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Preparation and reforming methods of catalyst for hydrogen production by reforming light alkane and application of catalyst

A technology for reforming hydrogen and low-carbon alkanes, applied in catalyst activation/preparation, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve environmental pollution and other problems, and achieve simple treatment methods , improve the utilization rate, and have good application prospects

Pending Publication Date: 2021-01-29
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to address the shortcomings of the prior art described above, to provide a method for preparing a catalyst for hydrogen production by reforming low-carbon alkane; to modify and improve the sulfur resistance of the catalyst from the perspective of resource utilization and environmental protection , not only can efficiently carry out the dry reforming reaction of low-carbon alkanes and carbon dioxide, effectively absorb and decompose the hydrogen sulfide in it, solve the problem of environmental pollution, but also can be regenerated by roasting

Method used

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  • Preparation and reforming methods of catalyst for hydrogen production by reforming light alkane and application of catalyst
  • Preparation and reforming methods of catalyst for hydrogen production by reforming light alkane and application of catalyst
  • Preparation and reforming methods of catalyst for hydrogen production by reforming light alkane and application of catalyst

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Embodiment 1

[0034] A method for preparing a catalyst for hydrogen production by reforming low-carbon alkane, comprising the following steps:

[0035] (1) Use a 40-mesh sieve to screen the microsphere silica gel to make it uniform in particle size; put the screened microsphere silica gel into a nitric acid solution with a concentration of 34% and soak for 9 hours; obtain the obtained microsphere silica gel after washing with deionized water Dry in an oven at 110°C for 12 hours, bake in a muffle furnace at 550°C for 3 hours, and cool naturally to room temperature to obtain SiO 2 carrier;

[0036] (2) 0.91g Ni(NH 3 ) 6 Cl 2 ·6H 2 O was dissolved in 3.5ml of deionized water, the pH was adjusted to 11 with ammonia water, and then 2g of SiO was added 2 Carrier, after stirring for 5 minutes, 41kHz ultrasonic for 10 minutes, then put it in a 110°C oven for 12 hours, then put it in a 550°C muffle furnace for 3 hours and cool to room temperature to get the catalyst Ni / SiO 2 ;

[0037] (3) 0....

Embodiment 2

[0040] A method for preparing a catalyst for hydrogen production by reforming low-carbon alkane, comprising the following steps:

[0041] (1) Use a 60-mesh sieve to screen the microsphere silica gel to make it uniform in particle size; put the screened microsphere silica gel into a nitric acid solution with a concentration of 34% and soak for 9 hours; obtain the obtained microsphere silica gel after washing with deionized water Dry in an oven at 180°C for 12 hours, bake in a muffle furnace at 500°C for 3 hours, and cool naturally to room temperature to obtain SiO 2 carrier;

[0042] (2) 0.91g Ni(NH 3 ) 6 Cl 2 ·6H 2 Dissolve O in 3.5ml deionized water, adjust the pH to 10 with ammonia water, then add 2g SiO 2 Carrier, stirred for 5 minutes, 50kHz ultrasonic for 8 minutes, then put it in a 120°C oven for 10 hours, then put it in a 500°C muffle furnace for 2 hours and cooled to room temperature to obtain the catalyst Ni / SiO 2 ;

[0043] (3) 0.46g (NH 4 ) 6 Mo 7 o 24 4H...

Embodiment 3

[0047] A method for preparing a catalyst for hydrogen production by reforming low-carbon alkane, comprising the following steps:

[0048] (1) Use a 50-mesh sieve to screen the microsphere silica gel to make it uniform in particle size; put the screened microsphere silica gel into a nitric acid solution with a concentration of 34% and soak for 9 hours; obtain the obtained microsphere silica gel after washing with deionized water Dry in an oven at 110°C for 12 hours, bake in a muffle furnace at 550°C for 3 hours, and cool naturally to room temperature to obtain SiO 2 carrier;

[0049] (2) 0.91g Ni(NH 3 ) 6 Cl 2 ·6H 2 O was dissolved in 3.5ml of deionized water, the pH was adjusted to 11 with ammonia water, and then 2g of SiO was added 2 The carrier, after stirring for 5 minutes, 50kHz ultrasound for 10 minutes, then put it in a 110°C oven for 12 hours after standing still for 9 hours, then put it in a 550°C muffle furnace for 3 hours and cool to room temperature to get the ...

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Abstract

The invention discloses preparation and reforming methods of a catalyst for hydrogen production by reforming light alkane and application of the catalyst. The preparation method comprises the following steps: preparing Ni / SiO2 from Ni (NH3) 6Cl2. 6H2O, and then adding the Ni / SiO2 into an aqueous solution of (NH4) 6Mo7O24. 4H2O to obtain the catalyst. The invention further discloses a method for preparing hydrogen and carbon monoxide through catalytic reforming of light alkane and carbon dioxide. The preparation method has the beneficial effects that the sulfur resistance of the catalyst can beenhanced; the treatment method is simple; important energy and environmental protection significance is realized; and the catalyst is used for hydrogen production by reforming light alkane in a sulfur-containing atmosphere and catalytically reforms the light alkane and carbon dioxide in the sulfur-containing atmosphere, the conversion rate of the light alkane and the carbon dioxide can reach 90%or above, the sulfur resistance can be enhanced by one time or above, and the catalyst has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of energy functional materials, in particular to a preparation and reforming method of a catalyst for hydrogen production by reforming low-carbon alkane and carbon dioxide in sulfur-containing gas to prepare hydrogen and carbon monoxide and its application. Background technique [0002] With the consumption of non-renewable energy and the increase of environmental protection requirements year by year, the development, utilization and research of various renewable energy sources in the world are also in-depth. Natural gas with low-carbon alkanes as the main component has been endowed with high expectations as a high-quality energy source with advantages such as economy, safety, and environmental protection. In addition to being obtained from conventional natural gas resources, natural gas also widely exists in coalbed methane (existing Natural gas in coal seams is an associated mineral resource of coal), sha...

Claims

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Application Information

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IPC IPC(8): B01J23/883B01J37/34B01J37/08B01J37/18C01B3/40C10J1/20
CPCB01J23/883B01J37/343B01J37/082B01J37/18C10J1/20C01B3/40C01B2203/0238C01B2203/1082C01B2203/1058Y02P20/52Y02P20/584
Inventor 何德东刘旭鹏张宜民严峻凯毛静曾瑞明罗永明
Owner KUNMING UNIV OF SCI & TECH
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