在中国追踪化石塑料,化学品和化肥生产
Meng Jiang1,2, Yuheng Cao1, Changgong Liu3
1Department of Chemical Engineering, Tsinghua University, Beijing, China.
Nature communications
|May 8, 2024
概括
中国中国中国中国.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
- 气候变化缓解缓解 气候变化缓解
背景情况:
- 逐步减少化石燃料对于全球气候缓解努力至关重要.
- 化石燃料的非能源用途,例如在化学生产中,对二氧化碳排放有很大贡献.
- 了解这些排放对于制定有效的气候战略至关重要.
研究的目的:
- 量化中国化学工业中化石燃料的非能源使用情况.
- 估计该部门相关的二氧化碳 (CO2) 排放量.
- 探索难以减少的化学生产的脱碳途径.
主要方法:
- 基于化学过程的材料流模型的开发.
- 2017年中国化学工业原料 (煤炭,原油,天然气) 消费情况分析.
- 计算与生产关键化学品 (如甲醇,氨和PVC) 相关的二氧化碳排放量.
主要成果:
- 2017年,中国的化学工业消耗了0.18亿煤,88.8亿原油和12.9亿天然气作为原料.
- 这种原料的使用占中国总煤炭的5%,原油的15%和天然气消费的7%.
- 煤炭化工生产,特别是甲醇,氨和PVC,导致大约0.27亿二氧化碳排放 (约占中国总排放量的3%).
结论:
- 中国的化学工业严重依赖化石燃料作为原料,导致大量的二氧化碳排放.
- 脱碳战略必须解决这些难以减排的行业.
- 提高能源效率和整合绿色是减少中国化学生产碳足迹的有希望的替代方案.
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