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在常温常压条件下 ,利用电晕放电 ,使 CH4 - CO2 混合气转化生成合成气 .结果表明 ,该过程中 CH4 和 CO2 的转化率与反应体系能量密度、原料气配比和流速等有关 .在 0 .1MPa气压 ,能量密度为 10 50 k J/ mol(反应体系温度低于 50 0 K) ,n( CH4 )∶ n( CO2 ) =1∶ 2条件下 CH4 和 CO2 的转化率分别超过 60 %和 50 % ,超出了热力学平衡转化率的限制 .通过调配原料的配比 ,可以得到不同 n( H2 ) / n( CO)比值的产物 .对该体系的反应机理进行了探讨 .
Under normal temperature and pressure conditions, the corona discharge was used to convert the CH4 - CO2 mixture into syngas, which showed that the conversion of CH4 and CO2 was related to the energy density of the reaction system, feed gas ratio and flow rate. Under the conditions of 0.1 MPa pressure, energy density of 10 50 kJ / mol (the reaction temperature is lower than 50 0 K) and the conversion of CH4 and CO2 under the conditions of n (CH4): n (CO2) = 1: 2, % And 50%, respectively, which are beyond the limit of thermodynamic equilibrium conversion.Different n (H2) / n (CO) ratio products can be obtained by adjusting the ratio of raw materials.The reaction mechanism of this system is discussed.