The process of liquefaction catalyzed by acid in the acetone/lithium bromide system is an efficient method of transforming lignocellulosic biomass into hydrocarbon fuel precursors. In this study, the authors have investigated the effect of reaction temperature, residence time, and dosage of the catalysts on the liquefaction yield and composition of bio-oil precursors produced from the bamboo powder. To understand the liquefaction mechanism, the reaction of liquefaction is compared with the reaction of transformation of sugars and bamboo cellulose under the same conditions. The results show that 140°C is the optimum temperature of the liquefaction reaction. When the temperature is 140°C and the reaction time is 4 h, the bamboo liquefaction yield can reach 98.77%. It was also found that the acid dosage has a significant effect on both the liquefaction yield and the composition of the hydrocarbon fuel precursors. With increase in the dosage of the acid, the yield increases. Most phenols produced in the reaction of liquefaction originate from lignin, while most ketones and hydrocarbon precursors are produced by the transformation of cellulose and hemicellulose.
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This research was supported by the National Key Research and Development Program of China (Project No. 2017YFD0600805) and the Fundamental Research Fund of the International Bamboo and Rattan Centre (Grant No. 1632019017).
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 5, pp. 69–74, September-October, 2021.
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Liu, Y., Ma, T. & Li, Z. Production of Hydrocarbon Fuel Precursors from Bamboo in the Acetone/Lithium Bromide System. Chem Technol Fuels Oils 57, 818–827 (2021). https://doi.org/10.1007/s10553-021-01312-0
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DOI: https://doi.org/10.1007/s10553-021-01312-0