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生物质和聚乙烯的联合热解:了解反应过程的特性,动力和演化路径
Teng Xie1, Lixin Zhao1, Zonglu Yao1
1Key Laboratory of Agricultural Green and Low-carbon for North China Plain, Ministry of Agriculture and Rural Affairs, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
The Science of the total environment
|July 13, 2023
概括
玉米茎 (CS) 和低密度聚乙烯 (LDPE) 的联合热解提高了产品产量,并降低了激活能量. 这一过程显示出"双向的积极效应",改善农业废物利用.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 农业固体废物如玉米茎 (CS) 的有效利用对可持续性至关重要.
- 了解共同热解机制是控制产品分布和最大化价值的关键.
- 低密度聚乙烯 (LDPE) 是一种常见的塑料废物,可以与生物质共同加工.
研究的目的:
- 研究玉米茎 (CS) 和低密度聚乙烯 (LDPE) 的共同热解行为,动力学和机制.
- 分析LDPE在CS热解过程中的脱氧化和产品演变的影响.
- 为了确定共热解过程中的动力参数和激活能量变化.
主要方法:
- 热重力测量分析 (TGA) 用于研究共热解特征.
- 使用脱挥化学分析和产品分析来阐明内在机制.
- 应用了无模型的异构转换方法来计算联合热解的动力参数.
主要成果:
- 同火解发生在两个不同的阶段,随着LDPE的添加,脱氧化指数增加.
- 气体产品显示出和烯的产量增加,这表明从LDPE转移气到CS.
- CS和LDPE组件的激活能量显著下降,表明了协同效应.
结论:
- CS和LDPE的共同热解显示出一种
- 双向的积极影响,双向的积极影响.
- 促进热解和减少能源需求.
- 该研究证实了捐赠者转移途径,提高了农业固体废物的资源利用率.
- 这些发现为优化废物价值化共热解工艺提供了理论支持.
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