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Protection method and device for gas catalyst at room temperature

A gas catalyst and protection device technology, applied in chemical instruments and methods, gas treatment, separation methods, etc., can solve the problems of catalyst reduction, loss of catalytic ability, blockage, etc., and achieve the effect of avoiding adsorption and accumulation

Inactive Publication Date: 2019-03-29
ZHEJIANG SHUREN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at room temperature, microorganisms are easy to adsorb and accumulate on the surface of the catalyst and its pores, and continue to grow, thereby blocking the pores of the catalyst, or even embedding the entire surface of the catalyst, reducing or even losing its catalytic ability.

Method used

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  • Protection method and device for gas catalyst at room temperature

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Embodiment Construction

[0013] In the present invention, an adsorbent device is arranged at the front end of the catalyst device, and the gas is purified by the adsorbent before entering the catalyst, so as to realize the protection of the catalyst. like figure 1 As shown, a protection device for gas catalysts at room temperature, including an air pump 2 for transporting gas and air to be treated; an adsorbent barrel 3 for installing adsorbent; installed on the adsorbent barrel, used for heating the adsorbent an electric heater 4; an adsorbent 5 with a porous structure for adsorbing microorganisms, dust, etc.; a hollow connecting pipe 6 for connecting various components; a catalyst barrel 7 for containing a catalyst; Catalyst 8 for catalytic degradation is required in the treatment gas; and exhaust pipe 9 for venting.

[0014] The exhaust gas generated by the exhaust gas generator 1 contains microorganisms, dust and other components harmful to the catalyst. The exhaust gas is transported to the adso...

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Abstract

The invention discloses a protection method and device for a gas catalyst at room temperature. Mainly an adsorbent is employed to pre-adsorb to-be-catalyzed gas, the adsorbed substance at least includes microorganisms in the to-be-treated gas, thus preventing the adsorption and accumulating growth of microorganisms on the catalyst surface and in pores from blocking the catalyst pores or even embedding the whole catalyst surface and weakening or disabling the catalytic capacity of the catalyst. At the same time, by heating the adsorbent in an aerobic environment, the microorganisms adsorbed onthe adsorbent can decompose and die out, thereby realizing regeneration of the adsorbent.

Description

technical field [0001] The invention relates to the field of catalyst protection in gas catalytic reactions, in particular to a method and device for protecting gas catalysts at room temperature. Background technique [0002] At present, researches on the protection of gas catalysts mainly focus on the protection of coke oven flue gas SCR denitrification high-temperature catalysts, such as CN200580042640 photocatalyst protection, CN201010267546 systems and methods for protecting SCR catalysts, and CN201380028995 catalyst protection devices and catalysts for internal combustion engines Protection method, CN201480009080 Removable protective coating for containing dust-free catalyst, CN201610839604 A protection method and device for coke oven flue gas SCR denitration catalyst, CN201720695412 A device for protecting medium and low temperature SCR denitration catalyst, CN201720920883 A catalyst protection device and the like. The main pollutant of high-temperature catalysts is d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/00B01D53/04
CPCB01D46/0036B01D53/04B01D2253/108B01D2253/104B01D2253/102B01D2259/40096B01D46/785
Inventor 许晓路王智敏孙淇王启国许锦超许大庆
Owner ZHEJIANG SHUREN UNIV
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