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Composite copper oxide catalyst, preparation method and application

A catalyst, copper oxide technology, applied in catalyst activation/preparation, Raney-type catalysts, physical/chemical process catalysts, etc., can solve problems such as being unsuitable for large-scale industrial applications, unable to meet process requirements, and serious environmental pollution. Achieve the effect of easy recovery, high copper loading and simple preparation process

Pending Publication Date: 2022-05-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN103511A discloses a method for deep removal of CO from α-olefins and saturated hydrocarbons to less than 0.3ppm. The catalyst belongs to copper-chromium catalyst, but the space velocity of the processed material is too small, only 2.3-5hr -1 , and the catalyst preparation process uses chromium salts, which causes serious environmental pollution and is not suitable for large-scale industrial applications
Due to the low utilization rate of CuO, the existing catalysts cannot meet the requirements of the process

Method used

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  • Composite copper oxide catalyst, preparation method and application
  • Composite copper oxide catalyst, preparation method and application
  • Composite copper oxide catalyst, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] (1) the powdery phenolic resin of 200g is fully mixed with the curing agent hexamethylenetetramine of 24g with a high-speed mixer, obtains the compound of 224g;

[0085] (2) The above-mentioned mixture of 100g is fully mixed with the copper powder of 20g melamine, the copper powder of 545g, the aluminum powder of 468g and the zinc powder of 100g with a high-speed mixer; Molded on the tablet press, formed into a sheet with a thickness of 2 mm; the temperature of the tablet press was raised to 150 ° C, and the formed sheet was put into the mold again and cured for 10 minutes under a pressure of 5 MPa on the tablet press; the cured 2 mm The thick sheet is cut into small particles to obtain the catalyst precursor;

[0086] (3) Measure 200 mL of the small particles obtained in step (2), and carbonize them in a tubular high-temperature electric furnace at a heating rate of 10°C / min at a furnace temperature of 650°C for 3 hours under nitrogen protection at a flow rate of 200mL...

Embodiment 2

[0089] (1) the powdery phenolic resin of 200g is fully mixed with the curing agent hexamethylenetetramine of 24g with a high-speed mixer, obtains the compound of 224g;

[0090] (2) Fully mix 100g of the above compound with 10g of melamine formaldehyde resin, 545g of copper powder, 468g of aluminum powder and 50g of zinc powder with a high-speed mixer; raise the temperature of the tablet press to 100°C, and put the above materials into the mold Molding is performed on a tablet press to form a sheet with a thickness of 2mm; the temperature of the tablet press is raised to 140°C, and the formed sheet is put into the mold again and cured for 12min under a pressure of 5MPa on the tablet press; the cured The 2mm thick sheet is cut into small particles to obtain the catalyst precursor;

[0091] (3) Measure 200 mL of the small particles obtained in step (2), and carbonize them in a tubular high-temperature electric furnace at a heating rate of 10°C / min at a furnace temperature of 650°...

Embodiment 3

[0094](1) the powdery phenolic resin of 200g is fully mixed with the curing agent hexamethylenetetramine of 24g with a high-speed mixer, obtains the compound of 224g;

[0095] (2) Fully mix 100g of the above compound with 5g of melamine formaldehyde resin, 545g of copper powder, 468g of aluminum powder and 200g of zinc powder with a high-speed mixer; raise the temperature of the tablet press to 110°C, and put the above materials into the mold Molding is carried out on the tablet press to form a sheet with a thickness of 2 mm; the temperature of the tablet press is raised to 120 ° C, and the formed sheet is put into the mold again and cured for 20 minutes under a pressure of 4 MPa on the tablet press; the cured The 2mm thick sheet is cut into small particles to obtain the catalyst precursor;

[0096] (3) Measure 200 mL of the small particles obtained in step (2), and carbonize them in a tubular high-temperature electric furnace at a heating rate of 10°C / min at a furnace tempera...

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Abstract

The invention discloses a composite copper oxide catalyst, a preparation method and application. The catalyst comprises a continuous phase and a dispersed phase, the continuous phase is N-doped continuous phase carbon; the dispersed phase is copper-aluminum-zinc ternary alloy particles and copper oxide particles; wherein the copper-aluminum-zinc ternary alloy particles and the copper oxide particles are uniformly or non-uniformly dispersed in the continuous phase carbon; the N-doped continuous phase carbon is obtained by carbonizing a carbonizable organic matter or a mixture of the carbonizable organic matter and a nitrogen-containing precursor; the dispersed phase is obtained by activating alloy particles with alkali liquor and then oxidizing the alloy particles. The catalyst has the advantages of high activity, good strength, high utilization rate of active metal and the like. And 0.1-5ppm of carbon monoxide in the inlet mixed gas can be removed to be less than 30ppb.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a composite copper oxide catalyst, a preparation method and an application. Background technique [0002] In various industrial fields, the existence of trace amounts of CO is often harmful to the reaction system, or harmful to the safety of the system, and needs to be removed as an impurity. In the electronics industry and the polyolefin industry in the petrochemical field, it is required that the content of carbon monoxide and oxygen in the material stream is even in the ppb level. [0003] Gold, palladium and platinum are the noble metal catalysts used for trace removal of carbon monoxide. In particular, the gold catalyst has good low-temperature activity and can react with carbon monoxide at low temperature or even room temperature. For example, U.S. Patent No. 5,662,873 discloses a kind of H in the inert gas 2 and CO with O 2 The reaction takes place to convert H 2 O ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J37/08B01J25/00B01J35/10B01D53/62B01D53/86
CPCB01J27/24B01J37/082B01J37/084B01J25/00B01D53/62B01D53/864B01D2257/502B01J35/394B01J35/23B01J35/64
Inventor 吴佳佳鲁树亮郝雪松陈勇徐洋
Owner CHINA PETROLEUM & CHEM CORP
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