藻类异养转化制备生物油燃料技术  

Bio-oil fuel production from microalgae after heterotrophic growth

作　　者：缪晓玲[1] 吴庆余[1] 

机构地区：[1]清华大学生物科学与技术系

出　　处：《可再生能源》2004年第4期41-44,共4页Renewable Energy Resources

基　　金：国家"863"项目(2001AA514070);国家自然科学基金重点项目(40332022)

摘　　要：通过异养转化细胞工程技术获得了高脂肪含量的异养小球藻细胞,其脂类化合物含量高达细胞干重的55%,是自养藻细胞(14%)的4倍。利用这些高脂肪含量的异养藻快速热解获得高产量的生物油,产油率为57.9%(%藻干重),是自养藻细胞产油率(16.6%)的3.4倍。异养藻细胞的生物油热值高达41MJ/kg,分别是木材生物油和自养藻生物油的2倍和1.4倍。与木材或农作物秸秆的生物油和自养藻生物油相比,异养藻细胞的生物油具高热值(41MJ/kg)、低密度(0.92kg/l)、低粘度(0.02Pa·s)的特点。High lipid chlorophyll-eradicating cells of heterotrophic C. protothecoides were obtained through heterotrophic growth. The lipid content in heterotrophic cells(55%)was about 4 times that in autotrophic cells(14%). The yield of bio-oil(57.9%) produced from these high lipid content of heterotrophic Chlorella protothecoides cells was 3.4 times higher than from autotrophic cells(16.6%)by fast pyrolysis. The bio-oil was characterized by a much lower oxygen content, with a higher heating value(41 MJ/kg), a lower density(0.92 kg/l), and lower viscosity(0.02 Pa·s)compared to those of bio-oil from autotrophic cells and wood. (3.

关 键 词：小球藻 异养转化 脂类 快速热解 生物油 

分 类 号：Q949.217[生物学—植物学] TQ517.4[化学工程]