Ch-Oxa辅助微藻中性油脂提取的研究  

A study of neutral oil extraction from microalgae pretreated by Ch-Oxa

作　　者：陈宏选 王忠铭[1,2,3] 黄大隆 袁振宏[1,2,3] 朱顺妮 Chen Hongxuan;Wang Zhongming;Huang Dalong;Yuan Zhenhong;Zhu Shunni(Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China;CAS Key Laboratory of Renewable Energy,Guangzhou 510640,China;Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development,Guangzhou 510640,China;University of Chinese Academy of Science,Beijing 100049,China)

机构地区：[1]中国科学院广州能源研究所,广东广州510640 [2]中国科学院可再生能源重点实验室,广东广州510640 [3]广东省新能源和可再生能源研究开发与应用重点实验室,广东广州510640 [4]中国科学院大学,北京100049

出　　处：《可再生能源》2019年第5期633-638,共6页Renewable Energy Resources

基　　金：国家重点研发项目(2016YFB0601004);广东省自然科学基金研究团队项目面上基金项目(2016A030312007)

摘　　要：文章对Ch-Oxa进行了制备和表征,并对Ch-Oxa和浓硫酸辅助微藻油脂提取进行了研究,推导出了低共熔溶剂辅助微藻中性油脂提取过程的动力学模型。研究结果表明:Ch-Oxa中存在氢键且具有较好的热稳定性;小球藻Chlorella sp.的中性油脂含量最大值为2.6%;浓硫酸和Ch-Oxa的加入量均与中性油脂含量呈正相关,0.2 g藻粉中加入0.08 g Ch-Oxa或12μL浓硫酸均能够使提取的中性油脂含量达到最大值;Ch-Oxa辅助微藻中性脂提取的过程符合一级动力学方程■。The preparation and characterization of Ch-Oxa were carried out. Then the extraction of microalgae oil pretreated by Ch-Oxa and concentrated sulfuric acid was studied. Finally, the kinetic model of microalgae neutral oil extraction process pretreated by deep eutectic solvent was derived.The results suggest hydrogen bond in Ch-Oxa has excellent thermodynamic stability. The highest neutral oil extraction from Chlorella sp. is 2.6%, when 0.08 g of Ch-Oxa or 12 μL of concentrated sulfuric acid is used to pretreat 0.2 g microalgae. The neutral oil extraction correlates with the concentration of concentrated sulfuric acid or Ch-Oxa. The process of microalgae neutral lipid 2.6 extraction pretreated by Ch-Oxa is in accordance with the first-order power ㏑2.6/2.6-c=0.1027t.

关 键 词：低共熔溶剂 油脂提取 中性油脂 油脂含量 动力学模型 

分 类 号：TK6[动力工程及工程热物理—生物能]