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Produce Low Aromatic Contents with Enhanced Cold Properties of Hydrotreated Renewable Diesel Using Pt/Alumina-Beta-Zeolite: Reaction Path Studied via Monoaromatic Model Compound

Author

Listed:
  • Shanmugam Palanisamy

    (Department of Chemical Engineering, Kongu Engineering College, Erode 638060, India)

  • Börje Sten Gevert

    (Kempross AB, Larseredslyckor 14, 42539 Hisingskärra, Sweden)

  • Pranav Sankaran

    (Department of Chemical Engineering, Kongu Engineering College, Erode 638060, India)

  • Kannan Kandasamy

    (Department of Chemical Engineering, Kongu Engineering College, Erode 638060, India)

Abstract

In this present work, Hydro-dearomatisation of toluene and hydro-isomerisation of n-hexadecane (n-C 16 ) in ultralow sulphur diesel (ULSD) using Pt-Cl/H-Beta and Pt/ H -Beta catalyst was investigated in a continuous down-flow trickle-bed reactor (DFTBR), and the physicochemical properties of products were studied. The catalytic effect on 40:60 wt% of H -beta-zeolite ( H -β) and binder–aluminahydrochlorite extruded was characterized in scanning electron microscopy, nitrogen adsorption and coke testing. The study showed that 80 to 95 wt% of middle distillates recovered in ULSD on elevated temperature between 230 and 270 °C at 5 MPa. With a higher residence time of feed, the middle distillate recovered with 2.2 v / v % of aromatics and −32 °C of cloud point. In the model compound investigation of toluene and n-C 16 , it was observed that absorption of aromatic ring inhibits the rate of isomerisation; particularly it reduces the yield of branching and rearrangement of n-C 16 . Also, Cl-incorporated H -β extrudate enhanced the ring saturation and suppressed the reaction path in oligomerisation and cyclisation of paraffin. This methodology achieved asingle-stage upgrading technique involved in the delivery of commercial diesel in the market with low cloud point and aromatic content.

Suggested Citation

  • Shanmugam Palanisamy & Börje Sten Gevert & Pranav Sankaran & Kannan Kandasamy, 2019. "Produce Low Aromatic Contents with Enhanced Cold Properties of Hydrotreated Renewable Diesel Using Pt/Alumina-Beta-Zeolite: Reaction Path Studied via Monoaromatic Model Compound," Energies, MDPI, vol. 12(15), pages 1-15, July.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:15:p:2853-:d:251252
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    References listed on IDEAS

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    1. Stephen J. Reaume & Naoko Ellis, 2013. "Use of Isomerization and Hydroisomerization Reactions to Improve the Cold Flow Properties of Vegetable Oil Based Biodiesel," Energies, MDPI, vol. 6(2), pages 1-15, January.
    2. Zhijun Zhang & Charles U. Pittman & Shujuan Sui & Jianping Sun & Qingwen Wang, 2013. "Catalytic Upgrading of Bio-Oil by Reacting with Olefins and Alcohols over Solid Acids: Reaction Paths via Model Compound Studies," Energies, MDPI, vol. 6(3), pages 1-22, March.
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