Lakshmana Rao Jeeru, Snigdha Senapati, Narendra Singh Chaudhary, B. V. S. Praveen, Narayan C. Pradhan
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引用次数: 0
Abstract
Toluene disproportionation was carried out over modified HZSM-5 to produce benzene and xylenes. The modification of HZSM-5 was effected by depositing silica on the zeolite, which reduced pore size. Reduction in pore size of HZSM-5 increased p-xylene selectivity from 27 to 64% at 15% silica loading. The influences of various process parameters, such as temperature and space–time, on toluene conversion and p-xylene selectivity were studied with the 15% silica loaded HZSM-5 catalyst. The experiments were carried out in the kinetic zone with negligible mass transfer resistances. A suitable kinetic model was proposed, and the kinetic data was fitted into the model. From the estimated kinetic constant, the activation energy of the disproportionation reaction was determined to be 115 kJ/mol.
期刊介绍：
Reaction Kinetics, Mechanisms and Catalysis is a medium for original contributions in the following fields:
-kinetics of homogeneous reactions in gas, liquid and solid phase;
-Homogeneous catalysis;
-Heterogeneous catalysis;
-Adsorption in heterogeneous catalysis;
-Transport processes related to reaction kinetics and catalysis;
-Preparation and study of catalysts;
-Reactors and apparatus.
Reaction Kinetics, Mechanisms and Catalysis was formerly published under the title Reaction Kinetics and Catalysis Letters.
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