The development of biofuels from oleaginous biomass has attracted a great deal of interest not only because of the environment pollution but also because of the rapid depletion of the fossil fuel reserves. Among the biomass conversion processes, the solvolysis reaction has shown to be an interesting solution which allows the direct conversion of raw materials into biofuel. In the present work, a solvolysis process is applied on Pistacia lentiscus (PL) seeds using ethanol as solvent for bio-oil production. Several temperatures varying from 270 to 330 °C, reaction time in the range 15–45 min and ethanol:PL seed ratio values from 0.5–1.5 ml/g were considered. The response surface methodology (RSM) combined with Box-Behnken design (BBD) is used for modeling and optimizing both the process yield and bio-oil viscosity. The results show that the optimum conditions are obtained for a reaction temperature of 304.91 °C, a reaction time of 35.24 min, and an ethanol:PL seed ratio of 1.16. Under these conditions, the predicted PL bio-oil yield is around 63.5% with a bio-oil viscosity of 5.88 mm²/s. The PL bio-oil physicochemical properties showed a good agreement with those of diesel fuel and in conformity with the international requirements except for the viscosity, whose value was found to be slightly higher than the standard. The engine tests show that the fuel specific consumption increases around 9% with a mixture containing bio-oil up to 30%. On the other hand, slight increases in CO (13%), HC (25%) and particulate (30%) emissions were recorded.

由油质生物质开发生物燃料引起了广泛的关注，不仅是因为环境污染，而且还因为化石燃料储备的迅速枯竭。在生物质转化过程中，溶剂分解反应已被证明是一种有趣的解决方案，它可以将原材料直接转化为生物燃料。在目前的工作中，对黄连木应用溶剂分解工艺（PL）使用乙醇作为生物油脂生产溶剂的种子。几个温度从270到330°C不等，反应时间在15-45分钟范围内，乙醇：PL种子的比率在0.5-1.5 ml / g之间。响应面方法学（RSM）与Box-Behnken设计（BBD）相结合，可用于对过程产量和生物油粘度进行建模和优化。结果表明，获得了最佳条件，反应温度为304.91°C，反应时间为35.24 min，乙醇：PL种子比为1.16。在这些条件下，PL的预测生物油产率约为63.5％，生物油粘度为5.88 mm ²/ s。PL生物油的理化特性与柴油具有良好的一致性，除粘度外其国际标准均符合要求，粘度值略高于标准。发动机测试表明，含生物油的混合物中高达30％的燃料比消耗增加了约9％。另一方面，记录到CO（13％），HC（25％）和微粒（30％）排放量略有增加。