利用风电进行CO2加氢制甲醇与天然气和煤路线对比的技术经济分析
Technical economic analysis on comparing CO2 hydrogenation to methanol using wind power with natural gas and coal routes
刘健 1李英楠 1贾贺 1杨宇航 1王义松 1那洪明 1杜涛1
作者信息
- 1. 东北大学国家环境保护生态工业重点实验室,辽宁 沈阳 110819
- 折叠
摘要
将水电解、CO2 捕集、风力发电引入甲醇生产,在 200 t/d的产能下,利用Aspen Plus对天然气重整、煤气化、CO2 直接加氢 3 种路线生产甲醇进行流程模拟,并依据模拟结果进行成本估算、碳排放分析和敏感性分析,分析引入电解水、CO2 捕集和风力发电的经济和环境效益.结果显示,在200 t/d的产能下,路线三(CO2 直接加氢)的成本高达 9944.1 元/t,远高于路线一(天然气重整,2595.2 元/t)和路线二(煤气化,2266.5 元/t),但路线三每t甲醇生产可减少CO2 排放 0.57 t,相比另外 2 种方式的高额碳排放(0.67 t CO2/t MeOH和2.29 t CO2/t MeOH)具有巨大的优势.当电解水成本下降和高额碳税存在时,路线三有望实现商业应用.
Abstract
Water electrolysis,CO2 capture,and wind power are used in methanol production.Under a production capacity of 200 tons per day,three methanol production routes,including natural gas reforming,coal gasification,and CO2 direct hydrogenation,are simulated by Aspen Plus software.Based on the simulation results,cost estimation,carbon dioxide emission analysis and sensitivity analysis are carried out.The economic and environmental benefits in using water electrolysis,CO2 capture,and wind power are analyzed.It is shown that under a production capacity of 200 tons per day,the cost of CO2 direct hydrogenation route is as high as RMB 9944.1 per ton,much higher than RMB 2595.2 per ton of natural gas reforming route and RMB 2266.5 per ton of coal gasification route.CO2 direct hydrogenation route can reduce CO2 emissions by 0.57 tons per ton of methanol production,on the contrary,natural gas reforming route will discharge 0.67 tons of CO2 per ton of methanol production,and coal gasification route will discharge 2.29 tons of CO2 per ton of methanol production.CO2 direct hydrogenation route is expected to achieve commercial application if the cost of water electrolysis falls further and high carbon taxes execute.
关键词
甲醇/风电/碳捕集/流程模拟/技术经济分析Key words
methanol/wind power/carbon dioxide capture/process simulation/technical economic analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据