实现煤炭开发和利用净零碳排放的新方法:原则,方法和成本估计
Yang Ju1, Yu Fei2, Xiaodong Nie3
1State Key Laboratory for Fine Exploration and Intelligent Development of Coal Resources, China University of Mining & Technology Beijing, D11 Xueyuan RD, Beijing 100083, China; School of Energy and Mining Engineering, China University of Mining & Technology Beijing, D11 Xueyuan Road, Beijing 100083, China.
The Science of the total environment
|December 25, 2024
概括
一种新的低碳煤炭方法集成了现场转换采矿和矿物碳化 (ICMMC) 以实现高效的能源生产和碳封存. 这项技术为传统煤炭发电提供了成本效益较高,更清洁的替代方案,有助于全球减少碳排放的努力.
科学领域:
- 能源科学 能源科学
- 环境工程 环境工程
- 地质工程是地质工程.
背景情况:
- 中国的能源部门严重依赖煤炭,这给实现碳中和目标带来了挑战.
- 开发低碳,清洁,安全和高效的煤炭技术对于全球碳减排目标至关重要.
研究的目的:
- 提出和评估一种新的低碳煤炭开发和利用方法:现场转换采矿和矿物碳化 (ICMMC).
- 为了解决矿物碳化 (MC) 的缓慢反应速率,以有效地封存碳.
- 分析ICMMC的经济和环境竞争力,与碳捕获和封存 (CPCCS) 的燃煤发电和储能 (OWPES) 的陆上风电相比.
主要方法:
- 在现场转换采矿和矿物碳化 (ICMMC) 的整合,用于同时开采煤炭,分离,填充,转换,储能和碳封存.
- 使用填充带建造现场碳化存储库,并实施分层碳化工艺,以提高封存效率.
- 生命周期评估 (LCA) 和平衡电力成本 (LCOE) 分析,将ICMMC与CPCCS和OWPES进行比较.
主要成果:
- ICMMC显著降低碳排放量至0.091公斤/千瓦时,远低于传统的煤炭发电.
- 在未来七年内,ICMMC的竞争性LCOE为0.463 CNY/kWh,超过了CPCCS和OWPES.
- 该方法有效地克服了矿物碳化反应速度缓慢的瓶.
结论:
- ICMMC系统提供了一种可行且具有成本效益的低碳煤炭技术.
- ICMMC可以部分取代CPCCS和OWPES,减轻全球碳减排压力.
- 这项技术作为一个关键的过渡战略,用于脱碳能源系统在依赖煤炭的国家.
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