部署绿色气来脱碳中国的煤化工行业
Yang Guo1, Liqun Peng2, Jinping Tian3
1Princeton School of Public and International Affairs, Princeton University, Princeton, NJ, 08544, USA. yangguo@princeton.edu.
Nature communications
|December 7, 2023
概括
中国中国中国中国.
科学领域:
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
- 能源政策 能源政策
背景情况:
- 中国的煤化工行业是温室气体 (GHG) 排放的重要来源,在2020年贡献了全国排放的9%.
- 仅电气化不足以减少该部门的温室气体排放,因为该部门依赖煤炭作为燃料和原料.
研究的目的:
- 评估通过在中国煤炭化学工业现场部署绿色 (H2) 和氧 (O2) 来减轻温室气体排放的潜力.
- 分析实施这些绿色技术的相关成本.
主要方法:
- 生命周期评估 (LCA) 用于量化温室气体排放.
- 技术经济分析以评估成本效益.
主要成果:
- 预计到2030年减少53%的温室气体排放量可以通过用太阳能或风能生产的绿色H2和O2取代基于煤炭的H2和基于空气分离的O2.
- 温室气体减排的成本从以太阳能为基础的H2为10 CNY/tCO2eq,到以风力为基础的O2为153 CNY/tCO2eq.
- 内蒙古,西,宁夏和新疆等关键地区显示出显著的缓解潜力,潜在的净成本降低.
结论:
- 现场绿色的H2和O2部署提供了一条可行的途径,可以大幅减少中国煤炭化学部门的温室气体排放.
- 省级地区应优先考虑成本效益高的可再生能源 (太阳能或风能) 用于水电解,以最大限度地减少风险.
- 高潜力地区的有针对性的试点政策可以加速采用这些温室气体减排战略.
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