通过等离子体和电解将CO2转化为CO2:技术经济和能源成本分析
Jose Osorio-Tejada1, Marc Escriba-Gelonch2, Rani Vertongen3
1School of Engineering, University of Warwick UK volker.hessel@adelaide.edu.au.
Energy & environmental science
|August 15, 2024
概括
与电解相比,等离子激活提供了一种更具成本效益的方法,用于将捕获的二氧化碳 (CO2) 转化为一氧化碳 (CO). 这种方法显著降低了能源成本和生产费用,使其成为化学工业净零排放的竞争性解决方案.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 可持续化学 可持续化学
- 能源转换 能源转换
背景情况:
- 在化工行业实现净零排放需要电气化和碳捕获技术.
- 将捕获的二氧化碳 (CO2) 转化为一氧化碳 (CO) 对于将其作为化学原料使用至关重要.
研究的目的:
- 评估等离子激活和电解的可行性,以使用清洁的电力将二氧化碳转化为二氧化碳.
- 将滑动弧等离子反应堆的能源成本和生产经济性与新型碳床系统与零间隙低温电解器进行比较.
主要方法:
- 一个带有嵌入式新型碳床系统的滑动弧形等离子反应器与现代零间隙型低温电解器进行了比较.
- 这两种方法都使用了清洁的电力和捕获的二氧化碳作为输入.
- 分析了这两种技术的能源消耗和二氧化碳生产成本.
主要成果:
- 与电解相比,等离子体方法显示能耗降低了43% (19.5 GJ/CO).
- 基于等离子体的二氧化碳生产成本为671美元/,而电解为962美元/ (潜在范围为570美元至1392美元/).
- 碳床系统在等离子体方法中增强了二氧化碳转化和二氧化碳生成,提高了成本效益.
结论:
- 等离子激活,特别是碳床系统,是从二氧化碳中生产二氧化碳的更可行和更具竞争力的方法.
- 电解面临着高设备成本和低电流密度的挑战,影响其经济可行性.
- 未来的成本降低低于500美元/,这两种方法都可能具有负担得起的原料和设备,尽管电解仍然更复杂.
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