考察了催化剂中杂质Na和Fe对甲硫醚合成的催化行为的影响。Na含量越低,甲醇分解率越高。Na的质量分数在0.2%~0.4%时,甲硫醚产率最高,甲硫醇生成率最低;Na含量进一步增大时,甲醇双分子脱水生成甲醚的量增加,甲硫醇产率增高,生成甲硫醚的选择性下降。随着Fe含量的增大,甲醇分解反应加剧,硫醇产率增高,甲硫醚产率下降。 The effects of Na and Fe impurities on the catalytic performance of methyl sulfide synthesis were investigated. The lower the Na content, the higher the methanol decomposition rate. When the mass fraction of Na is between 0.2% and 0.4%, the yield of methyl sulfide is the highest, and the formation rate of methanethiol is the lowest. When the content of Na increases further, the amount of methyl ether produced by dehydration of methanol increases and the yield of methyl mercaptan increases , Resulting in the selective reduction of dimethylsulfide. With the increase of Fe content, the decomposition reaction of methanol aggravated, the yield of mercaptan increased, and the yield of methyl sulfide decreased.