Novel biodiesel solid catalyst KF/Ca-Mg-Al-O as well as preparation method and application thereof

A solid catalyst, biodiesel technology, applied in the direction of physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, catalyst carrier, etc., can solve the problem that the product cannot be effectively separated, the reaction mixture is difficult to separate, and the quality is poor. and other problems, to achieve the effects of abundant raw materials, less loss of alkali dissolution and low cost
CN111468149AActive Publication Date: 2020-07-31HUAIYIN INSTITUTE OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAIYIN INSTITUTE OF TECHNOLOGY
Publication Date
2020-07-31

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Abstract

The invention discloses a novel biodiesel solid catalyst KF / Ca-Mg-Al-O as well as a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: (1) preparing a magnesium-aluminum composite metal oxide; (2) preparing a modified catalyst carrier; and (3) preparing the catalyst. The KF / Ca-Mg-Al-O solid base catalyst is prepared through a coprecipitation method and an isopyknic impregnation method. Compared with a traditional homogeneous catalyst, the catalyst prepared through the method has the advantages of being easy to separate, high in product quality and the like in the using process; the catalyst prepared by the invention has the advantages of small alkali dissolution amount, good reusability, acid resistance, water resistance and saponification resistance in the use process. The catalyst disclosed by the invention is good in catalytic activity and less in alkali dissolution loss, and the catalyst is simple in preparation process, rich in raw materials and low in price, so that the catalyst is a solid alkali catalyst suitable for popularization and application and can be effectively applied to biodiesel preparation.
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Description

technical field

[0001] The invention relates to the technical field of solid catalyst preparation and biodiesel synthesis, in particular to a biodiesel catalyst, specifically a biodiesel catalyst KF / Ca-Mg-Al-O and a preparation method and application thereof. Background technique

[0002] At present, the available petrochemical resources in the world are decreasing day by day. With the development of economy and society, the human demand for petroleum energy is increasing day by day, and the supply of petrochemical resources is gradually showing a shortage. Biodiesel controls the emission of toxic pollutants and carcinogens. Biodiesel refers to a renewable diesel fuel that can replace petrochemical diesel fuel made from oil crops, animal fats, and catering waste oil through transesterification or other methods. It has the advantages of renewability and cleanliness, and its main component is fatty acid Methyl esters (FAME). The synthesis of low-cost biodiesel is a major chal...

Claims

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