Methane(CH_(4)),as the primary component of natural gas,has the highest hydrogen-to-carbon ratio,making it a clean energy source[1].In contrast to high-concentration methane source derived from oil extraction,low-grad...Methane(CH_(4)),as the primary component of natural gas,has the highest hydrogen-to-carbon ratio,making it a clean energy source[1].In contrast to high-concentration methane source derived from oil extraction,low-grade coal-bed methane(CBM,<30%,predominantly mixed with N_(2)),is difficult to be used directly and often is released into the atmosphere during coal mining for safety reasons[2].The methane emission not only wastes a cleaner energy source but also contributes to global warming,as methane ranks as the second most significant greenhouse gas[3].展开更多
基金supported by the National Natural Science Foundation of China(22225803,22038001,22278011,and 22108007)the Beijing Natural Science Foundation(Z230023)the Beijing Nova Program(Z211100002121094).
文摘Methane(CH_(4)),as the primary component of natural gas,has the highest hydrogen-to-carbon ratio,making it a clean energy source[1].In contrast to high-concentration methane source derived from oil extraction,low-grade coal-bed methane(CBM,<30%,predominantly mixed with N_(2)),is difficult to be used directly and often is released into the atmosphere during coal mining for safety reasons[2].The methane emission not only wastes a cleaner energy source but also contributes to global warming,as methane ranks as the second most significant greenhouse gas[3].