旋转滑动弧促进甲烷干重整制取合成气

Syngas Generation from Dry Reforming of Methane Using a Rotating Gliding Arc

实验考察了常温常压下,利用旋转滑动弧等离子体促进CH4-CO2重整制取合成气的效果,分析了放电电压、CH4体积分数和供气流量等参数对反应物转化率、产物选择性和经济效益等的影响.实验发现,CH4体积分数增加,会使CH4转化率升高,CO2转化率先增后减.流量增加,会使CH4、CO2转化率整体呈下降趋势.流量为12,L/min时,CH4、CO2最高转化率分别为43.78%、42.66%,H2、CO最高选择性分别为44.20%、32.48%,H2/CO体积比范围为0-1.56.单位摩尔量合成气所需电耗最低为195.06,kJ/mol,能量转化效率最高为46.535%.

Syngas generation from dry reforming of methane using a rotating gliding arc plasma co-driven by tangential flow and magnetic field was investigated. The effect of discharge voltage,CH4 concentration and gas flow on performance of reactant conversion,product selectivity and economic efficiency was studied. Results show that,as CH4 concentration grows,CH4 conversion increases,and CO2 conversion first increases and then decreases. As gas flow rate increases,CH4 and CO2 conversions both drop. When the gas flow rate is 12,L/min,the maximum conversion of CH4 and CO2 are 43.78% and 42.66% respectively. Meanwhile,the maximum selectivities of H2 and CO are44.20% and 32.48% respectively,and H2/CO ratio ranges from 0 to 1.56. The minimum specific energy is 195.06kJ/mol and the maximum energy conversion efficiency is 46.535%.