Catalytic hydrothermal processing of microalgae: Decomposition and upgrading of lipids

被引：219

作者：

Biller, P. ^{[1
]}

Riley, R. ^{[1
]}

Ross, A. B. ^{[1
]}

机构：

[1] Univ Leeds, Sch Proc Environm & Mat Engn, Energy & Resources Res Inst, Leeds LS2 9JT, W Yorkshire, England

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 07期

基金：

英国工程与自然科学研究理事会;

关键词：

Hydrothermal liquefaction; Microalgae; Subcritical water; Lipids; HPLC; REVERSE-PHASE HPLC; VEGETABLE-OILS; FATTY-ACID; HYDROLYSIS; WATER; LIQUEFACTION; TRIACYLGLYCEROLS; ADULTERATION; BIOMASS;

D O I：

10.1016/j.biortech.2010.12.113

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Hydrothermal processing of high lipid feedstock such as microalgae is an alternative method of oil extraction which has obvious benefits for high moisture containing biomass. A range of microalgae and lipids extracted from terrestrial oil seed have been processed at 350 degrees C. at pressures of 150-200 bar in water. Hydrothermal liquefaction is shown to convert the triglycerides to fatty acids and alkanes in the presence of certain heterogeneous catalysts. This investigation has compared the composition of lipids and free fatty acids from solvent extraction to those from hydrothermal processing. The initial decomposition products include free fatty acids and glycerol, and the potential for de-oxygenation using heterogeneous catalysts has been investigated. The results indicate that the bio-crude yields from the liquefaction of microalgae were increased slightly with the use of heterogeneous catalysts but the higher heating value (HHV) and the level of de-oxygenation increased, by up to 10%. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：4841 / 4848

页数：8

共 34 条

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