捕获生物质后燃烧过程中排放的气体和细颗粒污染物
Maria Angélica Martins Costa1, Alexandre Jorge Duarte de Souza2, Bruna Sampaio Mello3
1Department of Chemical Engineering, Institute of Chemistry, São Paulo State University, UNESP, Brazil. Av. Prof. Francisco Degni, 55 - Jardim Quitandinha, Araraquara, São Paulo, CEP 14800-900, Brazil. maria.am.costa@unesp.br.
Environmental science and pollution research international
|March 25, 2025
概括
生物质燃烧释放出大量的二氧化碳 (CO2) 和颗粒物 (PM). 技术显示出高颗粒物捕获 (超过80%) 和中度二氧化碳捕获的前景,有助于可持续的工业转型.
科学领域:
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
- 燃烧科学 燃烧科学
背景情况:
- 化石燃料的工业燃烧增加了温室气体排放,推动了气候变化和健康问题.
- 生物质燃烧提供了一个碳中和的替代方案,但仍然产生有害颗粒物 (PM) 和温室气体.
- 有效的捕获技术对于减轻生物质能源对环境和健康的影响至关重要.
研究的目的:
- 评估实验室和试点规模的技术,以减少生物质燃烧产生的工业二氧化碳 (CO2) 和细颗粒物 (PM) 排放.
- 评估不同捕获方法在生物质燃烧过程中产生的气态污染物和颗粒物的效率.
- 确定生物质能源利用可持续工业实践所需的进展.
主要方法:
- 试验级燃烧器用于评估气体和颗粒物污染物排放.
- 实验室吸收列用于初始的二氧化碳捕获测试.
- 在生物质燃烧过程中,用于同时捕获气体和去除颗粒物的风清洗器.
主要成果:
- 在没有化学增强的情况下观察到较低的二氧化碳捕获效率.
- 使用NaOH溶液的化学吸收提高了二氧化碳的捕获到10.317.24%.
- 风洗机显示出高颗粒物捕获效率 (>80%的PM<1.0μm) 并有效捕获CO和NOx气体,但没有CO2.
结论:
- 生物质燃烧,就像甘包一样,产生大量的气体污染物和PM.
- 对于向生物质过渡的行业来说,先进的捕获技术至关重要,满足气候和空气质量目标.
- 实现了很高的颗粒物捕获效率 (>80%),表明了更清洁的生物质能源生产的潜力.
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