IT1261369B - METAL MERCURY ABSORPTION PROCESS FROM EXHAUST GASES IN LARGE PLANTS - Google Patents
METAL MERCURY ABSORPTION PROCESS FROM EXHAUST GASES IN LARGE PLANTSInfo
- Publication number
- IT1261369B IT1261369B ITTO930924A ITTO930924A IT1261369B IT 1261369 B IT1261369 B IT 1261369B IT TO930924 A ITTO930924 A IT TO930924A IT TO930924 A ITTO930924 A IT TO930924A IT 1261369 B IT1261369 B IT 1261369B
- Authority
- IT
- Italy
- Prior art keywords
- exhaust gases
- large plants
- absorption process
- metal mercury
- mercury absorption
- Prior art date
Links
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title abstract 3
- 238000010521 absorption reaction Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000007789 gas Substances 0.000 title 1
- 229910052753 mercury Inorganic materials 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 title 1
- 239000002184 metal Substances 0.000 title 1
- 229940008718 metallic mercury Drugs 0.000 abstract 2
- 239000007800 oxidant agent Substances 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
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
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/14—Packed scrubbers
-
- 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
- B01D53/64—Heavy metals or compounds thereof, e.g. mercury
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
La presente invenzione concerne un procedimento per l'assorbimento di mercurio metallico da gas di scarico in grandi impianti per mezzo di una soluzione acquosa di lavaggio di un agente d'ossidazione, caratterizzato dal fatto che mercurio metallico con l'agente d'ossidazione forma nella soluzione di lavaggio un sistema Redox con un potenziale Redox da 700 mV a 1300 mV, preferibilmente 800 a 1200 mV.The present invention relates to a process for the absorption of metallic mercury from exhaust gas in large plants by means of an aqueous solution of washing of an oxidizing agent, characterized in that metallic mercury with the oxidizing agent forms in the washing solution a Redox system with a Redox potential from 700 mV to 1300 mV, preferably 800 to 1200 mV.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4241726A DE4241726C1 (en) | 1992-12-10 | 1992-12-10 | Metallic mercury@ absorption from waste gas on large scale - by scrubbing with aq oxidant soln forming system with specified redox potential after removing mercuric ions and pref acidic cpds |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO930924A0 ITTO930924A0 (en) | 1993-12-03 |
ITTO930924A1 ITTO930924A1 (en) | 1995-06-03 |
IT1261369B true IT1261369B (en) | 1996-05-20 |
Family
ID=6474958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITTO930924A IT1261369B (en) | 1992-12-10 | 1993-12-03 | METAL MERCURY ABSORPTION PROCESS FROM EXHAUST GASES IN LARGE PLANTS |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT400113B (en) |
DE (1) | DE4241726C1 (en) |
IT (1) | IT1261369B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4315138C1 (en) * | 1993-05-07 | 1994-07-21 | Thyssen Industrie | Mercury removed from incinerated sludge waste gases by washing first with alkaline solution and then with aqueous acid solution |
ITMI20062524A1 (en) * | 2006-12-28 | 2008-06-29 | Itea Spa | PROCESS FOR PURIFICATION OF COMBUSTION FUMES |
US8663594B2 (en) * | 2007-03-07 | 2014-03-04 | Chiyoda Corporation | Exhaust gas treating method |
CA2768184A1 (en) * | 2009-07-16 | 2011-01-20 | Babcock & Wilcox Power Generation Group Inc. | Redox method for capture of total gaseous mercury by wet fgd |
FI126178B (en) | 2014-01-28 | 2016-07-29 | Outotec Finland Oy | PROCEDURE FOR REMOVING GASFUL ELEMENTAL MERCURY SILVER FROM A GAS CURRENT |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4843257B1 (en) * | 1970-06-23 | 1973-12-18 | ||
SE396772B (en) * | 1975-09-16 | 1977-10-03 | Boliden Ab | PROCEDURE FOR EXTRACTION AND EXTRACTION OF MERCURES FROM GASES |
JPS61061620A (en) * | 1986-02-25 | 1986-03-29 | Nippon Kokan Kk | Method for removing mercury in waste gas |
-
1992
- 1992-12-10 DE DE4241726A patent/DE4241726C1/en not_active Revoked
-
1993
- 1993-09-29 AT AT0196093A patent/AT400113B/en not_active IP Right Cessation
- 1993-12-03 IT ITTO930924A patent/IT1261369B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITTO930924A1 (en) | 1995-06-03 |
ATA196093A (en) | 1995-02-15 |
DE4241726C1 (en) | 1994-03-17 |
AT400113B (en) | 1995-10-25 |
ITTO930924A0 (en) | 1993-12-03 |
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