In the present investigation, the bio-oil extraction from Calophyllum inophyllum seeds using an ultrasonic-assisted heterogeneous solvent technique has been carried out in order to avoid diminishing the oil property and quality by high temperature. The application of different combinations of solvent extraction has been examined using Diethyl ether:Ethanol, Chloroform:Methanol, and Isopropanol: Methanol. The results reveals that the equal ratio of Diethyl ether:Ethanol in assistance with ultrasonic waves yields maximum oil extraction. The other optimized process conditions determined by central composite design was found to be the seed kernel to the solvent ratio of 1:15 (w:v); time 45 min; temperature 36 °C and ultrasonication power of 54 % yields maximum bio-oil of 82.8 % (w/w). The kinetic study denotes that the oil extraction process follows first-order kinetics. The presence of different functional groups, as well as volatile compounds in the extracted oil, were confirmed by fourier-transform infrared spectroscopy and gas chromatography-mass spectrometry. This confirms the presence of 22.11 % of free fatty acid content in the extracted bio-oil. The techno-economic analysis of 4.4 million kg of oil extract plant was investigated. The annual revenue estimated from the oil is 2,097,000 $/yr and the payback period is 5.43 years.

在本研究中，从茶树中提取生物油为了避免由于高温而降低油性和品质，已经进行了使用超声辅助多相溶剂技术的种子。已使用乙醚：乙醇，氯仿：甲醇和异丙醇：甲醇检查了溶剂萃取的不同组合的应用。结果表明，在超声波的帮助下，二乙醚：乙醇的等比例可产生最大的采油量。通过中央复合设计确定的其他优化工艺条件是种子仁与溶剂的比例为1:15（w：v）；时间45分钟；温度为36°C，超声功率为54％，产生的最大生物油为82.8％（w / w）。动力学研究表明，油的提取过程遵循一级动力学。存在不同的官能团 傅立叶变换红外光谱法和气相色谱-质谱法确定了所提取油中的挥发性化合物以及挥发性化合物。这证实了提取的生物油中存在22.11％的游离脂肪酸含量。对440万公斤榨油厂的技术经济分析进行了调查。石油的年收入估计为每年209.7万美元，投资回收期为5.43年。