CARBONACEOUS CATALYST FOR FLUE GAS DESULFURIZATION, PROCESS FOR PRODUCING THE SAME AND USE THEREOF FOR REMOVAL OF MERCURY FROM EXHAUST GAS

Title:

CARBONACEOUS CATALYST FOR FLUE GAS DESULFURIZATION, PROCESS FOR PRODUCING THE SAME AND USE THEREOF FOR REMOVAL OF MERCURY FROM EXHAUST GAS

Document Type and Number:

WIPO Patent Application WO/2009/116183

Kind Code:

A1

Abstract:

A carbonaceous catalyst for flue gas desulfurization that when brought into contact with an exhaust gas containing at least sulfur dioxide, oxygen and steam, causes the sulfur dioxide to react with the oxygen and steam into sulfuric acid, the sulfuric acid recovered. The carbonaceous catalyst on its surface is provided with iodine, bromine or a compound thereof by impregnation, ion exchange or bearing and is treated for water repellency. The carbonaceous catalyst can also be used as a mercury adsorbent for flue gas treatment capable of adsorption removal of metallic mercury from an exhaust gas containing metallic mercury, sulfur dioxide, oxygen and moisture.

Inventors:

KAWAMURA KAZUSHIGE (JP)
TAKEDA DAI (JP)
AWAI EIJI (JP)

Application Number:

PCT/JP2008/060631

Publication Date:

September 24, 2009

Filing Date:

June 04, 2008

Export Citation:

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Assignee:

CHIYODA CORP (JP)
KAWAMURA KAZUSHIGE (JP)
TAKEDA DAI (JP)
AWAI EIJI (JP)

International Classes:

B01J27/08; B01D53/86; B01J21/18; B01J33/00; B01J37/22

Foreign References:

JP2005246252A	2005-09-15
JPH11290688A	1999-10-26
JP2005288380A	2005-10-20
JP2002301335A	2002-10-15
JPH11347362A	1999-12-21
JPS4953590A	1974-05-24
JP2000024461A	2000-01-25
JP2000325746A	2000-11-28
JP2004313833A	2004-11-11
JP2005288380A	2005-10-20
JP2004066229A	2004-03-04
JPH10216476A	1998-08-18
JP2004313833A	2004-11-11
JP2001162135A	2001-06-19
JPH09308817A	1997-12-02
JPS4953590A	1974-05-24
JPH0353591B2	1991-08-15

Other References: