石油学报（石油加工）
石油學報（石油加工）
석유학보（석유가공）
ACTA PETROLEI SINICA(PETROLEUM PROCESSING SECTION)
2005年
5期
96-100
,共5页
甲硫醚%催化剂%杂质%催化反应
甲硫醚%催化劑%雜質%催化反應
갑류미%최화제%잡질%최화반응
dimethyl thioether%catalyst%impurity%catalytic reaction
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.
攷察瞭催化劑中雜質Na和Fe對甲硫醚閤成的催化行為的影響.Na含量越低,甲醇分解率越高.Na的質量分數在0.2%～0.4%時,甲硫醚產率最高,甲硫醇生成率最低;Na含量進一步增大時,甲醇雙分子脫水生成甲醚的量增加,甲硫醇產率增高,生成甲硫醚的選擇性下降.隨著Fe含量的增大,甲醇分解反應加劇,硫醇產率增高,甲硫醚產率下降.
고찰료최화제중잡질Na화Fe대갑류미합성적최화행위적영향.Na함량월저,갑순분해솔월고.Na적질량분수재0.2%～0.4%시,갑류미산솔최고,갑류순생성솔최저;Na함량진일보증대시,갑순쌍분자탈수생성갑미적량증가,갑류순산솔증고,생성갑류미적선택성하강.수착Fe함량적증대,갑순분해반응가극,류순산솔증고,갑류미산솔하강.
The effects of Fe and Na impurities containing γ-Al2O3 catalyst on catalytic reaction of dimethyl thioether synthesis were investigated. The results indicated that the decomposition reaction of methyl alcohol was exacerbated as the Fe content increased. The mercaptan yield increased while dimethyl thioether yield decreased. The rate of decomposition of methyl alcohol increased as the Na content reduced. Both the maximum yield of dimethyl thioether and the minimum yield of methyl hydrosulfide were obtained in the Na mass fraction range of 0. 2 %-0.4%. When the Na content further increased, the yield of methy hydrosulfide increased, the selectivity of dimethyl thioether decreased.
