中国钢铁行业的长期转型为碳捕获和储存技术的部署
Yihan Wang1, Zongguo Wen2,3, Mao Xu4,5
1Department of Civil Engineering, The University of Hong Kong, Hong Kong, China.
Nature communications
|May 7, 2025
概括
碳捕获和储存 (CCS) 可以在2060年前显著减少中国钢铁行业的碳排放. 最佳的CCS部署策略具有成本效益,但需要仔细管理能源和水资源.
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.
- 工业生态学 工业生态学
背景情况:
- 钢铁行业的转型为碳捕获和储存 (CCS) 的部署带来了挑战.
- 钢铁行业的深度脱碳对于减缓气候变化至关重要.
- 中国的钢铁行业是全球碳排放的主要贡献者.
研究的目的:
- 根据各部门的转型路径,模拟到2060年的中国钢铁单位分布.
- 为钢铁行业创建最佳的碳捕获和储存 (CCS) 部署方案.
- 评估CCS在中国钢铁行业的碳减排潜力,成本效益和资源影响.
主要方法:
- 整合到2060年钢铁单位的部门级转型途径.
- 使用源-沉匹配模型模拟钢单元分布.
- 优化CCS部署方案,考虑到缓解效应和成本.
主要成果:
- 预计到2060年,碳捕获和储存 (CCS) 将占中国钢铁行业碳减排的31.4-40.7%.
- 预计将有超过650个钢单元被淘汰或改装.
- 最佳的CCS方案以187.4-193.5元/二氧化碳的平衡成本提供显著的碳减排 (472.4-609.6万),在未来的碳价格下证明具有成本效益.
- 确定了能源 (951.0-1427.3 PJ) 和水 (1.60-1.69万立方米) 稀缺的潜在风险.
结论:
- 该研究为在中国钢铁行业制定有效的CCS实施策略提供了见解.
- 优化CCS部署可以为钢铁行业的深度脱碳目标做出贡献.
- 为了实现可持续的CCS部署,平衡碳减排与资源消耗至关重要.
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