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Coke oven gas upgrading catalyst and preparation method and use thereof

A coke oven gas and catalyst technology, applied in the field of coke oven gas upgrading catalyst and its preparation, to achieve strong thermal stability, beneficial to ecological transformation, and high economic value

Pending Publication Date: 2019-07-16
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the experiment, the catalyst still found about 2% carbon deposits

Method used

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  • Coke oven gas upgrading catalyst and preparation method and use thereof
  • Coke oven gas upgrading catalyst and preparation method and use thereof
  • Coke oven gas upgrading catalyst and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Weigh 5.265g Ni(NO 3 ) 2 ·6H 2 O, 0.483g LiNO 3 , 1.539g Ce(NO 3 ) 3 ·6H 2 Dissolve the O reagent in deionized water to form a solution and add 10g of γ-Al to the solution 2 o 3 carrier. Stir at room temperature for 0.5-2h and then let it stand for 12 hours; bake the mixture at 90-130°C for 10 hours, then raise it to 800°C at a rate of 2-8°C per minute, keep it warm for 8 hours, and finally cool to room temperature with the furnace , to make a catalyst block, and then break and sieve the catalyst block to obtain 60-80 mesh Li / Ce / Ni / γ-Al 2 o 3 Catalyst particles.

Embodiment 2

[0041] Weigh 5.625g Ni(NO 3 ) 2 ·6H 2 O, 0.483g LiNO 3 , 1.554g La(NO 3 ) 3 ·6H 2 Dissolve O medicine with deionized water to form a solution and add 10g γ-Al to the solution 2 o 3 carrier. Stir at room temperature for 0.5-2h and then let it stand for 12 hours; bake the mixture at 90-130°C for 10 hours, then raise it to 800°C at a rate of 2-8°C per minute, keep it warm for 8 hours, and finally cool to room temperature with the furnace , to make a catalyst block, and then crush and sieve the catalyst block to obtain 60-80 mesh Li / La / Ni / γ-Al 2 o 3 Catalyst particles.

Embodiment 3

[0043] Weigh 5.084g NiSO 4 ·6H 2 O, 0.483g LiNO 3 , 1.539g Ce(NO 3 ) 3 ·6H 2 Dissolve the O reagent in deionized water to form a solution and add 10g of γ-Al to the solution 2 o 3 carrier. Stir at room temperature for 0.5-2h and then let it stand for 12 hours; bake the mixture at 90-130°C for 10 hours, then raise it to 800°C at a rate of 2-8°C per minute, keep it warm for 8 hours, and finally cool to room temperature with the furnace , to make a catalyst block, and then break and sieve the catalyst block to obtain 60-80 mesh Li / Ce / Ni / γ-Al 2 o 3 Catalyst particles.

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Abstract

The invention discloses a coke oven gas upgrading catalyst and a preparation method thereof. The catalyst is characterized by the following composition: xAyREzNi / Al2O3, wherein A is any one element selected from alkali metals Li, Na and K, in the content x of 0.5-2wt%; RE is any one element selected from rare-earth metals La, Ce and Nd, in the content y of 2-11wt%; the content z of Ni is 8-12wt%;and the particle size of the catalyst is 60-80 meshes. The preparation method of the catalyst comprises the following steps: sequentially dissolving a nickel salt, an alkali metal salt and a rare-earth metal salt in distilled water or deionized water at room temperature to form a solution, adding Al2O3 support thereto afterwards, stirring and standing, drying the mixture at 90-130 DEG C for 8-15 hours, and then sintering, crushing and screening the mixture to obtain the catalyst. The obtained catalyst exhibits high catalytic activity and strong carbon deposition resistance during the upgradingof coke oven gas.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a coke oven gas upgrading catalyst and its preparation method and application. Background technique [0002] CO 2 As a major greenhouse gas, it has a serious impact on the global climate. Excessive greenhouse gases in the atmosphere have a great negative effect on the climate and ecological environment. Therefore, research on CO 2 The comprehensive utilization of carbon dioxide has very important economic effects and strategic significance for the realization of low carbon. my country's industrial field iron and steel industry CO 2 Huge emissions, second only to power industry CO 2 big emitters. Hydrogen metallurgy is the solution to CO 2 Efficient way of emission, hydrogen replaces carbon as reducing agent, will fundamentally solve CO 2 emissions problem. At present, the stable supply of low-cost hydrogen-rich reducing gas sources is an important guarantee for the real...

Claims

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Application Information

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IPC IPC(8): B01J23/83C01B3/40C10K3/02
CPCB01J23/83C01B3/40C01B2203/0227C10K3/02Y02P20/52
Inventor 杨志彬张阳徐松陆昱沅蒲发源康婷鲁雄刚丁伟中
Owner JIANGSU UNIV OF SCI & TECH