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Method for preparing metallic nickel-loaded catalyst by using ion exchange process, and catalyst and application thereof

A technology of supported catalyst and ion exchange method, which is used in the preparation of metal nickel supported catalyst, metal nickel supported catalyst, and application fields in catalytic biomass gasification, and can solve the requirements of high equipment requirements, equipment and energy consumption in gasification conditions. high, incomplete biomass gasification and other problems, to achieve the effect of reducing production costs, energy costs, and carbon deposits.

Active Publication Date: 2017-06-30
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Biomass gasification technology is the most promising technology for the effective utilization of biomass, but at the same time, there are still many problems that need to be solved urgently, such as the low calorific value of light gas generated, incomplete biomass gasification, and gas purification. Incomplete, gasification conditions have high requirements for equipment, etc.
At present, there are many biomass gasifiers in the world, and biomass gasification is put into fuel production and power generation industry, but the reaction temperature of the gasifier is generally 800°C-1200°C, the requirements for equipment and energy consumption high

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0027] 1, the ion exchange method prepares metallic nickel supported catalyst, and its steps are as follows:

[0028] (1) Add 10.5 g of nickel sulfate hexahydrate evenly to deionized water at 25°C under constant temperature stirring, and stir for 0.5 h until the solution is completely dissolved to obtain the mixed system I.

[0029] (2) Add ammonia water (the mass percentage of ammonia water is 28%) dropwise to the mixed system I obtained in step (1) and keep stirring to adjust the pH value of the solution to 11 to obtain the mixed system II.

[0030] (3) Immerse the resin in the mixed system II with a pH value of 11 obtained in step (2), stir it at room temperature for 24 h, take it out, wash it with deionized water 5-6 times, and dry it under vacuum at 80°C for ≥24 h. At a heating rate of 10°C / min, N 2 Heating to 500°C for calcination under the atmosphere, and then standing at 500°C for 0.5 h to obtain the metal nickel supported catalyst.

[0031] 2. The metal nickel-suppo...

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Abstract

The invention discloses a method for preparing a metallic nickel-loaded catalyst by using an ion exchange process. The method comprises the following three steps: preparation of a nickel sulfate solution; adjustment of the pH value of a nickel-containing solution; and preparation of the nickel-loaded catalyst. Compared with the prior art, the method provided by the invention has the advantages of usage of more widely available raw material and mild reaction conditions. The invention also discloses a method for catalyzing gasification of biomass by using the metallic nickel-loaded catalyst prepared in the invention. Compared with conventional synthetic methods and products, the catalyst prepared by using the method provided by the invention has the advantages of high conversion rate, substantially reduced carbon deposition, long service life, high selectivity and stable activity in a long period of time.

Description

technical field [0001] The invention belongs to the field of chemical synthesis, and in particular relates to a preparation method of a metal nickel-loaded catalyst, a metal nickel-loaded catalyst prepared by the method and an application method in catalytic biomass gasification. Background technique [0002] With the decrease of fossil resources and the global environmental problems caused by the use of fossil resources, it is increasingly urgent to develop new energy, improve energy structure and promote the development of renewable energy. In recent years, biomass resources, mainly crops, forestry, livestock and municipal solid waste, have attracted worldwide attention due to their advantages such as storability, large reserves, renewability and carbon cycle. Therefore, the conversion of biomass resources into high-added products and high-efficiency energy is a very promising topic. [0003] Gasification is one of the most effective means of biomass energy utilization, b...

Claims

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Application Information

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IPC IPC(8): B01J31/26C10B53/02C10B57/06
CPCB01J31/26C10B53/02C10B57/06Y02E50/10
Inventor 曹景沛赵小燕任杰王敬贤任雪宇朱陈魏富郝志强
Owner CHINA UNIV OF MINING & TECH