在使用氧载体的流体化床中的吸收,释放和物种化
Viktor Andersson1, Jan B C Pettersson2, Thomas Allgurén1
1Department of Space, Earth and Environment, Division of Energy Technology, Chalmers University of Technology, Hörsalsvägen 7A, SE-412 96 Gothenburg, Sweden.
Energy & fuels : an American Chemical Society journal
|February 19, 2025
概括
使用二氧化碳中性的燃料进行先进的燃料转化需要了解化学. 新的方法揭示了像伊尔梅尼特这样的氧载体如何捕获,这对于优化过程和控制生物质和废物排放至关重要.
科学领域:
- 燃烧化学和热力学
- 材料科学用于能源应用
- 环境工程和排放控制
背景情况:
- 二氧化碳中性燃料 (生物衍生材料,废物) 含有高含量,影响燃烧过程.
- 化合物影响燃料转化,焦油裂变,但也会导致流化床聚合,灰沉积和腐蚀.
- 了解的行为对于扩大先进的燃料转化技术至关重要.
研究的目的:
- 开发和应用新的高温分析方法,用于实时表征.
- 为了研究的吸收,释放和物种化在各种氧载体的流体化床.
- 评估生物质热解过程中的性排放及其对燃料转化的影响.
主要方法:
- 温度调节的表面电离 (TMSI) 用于实时的特异化.
- 实验室规模的反应器用于连续的气注入和排放监测.
- 用于同时监测释和质量损失的TMSI-热重力测量分析 (TGA).
主要成果:
- 伊尔梅尼特表现出高化吸收率 (>90%),特别是在减少条件下.
- 在注射过程中,NaCl和KCl是主要的排放物种,硫酸盐的行为类似.
- 对生物质热解的TMSI分析显示,在低温下KOH占主导地位,KOH和NaOH来自炭/灰.
结论:
- 开发的TMSI和反应器方法提供了对高温化学的实时洞察.
- 氧载体的选择 (例如,伊尔梅尼特) 显著影响捕获效率.
- 实时表征可以优化各种原料的固体燃料转化过程.
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