期刊
MATERIALS TODAY CHEMISTRY
卷 4, 期 -, 页码 45-52出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.mtchem.2016.12.004
关键词
Alkylation; Zeolite; 1-hexene; Benzene; Mesopores; Pore volume
资金
- Sultan Qaboos University, Oman [ORG/Ei/13/013]
- The Research Council of Oman [ORG/Ei/13/013]
In an attempt to convert the carcinogenic benzene which is almost restricted for its use in gasoline, alkylation reaction with olefin 1-hexene has been conducted on various zeolites. Four zeolites having different pore topology and pore size have been applied as solid acid catalysts for effective production of alkylate in a liquid phase, solvent-less low temperature reaction. The textural properties of all the four zeolites (ZSM-5, MOR, BEA, HY) have been characterized for crystal morphology by TEM, crystal structure by XRD and FTIR, BET for surface area, N-2 sorption for porosity and TPD for acidity. Among the zeolite, BEA possessed high surface area (600.61 m(2)/g) and enhanced meso pores volume (0.3956 cm(3)/g) as compared to other zeolite samples. The performance of BEA was also observed to be superior in the liquid phase alkylation of benzene with 1-hexene in a batch reactor under autogenous pressure without using any solvent. At the optimum reaction conditions, the benzene conversion was 86.6 wt% and 3-Phenylhexane, 2-Phenylhexane yield were about 47.9 wt% and 38.7 wt% respectively on this catalyst. The BEA also exhibited longer time-on-stream and reusability performance, thus offers an attractive route for converting benzene into valuable (3-Phenylhexane, 2-Phenylhexane) alkylate product useful for the manufacturing of fine chemicals, dyestuff, detergents and scents. (C) 2017 Elsevier Ltd. All rights reserved.
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