Review on the preparation of bio-oil by microalgae hydrothermal liquefaction

doi:10.16085/j.issn.1000-6613.2017-1840

Abstract

Abstract: Microalgae has become the ideal renewable energy due to its low production costs,higher esters and glycerol content. Hydrothermal liquefaction has drawn a lot of attentions because of directly processing wet biomass and converting microalgae into high quality substitute for petroleum at appropriate temperature and pressure. This paper explores the hydrothermal degradation pathways of three components(protein,lipid and carbohydrate)of microalgae and main influencing factors including temperature,residence time,solvent,catalyst,and other reaction conditions of the microalgae hydrothermal treatment. To improve the economic efficiency of the microalgae bio-oil,further optimization of the reaction conditions and reduction of the cost of catalyst should be addressed. It is also suggested that hydrothermal liquefaction microalgae should concentrate the high value-added components of liquid products to realize the comprehensive utilization of high value-added chemicals,which has certain commercial value for the microalgae bio-oil.

Key words: microalgae, hydrothermal liquefaction, component, catalyst, bio-oil

摘要： 微藻生产成本低，酯类和甘油含量较高，是制备液体燃料的理想原料。水热液化由于可直接处理湿藻并在适当的温度和压力下将其转化为高品质的石油替代产品而引起了广泛关注。本文探讨了微藻三组分，即蛋白质、脂质和碳水化合物的水热降解途径，并总结了目前微藻水热液化过程的主要影响因素，包括温度、停留时间、溶剂以及催化剂等反应条件或参数对生物油的影响。指出为提高微藻生物油的经济性，应进一步优化反应条件，降低催化剂成本，加强微藻水热定向液化技术的研究，富集液体产品中高附加值成分，实现高附加值化学品的综合利用，尽快实现微藻生物油的应用。

关键词: 微藻, 水热液化, 组分, 催化剂, 生物油

CLC Number:

QU Lei, CUI Xiang, YANG Haiping, WANG Xianhua, ZHANG Wennan, SHAO Jing'ai, CHEN Hanping. Review on the preparation of bio-oil by microalgae hydrothermal liquefaction[J]. Chemical Industry and Engineering Progress, 2018, 37(08): 2962-2969.

曲磊, 崔翔, 杨海平, 王贤华, 张文楠, 邵敬爱, 陈汉平. 微藻水热液化制取生物油的研究进展[J]. 化工进展, 2018, 37(08): 2962-2969.

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