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通过在催化剂制备过程中和在原料气中分别引入氯化物,研究了氯对CH_4在Li/MgO催化剂上氧化偶合反应的影响。在常压、T=750℃、P_(CH_4)=23kPa、P_(CH_4)/P_(O_2)=2、W/F=600g·s·1~(-1)等条件下,C_2烃选择性可达56％,C_2烃收率可达27.7％,且在两种情况下C_2烃中的乙烯含量都在90％以上。
The effects of chlorine on the oxidative coupling of CH_4 over Li / MgO catalysts were investigated by introducing chlorides into the feed gas and the catalyst respectively. Under the conditions of atmospheric pressure, T = 750 ℃, P_ (CH_4) = 23kPa, P_ (CH_4) / P_ (O_2) = 2 and W / F = 600g · s · 1 ~ Up to 56%, C_2 hydrocarbon yield up to 27.7%, and ethylene content in C_2 hydrocarbons above 90% in both cases.