化工学报2001，Vol.52Issue(4)：338-342,5.
甲醇和异丁烯在HBT6分子筛上的反应机理
MECHANISM OF REACTION OF METHANOL AND ISOBUTENE OVER ZEOLITE HBT6
摘要
Abstract
The adsorption of methanol, isobutene and MTBE on zeolite HBT6 was investigated using IR spectroscopy. The mechanism of synthesis of MTBE from methanol and isobutene over zeolite HBT6 was studied based on adsorptive states of reactants and product over the catalyst and intrinsic kinetic experiments. Methanol, isobutene and MTBE were probably adsorbed on OH groups of the zeolite, and adsorbed isobutene molecules were π-complexes which could, easily, turn into tertiary butyl C+. Reaction of methanol with isobutene over the zeolites takes place according to the L-H mechanism and the rate-determining step is the reaction of adsorbed methanol with adsorbed isobutene. TPD following adsorption showed that some of the methanol molecules were strongly adsorbed on the catalyst. It might be a disadvantageous factor.关键词
MTBE分子筛催化剂反应机理分类
化学化工引用本文复制引用
李永红,余少兵,韩森,陈洪钫,闵恩泽..甲醇和异丁烯在HBT6分子筛上的反应机理[J].化工学报,2001,52(4):338-342,5.基金项目
中国石化总公司资助项目 （）
