A Zn-Cr hydrotalcite-derived Ni-based catalyst for hydrogen production by autothermal reforming of acetic acid

A nickel-based catalyst, autothermal reforming technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, heterogeneous catalyst chemical elements, etc., can solve catalyst deactivation, intolerance Solve problems such as sintering and poor stability, and achieve the effects of stable skeleton structure, improved oxidation resistance, and good thermal stability
CN108940295BActive Publication Date: 2019-05-03CHENGDU UNIVERSITY OF TECHNOLOGY
3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGDU UNIVERSITY OF TECHNOLOGY
Publication Date
2019-05-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a zinc-chromium hydrotalcite derivative nickel-based catalyst for autothermal reforming of acetate to produce hydrogen. In view of the problem that deactivation of the catalyst is caused by change of a catalyst structure of an existing catalyst in autothermal reforming of acetate and oxidation and sintering of active ingredients, the catalyst with stable structure, sintering resistance, carbon accumulation resistance, oxidation resistance and high activity is provided. Chemical components of the catalyst disclosed by the invention are (ZnO)a(NiO)b(CrO1.5)c, wherein a is 0.55 to 0.68, b is 0.12 to 0.18, and c is 0.14 to 0.33. According to the zinc-chromium hydrotalcite derivative nickel-based catalyst disclosed by the invention, a precursor of a Zn-Cr carbonate typehydrotalcite structure is prepared by adopting a co-precipitation method, and nickel as an active ingredient and chromium oxide as an auxiliary are introduced, zinc is replaced by the nickel, and thenickel and the chromium oxide enter into a framework of a hydrotalcite-like substance and a position of a laminated plate; a Zn-Ni-Cr-O compound oxide catalyst containing nickel spinel, which is roasted, is obtained, so that reduction of the nickel is promoted, the catalytic performance of the catalyst is improved, and the stable zinc oxide framework and the spinel structure are formed, and the oxidation resistance, the carbon accumulation resistance and the sintering resistance abilities of the catalyst in the autothermal reforming of the acetate are improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a nickel-based catalyst for autothermal reforming of acetic acid to produce hydrogen, in particular to a nickel-based catalyst for autothermal reforming of acetic acid to produce hydrogen, which uses a zinc-chromium hydrotalcite structure as a precursor. The field of producing hydrogen by thermal reforming. Background technique

[0002] With the progress of the times and the rapid development of society, people's demand for energy has also increased. Fossil fuels are the main energy carrier today, but fossil fuels also bring environmental pollution problems. Finding efficient new energy sources to replace fossil fuels is an important goal of all countries today. Hydrogen is a clean secondary energy source. Combusting one gram of hydrogen can release 142 kilojoules of heat, which is three times the calorific value of gasoline. It is considered to be an ideal energy source in the 21st century. Hydrogen is widely distributed in...

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