在生物质燃烧过程中,灰与两个基磁性氧气载体的相互作用,通过化学循环与氧气脱离过程
A Filsouf1, I Adánez-Rubio1, T Mendiara1
1Carboquimica Institute, Miguel Luesma Castán, 4, 50018 Zaragoza, Spain.
Energy & fuels : an American Chemical Society journal
|October 23, 2024
概括
化学循环燃烧 (CLC) 有效地从生物质中捕获二氧化碳. 虽然氧气载体表现出高效率,但和在一个载体中积累,尽管没有观察到诸如聚合等操作问题.
科学领域:
- 化学工程是化学工程的组成部分.
- 环境科学环境科学
- 燃烧技术燃烧技术的使用
背景情况:
- 化学循环燃烧 (CLC) 是碳捕获和减缓气候变化的关键技术.
- 通过CLC燃烧生物质可能会产生负二氧化碳排放.
- 生物质灰与氧载体的相互作用对CLC系统的寿命构成挑战.
研究的目的:
- 研究生物质灰和新型氧载体 (Cu30MnFekao7.5和Cu30MnFe) 之间的相互作用.
- 评估这些相互作用在燃烧过程中对氧载体性能的影响.
主要方法:
- 燃烧实验是在使用生物质原料的1.5kWth连续装置中进行的.
- 诱导合等离子体 (ICP) 和扫描电子显微镜与能量分散式X射线分析 (SEM-EDX) 用于分析燃烧后的氧载体.
主要成果:
- 这两种氧气载体在900°C时实现了100%的燃烧效率和95%的二氧化碳捕获效率.
- 运载体中的铜和灰组成部分之间没有观察到显著的相互作用.
- 在Cu30MnFekao7.5载体操作后检测到和的积累.
- 在任何一个载体中都没有遇到聚合或流化问题.
结论:
- 经过测试的氧载体在从生物质中捕获二氧化碳方面表现出高效率.
- 虽然通常是强壮的,但特定的载体可能会从生物质灰中积累和等元素.
- 对灰载体相互作用的进一步研究对于优化生物质的长期CLC性能至关重要.
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