Method of preparing supported metal nickel-based catalyst

A nickel-based catalyst and supported technology, which is applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, catalyst activation/preparation, etc. Long period and other issues, to achieve the effect of high catalytic regeneration performance, high catalytic activity, good catalytic performance

Active Publication Date: 2019-04-05
HEBEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for preparing a supported metal nickel-based catalyst, using microwave hydrothermal method to prepare a nickel aluminate-tourmaline composite material containing zinc oxide in one step, and then placing the obtained composite material Reduce in reducing atmosphere, make the supported metal nickel base catalyst of the nickel / nickel aluminate-tourmaline composite material doped with zinc oxide, the inventive method takes tourmaline as carrier, while increasing the distribution of nickel base catalyst, utilize The characteristic of spontaneous polarization greatly improves the carrying out of the catalytic reaction, doping the metal additive oxide zinc oxide, improving the dispersion of Ni, dispersing the electron distribution of Ni atoms, and overcoming the existence of products in the nickel-based catalysts prepared by the prior art. Irregular particles, severe agglomeration, cumbersome preparation process, low catalyst regeneration, long preparation cycle and high cost

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  • Method of preparing supported metal nickel-based catalyst

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Embodiment 1

[0038] The first step, the processing of tourmaline:

[0039] Measure tourmaline, deionized water and triethanolamine grinding aid in mass ratio as tourmaline: deionized water: triethanolamine grinding aid=1: 1: 0.01, under normal temperature and pressure, will measure Put tourmaline, deionized water and triethanolamine grinding aid together in a horizontal sand mill for 1 hour, keep the temperature range of the abrasive at 0-20°C, then wash the ground product with deionized water, and dry it at 60°C for 6 hours , roasting at 500°C for 3 hours, completing the treatment of tourmaline, and producing powdered tourmaline for subsequent use;

[0040] The second step, the preparation of reactant raw material mixture:

[0041] The nickel nitrate, aluminum nitrate and zinc nitrate that take required amount are dissolved in deionized water, make the concentration of Ni ion be 0.1mol / L, the mol ratio of three kinds of metal ions is nickel ion: aluminum ion: zinc ion=9: 20:1, stirred a...

Embodiment 2

[0047] The first step, the processing of tourmaline:

[0048] Measure tourmaline, deionized water and triisopropanolamine grinding aid=1: 1.5: 0.03 by mass ratio for tourmaline: deionized water: triisopropanolamine grinding aid, at normal temperature Press down, put the measured tourmaline, deionized water and triisopropanolamine grinding aid together in a disc sand mill and grind for 2 hours, keep the temperature of the abrasive in the range of 0-20°C, and then use the ground product Wash with ionized water, dry at 70°C for 9 hours, roast at 650°C for 4 hours, complete the treatment of tourmaline, and obtain powdered tourmaline for future use;

[0049] The second step, the preparation of reactant raw material mixture:

[0050] Nickel acetate, aluminum acetate and zinc acetate that take required amount are dissolved in deionized water, make the concentration of Ni ion be 0.3mol / L, the mol ratio of three kinds of metal ions is nickel ion: aluminum ion: zinc ion=8: 20:2, stirr...

Embodiment 3

[0056] The first step, the processing of tourmaline:

[0057] Tourmaline by mass ratio: deionized water: ethylene glycol grinding aid=1: 2: 0.05 measures required amount of tourmaline, deionized water and ethylene glycol grinding aid, under normal temperature and pressure, Measured tourmaline, deionized water and ethylene glycol grinding aid were placed together in a basket sand mill for grinding for 3 hours, keeping the abrasive temperature range from 0 to 20°C, and then the ground product was washed with deionized water, and ground at 80 Drying at ℃ for 12 hours, roasting at 800 ℃ for 5 hours, completing the treatment of tourmaline, and making powdered tourmaline for future use;

[0058] The second step, the preparation of reactant raw material mixture:

[0059] The nickel chloride, aluminum chloride and zinc chloride that take required amount are dissolved in deionized water, make the concentration of Ni ion be 0.5mol / L, the mol ratio of three kinds of metal ions is nickel...

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Abstract

The invention relates to a method of preparing a supported metal nickel-based catalyst and relates to a catalyst containing nickel. The method includes: preparing nickel aluminate / tourmaline compositecontaining a zinc oxide by means of a one-step microwave hydrothermal process, and subjecting the composite to reducing atmosphere reduction to obtain the supported metal nickel-based catalyst dopedwith zinc-oxide nickel / nickel aluminate / tourmaline composite. Tourmaline is used as a supporter herein, so that nickel-based catalyst distribution is increased; the characteristic spontaneous polarization helps greatly improve the progress of catalytic reaction; the metal aid oxide, zinc oxide, is doped herein, so that Ni dispersity is improved, and electron distribution of Ni atoms is dispersed;the defect is overcome that the nickel-based catalyst prepared by the prior art experiences irregular particles, severe agglomeration, complex preparation process, low catalyst regeneration, long preparation cycle and high cost.

Description

technical field [0001] The technical solution of the invention relates to a catalyst containing nickel, in particular to a method for preparing a supported metal nickel-based catalyst. Background technique [0002] Catalysts play an important role in the modern chemical industry. Nickel-based catalyst is a commonly used classical catalyst, which is widely used in hydrogenation, coupling, oxidation, organic synthesis and disproportionation chemical processes. [0003] Nickel-based catalysts are low in cost and easy to obtain, and have great potential in industrial application prospects. However, nickel-based catalysts are prone to carbon deposition during the reaction, resulting in deactivation and poor stability at high temperatures. [0004] The following published documents report the prior art of improving the catalytic performance of nickel-based catalysts: CN103977816A discloses a preparation method of nickel-based catalysts, which uses metallic nickel and aluminum as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80B01J37/34B01J37/10B01J37/18
CPCB01J23/002B01J23/80B01J37/10B01J37/18B01J37/346
Inventor 王菲高佩章梁金生丁有朋许天泽汤庆国
Owner HEBEI UNIV OF TECH
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