低碳化学与化工2025，Vol.50Issue(4)：107-112,6.DOI:10.12434/j.issn.2097-2547.20240288
绿氢耦合煤制甲醇碳减排量核算及竞争力分析
Carbon emission reduction accounting and competitiveness analysis of green hydrogen-coupled coal-to-methanol process
摘要
Abstract
The coal-to-methanol production process is accompanied by significant carbon dioxide(CO2)emissions.Green hydrogen-coupled coal chemical technology can effectively reduce carbon emissions in coal chemical processes,yet the associated technical challenges and economic benefits have not been adequately assessed.Based on survey data,an accounting system for CO2 emissions in the green hydrogen-coupled coal-to-methanol process was established and the technological competitiveness of green hydrogen coupling under the low-carbon emission context was analyzed.The results indicate that the green hydrogen-coupled coal-to-methanol process,utilizing renewable energy for hydrogen and oxygen production,eliminates the need for the original CO conversion and air separation steps.For a 60 × 104 t/a coal-to-methanol project,the CO2 emissions of the traditional coal-to-methanol process amount to 205.94 × 104t/a,whereas the green hydrogen-coupled process reduces emissions to 60.94 × 104t/a,a reduction of approximately 70％.With strong national support for the renewable energy industry and rapid advancement of the energy transition strategy,when the price of green electricity decreases to 0.15 CNY/(kW·h),the cost of green hydrogen-coupled coal-to-methanol production is approximately 2883.33 CNY/t,comparable to the cost of traditional processes.If electricity prices continue to decline and are accompanied by carbon tax implementation,the economic advantages of the green hydrogen-coupled coal-to-methanol process will gradually emerge.This study can provide a reference for achieving net-zero carbon emissions in the coal chemical industry under the"carbon peaking and carbon neutrality"goals.关键词
绿氢/煤制甲醇/碳减排/二氧化碳Key words
green hydrogen/coal-to-methanol/carbon reduction/carbon dioxide分类
化学工程引用本文复制引用
杨国庆,杨桔材,律严励,刘明奇,胡阿古达木,王海燕,霍耀强,刘建国..绿氢耦合煤制甲醇碳减排量核算及竞争力分析[J].低碳化学与化工,2025,50(4):107-112,6.基金项目
内蒙古自治区自然科学基金(2023QN02017) （2023QN02017）
内蒙古自治区本级引进人才科研支持项目(DC2300001435) （DC2300001435）
鄂尔多斯科技重大专项(ZD20232301) （ZD20232301）
内蒙古自治区直属高校基本科研业务费项目(RZ2300001594) （RZ2300001594）
内蒙古自治区人才开发基金(DC2300003384). （DC2300003384）
