Effects of Zeolite Supports on the Production of Fuel-Range Hydrocarbons in the Hydrotreatment of Various Vegetable Oils with Platinum-Based Catalysts.

Author(s) Kim, T.W.; Kim, E.Sang; Kim, J.R.; Jeong, S.Y.; Kim, C.U.; Hwang, K.R.; Jeon, J.K.
Journal J Nanosci Nanotechnol
Date Published 2019 Apr 01

The effects of catalyst supports on catalyst performance in the hydrotreatment of vegetable oils (to produce fuel-range hydrocarbons such as gasoline, jet fuel, and diesel) were investigated, using three types of zeolites (ZSM-5, HY, and zeolite-beta (BEA)) that differ in their silica/alumina ratios. Structural characterization of the catalysts was performed using ICP, XRD, BET, TEM, and NH₃-TPD. Catalytic tests were carried out in a fixed-bed reaction system at 400 °C and 50 bar. In the hydrotreatment of soybean oil, higher conversions into liquid hydrocarbons and fuel-range hydrocarbons were found when supports with lower Si/Al₂ ratios were used. Specifically, Pt/BEA (Si/Al₂ = 25) produced the highest conversion into liquid products (72%) and the highest selectivity for hydrocarbons in the jet fuel (46%) and diesel (51%) fuels. A Pt loading amount of 3 wt% in this catalyst gave the best catalytic performance because of the optimal balance between acidic and metallic sites. Finally, the kinds of vegetable oils in the hydrotreatment performance over Pt/BEA (Si/Al₂ = 25) affected the order; waste-cooking oil > jatropha oil > soybean oil.

DOI 10.1166/jnn.2019.16111
ISSN 1533-4880
Citation J Nanosci Nanotechnol. 2019;19(4):24432448.

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