/10/2021

Solicitante:

PANASONIC IP MAN CO LTD [JP]

CN_113383112_A

Resumen de: US2021310137A1

A compression apparatus includes an electrolyte membrane, an anode on a principal surface of the electrolyte membrane, a cathode on another principal surface of the electrolyte membrane, an anode separator on the anode, a cathode separator on the cathode, and a voltage applicator. Upon the voltage applicator applying a voltage between the anode and the cathode, protons are extracted from an anode fluid fed to the anode to migrate to the cathode through the electrolyte membrane and compressed hydrogen is produced. The cathode separator has a first O-ring groove formed in a cathode-side principal surface of the cathode separator to surround a region of the cathode-side principal surface which faces the cathode. The compression apparatus includes a first O-ring held by the first O-ring groove and a face seal disposed on an outer periphery of a region of an anode-side principal surface of the anode separator which faces the anode.

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MODULAR ELECTROLYZER UNIT TO GENERATE GASEOUS HYDROGEN AT HIGH PRESSURE AND WITH HIGH PURITY

NºPublicación: US2021310136A1 07/10/2021

Solicitante:

THALESNANO ENERGY ZRT [HU]

CN_112969822_A

Resumen de: US2021310136A1

The present invention relates to the field of generating gaseous hydrogen at high pressures and with high purity via electrolysis of water by means of an electrolyzer unit (100) with a novel structure.

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HIGH ENERGY RECOVERY NITRIC ACID PROCESS USING LIQUID OXYGEN CONTAINING FLUID

NºPublicación: US2021300759A1 30/09/2021

Solicitante:

YARA INT ASA [NO]

CN_112585088_A

Resumen de: US2021300759A1

A novel concept for a high energy and material efficient nitric acid production process and system is provided, wherein the nitric acid production process and system, particularly integrated with an ammonia production process and system, is configured to recover a high amount of energy out of the ammonia that it is consuming, particularly in the form of electricity, while maintaining a high nitric acid recovery in the conversion of ammonia to nitric acid. The energy recovery and electricity generation process comprises pressurizing a liquid gas, such as air, oxygen and/or N2, subsequently evaporating and heating the pressurized liquid gas, particularly using low grade waste heat generated in the production of nitric acid and/or ammonia, and subsequently expanding the evaporated pressurized liquid gas over a turbine. In particular, the generated electricity is at least partially used to power an electrolyzer to generate the hydrogen needed for the production of ammonia. The novel concepts set out in the present application are particularly useful in the production of nitric acid based on renewable energy sources.

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BIOGAS-UTILIZING METHANATION SYSTEM

NºPublicación: WO2021192591A1 30/09/2021

Solicitante:

MITSUBISHI POWER LTD [JP]

JP_2021155614_A

Resumen de: WO2021192591A1

A biogas-utilizing methanation system is equipped with a solid oxide fuel cell in which a to-be-treated gas is used as a fuel gas, a hydrogen generator capable of generating hydrogen using the power of a renewable energy power generator, and a methanation device that methanates carbon dioxide in the system with hydrogen generated by the hydrogen generator. Carbon dioxide in the system can be stored in a storage device on the basis of the amount of to-be-treated gas supplied or the power of the renewable energy power generator.

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FUEL PRODUCTION DEVICE

NºPublicación: WO2021192156A1 30/09/2021

Solicitante:

HITACHI LTD [JP]

Resumen de: WO2021192156A1

Provided is a device for producing a fuel using a high-temperature exhaust gas released from an internal combustion engine. The present invention relates to a fuel production device comprising an internal combustion engine, an electrolysis device connected to the internal combustion engine, and a hydrogenation reactor connected to the electrolysis device, wherein the electrolysis device is a device whereby a high-temperature water vapor contained in the exhaust gas from the internal combustion engine is decomposed into hydrogen and oxygen, and the hydrogenation reactor is a device whereby the hydrogen from the decomposition is converted into a fuel.

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FUEL PRODUCTION DEVICE

NºPublicación: WO2021192004A1 30/09/2021

Solicitante:

HITACHI LTD [JP]

Resumen de: WO2021192004A1

The present invention provides a fuel production device that is capable of producing fuel from carbon dioxide and water with high conversion efficiency. A fuel production device (100) comprises an electrolysis cell (10) which generates fuel from carbon dioxide and water, wherein the electrolysis cell (10) includes a catalytic electrode (110), a counter electrode (120), and a solid electrolyte layer (130) disposed between the catalytic electrode (110) and the counter electrode (120), the catalytic electrode (110) including a cathode material that reduces carbon dioxide and water to generate carbon monoxide and hydrogen, and a fuel synthesizing catalyst that synthesizes fuel from carbon monoxide and hydrogen, and the counter electrode (120) including an anode material that oxidizes oxide ions to generate oxygen.

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ACID-TYPE SULFONIC ACID GROUP-CONTAINING POLYMER, LIQUID COMPOSITION, POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, POLYMER ELECTROLYTE FUEL CELL AND ION EXCHANGE MEMBRANE FOR WATER ELECTROLYSIS

Nº publicación: US2021301044A1 30/09/2021

Solicitante:

AGC INC [JP]

CN_113166295_A

Resumen de: US2021301044A1

To provide an acid-type sulfonic acid group-containing polymer which is excellent in hydrogen gas barrier properties and hot water resistance and which generates less oligomer during production; a liquid composition and a polymer electrolyte membrane comprising this acid-type sulfonic acid group-containing polymer; and a membrane electrode assembly and a polymer electrolyte fuel cell provided with the polymer electrolyte membrane.This acid-type sulfonic acid group-containing polymer is a polymer which has perfluoromonomer units, no monomer units having a halogen atom other than a fluorine atom, and acid-type sulfonic acid groups, and of which the hydrogen gas permeability coefficient under the conditions of a temperature of 80° C. and a relative humidity of 10%, is at most 2.5×10−9 cm3·cm/(s·cm2·cmHg), and the mass reduction rate when being immersed in hot water at 120° C. for 24 hours is at most 15 mass %, wherein the TQ value of a polymer having fluorosulfonyl groups which is a precursor of the polymer having acid-type sulfonic acid groups, is at least 220° C.

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