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Digestion method and digestion device for quickly digesting carbon monoxide

A carbon monoxide and digestion device technology, applied in chemical instruments and methods, separation methods, separation of dispersed particles, etc., can solve problems such as slow purification speed

Active Publication Date: 2019-11-01
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This purification means uses less catalyst and has stable purification performance, but the purification speed of this purification method is slow and requires negative pressure ventilation or positive pressure ventilation, so it is not suitable for rapid digestion of carbon monoxide in large spaces in emergencies such as fires and explosions.

Method used

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  • Digestion method and digestion device for quickly digesting carbon monoxide
  • Digestion method and digestion device for quickly digesting carbon monoxide
  • Digestion method and digestion device for quickly digesting carbon monoxide

Examples

Experimental program
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Effect test

Embodiment 1

[0040]Example 1: According to the method of rapid digestion of carbon monoxide, a pressure storage type carbon monoxide digestion device is proposed, using manganese and copper composite metal oxide as a catalyst. Before loading the catalyst, grind the catalyst into a powder of more than 100 mesh, and activate it for 1 hour at 200°C in a dry air flow environment; then fill the activated catalyst powder into the storage tank 7, and repeatedly pump it through the vacuum / gas filling port 6 Vacuum and dry air three times each, and finally fill with dry air until the air pressure in the tank reaches 1.5MPa; when using a carbon monoxide digestion device, pull out the limit pin 3 and hold the support ring 2 with one hand. Hold the nozzle 8 with one hand, and operate the pressure rod 1 with the hand holding the support rod, and the nozzle faces the space to be digested to complete the carbon monoxide digestion. The catalyst powder in the catalyst powder storage tank was taken out ever...

Embodiment 2

[0041] Example 2: Use a storage pressure carbon monoxide digestion device to digest 0.3m 3 For carbon monoxide in a sealed box (0.5m×0.6m×1m), use catalyst powder with a mass of 0.2kg and a working pressure of 1.5MPa; the concentration of carbon monoxide in the box is 5000ppm, and the ambient temperature is 20°C; use a storage-type carbon monoxide digestion device The catalyst powder is sprayed into the box through the reserved opening (can be sealed); the carbon monoxide concentration change is monitored in real time through the carbon monoxide sensor installed in the box; after the catalyst powder is sprayed, the carbon monoxide concentration in the box continues to drop, and drops to 1700ppm within 15 minutes.

Embodiment 3

[0042] Example 3: Using a pressure storage type carbon monoxide digestion device to apply to 17.7m 3 Cement pipe gallery (10m in length, 1.5m in diameter), both ends of the pipe gallery are sealed by revolving doors; carbon monoxide is generated by smoldering 7kg of charcoal, the mass of catalyst powder used is 0.8kg, and the working pressure is 1.5MPa; it is installed in the middle of the pipe gallery The reserved opening can be sealed, and the catalyst powder is sprayed into the pipe gallery left and right; since the charcoal is burned, gas sampling is carried out at two preset positions in the pipe gallery every three minutes, and the carbon monoxide concentration is measured by a chromatograph. When no carbon monoxide digestion measures were taken, the carbon monoxide concentration in the pipe gallery continued to rise, reaching 8900ppm within 60 minutes; after using the storage-type carbon monoxide digestion device to spray catalyst powder into the box, the carbon monoxide...

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Abstract

The invention discloses a digestion method and a digestion device for quickly digesting carbon monoxide, and belongs to the technical field of toxic gas purification. The method comprises the following steps: spraying solid catalyst powder into a carbon monoxide enrichment space so as to oxidize carbon monoxide into carbon dioxide and realize rapid digestion of carbon monoxide by utilizing the mechanical motion or Brownian motion of the catalyst powder and the principle of catalytically oxidizing carbon monoxide by using a catalyst. The device comprises a catalyst powder storage tank, a spraying device, a pressure release valve, a vacuumizing / inflating port and a siphon. The upper end of the catalyst powder storage tank is a tank opening; a material spraying device is arranged on the tankopening; the siphon is positioned in a tank body of the catalyst powder storage tank; the upper end of the siphon is connected with the spraying device, and the lower end extends to the bottom of thecatalyst powder storage tank; and the upper part of the tank body of the catalyst powder storage tank is connected with a pressure release valve and a vacuumizing / inflating port. The method and the device have the advantages of being high in carbon monoxide digestion speed, low in cost and suitable for fire and explosion sites, thereby preventing carbon monoxide from hurting people in distress.

Description

technical field [0001] The invention belongs to the technical field of toxic gas purification, in particular to a digestion method and a digestion device for rapid digestion of carbon monoxide. Background technique [0002] Activities such as garbage decomposition and incomplete combustion of fuel will produce a large amount of carbon monoxide gas, especially in fire and explosion accidents, which in most cases will lead to a sharp increase in the concentration of carbon monoxide at the accident site. Carbon monoxide is a colorless, odorless and highly toxic gas, which can easily combine with hemoglobin in human blood to form carboxyhemoglobin, leading to suffocation and death, seriously threatening the lives of personnel on site. According to reports, 85% of the deaths in fire and explosion accidents are caused by the suffocation of carbon monoxide. Therefore, in the fire and explosion accident scene, the efficient and rapid digestion of carbon monoxide gas is extremely im...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/62
CPCB01D53/864Y02A50/20
Inventor 李佳陈小雨周福宝
Owner CHINA UNIV OF MINING & TECH
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