METHOD FOR PREPARING METHANE FROM CARBON DIOXIDE BY UTILIZING OFFSHORE WIND POWER

A method for preparing methane from carbon dioxide by utilizing offshore wind power, comprising the following steps: 1) concentrating and separating carbon dioxide-rich natural gas extracted by a deep-sea offshore platform, and dividing the natural gas into a methane-rich stream and a carbon dioxide...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG, Yu, ZHANG, Yuqing, WANG, Xiulin, LIANG, Wei, DUAN, Pinjia, ZHOU, Shuhui, SUI, Yiyan, SONG, Pengfei, HOU, Jianguo, HOU, Hailong, YAO, Huichao, ZHANG, Chao
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL APPARATUS THEREFOR BLASTING CHEMISTRY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR HEATING LIGHTING LIQUEFIED PETROLEUM GAS LUBRICANTS MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING METALLURGY NATURAL GAS OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR ORGANIC CHEMISTRY PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCING MECHANICAL POWER SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	A method for preparing methane from carbon dioxide by utilizing offshore wind power, comprising the following steps: 1) concentrating and separating carbon dioxide-rich natural gas extracted by a deep-sea offshore platform, and dividing the natural gas into a methane-rich stream and a carbon dioxide-rich stream; 2) after subjecting the carbon dioxide-rich stream to desulfurization and denitrification, performing heat exchange with a process gas of a methanation unit, and then mixing the stream with a by-product, superheated steam, produced by the methanation unit; 3) after mixing carbon dioxide with the by-product, superheated steam, produced by the methanation unit, performing heat exchange with an outlet gas of a high-temperature fuel cell, and after electric heating, the mixture entering a high-temperature fuel cell co-electrolysis unit for electrolysis to obtain a mixture of hydrogen and carbon monoxide; and 4) after subjecting the mixture to heat exchange with an inlet raw material gas of the high-temper