Preparation of KI-Impregnated Razor Clam Shell as a Catalyst and its Application in Biodiesel Production from Jatropha curcas Oil

Abstract:

Nowadays, utilization of biomass is considered to have the potential to solve many environmental problems and provide a source of renewable and environmentally-friendly energy. Research on green and low cost catalysts is needed for economical production of biodiesel. The goal of this work was to test potassium iodide (KI)-impregnated calcined razor clam shell as a heterogeneous catalyst for transesterification of Jatropha curcas oil in a microwave reactor. The effects of different preparation conditions on biodiesel yield were investigated and the structure of the catalyst was characterized. The raw material and the resulting solid catalyst were characterized using X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM) and the Brunauer-Emmett-Teller (BET) method. The waste shell displays a typical layered architecture. The sample had the surface area 16.51 m²/g, pore diameter 22.18 nm and pore volume 0.14 cm³/g, and presented a uniform pore size. The highest fatty acid methyl ester (FAME) yield of 96.99% for potassium iodide-calcium oxide (KI-CaO) catalyst was obtained under the optimum condition (reaction time 5 min, microwave power 600 W, methanol/oil molar ratio 12:1, and catalyst dosage 3 wt%). It was showing potential applications of catalyst in biodiesel industry.

• Periodical: Key Engineering Materials (Volume 744)
• Pages: 506-510
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.744.506
• Online since: July 2017
• Authors: Achanai Buasri*, Pittayarat Chaibundit, Metawee Kuboonprasert, Arnan Silajan, Vorrada Loryuenyong
• Keywords: Biodiesel, Heterogeneous Catalyst, Razor Clam Shell, Transesterification, Waste Material

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