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Ordered mesopore scheelite loaded nickel-based bio-oil reforming catalyst

A technology for reforming catalysts and scheelite, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, inorganic chemistry, etc. Low carbon rate, easy carbon accumulation and other issues

Inactive Publication Date: 2018-12-25
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be said that noble metal catalysts have good activity and low carbon deposition rate, but they are expensive and have limited reserves, which cannot meet the requirements of large-scale production of industrial catalysts.
However, the existing non-precious metal catalysts such as nickel still have disadvantages such as poor stability, easy carbon deposition, and easy deactivation, which greatly limit their practical industrial applications.

Method used

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  • Ordered mesopore scheelite loaded nickel-based bio-oil reforming catalyst
  • Ordered mesopore scheelite loaded nickel-based bio-oil reforming catalyst
  • Ordered mesopore scheelite loaded nickel-based bio-oil reforming catalyst

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0039] (1) Preparation of hard-templated SBA-15.

[0040] Dissolve 4 g of P123 in a mixed solution of 150 mL of deionized water and HCl, which is counted as solution A; add 8 g of tetraethyl orthosilicate (TEOS) dropwise into solution A, and then fully stir; The emulsion is poured into a polytetrafluoroethylene-based reaction kettle, placed in 100 o C in a constant temperature drying oven, stand for crystallization for 24 h; filter the crystallization product precipitated at the bottom of the reaction kettle, wash with deionized water, 50 o Dry at C; transfer the dried powder to a crucible for 500 o C roasting for 6 h, the resulting powder is SBA-15.

[0041] (2) Ordered mesoporous scheelite supports were prepared by dual-solvent hard template method.

[0042] According to the nitrogen physical adsorption results, the pore volume corresponding to 1 g of SBA-15 is calculated to be 2.4 mL. Divide 2.4 mL of distilled water into two equal parts, prepare 1 mol / L sodium tungstate ...

example 2

[0049] (1) Preparation of hard-templated SBA-15.

[0050] Dissolve 3 g of P123 in a mixed solution of 150 mL of deionized water and HCl, which is counted as solution A; add 6 g of tetraethyl orthosilicate (TEOS) dropwise into solution A, and then fully stir; The emulsion is poured into a polytetrafluoroethylene-based reaction kettle, placed in 100 o C in a constant temperature drying oven, stand for crystallization for 36 h; filter the crystallization product precipitated at the bottom of the reaction kettle, wash with deionized water, and o Dry at C; transfer the dried powder to a crucible for 400 o C roasting for 4 h, the resulting powder is SBA-15.

[0051] (2) Ordered mesoporous scheelite supports were prepared by dual-solvent hard template method.

[0052] According to the nitrogen physical adsorption results, the pore volume corresponding to 1.5 g of SBA-15 is calculated to be 2.7 mL. Divide 2.7mL of distilled water into two equal parts, prepare 2 mol / L sodium tungst...

example 3

[0056] (1) Preparation of hard-templated SBA-15.

[0057] Dissolve 5 g of P123 in a mixed solution of 150 mL of deionized water and HCl, which is counted as solution A; add 9 g of tetraethyl orthosilicate (TEOS) dropwise into solution A, and then fully stir; The emulsion is poured into a polytetrafluoroethylene-based reaction kettle, placed in 100 o C in a constant temperature drying oven, stand for crystallization for 24 h; filter the crystallized product precipitated at the bottom of the reaction kettle, wash with deionized water, and dry for 70 o Dry at C; transfer the dried powder to a crucible at 600 o C roasting for 4 h, the resulting powder is SBA-15.

[0058] (2) Ordered mesoporous scheelite supports were prepared by dual-solvent hard template method.

[0059] According to the nitrogen physical adsorption results, the pore volume corresponding to 1 g of SBA-15 is calculated to be 1.76 mL. Divide 1.76mL of distilled water into two equal parts, prepare 0.5 mol / L sodi...

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Abstract

The invention relates to an ordered mesopore scheelite loaded nickel-based bio-oil reforming catalyst which comprises catalyst active ingredients and a catalyst carrier. The catalyst active ingredients include, by weight, 10-30wt% of Ni and the balance of mesopore scheelite catalyst carrier. The catalyst has the advantages that scheelite large in specific surface area, low in cost and easy to getis adopted as the catalyst carrier, catalytic active component is nickel, and bio-oil molecules are enabled to be cracked and chain-broken to form high-quality synthesis gas of low molecular hydrocarbon and high-content hydrogen. The catalyst is simple to prepare, high in mechanical strength and catalytic activity and reproducible, can be used for bio-oil reforming hydrogen production and can be applied to biomass direct catalytic gasification hydrogen production.

Description

technical field [0001] The invention relates to a nickel-based bio-oil reforming catalyst supported by ordered mesoporous scheelite, that is, a method for preparing a catalyst for high-quality gas fuel by catalytic reforming of bio-oil cracked by biomass. Background technique [0002] The use of biomass to produce hydrogen is not only an effective use of abundant renewable resources, but also one of the effective ways to finally solve the huge environmental pollution caused by global fossil fuels. my country's fossil fuel resources are short and biomass resources are very rich. How to clean it cheaply? It is of great significance to the sustainable development of our country to transform biomass into the core power of the future hydrogen energy society: hydrogen fuel. Highly dispersed biomass and low energy density determine the high cost of collection and transportation and poor process economy. Rapid pyrolysis of biomass can produce bio-oil with high energy density, which c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/888B01J35/10C01B3/32
CPCC01B3/32B01J23/002B01J23/888C01B2203/0233C01B2203/1058C01B2203/1082B01J35/615B01J35/647
Inventor 刘庆张伟王美燕范树斌
Owner SHANDONG UNIV OF SCI & TECH
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