Effect of Thermal Treatment and Nickel-Salt Modification on the Catalytic Performance of the Illite-Kaolinite Clay from Bukittinggi of West Sumatra in Palm Oil Transesterification

Abstract

The effect of thermal and chemical modification on the catalytic performance of illite-kaolinite clay (obtained from Bukittinggi, West Sumatra) in the transesterification of palm oil was investigated. Characterization with XRD, XRF and FTIR indicated a slight change in the composition of the crystal phase and the Si/Al molar ratio after such clay was calcined at 450 °C. XRF measurements also confirm that after treatment with two nickel salts, the natural clay absorbs more nickel sulfate than nitrate, while temperature played an important role in increasing the performance of the clay in loading nickel about 2 times bigger at a higher temperature. All clay-based materials prepared in this study were tested for their catalytic activity and selectivity in the transesterification of palm oil to produce Fatty Acid Methyl Ester (FAME) using the previously reported procedure. Chemical modification of clay samples with nickel sulfate and nickel nitrate was found to increase the catalytic performance of the clay in producing FAME from 38 to about 60 % while thermally treated at 450 °C yielded slightly higher to about 67 %. In terms of selectivity, all clay-based catalysts in this study gave almost the same amount of saturated and unsaturated FAME

Syukri and all members of the research team would like to thank LPPM of Andalas University who have financially supported this research by so called PTU-KRP2GB-UNAND Research Grant with contract number T/23/UN.16.17/PP.JS-PTU-KRP2GB-Unand/LPPM/2021

Please cite this article as:

Syukri, Febiola Fifi, Rahmayeni, et al. Effect of thermal treatment and nickel-salt modification on the catalytic performance of the illite-kaolinite clay from Bukittinggi of West Sumatra in palm oil transesterification. Herald of the Bauman Moscow State Technical University, Series Natural Sciences, 2022, no. 2 (101), pp. 125--136. DOI: https://doi.org/10.18698/1812-3368-2022-2-125-136

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