KOH-supported Xanthoceras sorbifolia husk active carbon catalyst and preparation method and application thereof

A fruit shell and activated carbon technology, which is applied in the field of catalyst and preparation of KOH supported by Wenguan fruit shell activated carbon, can solve the problems of difficult separation of catalyst and biodiesel, strict requirements on raw materials, and inability to recycle, etc., and achieves widening raw material sources and easy separation. , the effect of easy regeneration
CN102218308BInactive Publication Date: 2013-07-17INNER MONGOLIA AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INNER MONGOLIA AGRICULTURAL UNIVERSITY
Publication Date
2013-07-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a KOH-supported Xanthoceras sorbifolia husk active carbon catalyst and a preparation method and application thereof. The preparation method comprises the following steps of: (1) pretreating Xanthoceras sorbifolia husk active carbon; (2) preparing the KOH-supported Xanthoceras sorbifolia husk active carbon catalyst; (3) calcining at high temperature; and (4) packaging finished products. A method for preparing biodiesel by using the catalyst comprises the following steps of: (1) performing ester exchange reaction; (2) recycling glycerol; and (3) preparing a finished product of biodiesel. The invention has the advantages that: the cost of the catalyst is reduced, the catalytic efficiency is improved, the catalyst is easily separated from the product, is easy to regenerate and cannot seriously corrode reaction equipment, reaction conditions are mild, the automatic and continuous operation is easy to realize and the like.
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Description

Technical field:

[0001] The invention relates to a catalyst, a preparation method thereof and an application thereof, in particular to a catalyst, a preparation method and an application of KOH loaded on active carbon of radix sorbifolia fruit shell. Background technique:

[0002] In the biodiesel preparation process, the catalysts of the transesterification process are mostly homogeneous catalysts, and NaOH, KOH, sodium metal alkoxides and concentrated sulfuric acid are generally used. Using NaOH as a catalyst is mainly cheap and easy to get, but it has serious disadvantages, such as complicated post-processing, difficult separation, easy to corrode equipment, easy to cause three wastes, and pollute the environment. In addition, when a homogeneous base is used as a catalyst, the content of moisture and free fatty acid in the raw material must be strictly limited. Usually, the water content is required to be less than 0.06%, and the acid value AV is less than 1mgKOH / g. In o...

Claims

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