Reforming of Methane and Carbon Dioxide Using Microwave Olasma Torch

• Main Authors: Li-Wei Liang, 梁立緯
• Other Authors: Ta-Chin Wei
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/03810530977020438129

碩士 === 中原大學 === 化學工程研究所 === 94 === Reforming of methane and carbon dioxide using microwave plasma torch was investigated. A series of experiments were conducted to determine methane with carbon dioxide conversion and product distributions over different operation parameters. In the meanwhile, an equilibrium model was developed using Chemkin IV to simulate plasma torch. The model results were compared with experimental measurements. Experimental result showed that methane and carbon dioxide could be effectively converted in N2 plasma torch to from H2 and CO. The CH4/CO2 ratio has a large effect on H2/CO ratio in the effluent. A decrease in N2 sheath gas flow rate and an increase of microwave power increase the gas temperature, resulting in the increase of reactant conversion. Increasing the reactant flow rate made the conversion to decrease but the specific energy consumption was reduced. The conversion of reactant and the energy consumption can be further improved using argon as the sheath gas. A thermodynamic model was developed to calculate the equilibrium composition in plasma torch system. By comparing experimental data with model predictions, it was found that the thermodynamic model is able to capture most of the experimentally observed trends as CH4/CO2 feed ratio was below 50%.