FLUE-GAS DESULFURIZATION METHOD

PROBLEM TO BE SOLVED: To provide a flue-gas desulfurization method that is capable of efficiently removing sulfur oxides and of efficiently manufacturing a high concentrated sulfuric acid. SOLUTION: This flue-gas desulfurization method is to recover the sulfur oxides in the exhaust gas as diluted su...

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Bibliographic Details
Main Authors TAKEDA MASARU, JOKYO ITSUO, ANZAI TAKUO, KAWAMURA KAZUSHIGE
Format Patent
LanguageEnglish
Published 15.09.2005
Edition7
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide a flue-gas desulfurization method that is capable of efficiently removing sulfur oxides and of efficiently manufacturing a high concentrated sulfuric acid. SOLUTION: This flue-gas desulfurization method is to recover the sulfur oxides in the exhaust gas as diluted sulfuric acid using a catalyst and to concentrate the diluted sulfuric acid with heat of the exhaust gas. The method comprises a cooling and concentrating step A to cool and/or humidify the exhaust gas, and to concentrate the diluted sulfuric acid by contacting the exhaust gas with the diluted sulfuric acid produced in the following desulfulization step C, a humidifying and cooling step B to humidify and/or cool the exhaust gas through the cooling and concentration step A and a desulfurization step C to remove the sulfur oxide while producing the diluted sulfuric acid. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20040059701