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1. WO2001056684 - A METHOD FOR TREATMENT OF FLUE GAS CLEANING PRODUCTS

Publication Number WO/2001/056684
Publication Date 09.08.2001
International Application No. PCT/DK2001/000078
International Filing Date 02.02.2001
Chapter 2 Demand Filed 21.07.2001
IPC
B01D 53/64 2006.1
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 53/68 2006.1
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
68Halogens or halogen compounds
B01D 53/73 2006.1
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
73After-treatment of removed components
CPC
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
B01D 53/68
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
68Halogens or halogen compounds
B01D 53/73
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
73After-treatment of removed components
Applicants
  • WATECH A/S [DK]/[DK] (AllExceptUS)
  • RASMUSSEN, Erik [DK]/[DK] (UsOnly)
Inventors
  • RASMUSSEN, Erik
Agents
  • HOFMAN-BANG ZACCO A/S
Priority Data
PA 2000 0018504.02.2000DK
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) A METHOD FOR TREATMENT OF FLUE GAS CLEANING PRODUCTS
(FR) PROCEDE DE TRAITEMENT DE PRODUITS DE NETTOYAGE DE GAZ DE COMBUSTION
Abstract
(EN) The invention relates to a method of treating a halogen containing solid or semi solid waste material from a flue gas cleaning process, wherein the amount of alkaline compounds is sufficient to provide a suspension of the waste material in water with a pH value of at least 10, said method comprising the steps of a) preparing an aqueous suspension of the solid or semi solid waste material, said suspension having a pH value of at least 10, b) separating the solid and the liquid material from each other to obtain an aqueous solution of waste material and a solid waste material, and collecting the solid waste material. The procedure is repeated one or more times, and optionally the resulting solid waste material is dried.
(FR) L'invention concerne un procédé de traitement de déchets solides ou semi-solides à base d'halogène provenant d'un processus de nettoyage de gaz de combustion. La quantité de composants alcalins est suffisante pour fournir une suspension aqueuse de déchets ayant un pH au moins égal à 10. Le procédé comprend les étapes suivantes: a) préparation d'une suspension aqueuse de déchets solides ou semi-solides, avec un pH au moins égal à 10, b) séparation solide-liquide pour donner une solution aqueuse de déchets et de déchets solides, et récupération des déchets solides. On répète la procédure une ou plusieurs fois, éventuellement avec séchage des déchets solides résultants.
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