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Method for producing hydrogen by reforming methane hydrogen sulfide

A technology for producing hydrogen and hydrogen sulfide by reforming, applied in chemical instruments and methods, hydrogen, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of low conversion rate, poor high temperature stability, etc., and achieve high conversion high efficiency, good stability and simple preparation method

Active Publication Date: 2020-09-11
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 problem of using Al 2 o 3 Series catalysts have poor high temperature stability, resulting in H 2 For the problem of low conversion rate of S, the present invention intends to provide a method for hydrogen production by reforming methane hydrogen sulfide, which is catalyzed by a catalyst with a perovskite structure, which has good high temperature stability, high catalyst activity, H 2 Features of high conversion rate

Method used

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  • Method for producing hydrogen by reforming methane hydrogen sulfide
  • Method for producing hydrogen by reforming methane hydrogen sulfide

Examples

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Embodiment 1

[0026] Take 49.15g Fe(NO 3 ) 3 ·6H 2 Put O into a 500mL beaker, add 100mL of distilled water, place in a water bath at 80°C, and stir at 400rpm. 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 ferric nitrate solution, and stir while adding dropwise. Take 40g of citric acid, 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, and stir while adding it dropwise. After stirring for 5 hours, the 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 overnight. Then take out the dried perovskite precursor, place it in a muffle furnace, raise the temperature from room temperature to 400 °C at a rate of 3 °C / min, roast at a constant temperature for 3 hours, and then inc...

Embodiment 2

[0029] Take 49.15g Fe(NO 3 ) 3 ·6H 2 Put O into a 500mL beaker, add 100mL of distilled water, place in a water bath at 80°C, and stir at 400rpm. 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 ferric nitrate solution, and stir while adding dropwise. Take 40g of citric acid, 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, and stir while adding it dropwise. After stirring for 5 hours, the 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 overnight. Then take out the dried perovskite precursor, place it in a muffle furnace, raise the temperature from room temperature to 400 °C at a rate of 3 °C / min, roast at a constant temperature for 3 hours, and then inc...

Embodiment 3

[0031] Take 49.15g Fe(NO 3 ) 3 ·6H 2 Put O into a 500mL beaker, add 100mL of distilled water, place in a water bath at 80°C, and stir at 400rpm. 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 ferric nitrate solution, and stir while adding dropwise. Take 40g of citric acid, 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, and stir while adding it dropwise. After stirring for 5 hours, the 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 overnight. Then take out the dried perovskite precursor, place it in a muffle furnace, raise the temperature from room temperature to 400 °C at a rate of 3 °C / min, roast at a constant temperature for 3 hours, and then inc...

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Abstract

The invention relates to a method for producing hydrogen by reforming methane and hydrogen sulfide. According to the method, hydrogen sulfide, methane and a catalyst are subjected to a contact reaction, wherein the catalyst comprises, by mass, 5-65% of Fe2O3, 1-20% of Co2O3, and 15-94% of LaMO3, LaMO3 is a carrier having a perovskite structure, and M is at least one selected from Co, Fe and Ni. According to the present invention, the perovskite type oxide is used as the carrier, and supports Fe2O3 and Co2O3 as the active components, wherein the perovskite type oxide has good stability at a high temperature, is suitable for high temperature reactions, and is rich in oxygen vacancies and lattice oxygen so as to easily activate methane and hydrogen sulfide, and Fe2O3 and Co2O3 are used as thedouble active components so as to effectively improve the conversion rates of methane and hydrogen sulfide and lower the reaction temperature, such that the reaction is performed at the relatively low temperatures, the reactants have high conversion rates, and the energy consumption is reduced.

Description

technical field [0001] The invention relates to a method for producing hydrogen by reforming methane hydrogen sulfide, in particular to using a catalyst with a perovskite structure to catalyze the reforming of methane hydrogen sulfide, which belongs to the catalyst technology in the field of methane reforming hydrogen production. Background technique [0002] The main form of sulfur in natural gas is H 2 S, and the rest are organic sulfur such as mercaptans and sulfides, which will also be converted into H through hydrogenation 2 S. h 2 S is a highly toxic, foul-smelling, and highly corrosive gas. Therefore, sulfur-containing natural gas will cause a series of complicated problems in drilling, gas production, and gas transmission. Corrosion, resulting in huge economic losses. Therefore, proper disposal or utilization of H 2 S is also a severe problem faced by my country's petrochemical industry. [0003] Currently, my country's H 2 The S utilization technology is also...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/40B01J23/83
CPCY02P20/52
Inventor 梁皓尹泽群刘全杰
Owner CHINA PETROLEUM & CHEM CORP
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