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学科主题: 有机化学工程
题名: Biodiesel Production Using Lignocellulosic Feedstock
作者: Zhao ZB(赵宗保)
会议文集: Abstract Book
会议名称: International conference on clean energy science
会议日期: 2011-4-10
出版日期: 2011
会议地点: 大连
通讯作者: 赵宗保
出版者: 待补充
出版地: 待补充
合作性质: 分会口头报告
部门归属: 1816
主办者: 大连化物所
摘要: Biodiesel is an excellent renewable energy carrier currently being produced from vegetable oil. However, large-scale biodiesel production remains challenge because of limited supply of oil plant-based products. On the other hand, carbohydrate form lignocellulosic biomass is the most abundant renewable resources. In this context, it is pivotal to convert carbohydrates into products with similar properties to conventional fossil fuel. Oleaginous yeasts exhibit a capacity of assimilating carbohydrates to accumulate intracellular lipid composed of C16 and C18 series long-chain fatty acids. During the past few years, we have been working on biodiesel production using lignocellulosic feedstock, which included three steps, 1) Hydrolysis of lignocellulose to carbohydrate; 2) Lipid production with oleaginous yeasts; and 3) Transesterification of microbial lipid to biodiesel. We identified a hand of outstanding oleaginous yeasts [1], including R. toruloides, L. starkeyi, and C. curvatus. These yeasts use materials including glucose, xylose, raw glycerol and corn stalk hydrolysates. We optimized lipid production processes [2]. When using the yeast R. toruloides as the lipid producer in a 15-L bioreactor, we achieved lipid content, production titer and lipid productivity of over 65 wt%, 100 g/L and 0.8 g/l/h, respectively. We also showed that biodiesel can be produced using either the oleaginous microbial biomass or the microbial lipid as the feedstock [3]. Taken together, we demonstrated that biodiesel can be produced from microbial lipid, which in turn, can be obtained by fermentation of biomass-derived carbohydrates using oleaginous microorganisms.
英文摘要: Biodiesel is an excellent renewable energy carrier currently being produced from vegetable oil. However, large-scale biodiesel production remains challenge because of limited supply of oil plant-based products. On the other hand, carbohydrate form lignocellulosic biomass is the most abundant renewable resources. In this context, it is pivotal to convert carbohydrates into products with similar properties to conventional fossil fuel. Oleaginous yeasts exhibit a capacity of assimilating carbohydrates to accumulate intracellular lipid composed of C16 and C18 series long-chain fatty acids. During the past few years, we have been working on biodiesel production using lignocellulosic feedstock, which included three steps, 1) Hydrolysis of lignocellulose to carbohydrate; 2) Lipid production with oleaginous yeasts; and 3) Transesterification of microbial lipid to biodiesel. We identified a hand of outstanding oleaginous yeasts [1], including R. toruloides, L. starkeyi, and C. curvatus. These yeasts use materials including glucose, xylose, raw glycerol and corn stalk hydrolysates. We optimized lipid production processes [2]. When using the yeast R. toruloides as the lipid producer in a 15-L bioreactor, we achieved lipid content, production titer and lipid productivity of over 65 wt%, 100 g/L and 0.8 g/l/h, respectively. We also showed that biodiesel can be produced using either the oleaginous microbial biomass or the microbial lipid as the feedstock [3]. Taken together, we demonstrated that biodiesel can be produced from microbial lipid, which in turn, can be obtained by fermentation of biomass-derived carbohydrates using oleaginous microorganisms.
语种: 英语
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/116144
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Zhao ZB. Biodiesel Production Using Lignocellulosic Feedstock[C]. 见:International conference on clean energy science. 大连. 2011-4-10.
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