Dolomite catalyst for fast pyrolysis of waste cooking oil into hydrocarbon fuel

Yorinda Buyang; Reva Edra Nugraha; Holilah Holilah; Hasliza Bahruji; Suprapto Suprapto; Aishah Abdul Jalil; Muryani Muryani; Didik Prasetyoko

South African Journal of Chemical Engineering (Jul 2023)

Dolomite catalyst for fast pyrolysis of waste cooking oil into hydrocarbon fuel

Yorinda Buyang,
Reva Edra Nugraha,
Holilah Holilah,
Hasliza Bahruji,
Suprapto Suprapto,
Aishah Abdul Jalil,
Muryani Muryani,
Didik Prasetyoko

Affiliations

Yorinda Buyang: Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya, 60111, Indonesia; Department of Chemistry Education, Faculty of Teacher Training and Education, Musamus University, Merauke, Papua, 99600, Indonesia
Reva Edra Nugraha: Department of Chemical Engineering, Faculty of Engineering, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Surabaya, 60294, Indonesia
Holilah Holilah: Research Center for Biomass and Bioproducts, National Research and Innovation Agency of Indonesia (BRIN), Cibinong, 16911, Indonesia
Hasliza Bahruji: Centre of Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, BE 1410, Brunei
Suprapto Suprapto: Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya, 60111, Indonesia
Aishah Abdul Jalil: Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM, Skudai, Johor Bahru, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia, Skudai, Johor Bahru, Johor, 81310, Malaysia
Muryani Muryani: Department of Municipal Waste, Blitar District, East Java, Indonesia
Didik Prasetyoko: Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya, 60111, Indonesia; Corresponding author.

Journal volume & issue: Vol. 45
pp. 60 – 72

Abstract

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Dolomite as the catalyst for pyrolysis of waste cooking oil (WCO) was investigated to produce hydrocarbon fuels. Optimization of pyrolysis parameters i.e. time, temperature and catalysts loading, achieved high selectivity of WCO to diesel hydrocarbon, compared to thermal pyrolysis that produced mainly carboxylic acids. Dolomite catalysed deoxygenation of fatty acid in WCO into hydrocarbon, consequently accelerating the pyrolysis time to 75 min. Bio-oil at 68.06% yield with 57.27% selectivity towards diesel and gasoline hydrocarbons was obtained at 450 °C while using 6% of dolomite. Dolomite exhibited partial phase separation into dolomite/CaCO3 mixtures within 15 min of pyrolysis, initiated by the generated CO2 during pyrolisis of WCO. The catalyst is stable for up to three reaction cycles suggesting the activity was achieved from the synergy between the dolomite/CaCO3 phases.

Published in South African Journal of Chemical Engineering

ISSN: 1026-9185 (Print)
Publisher: Elsevier
Country of publisher: South Africa
LCC subjects: Technology: Chemical technology: Chemical engineering
Website: https://www.journals.elsevier.com/south-african-journal-of-chemical-engineering/

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