Title:
PROCESS AND DEVICE FOR SEMI-DRY TYPE DESULFURIZATION
Document Type and Number:
Japanese Patent JPH08953
Kind Code:
A
Abstract:
PURPOSE: To carry out efficiently a semi-dry type desulfurization of exhaust gas containing SO2 from a combustion device such as a coal-fired boiler by a simple process.
CONSTITUTION: In a humidifying kneader 38 provided with an agitator, in which water is added to powder composed of at least one kind of Ca(OH)2, CaO, CaCO3 and dolomite, or powder containing at least one kind of these components of 60wt.% or more so that the water/powder weight ratio is 0.11-0.40, and it is agitated and kneaded to form a mixture of funicular I shape, the mixture is then put into atmosphere of 40-250°C in a reaction column 48, and water is sprayed to form locally the highly wet atmosphere to bring it into contact with exhaust gas containing SO2.
Inventors:
NISHIMURA KAZUYA
KUBO YUKIO
SHIBATA TAISUKE
ITO SHIGEJI
MARUI KAZUTO
KUBO YUKIO
SHIBATA TAISUKE
ITO SHIGEJI
MARUI KAZUTO
Application Number:
JP15807494A
Publication Date:
January 09, 1996
Filing Date:
June 15, 1994
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD
International Classes:
F23J15/00; B01D53/34; B01D53/50; B01D53/81; (IPC1-7): B01D53/50; B01D53/34; B01D53/81; F23J15/00
Attorney, Agent or Firm:
Shinichi Shiode
Next Patent: NITROGEN OXIDES REMOVING DEVICE