Method for hydrogen production by reforming of hydrogen sulfide and methane

A technology for reforming hydrogen production and hydrogen sulfide, applied in chemical instruments and methods, hydrogen, metal/metal oxide/metal hydroxide catalysts, etc. and other problems, to achieve the effect of good high temperature thermal stability, rich transformation and combination methods, and high activity

Active Publication Date: 2019-01-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problems of poor dispersion of catalyst active components and easy carbon deposition and deactivation of the catalyst in the method for hydrogen production by reforming hydrogen sulfide methane in the prior art, the present invention provides a method for hydrogen production by reforming hydrogen sulfide methane, which Utilizing composite metal oxides with a double perovskite structure, higher CH 4 Conversion and H 2 S conversion rate

Method used

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  • Method for hydrogen production by reforming of hydrogen sulfide and methane
  • Method for hydrogen production by reforming of hydrogen sulfide and methane

Examples

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Effect test

Embodiment 1

[0023] Take 16g Fe(NO 3 ) 3 ﹒ 9H 2 O, 11.5gNi(NO 3 ) 2 ﹒ 6H 2 Put O into a 500mL beaker, where the molar ratio of Fe to Ni is 1 / 1, add 100mL of distilled water, then place the beaker in a water bath at 80°C, stir at 400rpm, and stir until completely dissolved. Take 34.3g La(NO 3 ) 3﹒ 6H 2 O, put it in a beaker with 100mL distilled water, stir until it is completely dissolved. Then add the lanthanum nitrate solution dropwise into the mixed solution of ferric nitrate and nickel nitrate, and stir while adding dropwise. Take 40g of citric acid, the molar ratio of citric acid to the total amount of metal ions is 1.2:1, put it into a 100mL beaker and stir until completely dissolved, after stirring the above mixed solution for 30 minutes, slowly add the citric acid solution, dropwise While stirring. After stirring for 5 hours, the brown solution had been dehydrated and turned into a viscous gel. The gel was taken out and placed in a drying oven at 110° C. to dry overnigh...

Embodiment 2

[0025] Take 16g Fe(NO 3 ) 3 ﹒ 9H 2 O, 11.5gNi(NO 3 ) 2 ﹒ 6H 2 Put O into a 500mL beaker, where the molar ratio of Fe to Ni is 1 / 1, add 100mL of distilled water, then place the beaker in a water bath at 80°C, stir at 400rpm, and stir until completely dissolved. Take 34.3g La(NO 3 ) 3 ﹒ 6H 2 O, put it in a beaker with 100mL distilled water, stir until it is completely dissolved. Then add the lanthanum nitrate solution dropwise into the mixed solution of ferric nitrate and nickel nitrate, and stir while adding dropwise. Take 67g of citric acid, the molar ratio of citric acid to the total amount of metal ions is 1.2:1, put it into a 100mL beaker and stir until it is completely dissolved. After the above mixed solution is stirred for 30 minutes, slowly add the citric acid solution, while adding While stirring. After stirring for 5 hours, the brown solution had been dehydrated and turned into a viscous gel. The gel was taken out and placed in a drying oven at 110° C. to...

Embodiment 3

[0027] Take 16g Fe(NO 3 ) 3 ﹒ 9H 2 O, 11.5gNi(NO 3 ) 2 ﹒ 6H 2 Put O into a 500mL beaker, where the molar ratio of Fe to Ni is 1 / 1, add 100mL of distilled water, then place the beaker in a water bath at 80°C, stir at 400rpm, and stir until completely dissolved. Take 34.3g La(NO 3 ) 3 ﹒ 6H2O, put it into a beaker with 100mL of distilled water, and stir until completely dissolved. Then add the lanthanum nitrate solution dropwise into the mixed solution of ferric nitrate and nickel nitrate, and stir while adding dropwise. Take 100g of citric acid, the molar ratio of citric acid to the total amount of metal ions is 3:1, put it into a 100mL beaker and stir until it is completely dissolved. After the above mixed solution is stirred for 30 minutes, slowly add the citric acid solution, while adding While stirring. After stirring for 5 hours, the brown solution had been dehydrated and turned into a viscous gel. The gel was taken out and placed in a drying oven at 110° C. to ...

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Abstract

The invention relates to a method for hydrogen production by reforming of hydrogen sulfide and methane. According to the invention, hydrogen sulfide and methane are subjected to contact reaction withthe catalyst La2NiFeO6. The double-perovskite structure composite metal oxide is applied as a catalyst in the reaction of hydrogen production by reforming of hydrogen sulfide and methane. The catalysthas better high temperature thermal stability and higher activity than single oxide (like Al2O3). As the reaction is carried out at a high temperature of 800DEG C-1100DEG C, the composite oxide withthe double-perovskite structure is more suitable the reaction. In addition, the catalyst has high activity in catalyzing the reforming of hydrogen sulfide and methane for hydrogen production.

Description

technical field [0001] The invention relates to a method for producing hydrogen by reforming hydrogen sulfide methane, in particular to a method for producing hydrogen by reforming hydrogen sulfide methane using a double perovskite oxide catalyst. Background technique [0002] With the scarcity of non-renewable energy and the increasing requirements for environmental protection year by year, the development, utilization and research of natural gas, which has advantages in economy, safety and environmental protection, are also being deepened in countries all over the world. Whether it is used as civil fuel or industrial production raw material, the hydrogen sulfide contained in natural gas will cause corrosion of equipment and pipelines, poison the catalyst and cause environmental pollution. These have become the main problems in the processing and utilization of natural gas, so proper disposal or utilization of natural gas Hydrogen sulfide is a serious problem faced by my cou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/00C01B3/40B01J23/83
CPCB01J23/002B01J23/83B01J35/023B01J2523/00C01B3/40C01B2203/0227C01B2203/1058C01B2203/1241C01G53/006C01P2002/34B01J2523/3706B01J2523/842B01J2523/847Y02P20/52
Inventor 梁皓尹泽群刘全杰张锦桦
Owner CHINA PETROLEUM & CHEM CORP
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