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Ordered mesoporous composite catalyst and preparation method and application thereof

A composite catalyst and catalyst technology, applied in the direction of catalyst activation/preparation, preparation of organic compounds, chemical instruments and methods, etc., can solve the problems of low selectivity of low-carbon alcohols, limited catalyst activity, high water content of products, etc. The effect of mass resistance

Inactive Publication Date: 2017-11-24
ENERGY RES INST CO LTD HENAN ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (3) Modified methanol synthesis catalyst. This type of catalyst is obtained by modifying methanol synthesis catalyst. Its catalytic activity is high. The main products are methanol and isobutanol, but the reaction conditions require high temperature (350-450°C) and high pressure (12-16MPa), and the water content in the product is high;
Its reserves are abundant and the price is moderate, but the catalyst activity of CuCo system alone is limited, and the selectivity of low-carbon alcohols is low, so it can be used as the main active component of low-carbon alcohol synthesis catalysts, and can be greatly improved by modifying CuCo-based catalysts. Its catalytic activity and selectivity of lower alcohols

Method used

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  • Ordered mesoporous composite catalyst and preparation method and application thereof
  • Ordered mesoporous composite catalyst and preparation method and application thereof
  • Ordered mesoporous composite catalyst and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An ordered mesoporous composite catalyst, the preparation steps are as follows:

[0038] ①At 40°C, dissolve 1.0g triblock copolymer F127 in 8.0g ethanol, add 0.9g dilute hydrochloric acid (0.2M), stir, add 3.2g zirconium oxychloride and 0.8g ethanol solution of phenolic resin , continue stirring. The solution was spread on a film and left to evaporate the solvent, and then polymerized and crosslinked at 100°C for 24 hours. Afterwards, the material was ground into powder and calcined at 500 °C for 5 h under nitrogen atmosphere to obtain the ordered mesoporous carrier C-ZrO 2 ;

[0039] 2. Get the carrier 44.3g that step 1. obtains and impregnate in be dissolved with 9.5g copper nitrate (Cu(NO 3 ) 2 ·3H 2 O), 12.4g cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O), 0.3g ruthenium chloride (RuCl 2 ·3H 2 O) and 1.3g potassium acetate (CH 3 COOK) mixed solution 30ml, soaked at room temperature for 14h, then dried in air at 110°C for 12h, and then calcined at 450°C for 5h to pr...

Embodiment 2

[0042] An ordered mesoporous composite catalyst, the preparation steps are as follows:

[0043] ① Dissolve 1.2g triblock copolymer P123 in 10.0g ethanol at 42°C, add 1.1g0.2mol / l dilute hydrochloric acid, stir, add 3.4g zirconium oxychloride and 0.9g ethanol solution of phenolic resin , continue stirring. Spread the solution on a film and let it stand to evaporate the solvent, then polymerize and cross-link at 105°C for 28h. Grind the material into powder, and calcined at 550 °C for 4 h under nitrogen atmosphere to obtain the ordered mesoporous carrier C-ZrO 2 ;

[0044] 2. Get the carrier 43.8g that step 1. obtains and impregnate in be dissolved with 9.5g copper nitrate (Cu(NO 3 ) 2 ·3H 2 O), 15.3g iron nitrate (Fe(NO 3 ) 3 9H 2 O), 0.5g ruthenium chloride (RuCl 2 ·3H 2 O) and 2.6g potassium acetate (CH 3 COOK) in 40ml of mixed solution, immersed at room temperature for 16h, dried in air at 110°C for 14h, and then calcined at 480°C for 5h to obtain catalyst B;

[...

Embodiment 3

[0047] An ordered mesoporous composite catalyst, the preparation steps are as follows:

[0048] ① Dissolve 1.0g triblock copolymer F127 in 10.0g ethanol at 40°C, add 0.9g0.2mol / l dilute hydrochloric acid, stir, add 2.8g zirconium oxychloride and 0.8g ethanol solution of phenolic resin , continue stirring. Spread the solution on a film and let it stand to evaporate the solvent, then polymerize and cross-link at 105°C for 24h. Grind the material into powder, and calcined at 600 °C for 3 h under nitrogen atmosphere to obtain the ordered mesoporous carrier C-ZrO 2 ;

[0049] 2. Get the carrier 49g that step 1. obtains and impregnate in be dissolved with 9.5g copper nitrate (Cu(NO 3 ) 2 ·3H 2 O), 12.4g nickel nitrate (Ni(NO 3 ) 2 ·6H 2 O), 0.7g palladium chloride (PdCl 2 ) and 1.3g potassium acetate (CH 3 COOK) in 30ml of mixed solution, immersed at room temperature for 14h, dried in air at 110°C for 12h, and then calcined at 450°C for 5h to obtain catalyst C;

[0050] T...

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Abstract

The invention belongs to the technical field of biomass energy utilization, and particularly relates to an ordered mesoporous composite catalyst for preparing low-carbon mixed alcohol by using a biomass syngas and a preparation method and application of the ordered mesoporous composite catalyst. The catalyst is prepared by adopting ordered mesoporous C-ZrO2 as a carrier and loading active components and an assistant on the carrier, wherein the active components are Cu and M; M is selected from at least one of Ni, Co and Fe; and the assistant is precious metal N and alkali metal or alkaline-earth metal A. By adopting the catalyst, the problems that a traditional catalyst for preparing the low-carbon mixed alcohol by using the biomass syngas is low in Co hydrogenation conversion rate, and the low-carbon mixed alcohol, especially ethanol, in a product is low in selectivity can be solved.

Description

technical field [0001] The invention belongs to the technical field of biomass energy utilization, and in particular relates to an ordered mesoporous composite catalyst for preparing low-carbon alcohol from biomass synthesis gas, a preparation method and application thereof. Background technique [0002] With the depletion of fossil energy and the aggravation of environmental pollution, the development of renewable energy based on biomass resources has important practical value. Syngas from biomass gasification (H 2 +CO) as a raw material to prepare low-carbon alcohols (C1-C5 normal and isomeric alcohols) through catalytic conversion is a key process for the production of basic chemical raw materials and clean fuel additives from biomass resources. Low-carbon alcohol is one of the important basic raw materials in the field of chemical energy. It is also a high-quality power fuel. It is also a high-octane, low-pollution vehicle fuel additive. Mixed into alcohol-oil hybrid f...

Claims

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Application Information

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IPC IPC(8): B01J23/89B01J23/825B01J35/10B01J37/02B01J37/08C07C29/156C07C29/157C07C29/158C07C31/04C07C31/08
CPCC07C29/156C07C29/157C07C29/158B01J23/825B01J23/8946B01J37/0201B01J37/088B01J35/615B01J35/647C07C31/04C07C31/08Y02P20/52Y02E50/10
Inventor 雷廷宙陈高峰王志伟林鹿何晓峰关倩李学琴朱金陵杨延涛徐海燕董莉莉辛晓菲杨淼李自杰石杰赵宝珠韩刚
Owner ENERGY RES INST CO LTD HENAN ACADEMY OF SCI