使用和去除二氧化碳的技术和经济前景
Cameron Hepburn1,2, Ella Adlen3, John Beddington1
1Oxford Martin School, University of Oxford, Oxford, UK.
Nature
|November 8, 2019
概括
在产品中利用捕获的二氧化碳可以降低减排成本. 虽然一些二氧化碳利用途径减少了排放,但其他方法,如建筑材料和陆地方法,也可以从大气中去除二氧化碳.
科学领域:
- 环境科学
- 化学工程
- 材料科学
背景情况:
- 二氧化碳排放导致气候变化.
- 减少大气中的二氧化碳对于缓解全球变暖至关重要.
- 使用二氧化碳为减少排放和去除碳提供了潜在的经济激励.
研究的目的:
- 审查和评估二氧化碳利用的十种不同的途径.
- 评估每个途径在二氧化碳利用和大气中去除方面的潜力.
- 确定大规模实施二氧化碳利用技术的障碍和限制.
主要方法:
- 十种二氧化碳利用途径的文献审查和评估.
- 对每个路径的二氧化碳减排和消除潜力的分析.
- 对广泛部署的可扩展性和资源需求的评估.
主要成果:
- 使用化学品,燃料和微藻的主要途径是减少二氧化碳排放.
- 使用建筑材料和陆地方法的路径可以利用和去除大气中的二氧化碳.
- 每个途径都显示出每年超过0.5千兆二氧化碳的利用潜力.
结论:
- 二氧化碳利用为缓解气候变化提供了多种策略.
- 建筑材料和基于土地的方法提供了显著的碳去除优势.
- 实质性实施障碍和资源限制需要战略部署规划.
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