Article

Korean Journal of Chemical Engineering

, Volume 3, Issue 1, pp 31-37

Alkylation of toluene with methanol over heteropoly acid/Y-zeolite catalysts

  • Chang Yeop HwangAffiliated withDepartment of Chemical Technology, College of Engineering, Seoul National University
  • , Jong Woon KwakAffiliated withDepartment of Chemical Technology, College of Engineering, Seoul National University
  • , Wha Young LeeAffiliated withDepartment of Chemical Technology, College of Engineering, Seoul National UniversityDepartment of Chemical Engineering, College of Engineering, Seoul National University
  • , Ho-In LeeAffiliated withDepartment of Chemical Technology, College of Engineering, Seoul National University

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Abstract

Alkylation of toluene with methanol has been studied in a fixed bed reactor with a continuous flow system. As a promoter, heteropoly acids and their metal salts were impregnated on Y-zeolite. Catalyst impregnated with lower amount of heteropoly acid showed higher initial activity, and the catalytic activity was enhanced by more electronegative metal ion of heteropoly acid salt impregnated on Y-zeolite, Catalyst calcined at lower temperature showed higher initial activity, but its deactivation rate was faster than that calcined at higher temperature. Catalyst impregnated with BiPMo12O40 showed a good activity and a good regeneration ability of catalytic activity.