Recent Advances in Preparation of Biodiesel Using Ionic Liquids as Catalysts

Abstract

Biodiesel, which is stable, lubricating, and has the advantages of environmental protection and regeneration, is becoming a substitute for traditional fossil fuels such as petrol and diesel. Traditional catalysts, such as solid and liquid acid/alkali, have been used in the preparation of biodiesel until now. The biodiesel with high yield can be obtained by using traditional catalysts, whereas there are negative impacts on manufacturing equipment, environmental protection and economic benefits owing to the causticity. In the meantime, the ionic liquid, a kind of substance with wide liquid range, negligible vapor pressure, high catalytic activity, excellent chemical and thermal stability, potential recoverability, design possibilities, and ease of separation of the products from reactants, has been proposed as a new type of high-effect catalysts recently, and can be widely used in the field of biodiesel due to the advantages mentioned above. In this work, based on the application of ionic liquids in the synthesis of biodiesel, the different impacts on the esterification of fatty acid to biodiesel with different kinds of ionic liquids are elaborated and some suggestions about solving the existing issues of ionic liquids are put forward.

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	Articles by authors
	Qi Jinlong
	Gao Yujie
	Ding Hui
	Ye Wei
	Liu dan
	Gui Jianzhou

Keywords： energy； biodiesel； ionic liquids； reaction mechanism

Received 2016-01-13;

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Qi Jinlong, Gao Yujie, Ding Hui, Ye Wei, Liu dan, Gui Jianzhou.Recent Advances in Preparation of Biodiesel Using Ionic Liquids as Catalysts[J] Chemcial Industry and Engineering, 2017,V34(5): 25-34,42

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