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.

在丙酮/溴化锂系统中由酸催化的液化过程是将木质纤维素生物质转化为碳氢燃料前体的有效方法。在这项研究中，作者研究了反应温度、停留时间和催化剂用量对由竹粉生产的生物油前体的液化产率和组成的影响。为了理解液化机理，将液化反应与相同条件下糖和竹纤维素的转化反应进行了比较。结果表明，140℃是液化反应的最佳温度。当温度为140℃，反应时间为4h时，竹子液化产率可达98.77%。还发现酸用量对液化产率和烃燃料前体的组成都有显着影响。随着酸用量的增加，产率增加。液化反应中产生的酚类大多来源于木质素，而酮类和烃类前体大部分是由纤维素和半纤维素转化产生的。