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

Inactive Publication Date: 2013-07-17
INNER MONGOLIA AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, some homogeneous catalysts are mainly used to synthesize biodiesel through transesterification reaction using Xanthos sorbifolium oil, but there are also problems such as difficult separation of catalysts and biodiesel, complex post-treatment, non-recyclable use, strict requirements on raw materials, easy corrosion of equipment, and easy Cause three wastes, pollute the environment and other problems

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: a kind of preparation method of the catalyzer of Radix radix radix radix shell activated carbon load KOH, it comprises the following steps successively, (1) Radix radix radix radiata active carbon pretreatment; (2) prepare the radix radix radix radix shell activated carbon load KOH catalyst; 3) Catalyst loaded with KOH on activated carbon of X. sorbifolia fruit shell was calcined at 300°C; (4) Finished product packaging; Among them,

[0032] (1) Pretreatment of X. radix radix radix activated carbon: Put the X. xanthus X. X. husk activated carbon in a drying oven and dry at 100°C for 2 hours to remove impurities and moisture on the surface of X. X. X. X. X. X. husk activated carbon;

[0033] (2) Preparation of X. radix radix radix shell activated carbon loaded KOH catalyst: take 500 grams of X. radix radix radiata shell activated carbon after pretreatment, add 55ml of 10% KOH solution, stir continuously for 1-2h, make it mix evenly, then, put Remove moistur...

Embodiment 2

[0042] Embodiment 2: a kind of preparation method of the catalyzer of Radix radix radix radix shell activated carbon load KOH, it comprises the following steps successively, (1) Radix radix radix radiata active carbon pretreatment; (2) prepare the radix radix radix radix shell activated carbon load KOH catalyst; 3) Catalyst loaded with KOH on activated carbon of X. radix radix radiata shell was calcined at 600°C; (4) Finished product packaging; Among them,

[0043] (1) Pretreatment of X. radix radix radix activated carbon: put the X. xanthii activated carbon in a drying oven at 200°C for 4 hours to remove impurities and moisture on the surface of the X. xanthus activated carbon;

[0044] (2) Preparation of X. radix radix radix shell activated carbon loaded KOH catalyst: Weigh 500 g of the pretreated X. radix radix radiata active carbon, add 125 ml of 40% KOH solution, stir continuously for 1-2 h to make it evenly mixed, and then put it into a dry Moisture was removed in the bo...

Embodiment 3

[0053] Embodiment 3: a kind of preparation method of the catalyzer of Radix radix radix radix shell active carbon load KOH, it comprises the following steps successively, (1) Radix radix radix radiata active carbon pretreatment; (2) prepares the radix radix radix shell activated carbon load KOH catalyst; 3) Catalyst loaded with KOH on activated carbon of X. sorbifolium fruit shell is calcined at 500°C; (4) Finished product packaging; Among them,

[0054] (1) Pretreatment of X. radix radix radix activated carbon: put the X. radix X. radicis activated carbon in a drying oven and dry at 150°C for 3 hours to remove impurities and moisture on the surface of X. radix X. radicis activated carbon;

[0055] (2) Preparation of X. radix radix radix shell activated carbon loaded KOH catalyst: Take 500 g of pretreated X. radix X. radicis activated carbon, add 214 ml of 30% KOH solution, stir continuously for 1-2 h to make it evenly mixed, and then put it in a dry Moisture was removed in th...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/04B01J35/10C11C3/10C10L1/02
Inventor 王喜明郝一男丁立军薛振华
Owner INNER MONGOLIA AGRICULTURAL UNIVERSITY
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