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Catalyst for catalysis treatment of biomass with microwave and ultraviolet light as well as preparation method and application thereof

A technology of catalytic treatment and ultraviolet light, which is applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of energy shortage and environmental pollution, and reduce the production cost. Effects of difficulty, dependency resolution, and ease of operation

Inactive Publication Date: 2011-04-06
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Reducing sugars, organic acids and other substances are produced after biomass pretreatment through catalysts, which are used as carbon sources to supply microbial production systems, thereby effectively solving the problems of environmental pollution and energy shortages

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The preparation steps of the catalyst of the present embodiment are:

[0022] (1) The active ingredients weighed according to the mass percentage ratio include transition metal oxides M x o y 0.1Kg (10%), CeO 2 0.15Kg (15%), ZrO2 0.2Kg (20%), γ-Al 2 o 3 0.2Kg (20%), TiO 2 0.2Kg (20%), clay SiO 2 0.15Kg (15%), of which transition metal oxide M x o y is CuO.

[0023] (2) After mixing the powder weighed in the process (1), mix it with water and add it to the ball mill in a wet ball mill. min, ball milled for 10 hours to make it evenly mixed;

[0024] (3) Take out and mix the powder and dry it at 60°C, add binder methyl cellulose accounting for 5% of the powder mass percentage ratio, grind it through a 40-mesh sieve to obtain a powder, and press it on a tablet machine Tablet molding, tablet molding pressure 10MPa;

[0025] (4) Dry the shaped tablet at 60°C for 10 hours; place the dried shaped tablet in a muffle furnace, and calcinate and activate it at 450°C for ...

Embodiment 2

[0027] The preparation steps of the catalyst of the present embodiment are:

[0028] (1) The active ingredients weighed according to the mass percentage ratio include transition metal oxides M x o y 0.3Kg (30%), CeO 2 0.02Kg (2%), ZrO 2 0.01Kg (1%), γ-Al 2 o 3 0.2Kg (20%), TiO 2 0.4Kg (40%), clay SiO 2 0.07Kg (7%), of which transition metal oxide M x o y for Fe 2 o 3 .

[0029] (2) After mixing the powder weighed in the process (1), mix it with water and add it to the ball mill in a wet ball mill. min, ball milled for 5 hours to make it evenly mixed;

[0030] (3) Take out and mix the powder and dry it at 110°C, add a starch binder accounting for 10% of the powder mass, grind it through a 40-mesh sieve to obtain a powder, and press it on a tablet machine to form a tablet. Tablet molding pressure 25MPa;

[0031] (4) Dry the shaped tablet at 110°C for 6 hours; place the dried shaped tablet in a muffle furnace, and calcinate and activate it at 800°C for 3 hours; afte...

Embodiment 3

[0033] The preparation steps of the catalyst of the present embodiment are:

[0034] (1) The active ingredients weighed according to the mass percentage ratio include transition metal oxides M x o y 0.1Kg (10%), CeO 2 0.03Kg (3%), ZrO 2 0.02Kg (2%), γ-Al 2 o 3 0.6Kg (60%), TiO 2 0.2Kg (20%), clay SiO 2 0.05Kg (5%), of which transition metal oxide M x o y for Fe 3 o 4 .

[0035] (2) Mix the powder weighed in the process (1), then mix it with water and add it to the wet ball milling tank for ball milling. The mass ratio of powder and water is 1:3 and mix it into the wet ball milling tank and control the speed of 400r / min, ball milled for 4 hours to make it evenly mixed;

[0036] (3) Take out and mix the powder and dry it at 150°C, add polyvinyl acetate sol accounting for 20% of the mass of the powder, grind it through a 40-mesh sieve to obtain a powder, and press it on a tablet machine to form a tablet. Tablet molding pressure 40MPa;

[0037] (4) Dry the shaped ta...

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Abstract

The invention provides a catalyst for the catalytic treatment of biomass by microwave ultraviolet light and a method for preparing the same and application thereof, and relates to a catalyst for the catalytic pretreatment of difficultly-degraded biomass such as stalk, straw, bagasse, aquatic plants, animal dropping, refuse, organic waste water, and the like and a method for preparing the same andapplication thereof. The invention belongs to a catalyst preparation technique and application of the catalyst in fields such as biology, environment, energy, and the like. The catalyst is characterized in that the catalyst is prepared from active components of a transition metal oxide MxOy, CeO2, ZrO2, gamma-Al2O3, TiO2 and SiO2 according to the weight ratio, and the components are mixed by wet type ball milling, formed, dried, calcined and activated to prepare the catalyst, wherein the active components comprises the following mass ratio: 10 to 30 percent of the transition metal oxide MxOy, 2 to 15 percent of the CeO2, 1 to 20 percent of the ZrO2, 20 to 60 percent of the gamma-Al2O3, 20 to 40 percent of the TiO2 and 5 to 20 percent of the clay SiO2; and the transition metal oxide MxOy is one of or a mixture of CuO, Fe2O3 and F3O4.

Description

technical field [0001] The present invention relates to a catalyst for microwave ultraviolet photocatalytic treatment of biomass and its preparation method and application, which can be used for microwave non-polar ultraviolet photocatalytic pretreatment of straw, rice straw, bagasse, aquatic plants, animal manure, garbage and organic waste water, etc. Biomass catalyst and its preparation and application. It belongs to catalyst preparation technology and its application fields in biology, environment and energy. Background technique [0002] With the rapid development of industry and the improvement of people's living standards, people's demand for energy is increasing, and the problem of energy shortage will become increasingly prominent. Biomass production capacity, as a green and renewable production capacity approach, has attracted extensive attention from scholars at home and abroad. Many countries invest a lot of human and financial resources in biomass production ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/83B01J21/04B01J21/06B01J21/08C02F1/32B09B3/00A62D3/176A62D3/178
Inventor 沈树宝徐夫元陈英文李星祝社民
Owner NANJING TECH UNIV
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