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Transesterification of waste cooking oil using clinoptilolite/ industrial phosphoric waste as green and environmental catalysts

Babak Aghel, Ashkan Gouran and Farzad Nasirmanesh

Energy, 2022, vol. 244, issue PB

Abstract: This paper focuses on creating a new, environmentally sustainable catalyst made of industrial phosphoric waste and clinoptilolite for transesterification of waste cooking oil. A state-of-the-art CaO-based catalyst supported on the industrial phosphoric waste was obtained from a clinoptilolite zeolite-like material and alkali-activated CaO. So after ordinary purification, the clinoptilolite, and the weighed calcium oxide were stirred for 24 h at room temperature and then kept at 800 °C for 2 h for the formation of the catalyst. For assessment of the catalyst, the study used XRF, FT-IR, SEM, XRD, and BET. Under optimized conditions, the highest purity of biodiesel for waste cooking oil was 84.76%, the oil to methanol volume ratio was 1.47, the catalyst dosage was 8.08 wt%, the temperature was 54.72 °C, and the duration was 119 min. Results indicated that using waste cooking oil as raw materials and clinoptilolite/CaO as a catalyst for biodiesel development is a cost-effective and eco-friendly oil-recycling method and minimizes the production costs of biodiesel to improve biodiesel's competitiveness vis petroleum diesel.

Keywords: Biodiesel; Industrial phosphoric waste; Waste cooking oil; Green catalysts; Clinoptilolite (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (9)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:244:y:2022:i:pb:s036054422200041x

DOI: 10.1016/j.energy.2022.123138

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