不同煤的燃烧特征,功能组和气态排放行为由TG-FTIR
Chunxiang Chen1,2,3, Shuo Qin4, Jundong Zhu4
1College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City, 530004, PR China. xiangxiang570@163.com.
Environmental science and pollution research international
|February 11, 2025
概括
由于灰中的金属,低热量印尼煤最容易燃烧. 这项研究比较了印度尼西亚,西和达通煤炭的燃烧和排放.
科学领域:
- 燃烧科学和环境工程.
背景情况:
- 了解煤炭燃烧特性对于优化能源生产和最大限度地减少环境影响至关重要.
- 不同的煤炭类型表现出不同的燃烧行为,并产生不同的气体排放.
- 印度尼西亚,西和达通的煤炭是重要的能源,需要进行比较分析.
研究的目的:
- 分析和比较低热量印尼煤 (LC),山西煤 (SC) 和达通煤 (TC) 的燃烧特性和气体排放.
- 研究煤灰成分对燃烧过程中的催化活性的影响.
- 提供数据,以便在热电厂中进行知情的煤炭选择和排放控制.
主要方法:
- 热重力测量-里埃变换红外光谱学 (TG-FTIR) 用于分析燃烧行为和气体排放.
- 确定了煤炭的灰组成和功能组.
- 在不同的温度下量化了CO2,CO,SO2,NOx和HCN的排放水平.
主要成果:
- 低热量印度尼西亚煤 (LC) 显示最容易燃烧,归因于其灰中的金属和土金属 (AAEMS),其具有较高的催化活性.
- 山西煤炭 (SC) 和达通煤炭 (TC) 灰主要由粘土矿物质组成.
- 液化电气产生了更高的二氧化碳排放量 (1.04-1.25倍于SC和TC),而TC显示了最高的CO和SO2排放量. 在LC和SC中,NOx排放量是可比的,TC的排放量略低.
结论:
- 燃烧易度和排放配置文件在LC,SC和TC之间有很大的差异.
- 灰的组成,特别是LC中AAEMS的存在,在燃烧效率和催化活性中起着关键作用.
- 研究结果为选择合适的煤炭类型和管理热发电中的气体排放提供了宝贵的见解.
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