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A kind of metal catalyst regeneration method

A metal catalyst, catalyst technology, applied in the direction of catalyst regeneration/reactivation, metal/metal oxide/metal hydroxide catalyst, chemical instruments and methods, etc., can solve problems such as environmental pollution, achieve catalytic performance recovery, extended use effect of life

Active Publication Date: 2019-09-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, once the catalyst is deactivated in the industry, the catalyst manufacturer will replace the catalyst and discard the deactivated catalyst. Improper disposal of these solid wastes will also cause pollution to the environment (soil, water, etc.)

Method used

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  • A kind of metal catalyst regeneration method
  • A kind of metal catalyst regeneration method

Examples

Experimental program
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Embodiment

[0022] Put the industrially deactivated copper-zinc-aluminum methanol synthesis catalyst (φ5mm×5mm) D in the vibration decarburizer, and adjust the vibration frequency to 100min -1 ; After vibrating for 30min, move the catalyst to the vibrating screen and adjust the vibrating frequency to 80min -1 ; After vibrating for 20 minutes, move the catalyst to the catalyst regeneration chamber filled with water of the metal dispersion device, adjust the temperature in the catalyst regeneration chamber to 50°C, and pass 100 mL / min of ammonia gas into the metal dispersion device from the ammonia gas inlet ; After 20 minutes, turn off the ammonia gas, pass 200mL / min of air into the metal dispersion device from the auxiliary gas inlet, and at the same time adjust the temperature in the catalyst regeneration chamber to 80°C, start the pump, and circulate the residual night in the cavity through the residual liquid The pipe is transported to the liquid sprayer and sprayed onto the catalyst i...

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Abstract

The invention belongs to the technical field of preparation of catalysts, and particularly relates to a metal catalyst regenerating method. A metal catalyst is regenerated by a device which successively comprises a vibratory carbon remover (1), a vibrating screen (2), a metal redispersion device (3) and a heating and roasting device (4) from front to back according to the process. By the method, the metal catalyst which is inactivated industrially can be regenerated, and therefore, the service life of the catalyst can be prolonged.

Description

technical field [0001] The patented technology of the invention belongs to the technical field of catalyst preparation, and specifically relates to a metal catalyst regeneration method. Background technique [0002] Catalysis is one of the most important disciplines in chemistry, and almost all chemical reactions are catalytic reactions. In industry, more than 90% of chemical industry production is inseparable from catalysts. The industry uses about several million tons of catalysts every year. These catalysts are worth tens of millions, and these catalysts can produce chemical products that are worth hundreds to thousands of times. Catalyst deactivation is a problem faced by almost all industrial catalysts during use. In general, once the catalyst is deactivated in the industry, the catalyst manufacturer will replace the catalyst, and the deactivated catalyst will be discarded. Improper disposal of these solid wastes will also cause pollution to the environment (soil, wat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J38/02B01J38/08B01J38/66B01J23/94B01J23/72
Inventor 朱立忠于杨邱爱玲
Owner CHINA PETROLEUM & CHEM CORP