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1. WO2011009217 - APPARATUS AND METHOD FOR REMOVING MERCURY FROM A GAS

Publication Number WO/2011/009217
Publication Date 27.01.2011
International Application No. PCT/CA2010/001162
International Filing Date 22.07.2010
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 53/14 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
14by absorption
CPC
B01D 2251/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2251Reactants
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 2251/606
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2251Reactants
60Inorganic bases or salts
606Carbonates
B01D 2257/602
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2257Components to be removed
60Heavy metals or heavy metal compounds
602Mercury or mercury compounds
B01D 2258/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2258Sources of waste gases
Applicants
  • DICKSON, Graham C. [CA]/[CA]
Inventors
  • DICKSON, Graham C.
Agents
  • TAYLOR, Euan R.
Priority Data
61/228,50324.07.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS AND METHOD FOR REMOVING MERCURY FROM A GAS
(FR) APPAREIL ET PROCÉDÉ D'ÉLIMINATION DU MERCURE D'UN GAZ
Abstract
(EN)
The present invention provides a method and apparatus for removing mercury from gases such as those discharged from roasters and other heat producing systems. In embodiments the method comprises reacting the mercury with dissolved molecular chlorine, and may also comprise reacting the mercury with mercuric chloride to yield mercurous chloride. The mercurous chloride may be removed by precipitation. There are also disclosed apparatuses for implementing the method.
(FR)
La présente invention concerne un procédé et un appareil pour éliminer le mercure de gaz tels que ceux rejetés de fours et autres systèmes produisant de la chaleur. Dans certains modes de réalisation, le procédé consiste à faire réagir le mercure avec du chlore moléculaire dissous, et peut également consister à faire réagir le mercure avec du chlorure de mercure pour donner du chlorure mercureux. Le chlorure mercureux peut être éliminé par précipitation. L'invention concerne également des appareils permettant de mettre en œuvre le procédé.
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