CA2077218A1 - Process and apparatus for reclaiming waste gas treating chemicals - Google Patents
Process and apparatus for reclaiming waste gas treating chemicalsInfo
- Publication number
- CA2077218A1 CA2077218A1 CA 2077218 CA2077218A CA2077218A1 CA 2077218 A1 CA2077218 A1 CA 2077218A1 CA 2077218 CA2077218 CA 2077218 CA 2077218 A CA2077218 A CA 2077218A CA 2077218 A1 CA2077218 A1 CA 2077218A1
- Authority
- CA
- Canada
- Prior art keywords
- vapor
- gas treating
- water vapor
- liquid residue
- solution
- 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.)
- Granted
Links
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Process and apparatus for reclaiming or concentrating waste aqueous solutions of gas treating chemicals, such as alkanolamines, used for removing acid components or water vapor from natural gas. The process involves heating the waste solution under a high vacuum to form a vapor and a liquid residue. The temperature and vacuum can be varied to form a vapor consisting mainly of water vapor or a vapor containing both water vapor and vaporized gas treating chemical. The vapor is subsequently condensed or passed through a wash column to produce a concentrated solution.
The liquid residue is heated by passing it through a single-pass, generally co-current heater at a rate which avoids localized overheating of a liquid to a temperature above the decomposition temperature of the gas treating chemical.
The heated liquid residue is then used to heat the feed waste solution by being thoroughly mixed with it, thus avoiding overheating of the feed solution. The production of corrosive elements and the use of prolonged residence times is avoided so that the apparatus may be made of carbon steel rather than more expensive stainless steel.
The liquid residue is heated by passing it through a single-pass, generally co-current heater at a rate which avoids localized overheating of a liquid to a temperature above the decomposition temperature of the gas treating chemical.
The heated liquid residue is then used to heat the feed waste solution by being thoroughly mixed with it, thus avoiding overheating of the feed solution. The production of corrosive elements and the use of prolonged residence times is avoided so that the apparatus may be made of carbon steel rather than more expensive stainless steel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US928,365 | 1992-08-12 | ||
| US07/928,365 US5389208A (en) | 1988-07-18 | 1992-08-12 | Process for reclaiming and/or concentrating waste aqueous solutions of gas treating chemicals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2077218A1 true CA2077218A1 (en) | 1994-02-13 |
| CA2077218C CA2077218C (en) | 1998-04-28 |
Family
ID=25456146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2077218 Expired - Lifetime CA2077218C (en) | 1992-08-12 | 1992-08-31 | Process and apparatus for reclaiming waste gas treating chemicals |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2077218C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115615065A (en) * | 2022-12-05 | 2023-01-17 | 安徽普泛能源技术有限公司 | Equipment for recovering outlet gas of safety valve and purifying non-condensable gas and application of equipment |
-
1992
- 1992-08-31 CA CA 2077218 patent/CA2077218C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115615065A (en) * | 2022-12-05 | 2023-01-17 | 安徽普泛能源技术有限公司 | Equipment for recovering outlet gas of safety valve and purifying non-condensable gas and application of equipment |
| CN115615065B (en) * | 2022-12-05 | 2023-03-28 | 安徽普泛能源技术有限公司 | Equipment for recovering outlet gas of safety valve and purifying non-condensable gas and application of equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2077218C (en) | 1998-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3922222A (en) | Method for treatment of urea crystallizer condensate | |
| US5232605A (en) | Breakdown of waste waters containing aromatic nitro compounds | |
| AU570438B2 (en) | Process and apparatus for heat treating food products | |
| JPS57160912A (en) | Method of recovering urea, ammonia and carbon dioxide from diluted aqueous solution | |
| EP0158461B1 (en) | Purification and reconcentration of waste sulphuric acid | |
| US4673560A (en) | Generation of sulphur trioxide from oleum using microwave energy | |
| DE3018663A1 (en) | METHOD AND DEVICE FOR REGENERATING SULFURIC ACID | |
| KR920008519B1 (en) | Process for the preparation of ferric chloride from ferrous chloride | |
| JP2010214364A (en) | Heater, industrial waste treatment method, and water desalination method | |
| CA2077218A1 (en) | Process and apparatus for reclaiming waste gas treating chemicals | |
| NZ214327A (en) | Continuous generation of sulphur trioxide from oleum | |
| JPH01133910A (en) | Method and apparatus for generating sulfur trioxide from fuming sulfuric acid using microwave energy | |
| KR20010088313A (en) | Method for treating spent caustic streams | |
| JPS5916513B2 (en) | Method for detoxifying cyanide and cyanide-containing solutions | |
| GB2096124A (en) | Production of ammonium nitrate | |
| RU2198841C1 (en) | Method of decolorization of purified phosphoric acid | |
| US2838373A (en) | Method for treatment of spent hydrochloric acid pickle liquor for the recovery of iron oxide, ammonium sulphate and hydrochloric acid | |
| GB490022A (en) | Treatment of boiler feed water, particularly for the removal of carbon dioxide | |
| JPS6470180A (en) | Waste water treatment | |
| JP2000229236A5 (en) | ||
| GB2212497A (en) | Degradation of nitroglycerine in residual acids | |
| EP0022473A1 (en) | Process and apparatus for regenerating sulphuric acid | |
| JPS62100416A (en) | Method for distilling and purifying arsenic trichloride | |
| GB2205086A (en) | Generation of sulphur trioxide from oleum using microwave energy | |
| JPS60187898A (en) | Oxidative destruction treating method of radioactive waste liquor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |