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介电屏障排放等离子体辅助的CO2减少与废塑料热解气体

Youqi Zhu¹, Jingyuan Sima¹, Jiaxing Song¹

¹State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, People's Republic of China.

Environmental technology

|August 3, 2025

概括

这项研究使用室温等离子体技术将废塑料气体和二氧化碳 (CO2) 转化为有价值的液态碳化合物. 这种新的方法为二氧化碳利用和碳中和社会提供了低成本,高能效的途径.

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:

将二氧化碳 (CO2) 转化为有价值的化学物质对于碳中和社会至关重要.
传统的二氧化碳减排方法是能源密集的.
废塑料热解气体是一个未充分利用的碳源.

研究的目的:

开发一种低成本的室温等离子体辅助工艺,以减少二氧化碳排放.
为了利用乙烯 (C2H4),模拟废塑料热解气体,作为协同反应剂.
从二氧化碳和C2H4.4中优化含氧液态碳化合物的生产.

主要方法:

一个同轴介电屏障放电 (DBD) 反应堆被用于等离子体辅助的二氧化碳减排.
对关键参数进行系统的调查:CO2/C2H4摩尔比率,等离子体电压和料流量.
使用气体染色学-质谱学 (GC-MS) 进行产品分析,并通过密度函数理论 (DFT) 分析进行理论讨论.

主要成果:

成功地将二氧化碳减少到液态碳化合物产品,包括酒精 (例如1-butanol,26.81%) 和酸 (例如酸,23.92%).
确定了CO2/C2H4摩尔比率是影响产品分布的主要因素.
DFT分析提供了关于酒精和酸形成的反应机制的见解.

结论:

用塑料废弃物的二氧化碳与热解气体的等离子体辅助转化是一种可行的新方法.
该过程在室温和大气压下有效运行.
这种方法有助于二氧化碳利用和循环经济的发展.

关键词:

二氧化碳转化转换方法使用等离子体辅助的改造.含有氧气的液体产品.废物处理处置的废物处理方式塑料废弃物热解气体是废塑料的

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