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Continuous Hydrogenation of Toluene over Sr‐ and PEG800‐Modified Ni/ γ ‐Al 2 O 3 Catalysts
Author(s) -
Chu Hailong,
Li Na,
Niu Libo,
Liu Chen,
Qiu Mande,
Bai Guoyi
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400543
Subject(s) - methylcyclohexane , toluene , catalysis , nickel , selectivity , ethylene glycol , nial , dispersion (optics) , ethylene , chemistry , inorganic chemistry , materials science , chemical engineering , nuclear chemistry , organic chemistry , intermetallic , alloy , physics , optics , engineering
A series of γ ‐Al 2 O 3 ‐supported nickel‐based catalysts were evaluated in continuous hydrogenation of toluene. Sr‐ and poly(ethylene glycol) 800 (PEG800)‐modified Ni/ γ ‐Al 2 O 3 catalysts provided the best activity with high conversion of toluene and selectivity for methylcyclohexane which was ascribed to the addition of Sr and PEG800 during the preparation process, resulting in smaller and highly dispersed Ni species on the surface and in the pores of γ ‐Al 2 O 3 . Furthermore, the formation of SrCO 3 and NiAl 2 O 4 is believed to be advantageous for the dispersion and stabilization of the active Ni species, accounting for its good stability.