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1. WO2009050323 - REMOVAL OF AMMONIA FROM FLUIDS

Publication Number WO/2009/050323
Publication Date 23.04.2009
International Application No. PCT/FI2007/000253
International Filing Date 19.10.2007
IPC
B01D 53/58 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
54Nitrogen compounds
58Ammonia
C01B 21/26 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
21Nitrogen; Compounds thereof
20Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
24Nitric oxide (NO)
26Preparation by catalytic oxidation of ammonia
C01B 21/28 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
21Nitrogen; Compounds thereof
20Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
24Nitric oxide (NO)
26Preparation by catalytic oxidation of ammonia
28Apparatus
CPC
B01D 2255/1021
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
10Noble metals or compounds thereof
102Platinum group metals
1021Platinum
B01D 2255/1023
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
10Noble metals or compounds thereof
102Platinum group metals
1023Palladium
B01D 2255/1025
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
10Noble metals or compounds thereof
102Platinum group metals
1025Rhodium
B01D 2255/1026
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
10Noble metals or compounds thereof
102Platinum group metals
1026Ruthenium
B01D 2255/1028
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
10Noble metals or compounds thereof
102Platinum group metals
1028Iridium
B01D 2255/104
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2255Catalysts
10Noble metals or compounds thereof
104Silver
Applicants
  • ECOCAT OY [FI]/[FI] (AllExceptUS)
  • MAUNULA, Teuvo [FI]/[FI] (UsOnly)
  • HÄRKÖNEN, Matti [FI]/[FI] (UsOnly)
Inventors
  • MAUNULA, Teuvo
  • HÄRKÖNEN, Matti
Agents
  • BERGGREN OY AB
Priority Data
Publication Language English (EN)
Filing Language Finnish (FI)
Designated States
Title
(EN) REMOVAL OF AMMONIA FROM FLUIDS
(FR) ELIMINATION D'AMMONIAC À PARTIR DE FLUIDES
Abstract
(EN)
The object of the invention is a method and equipment for removing ammonia from effluent, flue or waste fluids that comprise oxygen. The method comprises at least the following stages: Part of the fluid (1) is conveyed to a decomposition/oxidation unit (2) and part of the fluid (1) is conveyed to a by-pass unit (3); part of the fluid (1) comprising ammonia is oxidized in the decomposition/oxidation unit (2) of ammonia; the fluid (1 H) that was oxidized in the decomposition/oxidation unit (2) and the fluid (1) that was conveyed to the by-pass unit are mixed in a mixing unit (4) to form a fluid mixture (1 S), and the fluid mixture (1 S) is conveyed to a selective reduction unit (5).
(FR)
L'invention a pour objet un procédé et un appareillage pour éliminer l'ammoniac à partir d'un effluent, de fluides d'évacuation ou résiduaires qui comprennent de l'oxygène. Le procédé comprend au moins les étapes suivantes : une partie du fluide (1) est transportée vers une unité de décomposition/oxydation (2) et une partie du fluide (1) est transportée vers une unité de dérivation (3); une partie du fluide (1) comprenant de l'ammoniac est oxydée dans l'unité de décomposition/oxydation (2) de l'ammoniac; le fluide (1 H) qui a été oxydé dans l'unité de décomposition/oxydation (2) et le fluide (1) qui a été transporté vers l'unité de dérivation sont mélangés dans une unité de mélange (4) pour former un mélange de fluides (1 S) et le mélange de fluides (1 S) est transporté vers une unité de réduction sélective (5).
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