ES472724A1 - Un procedimiento para separar dioxido de azufre y oxidos de nitrogeno de gases - Google Patents
Un procedimiento para separar dioxido de azufre y oxidos de nitrogeno de gasesInfo
- Publication number
- ES472724A1 ES472724A1 ES472724A ES472724A ES472724A1 ES 472724 A1 ES472724 A1 ES 472724A1 ES 472724 A ES472724 A ES 472724A ES 472724 A ES472724 A ES 472724A ES 472724 A1 ES472724 A1 ES 472724A1
- Authority
- ES
- Spain
- Prior art keywords
- formation
- scrubbing
- sulfur
- gases
- fes2
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000007789 gas Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000005201 scrubbing Methods 0.000 abstract 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 abstract 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 abstract 1
- 229910052960 marcasite Inorganic materials 0.000 abstract 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 abstract 1
- 229910052683 pyrite Inorganic materials 0.000 abstract 1
- 239000011593 sulfur 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
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/24—Nitric oxide (NO)
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
- Catalysts (AREA)
Abstract
Un procedimiento para separar dióxido de azufre y óxidos de nitrógeno de gases, que comprende: a) depurar dichos gases en un depurador con sulfuro de hierro en presencia de H2O, a una temperatura de la ambiente a 100ºC y un pH de al menos 5,5, para producir FeS2 y FeSO4; b) eliminar dichos FeS2 y FeSO4 y calentar en una atmósfera reductora y a una temperatura de 650ºC a 900ºC para regenerar FeS y formar azufre; c) recircular dicho FeS regenerado a dicho depurador para depurar más gases que contienen SO2 Y NOx.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/826,962 US4130628A (en) | 1977-08-22 | 1977-08-22 | Process for removing SO2 and NOx from gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES472724A1 true ES472724A1 (es) | 1979-02-16 |
Family
ID=25247958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES472724A Expired ES472724A1 (es) | 1977-08-22 | 1978-08-21 | Un procedimiento para separar dioxido de azufre y oxidos de nitrogeno de gases |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4130628A (es) |
| JP (1) | JPS558878A (es) |
| AU (1) | AU3887378A (es) |
| BR (1) | BR7805406A (es) |
| CA (1) | CA1112848A (es) |
| DE (1) | DE2836466A1 (es) |
| ES (1) | ES472724A1 (es) |
| FR (1) | FR2400943A1 (es) |
| GB (1) | GB2003126B (es) |
| IL (1) | IL55386A0 (es) |
| IT (1) | IT1106122B (es) |
| NL (1) | NL7808666A (es) |
| SE (1) | SE7808811L (es) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH626479A5 (es) * | 1979-07-05 | 1981-11-13 | Suisse Horlogerie | |
| US4418044A (en) * | 1982-01-15 | 1983-11-29 | Conoco Inc. | Nitric oxide and sulfur oxide absorption by scrubbing with Fe++ /S.sub. O3- |
| US4444736A (en) * | 1982-06-28 | 1984-04-24 | Pittsburgh Environmental Systems Incorporated | Process for removing SO2 and NOx from gases |
| SE9304082L (sv) * | 1993-12-08 | 1995-06-09 | Lkab | Förfarande för rening av rökgaser |
| US5695727A (en) * | 1996-03-05 | 1997-12-09 | Dravo Lime Company | Process for removing sulfur dioxide and nitrogen oxides from a hot gaseous stream with ferrous chelate regeneration |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1062120A (en) * | 1911-07-26 | 1913-05-20 | Thiogen Company | Process of obtaining sulfur from smelter-gases. |
| US1976704A (en) * | 1932-07-16 | 1934-10-09 | United Gas Improvement Co | Gas purification |
| US3695828A (en) * | 1970-04-14 | 1972-10-03 | Perm Polt I | Method of purification of exhaust gases from nitric oxides |
| US3784680A (en) * | 1971-12-01 | 1974-01-08 | Basic Inc | Cyclical process for recovery of elemental sulfur from waste gases |
| US4008169A (en) * | 1973-10-05 | 1977-02-15 | Mcgauley Patrick John | Preparation of iron oxide sorbent for sulfur oxides |
| US3920421A (en) * | 1974-01-15 | 1975-11-18 | Chemsoil Corp | Removal of oxides of nitrogen from gas streams which also contain sulfur dioxide |
-
1977
- 1977-08-22 US US05/826,962 patent/US4130628A/en not_active Expired - Lifetime
-
1978
- 1978-08-14 AU AU38873/78A patent/AU3887378A/en active Pending
- 1978-08-18 IL IL7855386A patent/IL55386A0/xx unknown
- 1978-08-21 FR FR7824298A patent/FR2400943A1/fr not_active Withdrawn
- 1978-08-21 ES ES472724A patent/ES472724A1/es not_active Expired
- 1978-08-21 GB GB7834049A patent/GB2003126B/en not_active Expired
- 1978-08-21 DE DE19782836466 patent/DE2836466A1/de not_active Withdrawn
- 1978-08-21 CA CA309,716A patent/CA1112848A/en not_active Expired
- 1978-08-21 SE SE7808811A patent/SE7808811L/xx unknown
- 1978-08-21 IT IT50802/78A patent/IT1106122B/it active
- 1978-08-22 BR BR7805406A patent/BR7805406A/pt unknown
- 1978-08-22 JP JP10149878A patent/JPS558878A/ja active Granted
- 1978-08-22 NL NL7808666A patent/NL7808666A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| SE7808811L (sv) | 1979-02-23 |
| JPS5654168B2 (es) | 1981-12-24 |
| IT1106122B (it) | 1985-11-11 |
| NL7808666A (nl) | 1979-02-26 |
| DE2836466A1 (de) | 1979-03-01 |
| CA1112848A (en) | 1981-11-24 |
| AU3887378A (en) | 1980-02-21 |
| IT7850802A0 (it) | 1978-08-21 |
| US4130628A (en) | 1978-12-19 |
| IL55386A0 (en) | 1978-10-31 |
| JPS558878A (en) | 1980-01-22 |
| GB2003126A (en) | 1979-03-07 |
| BR7805406A (pt) | 1979-05-02 |
| GB2003126B (en) | 1982-05-26 |
| FR2400943A1 (fr) | 1979-03-23 |
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