Catalytic conversion of spent frying oil into biodiesel over raw and 12-tungsto-phosphoric acid modified clay

Ihtisham Wali Khan, Abdul Naeem, Muhammad Farooq, Tahira Mahmood, Bashir Ahmad, Muhammad Hamayun, Zahoor Ahmad and Tooba Saeed

Renewable Energy, 2020, vol. 155, issue C, 181-188

Abstract: In the present work, locally available clay has been utilized to develop cost effective catalyst for biodiesel production from low cost feedstock. The selected clay was modified with different concentrations (5 wt%, 10 wt%, 20 wt%, 30 wt% and 40 wt %) of 12-tungstophosphoric acid (TPA) to enhance the capability of the selected clay in biodiesel production from spent frying oil. The synthesized catalyst was characterized with different analytical techniques to evaluate its physiochemical properties. The result suggested that the catalyst containing 10 wt% 12-tungstophosphoric acid (TPA) loading exhibited good trans-esterification activity to produce maximum biodiesel yield of 96% under the best reaction conditions: oil/methanol molar ratio, 1:10; catalyst amount, 0.7 g; reaction time, 4.5 h and reaction temperature, 85 °C.

Keywords: Biodiesel; TPA/Bentonite; Heterogeneous catalysis; Spent frying oil (SFO); Optimization (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:155:y:2020:i:c:p:181-188

DOI: 10.1016/j.renene.2020.03.123

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