In-situ operando and ex-situ study on light hydrocarbon-like-diesel and catalyst deactivation kinetic and mechanism study during deoxygenation of sludge oil

G. AbdulKareem-Alsultan and N. Asikin-Mijan and Laith K. Obeas and Robiah Yunus and Siti Zulaika Razali and Aminul Islam and Yap, Taufiq Yun Hin (2021) In-situ operando and ex-situ study on light hydrocarbon-like-diesel and catalyst deactivation kinetic and mechanism study during deoxygenation of sludge oil. Chemical Engineering Journal, 429. ISSN 1385-8947

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Abstract

Deoxygenation is a highly significant means of generating oxygen-free hydrocarbon fuels from liquid biomass. This study will deoxygenate sludge palm oil (FFA % = 42.35%) in an H2-free atmosphere through a series of Mn-Co supported AC catalysts (MnO0.5CoO0.5/AC, Mn0.5Co0.5S/AC and Mn0.5Co0.5P/AC). The XAS in-situ results confirm that the preparation method of formation the catalyst structure was successful. The catalytic results show that by oligomerizing unsaturated fatty acids produced during Diels-Alder reactions or radical additions, the MnO0.5)CoO0.5/AC can largely enhance the production of heavy products. It is a straightforward process to transform these heavy products into coke species, which enables the rapid deactivation of the catalyst. This study additionally showed that AC-supported sulphide and phosphide Mn-Co catalysts are hugely beneficial for steadily and reliably acquiring an above-average yield of diesel-range hydrocarbons at substantially reduced temperatures whilst simultaneously effectively impeding catalyst deactivation during deoxygenation. The deactivation kinetic study conform that the deactivation happens by the coke formation and flow the second order deactivation.

Item Type:	Article
Keyword:	Manganese , Cobalt , Catalyst deactivation , Steady-state rate , Deoxygenation
Subjects:	Q Science > Q Science (General) > Q1-390 Science (General) T Technology > TP Chemical technology > TP1-1185 Chemical technology
Department:	FACULTY > Faculty of Science and Natural Resources
Depositing User:	DG MASNIAH AHMAD -
Date Deposited:	04 Mar 2022 15:46
Last Modified:	04 Mar 2022 15:46
URI:	https://eprints.ums.edu.my/id/eprint/31827

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