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- Title
W Modified HY Zeolite as Catalyst for Alkylation of Aromatic.
- Authors
Kuai, Leiting; Wang, Mengke; Meng, Xuan; Shi, Li; Liu, Naiwang
- Abstract
HY zeolite is commonly considered to have a suitable pore structure for alkylation of aromatic. However, coke deposition results in catalytic activity falling rapidly because of its strong acidity. Herein, we prepared WO3/HY zeolite catalysts by liquid phase deposition method with phosphotungstic acid as the precursor, and their catalytic activities were evaluated by alkylation of naphthalene and n-tetradecene (C14H28). Characterizations showed that WO3 increased acid density and optimized the distribution of surface acidity and pore structure. The process not only increases the W5+ content which can increase the catalytic activity, but also reduces the reaction temperature to extend the service life. Both advantages of the catalysts achieved 96.12% conversion of naphthalene and 97.46% selectivity of monoalkylnaphthalene.
- Subjects
ALKYLATION; ZEOLITE catalysts; CATALYTIC activity; PHOSPHOTUNGSTIC acids; POROSITY; SERVICE life; TUNGSTEN trioxide; ZEOLITES
- Publication
Catalysis Letters, 2022, Vol 152, Issue 8, p2480
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-021-03820-4