SE9404505D0 - Method and apparatus for separating gaseous pollutants from flue gases formed during combustion in fluidized bed - Google Patents

Method and apparatus for separating gaseous pollutants from flue gases formed during combustion in fluidized bed

Info

Publication number
SE9404505D0
SE9404505D0 SE9404505A SE9404505A SE9404505D0 SE 9404505 D0 SE9404505 D0 SE 9404505D0 SE 9404505 A SE9404505 A SE 9404505A SE 9404505 A SE9404505 A SE 9404505A SE 9404505 D0 SE9404505 D0 SE 9404505D0
Authority
SE
Sweden
Prior art keywords
flue gases
gaseous pollutants
bed
pollutants
temperature range
Prior art date
Application number
SE9404505A
Other languages
Swedish (sv)
Other versions
SE9404505L (en
SE504755C2 (en
Inventor
Sune Bengtsson
Original Assignee
Flaekt Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flaekt Ab filed Critical Flaekt Ab
Priority to SE9404505A priority Critical patent/SE504755C2/en
Publication of SE9404505D0 publication Critical patent/SE9404505D0/en
Priority to PCT/SE1995/001557 priority patent/WO1996020038A1/en
Priority to CA 2207733 priority patent/CA2207733A1/en
Priority to AU43602/96A priority patent/AU4360296A/en
Priority to EP95942354A priority patent/EP0799084A1/en
Priority to PL95320879A priority patent/PL320879A1/en
Priority to JP8520405A priority patent/JPH10511599A/en
Publication of SE9404505L publication Critical patent/SE9404505L/en
Publication of SE504755C2 publication Critical patent/SE504755C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/68—Halogens or halogen compounds
    • B01D53/685—Halogens or halogen compounds by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/508—Sulfur oxides by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81—Solid phase processes

Abstract

In a method and a device for separating gaseous pollutants, such as hydrogen chloride and sulphur dioxide, from flue gases generated upon the combustion of fossil fuel, such as coal, in an atmospheric or pressurised fluidised bed (1) in the temperature range of 700-900 DEG C, an absorbent containing burnt lime and/or substances that, in this temperature range are converted to burnt lime, is added in excess to the bed in order to react with these gaseous pollutants in the form of sulphur dioxide and convert them to separable, particulate pollutants. The particles entrained by the flue gases from the bed are separated from these gases in a first dust separator (5). A partial amount of the particles separated from the flue gases and containing burnt lime is hereby not recycled to the bed (1) but instead supplied to a contact reactor (8), in which they are mixed with the flue gases in the temperature range of 90-200 DEG C, preferably 120-150 DEG C, in order to react with the remaining gaseous pollutants in the form of hydrogen chloride in the flue gases. Then, the resulting particulate pollutants are preferably separated in a second dust separator (9).
SE9404505A 1994-12-23 1994-12-23 Method and apparatus for separating gaseous pollutants, such as sulfur dioxide and hydrogen chloride, from flue gases formed during combustion in fluidized bed SE504755C2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9404505A SE504755C2 (en) 1994-12-23 1994-12-23 Method and apparatus for separating gaseous pollutants, such as sulfur dioxide and hydrogen chloride, from flue gases formed during combustion in fluidized bed
PCT/SE1995/001557 WO1996020038A1 (en) 1994-12-23 1995-12-21 Method and device for separating gaseous pollutants
CA 2207733 CA2207733A1 (en) 1994-12-23 1995-12-21 Method and device for separating gaseous pollutants
AU43602/96A AU4360296A (en) 1994-12-23 1995-12-21 Method and device for separating gaseous pollutants
EP95942354A EP0799084A1 (en) 1994-12-23 1995-12-21 Method and device for separating gaseous pollutants
PL95320879A PL320879A1 (en) 1994-12-23 1995-12-21 Method of and apparatus for isolating gaseous pollutants
JP8520405A JPH10511599A (en) 1994-12-23 1995-12-21 Method and apparatus for separating gaseous pollutants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9404505A SE504755C2 (en) 1994-12-23 1994-12-23 Method and apparatus for separating gaseous pollutants, such as sulfur dioxide and hydrogen chloride, from flue gases formed during combustion in fluidized bed

Publications (3)

Publication Number Publication Date
SE9404505D0 true SE9404505D0 (en) 1994-12-23
SE9404505L SE9404505L (en) 1996-06-24
SE504755C2 SE504755C2 (en) 1997-04-21

Family

ID=20396466

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9404505A SE504755C2 (en) 1994-12-23 1994-12-23 Method and apparatus for separating gaseous pollutants, such as sulfur dioxide and hydrogen chloride, from flue gases formed during combustion in fluidized bed

Country Status (7)

Country Link
EP (1) EP0799084A1 (en)
JP (1) JPH10511599A (en)
AU (1) AU4360296A (en)
CA (1) CA2207733A1 (en)
PL (1) PL320879A1 (en)
SE (1) SE504755C2 (en)
WO (1) WO1996020038A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19711529A1 (en) * 1997-03-19 1998-09-24 Sueddeutsche Kalkstickstoff Process for removing acidic pollutants from exhaust gases
ITMI20062524A1 (en) * 2006-12-28 2008-06-29 Itea Spa PROCESS FOR PURIFICATION OF COMBUSTION FUMES
CN110075701A (en) * 2018-01-26 2019-08-02 上海华芮环境工程技术有限公司 A kind of dust removal integrated flue gas purifying technique of desulphurization denitration and system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536899A1 (en) * 1985-10-16 1987-04-16 Steinmueller Gmbh L & C Dry flue gas purification downstream of a fluidised-bed combuster and apparatus for carrying out the process
SE460642B (en) * 1987-03-06 1989-11-06 Flaekt Ab PROCEDURES FOR ABSORPING GAS GAS COMPONENTS FROM FORECURATED SMOKE GASES
SE462551B (en) * 1988-03-03 1990-07-16 Flaekt Ab PROCEDURES FOR PURIFICATION OF COB GAS FORMED GAS
FI83167C (en) * 1989-07-19 1991-06-10 Tampella Oy Ab Process for the purification of flue gases and apparatus therefor

Also Published As

Publication number Publication date
SE9404505L (en) 1996-06-24
EP0799084A1 (en) 1997-10-08
AU4360296A (en) 1996-07-19
CA2207733A1 (en) 1996-07-04
SE504755C2 (en) 1997-04-21
WO1996020038A1 (en) 1996-07-04
PL320879A1 (en) 1997-11-10
JPH10511599A (en) 1998-11-10

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