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Biomass sugar alcohol hydrogenolysis catalyst, and preparation method and application thereof

A biomass and catalyst technology, which is applied in the field of biomass sugar alcohol hydrogenolysis catalyst and its preparation, can solve the problems that cannot meet the requirements of industrial production and commercial operation, the limitation of catalytic synthesis in small-scale research, and the low conversion rate of alcohol products, etc. problems, to achieve the effects of high energy utilization efficiency, easy industrial production, and high added value of products

Active Publication Date: 2019-10-15
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these synthetic routes also face many great challenges
The method of biological fermentation needs to consume a large amount of biomass raw materials, such as corn and sugarcane, and it is difficult to produce high-yield alcohols with five carbon atoms (C 5+ Alcohol), the method produces C 5+ The conversion rate of alcohol products is low, the concentration is low, and the production cost is high, which cannot meet the requirements of industrial production and commercial operation
[0003] Catalytic conversion of synthesis gas into hydrocarbons, methanol and other products has been widely used in large-scale industrial production, but currently there are very few catalysts for the synthesis of alcohols with two carbon atoms or more. Catalyzed synthesis of alcohols above 1 and above has been severely limited in small-scale studies

Method used

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  • Biomass sugar alcohol hydrogenolysis catalyst, and preparation method and application thereof
  • Biomass sugar alcohol hydrogenolysis catalyst, and preparation method and application thereof
  • Biomass sugar alcohol hydrogenolysis catalyst, and preparation method and application thereof

Examples

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preparation example Construction

[0058] The preparation method of CMK-3 mesoporous carbon carrier comprises the following steps:

[0059] Step 1. Use 1 g of SBA-15 as a hard template and the first impregnation solution for the first impregnation, and dry (drying includes: first drying at 60-100°C for 6h, then drying at 120-200°C for 6h) to obtain the first An impregnation, the first impregnation solution comprising 1.25g of sucrose, 5g of water and 0.14g of concentrated sulfuric acid;

[0060] Step 2, impregnating the first impregnation with the second impregnation solution for the second time, drying (drying includes: first drying at 60-100°C for 6h, then drying at 120-200°C for 6h) to obtain the second impregnation, The second impregnating solution comprises the concentrated sulfuric acid of the sucrose of 0.8g, the water of 5g and 0.09g;

[0061] Step 3, sequentially roasting the second impregnation (calcination at 550-850° C. in a nitrogen atmosphere) and etching with a hydrofluoric acid solution with an...

Embodiment 1

[0064] The embodiment of the present application provides 1%Ru-1%Mo(acac) / CMK-3 catalyst, and its preparation method is as follows:

[0065] Weigh 0.0414g of ruthenium acetylacetonate and 0.0344g of molybdenum acetylacetonate respectively and add them to excess isopropanol to dissolve, stir at 30°C until completely dissolved (3-5h), and mix the completely dissolved ruthenium acetylacetonate solution, acetylacetonate Add molybdenum acetonide solution into a beaker of 1.0005g of CMK-3 carrier that has been calculated and weighed, after ultrasonication (1-3h), room temperature (12-24h), drying (80-150°C, dry to obtain a solid), N 2 Atmosphere calcining (300-600°C) to prepare 1%Ru-1%Mo(acac) / CMK-3 catalyst.

Embodiment 2

[0067] The embodiment of the present application provides 2%Ru-2%Mo(acac) / CMK-3 catalyst, and its preparation method is as follows:

[0068] Weigh 0.0808g of ruthenium acetylacetonate and 0.0692g of molybdenum acetylacetonate respectively and add them to excess isopropanol to dissolve, stir at 30°C until completely dissolved (3-5h), and completely dissolve the ruthenium acetylacetonate solution, acetylacetonate The molybdenum acetonate solution was added into a beaker of 1.0010 g of CMK-3 carrier calculated and weighed, and the other conditions were the same as in Example 1 to prepare a 2%Ru-2%Mo(acac) / CMK-3 catalyst.

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Abstract

The invention belongs to the technical field of catalysts, and particularly relates to a biomass sugar alcohol hydrogenolysis catalyst and a preparation method and application thereof. The biomass sugar alcohol hydrogenolysis catalyst comprises a CMK-3 mesoporous carbon carrier, and Ru and Mo which are supported on the CMK-3 mesoporous carbon carrier, wherein the loading capacity of Ru is 1.0-5.0wt%, and the loading capacity of Mo is 1.0-10 wt%. The preparation method comprises the following steps: mixing a CMK-3 mesoporous carbon carrier, a ruthenium acetylacetonate solution and a molybdenumacetylacetonate solution, and then sequentially carrying out drying and roasting treatment to obtain the biomass sugar alcohol hydrogenolysis catalyst. The invention also discloses an application ofthe biomass sugar alcohol hydrogenolysis catalyst in catalyzing a biomass sugar alcohol aqueous solution to prepare alcohol compounds. The catalyst fills the vacancy of lack of catalysts for catalyticsynthesis of alcohols with two or more carbon atoms in the prior art.

Description

technical field [0001] The invention belongs to the technical field of catalysts, in particular to a biomass sugar alcohol hydrogenolysis catalyst and its preparation method and application. Background technique [0002] Nowadays, alcohol compounds with two or more carbon atoms (such as: C 2+ Alcohol, C 3+ Alcohol, C 4+ Alcohol, C 5+ Alcohol and C 6+ Alcohol) is more desirable than methanol for products such as ethanol fuels, fuel additives and fine chemicals. The technical routes for the production of alcohols with two or more carbon atoms mainly include catalytic conversion of synthesis gas and biological fermentation. However, these synthetic routes also face many great challenges. The method of biological fermentation needs to consume a large amount of biomass raw materials, such as corn and sugarcane, and it is difficult to produce high-yield alcohols with five carbon atoms (C 5+ Alcohol), the method produces C 5+ The alcohol product has low conversion rate, low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/652B01J37/03B01J37/18C10L1/02
CPCB01J23/6525B01J37/035B01J37/18C10L1/02C10L2290/141B01J35/393B01J35/23B01J35/399
Inventor 王铁军余雅玲仇松柏张浅秦延林马宇飞
Owner GUANGDONG UNIV OF TECH