GB1181703A - A Process for Removing Sulphur Dioxide from Waste Gases - Google Patents
A Process for Removing Sulphur Dioxide from Waste GasesInfo
- Publication number
- GB1181703A GB1181703A GB1403167A GB1403167A GB1181703A GB 1181703 A GB1181703 A GB 1181703A GB 1403167 A GB1403167 A GB 1403167A GB 1403167 A GB1403167 A GB 1403167A GB 1181703 A GB1181703 A GB 1181703A
- Authority
- GB
- United Kingdom
- Prior art keywords
- absorber
- stage
- solution
- steam mixture
- receiver
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
- C01C1/245—Preparation from compounds containing nitrogen and sulfur
- C01C1/246—Preparation from compounds containing nitrogen and sulfur from sulfur-containing ammonium compounds
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/60—Isolation of sulfur dioxide from gases
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (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)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
1,181,703. Removing SO2 from gases. J. DERKA, R. KLIMECEK and V. VEVERKA. 28 March, 1967 [31 March, 1966], No. 14031/67. Heading C1A. SO2 is removed from waste gases in 2 stages, by contacting the gases (i) with an ammonium sulphite-bisulphite solution, which is regenerated (by boiling off an SO2/steam mixture then crystallizing out (NH4)2SO4) and recycled, and (ii) with the condensate obtained by cooling the SO2/steam mixture, this condensate then being passed to the first stage. The SO2/steam mixture may be precooled (and desorbed of any NH3) by passing it in heat exchange (14) with the loaded solution from the first stage absorber (13) before regeneration, and H2O is then condensed out (at 16) by cooling to 35‹ C. The condensates from heat exchanger (14) and condenser (16) are passed in heat exchange (17) with the SO2/steam mixture before it enters 14 to desorb any SO2, then cooled to 35‹ C. (18) and passed to a receiver (22), to which NH3 is also fed. Water may be added to receiver (22) or drawn off from cooler (18) as necessary. The second stage solution circulates through receiver (22) and second stage absorber (23) where it contacts the gas from absorber (13). The loaded solution from absorber (13) is regenerated (15) by boiling at 105-110‹ C., and cooled to 35‹ C. (19 and 20) to crystallize out (NH4)2SO4 which is centrifuged (21), the liquors being mixed with the solution from 22 and recycled to absorber (13). Some NH3 may also be added to the first stage circuit, and H2SO4 may be introduced, e.g. into regenerator (15) to increase the yield of (NH4)2SO4. This H2SO4 may have been used to dry the product SO2. The numerals refer to Fig. 2 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS213766 | 1966-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1181703A true GB1181703A (en) | 1970-02-18 |
Family
ID=5357618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1403167A Expired GB1181703A (en) | 1966-03-31 | 1967-03-28 | A Process for Removing Sulphur Dioxide from Waste Gases |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1667447A1 (en) |
| GB (1) | GB1181703A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3983217A (en) * | 1973-09-26 | 1976-09-28 | Kurashiki Boseki Kabushiki Kaisha | Method for removing sulfur dioxide from waste gases |
| WO2002074700A1 (en) * | 2001-03-16 | 2002-09-26 | Bayer Aktiengesellschaft | Nitrate reduction using so¿2? |
-
1967
- 1967-03-01 DE DE19671667447 patent/DE1667447A1/en active Pending
- 1967-03-28 GB GB1403167A patent/GB1181703A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3983217A (en) * | 1973-09-26 | 1976-09-28 | Kurashiki Boseki Kabushiki Kaisha | Method for removing sulfur dioxide from waste gases |
| WO2002074700A1 (en) * | 2001-03-16 | 2002-09-26 | Bayer Aktiengesellschaft | Nitrate reduction using so¿2? |
| US6761828B2 (en) | 2001-03-16 | 2004-07-13 | Bayer Aktiengesellschaft | Process for the reduction of concentration of nitrates and/or nitrogen-containing compounds by means of SO2 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1667447A1 (en) | 1971-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2797148A (en) | Recovery of nh3 from a gaseous mixture containing nh3 and hcn | |
| US4009243A (en) | Continuous process for scrubbing out hydrogen sulfide and ammonia from coke oven gas | |
| US3226192A (en) | Process of treating waste gas containing sulfur oxide | |
| GB706659A (en) | Process for the recovery of hydrocyanic acid and ammonia | |
| GB1181703A (en) | A Process for Removing Sulphur Dioxide from Waste Gases | |
| US4055627A (en) | Process for treating gases in the ammonia synthesis | |
| GB1447519A (en) | Process for removing impurities from a gas stream | |
| US1945163A (en) | Process for recovering the sulphur content of gases | |
| US2357195A (en) | Contact process for manufacturing sulphuric acid | |
| US1664997A (en) | Process of drying gases | |
| US1849357A (en) | Producing ammonia | |
| US3811246A (en) | Closed loop system for the elimination of fluorine pollution from phosphoric plants | |
| US2281762A (en) | Process of producing sulphur trioxide and oxygen | |
| US3147069A (en) | Continuous processing of the waste gases from the white calcium cyanamide manufacture | |
| GB489745A (en) | Process for the absorption and subsequent recovery of sulphur dioxide from gases containing the same | |
| US2090936A (en) | Process for concentrating impure weak sulphuric acid | |
| GB1037526A (en) | A method of drying gaseous chlorine | |
| US1861268A (en) | Gas dehydrating process | |
| US3607003A (en) | Method of removing acetone and acidic gases from gaseous mixtures | |
| US2960386A (en) | Process for the recovery of nitric oxide | |
| US3063802A (en) | Process for the production of di-ammonium phosphate | |
| GB1114407A (en) | Separating ammonia from the recycle gas in the synthesis of ammonia | |
| US2386359A (en) | Gas purification | |
| US2875848A (en) | Method of preparation of sulfur dioxide | |
| GB1298612A (en) | A process for cooling recycle liquids in a sulphuric acid contact plant |