10.30495/ijc.2022.1965421.1961

Diisopropyl Ether Production via Isopropanol Catalytic Dehydration over Zirconium Phosphate Modified Natural Zeolite

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  • Hasanudin Hasanudin*1,
  • Wan Ryan Asri2,
  • Jeniva Rindi Anindia2,
  • Suheryanto Suheryanto2,
  • Zainal Fanani2,
  • Nino Rinaldi1,
  • Muhammad Al Muttaqii1,
  1. Research Center for Chemistry, National Research and Innovation Agency(BRIN-Indonesia), Science and Technology Park B.J. Habibie, Serpong, South Tangerang 15314, Banten Indonesia
  2. Biofuel Research Group, Faculty of Mathematics and Natural Science, Universitas Sriwijaya, Indralaya 30662, Indonesia
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Published in Issue 2023-12-22

How to Cite

Hasanudin, H., Asri, W. R., Anindia, J. R., Suheryanto, S., Fanani, Z., Rinaldi, N., & Al Muttaqii, M. (2023). Diisopropyl Ether Production via Isopropanol Catalytic Dehydration over Zirconium Phosphate Modified Natural Zeolite. Iranian Journal of Catalysis, 12(4). https://doi.org/10.30495/ijc.2022.1965421.1961
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Abstract

In this work, diisopropyl ether (DIPE) was produced through catalytic dehydration of isopropanol over zirconium phosphate-modified phosphate modified natural zeolite. The catalyst was prepared via the wet impregnation method. They were tested at 150 ËC for 3 hours under a reflux system. The effect of zeolite-Zr(H2PO4)4 metal loading and zeolite-Zr without phosphate incorporation on dehydration isopropanol was also assessed. The results showed the natural zeolite was successfully modified as confirmed by XRD, FTIR, SEM-EDX, N2 physisorption, and catalyst acidity by the gravimetric technique. The highest isopropanol conversion (66.73%) was accomplished by 8 mEq/g zeolite-Zr(H2PO4)4 followed by the DIPE yield and selectivity up to 35.81% and 47.8%, respectively. Further reusability investigation showed that zeolite-Zr(H2PO4)4 catalyst provided adequate reusability up to the fourth reused with relatively decreased catalytic activity towards isopropanol dehydration.   Highlights
  • The natural zeolite was modified via the wet impregnation method.
  • The natural zeolite was successfully modified as confirmed by XRD, FTIR, SEM-EDX, N2 physisorption, and catalyst acidity measurements.
  • The zeolite-Zr(H2PO4)4 had higher catalytic activity than zeolite-Zr towards isopropanol dehydration
  • The zeolite-Zr(H2PO4)4 catalyst (8 mEq/g metal loading) exhibited the highest isopropanol conversion, DIPE yield and selectivity, respectively.
  • Zeolite-Zr(H2PO4)4 catalyst provided adequate reusability up to the fourth reused towards isopropanol dehydration.

Keywords

  • Diisopropyl ether,
  • Isopropanol conversion,
  • Modification,
  • Zeolite,
  • Zirconium phosphate.
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