Synthesis and characterization of coal fly ash supported zinc oxide catalyst for biodiesel production using used cooking oil as feed

Adeyinka S. Yusuff, Aman K. Bhonsle, Jayati Trivedi, Dinesh P. Bangwal, Lok P. Singh and Neeraj Atray

Renewable Energy, 2021, vol. 170, issue C, 302-314

Abstract: Coal fly ash-zinc oxide composite (CFA/ZnO) was developed, characterized and applied as a catalyst in the transesterification of used cooking oil (UCO) with methanol to obtain biodiesel. The prepared supported catalyst was characterized by TGA/DTA, gas sorption, TEM-EDX, FTIR and XRD techniques. Taguchi design approach was used for the optimization of biodiesel synthesis from UCO. Amongst the studied process variables, reaction temperature, reaction time and methanol/oil molar ratio most significantly affected the biodiesel yield and fatty acid methyl ester (FAME) content. At the optimum temperature of 140 °C, the time of 3 h, methanol/oil molar ratio of 12:1 and catalyst loading of 0.5 wt%, the biodiesel yield was 83.17%. The FAME content of the biodiesel produced was found to be 98.14 wt%. Moreover, the catalyst regeneration and reusability were studied to verify its stability, and it was established that the CFA-ZnO could be reused for up to four successive cycles with negligible loss in performance.

Keywords: Biodiesel; Catalyst; Used cooking oil; Fly ash; Transesterification; Optimization (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:170:y:2021:i:c:p:302-314

DOI: 10.1016/j.renene.2021.01.101

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