减少中国建筑材料体现的排放:实现建筑材料碳中和的机遇和挑战
Hongyou Lu1, Kairui You2,3, Wei Feng1,2,3
1Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
iScience
|March 4, 2024
概括
在中国提高材料效率.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 气候变化缓解缓解 气候变化缓解
背景情况:
- 建筑材料产生的二氧化碳 (CO2) 排放占中国二氧化碳总产量的17%.
- 解决这些排放问题对于中国实现碳中和目标至关重要.
- 缺乏考虑到中国特定的工业和建筑行业背景的系统评估.
研究的目的:
- 开发一个综合模型来评估中国建筑材料行业内嵌入的减排潜力.
- 评估减排策略,考虑生产,使用和回收阶段.
- 在不同的未来情景下预测缓解潜力.
主要方法:
- 综合建模方法将未来的材料需求与二氧化碳减排策略相结合.
- 对材料效率,回收和碳除去技术的分析.
- 基于场景的预测 (低碳和碳中立) 到2060年.
主要成果:
- 材料效率措施在2030年之前提供了最重要的CO2减排潜力.
- 在分析的场景中,这种潜力在2060年仍然很大.
- 该研究强调了价值链改进的重要性.
结论:
- 促进材料效率的政策对于实现中国的气候目标至关重要.
- 建议将体现的排放纳入建筑规范.
- 投资于碳去除的研究,开发和演示 (RD&D) 是至关重要的.
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