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Preparation method of ordered mesoporous MgNi/WO3 methanation catalyst

A methanation catalyst and catalyst technology, which can be used in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, carbon compound catalysts, etc., and can solve the problems of low catalyst activity and poor stability.

Active Publication Date: 2020-06-26
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of low catalyst activity and poor stability, the present invention provides an ordered mesoporous MgNi / WO 3 Preparation method of methanation catalyst

Method used

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  • Preparation method of ordered mesoporous MgNi/WO3 methanation catalyst
  • Preparation method of ordered mesoporous MgNi/WO3 methanation catalyst
  • Preparation method of ordered mesoporous MgNi/WO3 methanation catalyst

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Embodiment

[0024] The chemical substance materials used in this embodiment are: P123, concentrated hydrochloric acid, n-butanol, tetraethyl orthosilicate (TEOS), ammonium metatungstate, magnesium nitrate, nickel nitrate, hydrofluoric acid (HF), deionized water, Ethanol, nitrogen, argon, carbon monoxide, hydrogen, the combined amounts are as follows: in grams, milliliters, centimeters 3 is the unit of measurement.

[0025]

[0026] Selection of the above-mentioned chemical substances and materials: The chemical substances and materials required for the preparation should be selected and controlled for quality and purity:

[0027]

[0028] An ordered mesoporous MgNi / WO 3 The preparation method of methanation catalyst comprises the following steps:

[0029] (1) Preparation of KIT-6

[0030] Weigh 20g±0.001g P123, 32ml±0.001mL concentrated hydrochloric acid, a certain amount of deionized water, mix and stir until completely dissolved, add 26g±0.001g n-butanol, stir for 2h, add TEOS,...

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Abstract

The invention relates to a preparation method of an ordered mesoporous MgNi / WO3 methanation catalyst. According to the preparation method, ordered mesoporous WO3 is taken as a carrier, Ni is taken asan active component, and Mg is taken as an auxiliary component. WO3 in the catalyst is a semiconductor material, and has good electron transmission performance and hydrogen overflow effect, when WO3 is used as a catalyst carrier, the electron cloud density of nickel can be increased, CO dissociation is facilitated, the H2 adsorption capacity of the catalyst can also be improved, CO and H2 are usedas the only two reactants for CO methanation reaction, and the two properties of WO3 are very beneficial to the reaction; the added MgO enhances the two properties, and the catalytic activity is further improved; moreover, the ordered mesoporous structure of WO3 has a confinement effect, and an electron transfer effect exists between MgO and WO3 and Ni species, so that the interaction force between nickel and WO3 is enhanced by MgO and WO3, and the stability of the catalyst is improved.

Description

technical field [0001] The invention relates to an ordered mesoporous MgNi / WO 3 The invention discloses a method for preparing a methanation catalyst, which belongs to the technical field of preparation of catalysts for producing synthetic natural gas from coke oven gas and coal. Background technique [0002] my country's energy structure rich in coal, poor in oil, and low in gas determines that coal has become the main primary energy consumption, and the extensive use of coal has caused environmental pollution and energy shortages; natural gas is widely used due to its clean and efficient characteristics, and my country The lack of natural gas reserves has led to an increase in its import ratio year by year. In order to reduce foreign dependence and improve the clean utilization of coal, it is an effective way to develop coal-based natural gas, and the methanation process is the core of coal-based natural gas technology. [0003] Semiconductor materials have an excellent ab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/888C07C1/04C07C9/04C10L3/08
CPCB01J23/888C07C1/0435C07C2523/888C10L3/08C07C9/04
Inventor 权燕红韩亚红赵金仙任军
Owner TAIYUAN UNIV OF TECH
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