HZSM-5 pelletized and modified with α-Ca3(PO4)2 and HPO42− as a catalyst for methanol conversion

Ikai, Shigeru; Okamoto, Manabu; Nishioka, Hitoshi; Miyamoto, Tsutomu; Matsuzaki, Kenji M.; Suzuki, Kunio; Kiyozumi, Yoshimichi; Sano, Tsuneji; Shin, Shigemitsu

doi:10.1016/s0166-9834(00)81429-3

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Cited by 7 publications

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“…High selectivity of propylene has been obtained on modified ZSM-5 zeolites [2,3]. Phosphorusmodified ZSM-5 has been extensively investigated in methanol conversion [4][5][6][7][8][9][10][11][12][13][14], and catalytic cracking reaction [15][16][17][18][19][20]. The structure of p-modified ZSM-5 has been characterized by many research groups [21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Conversion of Methanol to Hydrocarbons over Phosphorus-modified ZSM-5/ZSM-11 Intergrowth Zeolites

et al. 2009

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The phosphorus-modified ZSM-5/ZSM-11 intergrowth zeolites has been used for the catalytic conversion of methanol to hydrocarbons. As evidenced by MAS NMR and NH 3 -TPD, the modification by phosphorus leads a distinct decrease of the BrØnsted acid sites and the acid strength of the catalysts in comparison with the parent ZSM-5/ZSM-11, which causes a dramatic improvement of the selectivity towards propylene. At 400°C, the ratio of propylene to ethylene can reach about 8.0. A comparison with the conventional ZSM-5 zeolite has been also carried out in the present study.

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