Title:
TREATMENT OF WASTE GAS
Document Type and Number:
Japanese Patent JPS5631427
Kind Code:
A
Abstract:
PURPOSE: To cheaply remove dust and sulfur oxide by a method wherein SO2 in the waste gas is oxidized to SO3 in the presence of catalyst and SO3 is reacted with dust component to be fixed as sulfate.
CONSTITUTION: The waste gas is guided boiler 1 to an oxidation column 2 to convert SO2 to SO3. SO3 is absorbed by the dust where if metal component is insufficient, SOX absorbing agent such as CaO and MgO is added, and then the waste gas is introduced into a dust collector 4. This causes SO3 to react with the dust component or with added metal component and be fixed as stable sulfate, which is collected. In this manner, sulfur oxide in the waste gas is treated cheaply, simply, and efficiently.
Inventors:
MATSUDA SHINPEI
KATOU AKIRA
MORI TOSHIKATSU
KUMAGAI TERUO
HISHINUMA TAKAO
AKIMOTO HIDETOSHI
NAKASHIMA FUMITO
KATOU AKIRA
MORI TOSHIKATSU
KUMAGAI TERUO
HISHINUMA TAKAO
AKIMOTO HIDETOSHI
NAKASHIMA FUMITO
Application Number:
JP10503279A
Publication Date:
March 30, 1981
Filing Date:
August 20, 1979
Export Citation:
Assignee:
BABCOCK HITACHI KK
HITACHI LTD
HITACHI LTD
International Classes:
B01D53/50; B01D53/34; B01D53/81; B01D53/86; (IPC1-7): B01D53/34; B01D53/36