催化合成甲基叔丁基醚的宏观动力学研究

Study on macrokinetics of catalystic synthesis methyl tertiary butyl ether

在特制的高压釜中，对工业条件下催化合成甲基叔丁基醚（ＭＴＢＥ）进行了宏观动力学研究．当反应液中异丁烯浓度为２．２ｍｏｌ／Ｌ，甲醇与异丁烯的摩尔比为１．２∶１，温度为５８～７４℃，催化剂为大孔“Ｓ”型酸性树脂时，其动力学方程式为－ｒＡ＝１．８６×１０７ｅｘｐ（－５６．１８／ＲＴ）ｃＡ－３．２８×１０１０ｅｘｐ（－８５．６５／ＲＴ）ｃＭ．

The macrokinetics about catalystic synthesis of methyl tertiary butyl ether is studied in a special pressure caldran under industrial conditions.The kinetic equation is determined as follows:-r A=1.86×10 7exp(-56.18/RT)c A-3.28×10 10 exp(-85.65/RT)c M,where the concentration of isobutene in the reaction liquid is 2.2 mol/L,the molar ratio of methanol to isobutene is 1.2∶1,the reaction temperature is 58～74℃,and S type macroporous acidicresin is used as the catalyst.