Technology for preparing low-carbon alcohol and by-products of natural gas and hydrogen from coke oven gas

Provided is a technology for preparing low-carbon alcohol and by-products of natural gas and hydrogen from coke oven gas. Coke oven gas is subjected to compression and desulphurization and decarburization processing, purified coke oven gas with a H2S concentration of less than 1ppm is obtained, remo...

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Hauptverfasser:	CAO HUIBO, MA YINGMIN, WANG GUI, ZHANG QINGGENG, LI XIAO
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOUNDS THEREOF FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY LIQUEFIED PETROLEUM GAS LUBRICANTS METALLURGY NATURAL GAS NON-METALLIC ELEMENTS ORGANIC CHEMISTRY PEAT PETROLEUM, GAS OR COKE INDUSTRIES PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	Provided is a technology for preparing low-carbon alcohol and by-products of natural gas and hydrogen from coke oven gas. Coke oven gas is subjected to compression and desulphurization and decarburization processing, purified coke oven gas with a H2S concentration of less than 1ppm is obtained, removed H2S concentrated gas is subjected to sulfur removal and recovery, the purified coke oven gas is subjected to cryogenic separation, CH4 is removed, and the removed CH4 is sold as a CNG Product. The coke oven gas without CH4 is subjected to a low-carbon alcohol synthesis reaction, gas products and mixed low-carbon alcohol liquid products are obtained, the gas products are subjected to PSA membrane separation as exhausted gas, the separated hydrogen is sold as a product, and the other separated gases return to a coke oven gas purification unit. The liquid products go to an alcohol-water separation unit, the alcohol-water mixture is subjected to separation and water and a low-carbon alcohol product are obtained. The technology can promote energy saving and emission reduction and energy structure adjustment, and can raise economic benefits and environment benefits obviously.