粉煤气化耦合绿氢制甲醇过程经济性和减碳研究
Research on process economic and carbon reduction effect of pulverized coal gasification coupling with green hydrogen to produce methanol
贺树民1
作者信息
- 1. 煤炭科学技术研究院有限公司,北京 100013;中国煤科低碳技术研究院,北京 100013;国家能源煤炭高效利用与节能减排技术装备重点实验室,北京 100013
- 折叠
摘要
重点介绍了煤和绿氢耦合制甲醇替换煤制甲醇过程的经济效益和CO2 减排情况对比.使用光伏发电电解水生产绿氧、绿氢,绿氧用于煤气化,绿氢全部替代工艺变换产生的灰氢.在煤炭价格为 500 元/t、工业用电价格为 0.86 元/kWh时,煤制甲醇单位甲醇成本约为 1527.1 元/t;当绿电成本为0.2 元/kWh时,煤和绿氢耦合制甲醇生产成本约为 1669.7 元/t.若煤和绿氢耦合制甲醇全部替换煤制甲醇,CO2 排放量将减少98.5%.大规模绿氢和绿电与煤化工的深度耦合可实现CO2 直接减排,助力"双碳"目标实现.
Abstract
This article compares the coal coupling with green hydrogen to methanol process with the coal to methanol process in the aspects of economic benefit and CO2 emission reduction.Green oxygen and green hydrogen generated by photovoltaic power driven water electrolysis are respectively used in coal gasification and to replace"gray"hydrogen produced by the process transformation.The unit cost of methanol made from the coal to methanol process is about RMB 1527.1 per ton when coal price is RMB 500 per ton and industrial electricity price is RMB 0.86 per kWh.The unit cost of methanol made from the coal coupling with green hydrogen to methanol process is RMB 1669.7 per ton if the cost of green electricity used is 0.2 RMB per kWh.If all coal to methanol in the globe is replaced by coal coupling with green hydrogen to methanol,CO2 emission will be reduced by 98.5%.Deep coupling between large-scale green hydrogen and green electricity with coal chemical industry can achieve direct CO2 emission reduction and help achieve the"carbon emission peaking and carbon neutrality"goal.
关键词
碳中和/粉煤气化/甲醇合成/耦合/绿氢/CO2减排Key words
carbon neutrality/pulverized coal gasification/methanol synthesis/coupling/green hydrogen/CO2 emission reduction引用本文复制引用
基金项目
天地科技股份有限公司科技创新创业资金专项项目(2022-2-TD-ZD003)
出版年
2024
NETL
NSTL
万方数据