旋转弧等离子体转化油脂制合成气

摘要

Due to waste oil can cause serious pollution and various social problems, a study of its comprehensive utilization is imperative. In this study, soybean oil was used as substitute of waste oil and converted into syngas in a homemade rotating arc plasma reactor. Effects of water/oil mass ratio, input power and magnetic flux intensity on reaction performance were investigated. It was shown that the main product gas was CO and H2, accounted for more than 91.0% (vol), as well as small amounts of CO2 and hydrocarbons. Water/soybean oil mass ratio has a large impact on syngas compositions and energy conversion efficiency, but little impact on carbon conversion and syngas yield. Carbon conversion increased to 98.5% with the increase of input power and energy conversion efficiency reached the maximum of 72.9% at 17.9 kW. Magnetic flux intensity has a slight effect on results but it could protect the anode from erosion.%废弃油脂不仅造成严重的环境污染,而且容易引发各种社会问题,因此加快对废弃油脂的综合利用势在必行.本文以大豆油作为废弃油脂替代物,在自制炬/反应器中开展旋转弧等离子体转化油脂制合成气研究,系统考察了水/大豆油质量比、输入功率和磁感应强度对大豆油转化过程的影响.研究结果表明,气体产物主要为 CO、H2、CO2与烃类,CO与H2最高可占气体总量的91.0%(体积)以上.水/大豆油质量比主要影响产物组成和能量转化效率,对碳气相转化率和合成气收率影响较小.增加输入功率,碳气相转化率可提高至 98.5%,能量转化效率在17.9 kW时达到最大值72.9%.实验考察范围内磁感应强度对大豆油转化效果的影响很小,但可以起到保护阳极的作用.