期刊
COMBINATORIAL CHEMISTRY & HIGH THROUGHPUT SCREENING
卷 24, 期 4, 页码 485-489出版社
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1386207323666200720103321
关键词
Light olefins; methanol to olefins; SAPO-34; dry gel conversion; hard template; hierarchical structure
In this study, SAPO-34 particles were synthesized using different methods, with the DG conversion method showing enhanced catalytic performance. Using CNT in the synthesis procedure further reduces particle size and results in a hierarchical structure, significantly improving catalytic performance.
In the present study, SAPO-34 particles were synthesized using hydrothermal ( HT) and dry gel (DG) conversion methods in the presence of diethyl amine (DEA) as an organic structure directing agent (SDA). Carbon nanotubes (CNT) were used as a hard template in the synthesis procedure to introduce transport pores into the structures of the synthesized samples. The synthesized samples were characterized with different methods to reveal the effects of synthesis method and using hard template on their structure and catalytic performance in methanol to olefin reaction (MTO). DG conversion method results in smaller particle size in comparison with hydrothermal method, resulting in enhancing catalytic performance. On the other side, using CNT in the synthesis procedure with DG method results in more reduction in particle size and formation of hierarchical structure, which drastically improves catalytic performance.
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