CHA/AEI intergrowth materials as catalysts for the Methanol-to-Olefins process
作者： Bjørnar Arstad , Anna Lind , Sachin Chavan , Martin P. Attfield , Duncan Akporiaye
DOI: 10.1016/J.APCATA.2015.06.027
关键词:
摘要: Abstract A series of SAPO-34/SAPO-18 intergrowth materials were prepared with a range silicon content from 0.5 to 7.0%, where low levels resulted in SAPO-18 and higher CHA/AEI intergrowths. These tested for their performance the Methanol-to-Olefins reaction. The acidity catalysts was related content, level gave greater acid site density. catalytic activity increased increasing There consequently heavy hydrocarbons at end reaction content. selectivity as function overall time on stream similar all catalysts, but given conversion, C 2 / 3 ratio lower AEI Catalysts cages had 4 products than other due larger size internal cage. showed strong correlation cage shape, making high suitable propylene ratios are desired.
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