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3 publications

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    Optimization of Process Parameters for Isopropylation of Toluene over Modified Zeolite using Response Surface Methodology

    By Saket Dave, Sanghamitra Barman

    Abstract: Vapor-phase isopropylation of toluene with isopropanol has been investigated in a fixed-bed flow reactor under atmospheric pressure using N2 carrier gas over Cerium modified 13X zeolite catalyst. The main product of this alkylation reaction was p-cymene followed by meta-isomer, while ortho-cymene was negligibly formed. Response surface methodology was used to study the combined effects of temperature, reactant molar ratio and space time on the conversion of toluene and selectivity of …

    Published in Emerging Trends in Chemical Engineering · Vol. 1, Issue 1, 2014 · pp. 22–30 Read article

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    Role of Solid Acid Catalyst in Isopropylation Reaction

    By Sanghamitra Barman

    Abstract: Cumene synthesis was carried out by the reaction of benzene with isopropyl alcohol in the vapour phase over rare earth metal modified 13X zeolite. Zeolite modification was done by exchanging sodium ions of the zeolite with cerium ions to vary the acidity of the catalyst in the range of 0.25‑1.36 meq/g. The synthesis was carried out over a wide range of operating conditions. The synthesis conditions were optimized by studying …

    Published in Journal of Catalyst & Catalysis · Vol. 2, Issue 2, 2015 · pp. 19–26 Read article

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    Catalytic Performance of Fe Modified Zeolite Beta for Synthesis of Xylene

    By Sanghamitra Barman, Karan Kumar, Gopinath Halder

    Abstract: The catalytic performance of metal exchanged zeolite for the synthesis of xylene was determined in the present investigation. The experiments were carried out for alkylation of toluene with methanol over Fe modified zeolite beta for the production of xylene in a plug flow reactor. Modification of zeolite beta with Fe brings significant increase in the activity of catalyst and selectivity of the product xylene. A time on stream study showed …

    Published in Journal of Catalyst & Catalysis · Vol. 4, Issue 2, 2017 · pp. 27–34 Read article

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