热等离子体转化温室气体的基础研究

Basic Research on Conversion of Greenhouse Gases by Thermal Plasma Technique

关键词:  等离子体  甲烷  二氧化碳  裂解  重整  温室气体

Key words:  thermal plasma  methane  carbon dioxide  decomposition  reforming  greenhouse gases

摘要:

二氧化碳和甲烷既是温室气体的主要组成又是丰富的碳资源,研究二氧化碳和甲烷的化学转化和利用有着重要的意义。在热等离子体提供的高温、高能量反应环境中,进行了二氧化碳单独裂解、甲烷单独裂解与甲烷二氧化碳重整反应的对比实验研究。结果 表明:热等离子体是转化二氧化碳和甲烷的有效手段。为了得到较高的转化率和化学能效值,应采用甲烷和二氧化碳具有相互促进作用的重整反应过程。

Abstract:

Development of plasma methods for chemical transformation of CO2and CH4 into useful compounds is of paramount importance from two standpoints of C1 chemistry and so-called green chemistry.Thermal plasma which has high temperature and high enthalpy was used to study carbon dioxide decomposition,methane decomposition and carbon dioxide reforming of methane.The results show that thermal plasma is an effective means for carbon dioxide and methane transform.The mutual promotion between carbon dioxide and methane in reforming process should be considered in order to obtain high conversion of CH4 and CO2,and high chemical energy efficiency.