Core-shell cerium oxide-coated nickel catalyst for methanation, and preparation method and application thereof

A methanation catalyst, a core-shell type technology, which is applied in the field of preparation and application of synthetic replacement natural gas methanation catalysts, can solve problems such as catalyst activity decline, and achieve the effects of inhibiting migration, accurate and detailed data, and high methane selectivity.

Active Publication Date: 2015-10-14
DATONG COAL MINE GRP +1
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a core-shell type cerium oxide-coated nickel methanation catalyst and its preparation method and applic

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Core-shell cerium oxide-coated nickel catalyst for methanation, and preparation method and application thereof
  • Core-shell cerium oxide-coated nickel catalyst for methanation, and preparation method and application thereof
  • Core-shell cerium oxide-coated nickel catalyst for methanation, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be further described below in conjunction with concrete practice, and the selection of chemical raw material consumption, raw material purity and reaction vessel in the following description is all in order to illustrate the present invention better, and the present invention is not limited to following specific implementation content.

[0028] In addition, for the activity evaluation test of the catalyst prepared in the present invention in the methanation reaction, the instrument adopted is as follows: Shanghai Haixin Chromatography Co., Ltd. GC-950 type gas chromatograph, thermal conductivity cell detector, chromatographic column are carbon Molecular sieve TDX-01, carrier gas Ar, mainly analyze H in reformed gas 2 , CO, CO 2 and CH 4 ; Capillary column is Agilent PLOT Al 2 o 3 , the inner diameter of the column is 0.35mm, and the column length is 50m. 2 and higher hydrocarbons.

[0029] 1. Raw material preparation:

[0030]

[0031...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention specifically relates to a core-shell cerium oxide-coated nickel catalyst for methanation, and a preparation method and application thereof, belonging to the field of preparation and application of methanation catalysts used for synthesis of substituted natural gas. The preparation method comprises the following steps: (1) preparation of core-shell nickel oleate-coated HPS sphere; (2) preparation of a precursor solution capable of forming a cerium oxide shell layer; and (3) preparation of a Ni-coated HPs-coated CeO2 precursor. The preparation method for the core-shell cerium oxide-coated nickel catalyst used for methanation is advanced, has accurate and detailed data and produces the catalyst with high quality and high purity, as high as 98%; the produced catalyst can effectively inhibit migration, agglomeration and sintering of the active component Ni at high temperature through confinement effect of the shell layer, prevents growth of Ni crystal grains to inhibit carbon deposit and has high catalytic activity, high methane selectivity and good stability; and the preparation method is an ideal method for preparation of the anti-sintering and anti-carbon deposit methanation catalyst.

Description

technical field [0001] The invention relates to the field of preparation and application of a synthetic replacement natural gas methanation catalyst, in particular to a core-shell type cerium oxide-coated nickel methanation catalyst and its preparation method and application. Background technique [0002] Energy and the environment are two major challenges facing the sustainable development of human society. my country's long-term coal-based energy consumption structure has led to increasingly prominent environmental problems. Among them, natural gas, as a clean energy with high calorific value, can effectively reduce the occurrence of smog weather and total carbon emissions. Therefore, the development of coal-based natural gas is of great significance to realize the clean and efficient utilization of coal and alleviate the contradiction between supply and demand of natural gas. [0003] The key technology of coal-to-natural gas is methanation reaction, which refers to CO o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J23/83C07C1/04C07C9/04
Inventor 蒋煜任军苗育青秦志峰常晓华刘轶张德良侯宝月
Owner DATONG COAL MINE GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap