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Catalytic Pyrolysis of Soybean Oil with CaO/Bio-Char Based Catalyst to Produce High Quality Biofuel

Lujiang Xu, Geliang Xie, Xianjun Zhou, Yucheng Liu, Zhen Fang*

Biomass Group, College of Engineering, Nanjing Agricultural University, Nanjing, 210031, China

* Corresponding Author: Zhen Fang. Email: email

Journal of Renewable Materials 2022, 10(12), 3107-3118. https://doi.org/10.32604/jrm.2022.020691

Abstract

In this paper, CaO/bio-char was synthesized by directly co-pyrolysis of Ca(OH)2 and rice straw, and used as catalyst to catalytic pyrolysis of soybean oil to produce high quality biofuel. In this co-pyrolysis process, CaO particles has been successfully embedded on the bio-char surface. During the catalytic pyrolysis process, CaO/bio-char showed a good catalytic performance on the deoxygenation of soybean oil. Pyrolysis temperature affected the pyrolysis reactions and pyrolytic products distributions dramatically, higher pyrolysis temperature lead to seriously cracking reactions, lower bio-oil yield and higher gases yield, and lower pyrolysis temperature lead to higher bio-oil yield with higher oxygenated compounds content and lower hydrocarbons contents, the suitable pyrolysis temperature was around 650°C. Under the optimal conditions (650°C with WHSV at 6.4 h−1 and carrier gas flow rate at 100 ml/min), the selectivity (%) of hydrocarbons in the bio-oil was more than 90%. CaO/bio-char catalyst still shows good catalytic deoxygenation activity after 4 cycles. 1 g of CaO/bio-char catalyst can catalyze pyrolysis of 32 g of soybean oil to produce high-quality liquid fuel. Bio-char based catalyst has been proved to be a promising catalyst for catalytic conversion of triglyceride-based lipids into high quality liquid biofuel.

Graphic Abstract

Catalytic Pyrolysis of Soybean Oil with CaO/Bio-Char Based Catalyst to Produce High Quality Biofuel

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APA Style
Xu, L., Xie, G., Zhou, X., Liu, Y., Fang, Z. (2022). Catalytic pyrolysis of soybean oil with cao/bio-char based catalyst to produce high quality biofuel. Journal of Renewable Materials, 10(12), 3107-3118. https://doi.org/10.32604/jrm.2022.020691
Vancouver Style
Xu L, Xie G, Zhou X, Liu Y, Fang Z. Catalytic pyrolysis of soybean oil with cao/bio-char based catalyst to produce high quality biofuel. J Renew Mater. 2022;10(12):3107-3118 https://doi.org/10.32604/jrm.2022.020691
IEEE Style
L. Xu, G. Xie, X. Zhou, Y. Liu, and Z. Fang "Catalytic Pyrolysis of Soybean Oil with CaO/Bio-Char Based Catalyst to Produce High Quality Biofuel," J. Renew. Mater., vol. 10, no. 12, pp. 3107-3118. 2022. https://doi.org/10.32604/jrm.2022.020691



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