酸性离子液体催化水热液化法从球拟红酵母生产生物柴油
Biodiesel production from Rhodosporidium toruloides by acidic ionic liquids catalyzed hydrothermal liquefaction.
作者信息
Chen Yuwei, Long Feng, Huang Qitian, Wang Kui, Jiang Jianchun, Chen Jie, Xu Junming, Nie Xiaoan
机构信息
Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China; Yancheng Institute of Technology, Yancheng 224051, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, China.
Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China.
出版信息
Bioresour Technol. 2022 Nov;364:128038. doi: 10.1016/j.biortech.2022.128038. Epub 2022 Sep 26.
Hydrothermal liquefaction (HTL) has been proved to be an efficient method to disrupt cell walls and extract lipids from oleaginous yeast. However, many steps are needed for converting bio-oil into fatty acid methyl esters after HTL. Herein, acidic ionic liquid 1-butyl-3-methylimidazolium hydrogen sulfate ([Bmim][HSO]) was introduced as the catalyst in HTL to convert oleaginous yeast Rhodosporidium toruloides to biodiesel in one step. [Bmim][HSO] has dual effects on cell wall disruption and transesterification in reactions. As a result, the biodiesel yield achieved as high as 15.1 ± 3.2 % in optimal condition. The biodiesel was composed of long chain fatty acid methyl esters, and the higher heating value was 40.62 ± 0.05 MJ·kg. After the catalyst recycled 4 times, the catalytic efficiency still kept at 62.8 ± 2.1 %. The results indicated catalytic HTL was a direct and efficient method for biodiesel production from Rhodosporidium toruloides.
水热液化（HTL）已被证明是一种破坏细胞壁并从产油酵母中提取脂质的有效方法。然而，水热液化后将生物油转化为脂肪酸甲酯需要许多步骤。在此，酸性离子液体1-丁基-3-甲基咪唑硫酸氢盐（[Bmim][HSO]）被引入作为水热液化中的催化剂，以一步将产油酵母红酵母转化为生物柴油。[Bmim][HSO]在反应中对细胞壁破坏和酯交换具有双重作用。结果，在最佳条件下生物柴油产率高达15.1±3.2%。生物柴油由长链脂肪酸甲酯组成，高热值为40.62±0.05 MJ·kg。催化剂循环使用4次后，催化效率仍保持在62.8±2.1%。结果表明，催化水热液化是一种从红酵母生产生物柴油的直接有效方法。
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