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Economic analysis of different processes of green hydrogen coupled with biomass gasification for green methanol production
- Low-carbon Chemistry and Chemical Engineering Vol. 50, Issue 3, Pages: 97-105(2025)
- 作者机构：
1.西南化工研究设计院有限公司 工业排放气综合利用国家重点实验室，国家碳一化学工程技术研究中心， 四川 成都 610225
2.内蒙古君正氯碱化工技术研究院，内蒙古 乌海 016040
- 作者简介：
- 基金信息：
DOI：10.12434/j.issn.2097-2547.20240435
CLC： TQ223.12Received：27 October 2024，
Revised：19 December 2024，
Published：25 March 2025
- 稿件说明：
移动端阅览
吴子波,张敬宇,吴路平等.不同绿氢耦合生物质气化制绿色甲醇工艺经济性分析[J].低碳化学与化工,2025,50(03):97-105.
WU Zibo,ZHANG Jingyu,WU Luping,et al.Economic analysis of different processes of green hydrogen coupled with biomass gasification for green methanol production[J].Low-carbon Chemistry and Chemical Engineering,2025,50(03):97-105.
吴子波,张敬宇,吴路平等.不同绿氢耦合生物质气化制绿色甲醇工艺经济性分析[J].低碳化学与化工,2025,50(03):97-105. DOI： 10.12434/j.issn.2097-2547.20240435.
WU Zibo,ZHANG Jingyu,WU Luping,et al.Economic analysis of different processes of green hydrogen coupled with biomass gasification for green methanol production[J].Low-carbon Chemistry and Chemical Engineering,2025,50(03):97-105. DOI： 10.12434/j.issn.2097-2547.20240435.
摘要
为研究不同绿氢耦合生物质气化制绿色甲醇工艺的经济性，以较有代表性的3种工艺（催化转化甲醇合成工艺、非催化转化甲醇合成工艺和弛放气提氢循环甲醇合成工艺）为研究对象，分别从固定资产投资、公用工程消耗和总成本费用对3种工艺进行了分析。结果表明，催化转化甲醇合成工艺、非催化转化甲醇合成工艺和弛放气提氢循环甲醇合成工艺固定资产投资依次降低，电解水制氢工序是3种工艺中投资最高的工序，优化该工序配置是降低投资的关键；非催化转化甲醇合成工艺副产蒸汽量最多，将生物质气化合成气出口高温气与转化反应气进行热量耦合是节能降耗的关键；一定条件下弛放气提氢循环甲醇合成工艺具有相对最高的经济性，当电价降至0.2 CNY/(kW·h)以内时，该工艺的总成本费用可低于2684.24 CNY/t。
Abstract
To study the economy of different processes of green hydrogen coupled with biomass gasification for green methanol production
three representative processes (catalytic conversion methanol synthesis process
non-catalytic conversion methanol synthesis process and methanol synthesis process with hydrogen extraction from purge gas for recycling) were taken as the research objects. Analyses were conducted on the three processes from fixed asset investments
utility consumptions and total costs
respectively. The results show that the fixed asset investments of catalytic conversion methanol synthesis process
non-catalytic conversion methanol synthesis process and methanol synthesis process with hydrogen extraction from purge gas for recycling decrease in turn. The electrolytic water hydrogen production process is the process with the highest investment in the three processes
and optimizing configuration of the process is the key to reducing investments. The non-catalytic conversion methanol synthesis process has the highest by-product steam output amounts
and heat coupling between the high-temperature gas of biomass gasification syngas and the conversion reaction gas is the key for energy-saving and cost-reducing. Under certain conditions
methanol synthesis process with hydrogen extraction from purge gas for recycling has relative highest economy
and the total cost of the process can lower than 2684.24 CNY/t when the electricity price is reduced to less than 0.2 CNY/(kW·h).
关键词
Keywords
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