Title:
HEAT STORAGE TYPE WASTE GAS TREATING DEVICE
Document Type and Number:
Japanese Patent JP3913934
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To surely purify VOC and NOx contained in a low temp. waste gas introduced in the large quantity at high heat efficiency and to reduce running cost.
SOLUTION: A catalyst layer 6 composed of a NOx occlusion reducing type catalyst is formed in a waste gas treating chamber 3 to face a regenerator 4 of a regenerative heat exchanger 5 communicated therewith. The regenerator 4 is divided into an air feed region 4in, through which an untreated waste gas to be introduced into the waste gas treating chamber 3 is passed, a waste gas region 4out, through which the treated waste gas discharged from the waste gas treating chamber 3 is passed and an a waste gas interrupting region 4s, where the passing of the untreated waste gas and a treated waste gas is interrupted and a reducing gas is supplied, and the VOC and NOx are purified with the catalyst layer 6 in the waste gas treating chamber 3 by continuously introducing the waste gas while switching successively each region (4in, 4out, 4s).
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Inventors:
Murachi Mikio
Akihiro Nomura
Akihiro Nomura
Application Number:
JP14481899A
Publication Date:
May 09, 2007
Filing Date:
May 25, 1999
Export Citation:
Assignee:
Trinity Industrial Co., Ltd.
International Classes:
B01D53/34; B01D53/86; B01D53/44; B01D53/56; B01D53/74; B01D53/81; B01D53/94; F23G7/06; F23G7/07; (IPC1-7): B01D53/87; B01D53/34; B01D53/44; B01D53/74; B01D53/56; B01D53/81; B01D53/86; B01D53/94; F23G7/06
Domestic Patent References:
| JP54051969A | ||||
| JP10128114A | ||||
| JP5253445A | ||||
| JP200088230A | ||||
| JP2000111026A | ||||
| JP9217918A | ||||
| JP7305824A |
Attorney, Agent or Firm:
Katsufumi Sawano
Akira Kawajiri
Akira Kawajiri