... 馏 ;乙 苯 ;烷 基 化 ;回 流 比 ; M CM - 22沸 石 [gap=15397]Keywords] catalytic d istillation; ethylbenzene; alky lation; reflux ratio; M CM - 22 zeolite ...
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A review is presented on benzene ring alkylation of toluene with methanol for p-xylene synthesis over modified ZSM-5 type zeolites in the last 30 years.
综述了近三十年来国内外有关在改性ZSM-5沸石催化剂上,甲苯、甲醇苯环烷基化制备对二甲苯反应的研究状况。
参考来源 - 改性ZSMThe reactions,enhancing octane number of FCC gasoline,were discussed. Besides the hydrodesulfurization activity,the catalyst should have the catalytic activities of isomerization,aromatization,hydrogen transfer,alkylation and selective cracking.
探讨了提高FCC汽油辛烷值的各种反应,提出了在研制FCC汽油加氢脱硫催化剂时,应考虑催化剂的异构化、芳构化、氢转移、烷基化和选择性裂化等功能;通过提高烯烃和烷烃的支链化度,将部分烯烃转化为高辛烷值的芳烃,或将低辛烷值的正构烃类选择性异构等措施,达到保持加氢FCC汽油辛烷值的目的,并对研制的催化剂进行了验证。
参考来源 - FCC汽油加氢脱硫及芳构化催化剂的设计与验证·2,447,543篇论文数据,部分数据来源于NoteExpress
以上来源于: WordNet
N the attachment of an alkyl group to an organic compound, usually by the addition or substitution of a hydrogen atom or halide group 烷化; 烃化
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