ZA895453B - Removal of nox from the waste gases obtained in the production of fertilizers - Google Patents
Removal of nox from the waste gases obtained in the production of fertilizersInfo
- Publication number
- ZA895453B ZA895453B ZA895453A ZA895453A ZA895453B ZA 895453 B ZA895453 B ZA 895453B ZA 895453 A ZA895453 A ZA 895453A ZA 895453 A ZA895453 A ZA 895453A ZA 895453 B ZA895453 B ZA 895453B
- Authority
- ZA
- South Africa
- Prior art keywords
- nox
- fertilizers
- removal
- production
- stage
- Prior art date
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
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
- Catalysts (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
NOx-containing exhaust gases arising in the manufacture of fertilisers by digestion of raw phosphates with nitric acid are removed by adsorption in a scrubbing fluid. For this purpose, the exhaust gases are scrubbed in a scrubbing stage with a circulated ammonium nitrate solution of which the concentration is held at values from 5 to 30 % by weight and the pH is held at values from 3 to 7 by addition of ammonia and the temperature is at most 40 DEG C. The ammonium nitrate solution laden with NOx is heated to at least 55 DEG C in a regeneration stage, cooled again to the temperature of the scrubbing stage after it has left the regeneration stage, and at least partially recycled to the latter. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3824465A DE3824465A1 (en) | 1988-07-19 | 1988-07-19 | METHOD FOR REMOVING NO (DOWN ARROW) X (DOWN ARROW) FROM THE EXHAUST GASES PRODUCED IN THE PRODUCTION OF FERTILIZERS |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA895453B true ZA895453B (en) | 1991-03-27 |
Family
ID=6359024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA895453A ZA895453B (en) | 1988-07-19 | 1989-07-18 | Removal of nox from the waste gases obtained in the production of fertilizers |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0351613B1 (en) |
CN (1) | CN1018982B (en) |
AT (1) | ATE80565T1 (en) |
DE (2) | DE3824465A1 (en) |
DZ (1) | DZ1353A1 (en) |
ES (1) | ES2034522T3 (en) |
GR (1) | GR3005953T3 (en) |
NO (1) | NO172525C (en) |
ZA (1) | ZA895453B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4027404A1 (en) * | 1990-02-26 | 1991-08-29 | Fritz Curtius | Nitric oxide oxidn. in gas stream by scrubbing with nitric acid - contg. nitrous acid by desorbing of acid cpds. into gas and replacing nitrous acid |
DE4335867A1 (en) * | 1993-10-21 | 1995-05-04 | Hans Dr Remstedt | Process for the simultaneous removal of sulphur oxides and nitrogen oxides from combustion exhaust gases in an ammonia scrubber |
DE19731505A1 (en) * | 1996-07-22 | 1998-01-29 | Basf Ag | Waste gas scrubber for cleaning gas generated in fertilizer production |
GB2315434A (en) * | 1996-07-22 | 1998-02-04 | Basf Ag | Purifying waste gas from fertiliser production |
DE19634177A1 (en) * | 1996-08-23 | 1998-02-26 | Basf Ag | Process for the common purification of the waste gases resulting from the production of mineral fertilizers by means of a washing solution |
DE102006054972A1 (en) * | 2006-11-16 | 2008-05-21 | M+W Zander Facility Engineering Ltd. | Process for the purification of exhaust gases containing nitrous gases |
DE102008062496A1 (en) * | 2008-12-16 | 2010-06-17 | Linde-Kca-Dresden Gmbh | Process for the removal of impurities from oxygen-containing gas streams |
DE102011017032A1 (en) | 2011-04-14 | 2012-10-18 | Linde Aktiengesellschaft | Process and installation for depleting nitrogen oxides from oxygen-containing gas streams |
CN103446865A (en) * | 2013-07-03 | 2013-12-18 | 四川大学 | Nitrophosphate tail gas deamination device and nitrophosphate tail gas deamination process |
WO2016180676A1 (en) * | 2015-05-08 | 2016-11-17 | Yara International Asa | Reduction of nox emissions by effluent gases from fertilizer production with ozone injection and wet scrubbing |
EP3549661A1 (en) * | 2018-04-06 | 2019-10-09 | Yara International ASA | Nox removal from gaseous effluents |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1070930A (en) * | 1974-09-30 | 1980-02-05 | Philip F. Kaupas | Pollution control process for fertilizer plant |
-
1988
- 1988-07-19 DE DE3824465A patent/DE3824465A1/en not_active Withdrawn
-
1989
- 1989-07-01 AT AT89112034T patent/ATE80565T1/en not_active IP Right Cessation
- 1989-07-01 DE DE8989112034T patent/DE58902279D1/en not_active Expired - Lifetime
- 1989-07-01 ES ES198989112034T patent/ES2034522T3/en not_active Expired - Lifetime
- 1989-07-01 EP EP89112034A patent/EP0351613B1/en not_active Expired - Lifetime
- 1989-07-13 NO NO892888A patent/NO172525C/en not_active IP Right Cessation
- 1989-07-18 ZA ZA895453A patent/ZA895453B/en unknown
- 1989-07-19 DZ DZ890120A patent/DZ1353A1/en active
- 1989-07-19 CN CN89105489A patent/CN1018982B/en not_active Expired
-
1992
- 1992-10-12 GR GR920402276T patent/GR3005953T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
DE58902279D1 (en) | 1992-10-22 |
EP0351613B1 (en) | 1992-09-16 |
GR3005953T3 (en) | 1993-06-07 |
NO172525B (en) | 1993-04-26 |
DE3824465A1 (en) | 1990-01-25 |
NO892888D0 (en) | 1989-07-13 |
ES2034522T3 (en) | 1993-04-01 |
EP0351613A3 (en) | 1990-03-28 |
NO892888L (en) | 1990-01-22 |
CN1040153A (en) | 1990-03-07 |
DZ1353A1 (en) | 2004-09-13 |
EP0351613A2 (en) | 1990-01-24 |
ATE80565T1 (en) | 1992-10-15 |
NO172525C (en) | 1993-08-11 |
CN1018982B (en) | 1992-11-11 |
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