含污染物在煤炭和微藻的化学循环同气化过程中的有针对性的迁移机制
Didi Gai1, Danyang Shao1, Fengxia An2
1Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China.
Journal of hazardous materials
|January 23, 2025
概括
与微藻共同气化煤炭提高了产品的利用率,60%的微藻产生了最佳的协同作用. 这一过程影响了污染物的形成,为清洁能源生产提供了洞察力.
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
- 能源转换 能源转换
背景情况:
- 煤炭和微藻类的化学循环共气化 (CLCG) 提供了高价值的气化产品利用.
- 在这个过程中含有的污染物的转化机制仍然不清楚.
- 了解的转化对于控制有害排放至关重要.
研究的目的:
- 研究微藻比对同气化过程的影响.
- 在不同的条件下探索含物种的进化.
- 阐明煤炭微藻中气运输和转化的机制 CLCG.
主要方法:
- 探索不同的煤-微藻混合比率.
- 优化合气化参数:温度,氧载体与料比率 (O/C) 和蒸汽流量.
- 在同气化产品中分析含物种.
主要成果:
- 40%的煤和60%的微藻混合比率表现出最大的协同效应 (CSI = 1.35).
- 高温促进了氧化前体的产生.
- 充足的蒸汽流量抑制了氧化 (NOx) 的产生;焦炭中的主要是从梅拉德反应中形成的化 (N-5) 和化 (N-6).
结论:
- 该研究提出了一种在煤-微藻化学循环共气化 (CM-CLCG) 过程中气运输和转化机制.
- 确定了协同利用和污染物控制的最佳条件.
- 这些发现为煤炭和生物质的共同利用提供了参考,有助于污染物管理.
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