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Solid solution catalyst for hydrogen production by partial oxidation reforming of methane in coke oven gas

A technology for producing hydrogen from coke oven gas and reforming, which is applied in chemical instruments and methods, hydrogen, inorganic chemistry, etc., and can solve problems such as low vaporization heat and loss

Inactive Publication Date: 2013-01-09
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Schmidt et al. found in their research that the monolithic catalyst prepared by the dip coating method is prone to sintering during calcination. Since nickel has a lower heat of vaporization than some noble metal catalysts, obvious loss occurs during the reaction.

Method used

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  • Solid solution catalyst for hydrogen production by partial oxidation reforming of methane in coke oven gas
  • Solid solution catalyst for hydrogen production by partial oxidation reforming of methane in coke oven gas
  • Solid solution catalyst for hydrogen production by partial oxidation reforming of methane in coke oven gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Weigh 58.20596g of Co(NO 3 ) 2 ·6H 2 O, 58.158g of Mg (NO 3 ) 2 ·6H 2O was dissolved in 10ml of distilled water to form a mixed solution of cobalt nitrate and magnesium nitrate. Stir well and evenly, after mixing, stir and evaporate to dryness on a constant temperature magnetic stirrer at 90°C-100°C, and then put it in an oven and bake at 110°C for 3 hours. Then put it into a muffle furnace to program the temperature rise, and raise the temperature to 800° C. at a rate of 5° C. per minute and keep it warm for 5 hours. After the heat preservation, it is finally cooled to room temperature with the furnace. The calcined catalyst was ground into powder and pressed into tablets with a pressure of 30KN. After the tablet is pressed, it is crushed and sieved to make catalyst particles of 20-40 mesh.

Embodiment 2

[0033] Weigh 29.079g Ni(NO 3 ) 2 ·6H 2 O was dissolved in 15ml of distilled water to form an aqueous solution of nickel nitrate. Then add 16.122g MgO to the nickel nitrate aqueous solution, stir well, mix well, stir fully at room temperature on a constant temperature magnetic stirrer for 12 hours, let it stand for 12 hours, filter, and then put the obtained solid in an oven at 110°C Bake for 3 hours. Then put it into a muffle furnace to program the temperature rise, and raise the temperature to 800° C. at a rate of 5° C. per minute for 5 hours, and then cool to room temperature with the furnace after the heat preservation. The calcined catalyst is then ground into powder and pressed into tablets with a pressure of 30KN. After the tablet is pressed, it is crushed and sieved to make catalyst particles of 20-40 mesh.

Embodiment 3

[0035] Weigh 46.5264g Ni(NO 3 ) 2 ·6H 2 O, 61.5384g Mg (NO 3 ) 2 ·6H 2 O was dissolved in 10ml of distilled water to form a mixed solution of nickel nitrate and magnesium nitrate. Stir well and evenly, after mixing, stir and evaporate to dryness on a constant temperature magnetic stirrer at 90°C-100°C, and then put it in an oven and bake at 110°C for 3 hours. Then put it into the muffle furnace to program the temperature rise, and raise the temperature to 800°C at a rate of 5°C per minute and keep it for 4 hours. room temperature. The calcined catalyst was ground into powder and pressed into tablets with a pressure of 30KN. After the tablet is pressed, it is put into the muffle furnace and the temperature is raised to 1200° C. at a rate of 5° C. per minute and kept for 10 hours. After cooling with the furnace, take out the diaphragm, crush and sieve to make catalyst particles of 20-40 mesh.

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Abstract

The invention relates to a solid solution catalyst for hydrogen production by partial oxidation reforming of methane in coke oven gas. The solid solution catalyst is a CoO / MgO solid solution catalyst comprising, by mass, 6.9-35% of Co, or an NiO / MgO solid solution catalyst comprising, by mass, 6.9-43% of Ni. The solid solution catalyst has the advantages that on a reforming test condition, the NiO / MgO solid solution catalyst is good in catalytic activity and high in stability, and the catalytic activity of the NiO / MgO solid solution catalyst keeps unchanged basically after the reforming test for 100 hours.

Description

technical field [0001] The invention relates to a coke oven gas methane partial oxidation reforming hydrogen production method, in particular to a coke oven gas methane partial oxidation reforming hydrogen production method using a solid solution catalyst. Background technique [0002] Hydrogen is an ideal clean energy, and its fuel product is only H 2 O, no pollution to the environment. There are a large number of blast furnaces in iron and steel enterprises, and coke oven gas will pollute the environment if it is directly discharged. In 2010, the total gas volume of coke oven by-products was as high as 165.1 billion Nm 3 . Because no suitable application can be found, a large amount of gas is burned in vain by lighting "sky lanterns", or directly discharged into the atmosphere, causing energy waste and environmental pollution. Coke oven gas is mainly composed of 57.9% H 2 , 31.6% CH 4 , 7.4% CO, 3.1% CO 2 And a small amount of high hydrocarbon composition. Rational...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/75B01J23/755C01B3/40
CPCY02P20/52
Inventor 杨志彬丁伟中王芳
Owner JIANGSU UNIV OF SCI & TECH
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