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1. WO2017035003 - COMPLEXATION AND REMOVAL OF MERCURY FROM FLUE GAS DESULFURIZATION SYSTEMS

Publication Number WO/2017/035003
Publication Date 02.03.2017
International Application No. PCT/US2016/047836
International Filing Date 19.08.2016
IPC
B01D 53/64 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation 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 or aerosols
34Chemical or biological purification of waste gases
46Removing components of defined structure
64Heavy metals or compounds thereof, e.g. mercury
B01D 53/60 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation 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 or aerosols
34Chemical or biological purification of waste gases
46Removing components of defined structure
60Simultaneously removing sulfur oxides and nitrogen oxides
F23J 15/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
15Arrangements of devices for treating smoke or fumes
02of purifiers, e.g. for removing noxious material
B01D 53/90 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation 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 or aerosols
34Chemical or biological purification of waste gases
74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
86Catalytic processes
90Injecting reactants
CPC
B01D 2251/108
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2251Reactants
10Oxidants
108Halogens or halogen compounds
B01D 2251/304
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2251Reactants
30Alkali metal compounds
304of sodium
B01D 2251/404
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2251Reactants
40Alkaline earth metal or magnesium compounds
404of calcium
B01D 2251/70
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2251Reactants
70Organic acids
B01D 53/502
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation 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,
34Chemical or biological purification of waste gases
46Removing components of defined structure
48Sulfur compounds
50Sulfur oxides
501by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
502characterised by a specific solution or suspension
B01D 53/64
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation 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,
34Chemical or biological purification of waste gases
46Removing components of defined structure
64Heavy metals or compounds thereof, e.g. mercury
Applicants
  • ECOLAB USA INC. [US]/[US]
Inventors
  • DENNY, Nicholas
  • KEISER, Bruce
  • DOTZAUER, David
  • CARLSON, Wayne
Agents
  • BABYCH, Eric, D.
Priority Data
62/208,11721.08.2015US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COMPLEXATION AND REMOVAL OF MERCURY FROM FLUE GAS DESULFURIZATION SYSTEMS
(FR) COMPLEXATION ET ÉLIMINATION DE MERCURE À PARTIR DE SYSTÈMES DE DÉSULFURATION DE GAZ DE CARNEAU
Abstract
(EN)
A method for the reduction and prevention of mercury emissions into the environment from combusted fossil fuels or other off-gases with the use of peracetic acid is disclosed. The peracetic acid is used for the capture of mercury from the resulting flue gases using a flue gas desulfurization system or scrubber. The method uses peracetic acid in conjunction with a scrubber to capture mercury and lower its emission and/or re-emission with stack gases. The method allows the use of coal as a cleaner and environmentally friendlier fuel source as well as capturing mercury from other processing systems.
(FR)
L'invention concerne un procédé pour la réduction et la prévention d'émissions de mercure dans l'environnement à partir de combustibles fossiles en combustion ou d'autres dégagements gazeux avec l'utilisation d'acide peracétique. L'acide peracétique est utilisé pour la capture de mercure à partir des gaz de carneau obtenus à l'aide d'un épurateur ou système de désulfuration de gaz de carneau. Le procédé utilise l'acide peracétique conjointement avec un épurateur pour capturer le mercure et réduire son émission et/ou sa réémission avec des gaz de combustion. Le procédé permet l'utilisation de charbon comme source de combustible plus propre et plus écologique, ainsi que la capture de mercure à partir d'autres systèmes de traitement.
Also published as
NI2018-000030 I
CL2018-417
DODOP2018000050
CRCR2018-000165
Latest bibliographic data on file with the International Bureau