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Catalyst of mixed conductor film reactor for hydrogen production from coke oven gas and preparation method thereof

A technology of mixed conductor film and coke oven gas, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of lack of scale and economy , to achieve the effect of low product cost, excellent CH4 conversion rate and guaranteed stability

Inactive Publication Date: 2009-07-22
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the use of renewable energy such as solar energy, wind energy, and geothermal energy to produce hydrogen is the most ideal model, it still does not have scale and economy

Method used

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  • Catalyst of mixed conductor film reactor for hydrogen production from coke oven gas and preparation method thereof
  • Catalyst of mixed conductor film reactor for hydrogen production from coke oven gas and preparation method thereof
  • Catalyst of mixed conductor film reactor for hydrogen production from coke oven gas and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0026] Take 2.9915g Ni(NO 3 ) 2 ·6H 2 O, 2.7086g Ce(NO 3 ) 3 ·6H 2 O and 0.1549g LiNO 3 Make a solution with deionized water. 5 g of gamma alumina support was added to the solution, stirred thoroughly and impregnated for 24 hours, stirring once an hour during this period. The impregnated catalyst was dried at 100° C. for 15 hours in a blast drying oven. The dried raw materials were placed in a muffle furnace and calcined at 800 °C for 8 hours in an air atmosphere. Sieve the sintered particles to obtain particles with a diameter of 0.6-0.9 mm, which is the desired catalyst. The catalyst is Ni-Li 2 O-CeO 2 / γAl 2 o 3 , where Ni, Li 2 O and CeO 2 The weight percentages are 9%, 0.5% and 16%. The effect of the catalyst obtained in this example as a mixed conductor membrane reactor catalyst for hydrogen production from coke oven gas can be seen in figure 1 .

Embodiment 2

[0028] Take 2.9723g Ni(NO 3 ) 2 ·6H 2 O, 0.1482g LiNO 3 , 1.2109g Ce(NO 3 ) 3 ·6H 2 O and 0.1481gZr(NO 3 ) 4 ·5H 2 O was made into a solution with deionized water. 5 g of gamma alumina support was added to the solution, stirred thoroughly and impregnated for 24 hours, stirring once an hour during this period. The impregnated catalyst was dried at 100° C. for 15 hours in a blast drying oven. The dried raw materials were placed in a muffle furnace and calcined at 800 °C for 8 hours in an air atmosphere. Sieve the sintered particles to obtain particles with a diameter of 0.6-0.9 mm, which is the desired catalyst. The catalyst is Ni-Li 2 O-ZrO 2 -CeO 2 / γAl 2 o 3 , where Ni, Li 2 O, ZrO 2 and CeO 2 The weight percentages are 10%, 0.5%, 2% and 8%. The effect of the catalyst obtained in this example as a mixed conductor membrane reactor catalyst for hydrogen production from coke oven gas can be seen in figure 2 .

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Abstract

The invention relates to a catalyst for a mixed conductor membrane reactor which preparing hydrogen by coke oven gas in a mixed conductor membrane reactor and a method for preparing the same, and belongs to the technical field of coke oven gas catalytic reforming and catalysts. The catalyst takes gamma aluminum oxide as a carrier, nickel as an active component, lithium oxide as an auxiliary agent, and cerium oxide and / or zirconium oxide as an additive. The method for preparing the catalyst adopts a co-dipping technique; mixed nitrate solution of nickel, cerium, zirconium and lithium is added with the gamma aluminum oxide for dipping for 24 hours, dried, calcined at a temperature of between 700 and 900 DEG C for 8 hours and screened to obtain the necessary catalyst. Under the conditions of normal temperature, a fixed bed membrane reactor and reaction temperature of between 800 and 900 DEG C, the catalyst can effectively improve the oxygen permeation capability of the oxygen permeation membrane reactor; moreover, the catalyst also has excellent CH4 conversion rate and selectivity of H2 and CO, so that the catalyst of the invention is a desirable catalyst for preparing the hydrogen by the coke oven gas in the mixed conductor membrane reactor.

Description

technical field [0001] The invention relates to a catalyst for a coke oven gas hydrogen production mixed conductor membrane reactor and a preparation method thereof, belonging to the technical field of coke oven gas catalytic reforming and catalysts. Background technique [0002] Due to its high efficiency and environmental protection, hydrogen energy is considered to be one of the ideal energy sources in the 21st century. At present, in order to realize the widespread utilization of hydrogen energy, the development of large-scale and economical preparation technologies is a key issue to be solved. Hydrogen energy is a secondary energy source and can only be obtained by transforming other energy sources. Although it is the most ideal model to produce hydrogen from renewable energy such as solar energy, wind energy, and geothermal energy, it still does not have scale and economy. The current methods for large-scale hydrogen production in the world are mainly the electrolysi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/78B01J23/83B01J21/06C01B3/26
Inventor 沈培俊周宇鼎杨志彬丁伟中黄少卿张玉文
Owner SHANGHAI UNIV
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