Ozone oxidative decomposition treatment method for vocs and/or gaseous inorganic reducing compounds in gas

A technology for ozone oxidation and decomposition treatment, which is applied in gas treatment, inorganic chemistry, separation methods, etc., and can solve the problems of slow ozone oxidation reaction, unrealized practical application, and complicated treatment of unreacted ozone

Active Publication Date: 2018-06-08
FUTAMURA CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the slow reaction of ozone oxidation to low-concentration VOC, the complicated treatment of unreacted ozone, and the high cost of producing ozone used as an oxidizing agent, it has not yet been put into practical use.

Method used

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  • Ozone oxidative decomposition treatment method for vocs and/or gaseous inorganic reducing compounds in gas
  • Ozone oxidative decomposition treatment method for vocs and/or gaseous inorganic reducing compounds in gas
  • Ozone oxidative decomposition treatment method for vocs and/or gaseous inorganic reducing compounds in gas

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Embodiment

[0028] Hereinafter, examples and comparative examples are given and the present invention will be described in more detail, but the present invention is not limited to the examples at all.

[0029] (processing equipment and processing conditions)

[0030] As VOC, exhaust gas containing 25 ppm, 2.5 ppm, and 0.25 ppm of MEK was used, and supplied to the packed tower 3 through the flow path 2 . Furthermore, at this time, a desired amount of ozone gas was injected into the flow path 2 and mixed with the exhaust gas, and oxidation decomposition treatment by ozone was performed in the packed tower. As the base material of the packing material to be filled in the packed tower 3, a material having a corrugated cardboard structure made of silica zeolite which is a porous body of the above-mentioned form was used. As silicalite, use SiO 2 / Al 2 o 3 Ultrastable Y zeolite (USY) with a ratio of 100.

[0031] In addition, for the transition metal oxide-containing fine particle powder s...

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Abstract

An ozone oxidative decomposition treatment method for VOCs and/or gas phase inorganic reducing compounds in gas is provided which, being a method that uses a high silica adsorbent to perform oxidativedecomposition treatment of VOCs, etc., with ozone, further improves efficiency of oxidative decomposition reaction with ozone, can perform efficient decomposition treatment even of substances at lowconcentrations such as VOCs and malodorous substances in a high air-flow discharge gas, and which can also reduce the amount of ozone used. When adding and mixing an ozone gas with a gas containing VOCs, then contacting the mixture with a high silica adsorbent, which is a filled porous body, and performing decomposition treatment on the VOCs by ozone oxidation, the aforementioned high-silica adsorbent is the base material in the fill material, and as the base material, a porous substance is used which supports fine particulate powder of a transition metal-containing oxide having a BET specificratio surface area of 80m<2> or greater.

Description

technical field [0001] The invention relates to a treatment method for oxidizing and decomposing VOC and / or gas-phase inorganic reducing compounds in gas by using ozone. In more detail, it relates to: in the treatment of volatile organic compounds (VOC) whose discharge regulations have been strengthened by the Air Pollution Prevention Act; in the treatment of malodorous substances whose discharge regulations have been strengthened by the Bad Odor Prevention Act; When removing various components mixed in the gas such as ethylene, aldehyde, terpene, etc. in the storage room of crops that are required for high temperature, when they are oxidatively decomposed by ozone, the oxidation of ozone and VOC is significantly promoted It is a method of efficiently performing ozonation oxidation and decomposition treatment on VOC and malodorous components in the gas. Background technique [0002] For example, for the treatment of exhaust gas containing VOC (volatile alcohols, ketones, es...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/44B01D53/38B01J20/06B01J20/28B01J20/30
CPCB01J20/06B01J20/28B01J20/30B01D53/44B01D2253/106B01D2253/108B01D53/52B01D53/58B01D53/62B01D53/72B01D53/82B01D2251/104B01D2253/1124B01D2253/306B01D2257/304B01D2257/306B01D2257/406B01D2257/502B01D2257/708B01J20/103B01J20/28059Y02A50/20B01D53/04B01D53/38B01D2253/25B01D2257/40
Inventor 泉顺深堀香织川上徹西尾章
Owner FUTAMURA CHEM
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