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Pathway to Ethylbenzene Formation in Side-Chain Alkylation of Toluene with Methanol Over Cesium Ion-Exchanged Zeolite X

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Abstract

To control the styrene to ethylbenzene ratio in the products of side-chain alkylation of toluene with methanol over Cs-X-based catalysts, pathway to ethylbenzene was examined. Styrene underwent transfer hydrogenation with methanol much faster than hydrogenation with hydrogen to ethylbenzene. Addition of Cs2O and ZrB2O5 to Cs-X enhanced and suppressed, respectively, the transfer hydrogenation.

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Acknowledgments

The financial support of King Abdulaziz City for Science & Technology (KACST) under Project #AR-30-253 is acknowledged. The authors appreciate the support from the Ministry of Higher Education, Saudi Arabia in establishment of the Center of Research Excellence in Petroleum Refining and Petrochemicals at KFUPM. The authors thank Mr. Khurshid Alam for technical assistance in setting up the reactor system and analytical works. H. H. thanks the Japan Cooperation Center, Petroleum (JCCP) for financial support under the High-level Researcher Dispatching Program, JCCP.

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Authors and Affiliations

  1. Center of Research Excellence in Petroleum Refining and Petrochemicals, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia

    Hideshi Hattori, Wahab O. Alabi, B. Rabindran Jermy, Abdullah M. Aitani & Sulaiman S. Al-Khattaf

  2. Catalysis Research Center, Hokkaido University, Sapporo, 001-0021, Japan

    Hideshi Hattori

Authors
  1. Hideshi Hattori
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  2. Wahab O. Alabi
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  3. B. Rabindran Jermy
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  4. Abdullah M. Aitani
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  5. Sulaiman S. Al-Khattaf
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Correspondence to Hideshi Hattori.

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Hattori, H., Alabi, W.O., Jermy, B.R. et al. Pathway to Ethylbenzene Formation in Side-Chain Alkylation of Toluene with Methanol Over Cesium Ion-Exchanged Zeolite X. Catal Lett 143, 1025–1029 (2013). https://doi.org/10.1007/s10562-013-1049-8

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  • DOI: https://doi.org/10.1007/s10562-013-1049-8

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