【摘要】 分子筛催化剂在催化异丁烷/丁烯烷基化中具有良好的应用前景,但易失活,需频繁再生。系统总结分子筛催化剂在异丁烷/丁烯烷基化反应中的研究进展,认为烯烃低聚物覆盖活性位、堵塞分子筛孔道是催化剂失活的直接原因。论述了分子筛性能及烷基化反应条件对分子筛失活的影响,指出具有合适B酸强度和数量、易于丁烯低聚物脱附、利于扩散的分子筛催化剂是未来的研究方向。更多还原

【Abstract】 Zeolite catalysts have promising application prospects forisobutane/butene alkylation,but deactivate fast and have to frequently regenerate. Researches about zeolite catalysts forisobutane/butene alkylation have been summarized systematically. Butene oligomers covering active sites or plugging poresis considered to be the direct reason for catalysts deactivation. The influence of zeolite properties and alkylation reaction conditions on catalysts deactivation is discussed. It is pointed out that zeolite catalysts which provide appropriate strength and quantity of Brnsted acid,tend to oligomer desorptionand diffusion are the research trends in the future.更多还原