Two stages upgrading of bio‑oil through esterification and hydrodeoxygenation reactions using Fe2O3‑CoO supported catalyst

Pulungan, Ahmad Nasir and Goei, Ronn and Kembaren, Agus and Nurfajriani and Sihombing, Junifa Layla and Gea, Saharman and Wong, Hana Ria and Hasibuan, Muhammad Irvan and Rahayu and Tok, Alfred Ling Yook (2023) Two stages upgrading of bio‑oil through esterification and hydrodeoxygenation reactions using Fe2O3‑CoO supported catalyst. Biomass Conversion and Biorefinery. ISSN 2190-6815 (p) ; 2190-6823 (e)

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Abstract

Bio-oil contains many oxygenated compounds, as well as high acid and water content, which can reduce the stability of its components and have poor overall physicochemical properties. In this study, the quality of bio-oil produced from the pyrolysis of oil palm fronds was enhanced through a hydrodeoxygenation (HDO) reaction that was preceded by esterification as a pre-treatment. The catalyst used in the HDO reaction is mixed metal oxide (Fe2O3-CoO) anchored within zeolite mordenite (Fe2O3-CoO/Mor). The catalysts were characterized using XRD, SEM-EDX, and BET methods. The presence of metal oxides on the surface of mordenite increases the activity of the catalyst in producing liquid products while reducing the formation of coke. Upgrading of bio-oil has improved the physicochemical properties of bio-oil compared to the one-stage upgrading process. The analysis of product showed that the C and H content increased from 11.5 to 23.5 wt% and from 9.76 to 11.2 wt%, respectively. On the other hand, the O content decreased from 78.7 to 65.2 wt% with a degree of deoxygenation of 59.8%. Moreover, higher heating value (HHV) of the bio-oil increased by 38% from 11.6 to 16.0 MJ/kg.

Item Type: Article
Keywords: Hydrodeoxygenation; Esterification; Palm frond bio-oil; Mordenite; Metal oxide
Subjects: Q Science > QD Chemistry > QD415 Biochemistry
Q Science > QD Chemistry > QD450 Physical and theoretical chemistry
Q Science > QD Chemistry > QD71 Analytical chemistry
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia
Depositing User: Mrs Harly Christy Siagian
Date Deposited: 08 Jun 2023 09:03
Last Modified: 08 Jun 2023 09:03
URI: https://digilib.unimed.ac.id/id/eprint/52529

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