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Received March 7, 2002
Accepted May 10, 2002
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Alkylation of Benzene with 1-Dodecene over USY Zeolite Catalyst: Effect of Pretreatment and Reaction Conditions
1Catalysis Center for Molecular Engineering, Korea Research Institute of Chemical Technology (KRICT), P.O. Box 107, Yusung, Daejeon 305-600, Korea 2Department of Chemical Engineering, Nanjing University of Technology, Nanjing 210009, Korea
separk@krict.re.kr
Korean Journal of Chemical Engineering, July 2002, 19(4), 607-610(4), 10.1007/BF02699304
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Abstract
Catalytic activity, stability and selectivity of USY zeolite catalyst for alkylation of benzene with 1-dodecene were investigated using a continuous fixed bed high pressure microreactor. It is found that the catalytic activity and stability depend closely on the pretreatment temperature of catalyst and reaction conditions. The best result was obtained at 120 ℃ and 3.0 MPa with 8 molar ratio of benzene to 1-dodecene, and 4 h(-1) weight hourly space velocity of reactant over the catalyst with the pretreatment temperature of 500 ℃. Under this condition, the reaction conversion_x000D_
was nearly 100% and no deactivation was observed within the employed 50 h of time on stream with the selectivity of 2-phenyldodecene being 22%.
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