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A Zanthoxylum bungeanum seed oil-based carbon solid acid catalyst for the production of biodiesel

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Abstract

Zanthoxylum bungeanum seed oil (ZSO) cannot be widely consumed because it contains high free fatty acids with an acid value of 73.75 mg KOH per g. Herein, a solid acid catalyst was prepared from ZSO via a carbonization–sulfonation method using concentrated sulfuric acid. The prepared catalyst was characterized by FT-IR, SEM, XPS, XRD, N2 physisorption, and Boehm titration methods. The prepared solid acid was employed as a catalyst to investigate its performance during the simultaneous esterification and transesterification of ZSO in a one-pot process to produce biodiesel. The optimum reaction parameters for obtaining biodiesel in >95% yield using the abovementioned reaction were as follows: 30 : 1 methanol-to-oil molar ratio, a catalyst loading of 8.0 wt%, a reaction temperature of 140 °C, and reaction time of 4.0 h.

Graphical abstract: A Zanthoxylum bungeanum seed oil-based carbon solid acid catalyst for the production of biodiesel

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Publication details

The article was received on 17 Apr 2017, accepted on 20 Jul 2017 and first published on 20 Jul 2017


Article type: Paper
DOI: 10.1039/C7NJ01271C
Citation: New J. Chem., 2017, Advance Article
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    A Zanthoxylum bungeanum seed oil-based carbon solid acid catalyst for the production of biodiesel

    W. Wang, P. Lu, H. Tang, Y. Ma and X. Yang, New J. Chem., 2017, Advance Article , DOI: 10.1039/C7NJ01271C

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