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A kind of compound and its preparation method and application

A technology of composites and composite metals, applied in chemical instruments and methods, catalyst activation/preparation, chemical/physical processes, etc., can solve problems such as high energy consumption

Active Publication Date: 2021-08-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, non-noble metals are limited by their activity and need to be reacted at a higher temperature, which consumes a lot of energy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Commercially available copper-loaded alumina, commercially available zirconium sulfate and self-made composite metal oxide NdCoO with a perovskite structure 3-y Kneading and molding, drying and calcination to obtain a composite, the drying time is 4 hours, the drying temperature is 100°C; the calcination time is 6 hours, the temperature is 400°C.

[0020] The properties of the composite are as follows: the weight ratio of the copper-loaded alumina to zirconium sulfate is 7:1, the copper-loaded alumina and the composite metal oxide NdCoO with a perovskite structure 3-y The weight ratio is 7:1, based on the weight of alumina loaded with copper, and the content of copper as oxide is 15wt%.

[0021] Catalyst performance was evaluated by using coalbed methane deoxidation as a probe reaction, and the raw gas composition was: CH 4 20 vol%, O 2 3vol%, the balance is N 2 . The reaction temperature is 450°C and the volumetric space velocity is 12000 h -1 , after the reacti...

Embodiment 2

[0023] Commercially available copper-loaded alumina, commercially available zirconium sulfate and self-made composite metal oxide NdCoO with a perovskite structure 3-y Kneading and molding, drying and calcination to obtain a composite, the drying time is 4 hours, the drying temperature is 100°C; the calcination time is 6 hours, the temperature is 400°C.

[0024] The properties of the composite are as follows: the weight ratio of the copper-loaded alumina to zirconium sulfate is 8:1, the copper-loaded alumina and the composite metal oxide NdCoO with a perovskite structure 3-y The weight ratio is 10:1, based on the weight of alumina loaded with copper, and the content of copper as oxide is 10 wt%.

[0025] Catalyst performance was evaluated by using coalbed methane deoxidation as a probe reaction, and the raw gas composition was: CH 4 20 vol%, O 2 3vol%, the balance is N 2 . The reaction temperature is 450°C and the volumetric space velocity is 13000 h -1 , after the reac...

Embodiment 3

[0027] Commercially available copper-loaded alumina, commercially available zirconium sulfate and self-made composite metal oxide NdCoO with a perovskite structure 3-y Kneading and molding, drying and calcination to obtain a composite, the drying time is 4 hours, the drying temperature is 100°C; the calcination time is 6 hours, the temperature is 400°C.

[0028] The properties of the composite are as follows: the weight ratio of the copper-loaded alumina to zirconium sulfate is 5:1, the copper-loaded alumina and the composite metal oxide NdCoO with a perovskite structure 3-y The weight ratio is 5:1, based on the weight of alumina loaded with copper, and the content of copper as oxide is 20wt%.

[0029] Catalyst performance was evaluated by using coalbed methane deoxidation as a probe reaction, and the raw gas composition was: CH 4 20 vol%, O 2 3vol%, the balance is N 2 . The reaction temperature is 450°C and the volumetric space velocity is 11000 h -1 , after the reacti...

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PUM

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Abstract

A composite containing copper-loaded alumina, zirconium sulfate, and a composite metal oxide NdCoO having a perovskite structure 3‑y , y is an oxygen vacancy, and the weight ratio of the copper-loaded alumina and zirconium sulfate in the composite is 8:1-2:1, and the copper-loaded alumina and the zirconium sulfate with a perovskite structure in the composite Composite metal oxide NdCoO 3‑y The weight ratio is 10:1-5:1, based on the weight of aluminum oxide loaded with copper, the content of copper in terms of oxide is 5wt%-25wt%, the preparation method of the composite includes the following content: Copper alumina, zirconium sulfate and composite metal oxide NdCoO with perovskite structure 3‑y It is kneaded and shaped, and then dried and roasted to obtain a compound. The compound has the advantages of high activity, low reaction temperature, simple preparation method, low cost and the like when used for coal bed gas deoxidation.

Description

technical field [0001] The invention relates to a composite and its preparation method and application, in particular to a low-temperature high-activity coal bed gas deoxidation composite catalyst and its preparation method and application. Background technique [0002] my country is a big coal producing country, and a large amount of coalbed methane with different concentrations will be produced every year due to coal production. Developing effective coalbed methane utilization technology and reducing direct methane emissions are the key to building an energy-saving and environmentally friendly sustainable development model in my country and creating a low-carbon economy. an integral part of the system. Combining energy conservation and emission reduction and the improvement of environmental requirements, effectively and reasonably develop coalbed methane, a low-grade energy source, and convert it into usable resources, expand the scope and scale of coalbed methane use, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/055B01J37/02B01J37/08B01J37/10C10L3/10
Inventor 李杰张信伟倪向前王海洋
Owner CHINA PETROLEUM & CHEM CORP
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