Catalyst for preparing hydrogen from hydrogen sulfide and preparation method thereof

A catalyst and hydrogen sulfide technology, applied in physical/chemical process catalysts, chemical instruments and methods, hydrogen production, etc., can solve the problems of unsatisfactory catalytic activity of catalysts and the influence of catalytic properties of catalysts without given catalyst preparation methods, etc. Achieve the effects of low cost, simple preparation and high catalytic activity at low temperature

Active Publication Date: 2012-11-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent does not give the preparation method of the catalyst and the influence of the preparation of the catalyst on its catalytic properties
[0007] People such as Fukuda used some metal sulfides such as titanium sulfide, copper sulfide and nickel sulfide as catalysts for the reaction of hydrogen sulfide and carbon monoxide to produce hydrogen (Journal of Catalysts, 49, 379 (1977); and Bulletin of Chemistry for Japan, 51, 150 (1978)), the catalytic activity of the catalyst is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] This example is used to illustrate the preparation of the catalyst.

[0048] Measure 200 mL of 1.0 mol / L nickel nitrate aqueous solution, and control the solution temperature to 70°C. Another 200 mL of 1.0 mol / L sodium carbonate aqueous solution was prepared, added to the above-mentioned nickel nitrate aqueous solution, and stirred at 70° C. for 1.0 h. Then prepare 400mL of 1.4mol / L sodium hydroxide solution, preheat it to 70°C and add it to the mixed solution of nickel nitrate and sodium carbonate to immediately produce nickel hydroxide precipitation. After the addition was complete, the mixture was aged at 70° C. for 5 h with stirring. After aging, the mixture was filtered, washed with deionized water, and dried at 110° C. to obtain nickel hydroxide powder. The above-mentioned nickel hydroxide powder was calcined at 350°C for 5 hours to obtain black-green solid nickel oxide powder. The nickel oxide powder is pressed into tablets, sieved, and 20-40 mesh particles ar...

Embodiment 2

[0050] This example is used to illustrate the preparation of the catalyst.

[0051] Adopt the same method of embodiment 1 to prepare catalyst, just the volumetric space velocity of hydrogen sulfide is 1200h -1 , curing time is 3h

Embodiment 3

[0053] This example is used to illustrate the preparation of the catalyst.

[0054] Adopt the same method of embodiment 1 to prepare catalyst, just change nickel nitrate into cobalt chloride, change sodium carbonate into potassium oxalate, change sodium hydroxide into sodium carbonate, and the contact time of hydrogen sulfide is 1000h -1 , The vulcanization time is 2.5h.

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Abstract

The invention relates to a catalyst for preparing hydrogen from hydrogen sulfide and a preparation method thereof. The catalyst is a bulk phase catalyst consisting of metal sulfur oxides and the metal is one or more selected from VIB group and VIII group transition metals. The method for preparing the catalyst is simple, has relatively low cost, and has high catalytic activity when catalysts a reaction of hydrogen sulfide and carbon monoxide to prepare hydrogen and carbonyl sulfide.

Description

technical field [0001] The invention relates to a catalyst for producing hydrogen from hydrogen sulfide and a preparation method thereof. Background technique [0002] Hydrogen sulfide is a highly toxic gas with the smell of rotten eggs, mainly from petroleum processing and low-quality natural gas fields. With the intensification of heavy and inferior crude oil and the exploitation of a large number of inferior natural gas fields, my country's hydrogen sulfide emissions have increased year by year. The traditional method for utilizing hydrogen sulfide is the Claus method, which selectively oxidizes hydrogen sulfide into sulfur and water. In the Claus method, the sulfur element in hydrogen sulfide is converted into sulfur, and the hydrogen element is converted into low-value-added water. Hydrogen is an important raw material that must be used in oil refining, and the demand for hydrogen in refineries is increasing year by year. The traditional method of producing hydrogen ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/02C01B3/06C01B31/26
CPCY02E60/36
Inventor 关莉莉汪颖吴佳舒兴田慕旭宏罗一斌
Owner CHINA PETROLEUM & CHEM CORP
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