BR8702440A - PROCESS FOR COOLING, DEHUMIDIFYING, DEHYNTHENIZING AND DE-SCALING OF COAL DISTILLATION GASES - Google Patents
PROCESS FOR COOLING, DEHUMIDIFYING, DEHYNTHENIZING AND DE-SCALING OF COAL DISTILLATION GASESInfo
- Publication number
- BR8702440A BR8702440A BR8702440A BR8702440A BR8702440A BR 8702440 A BR8702440 A BR 8702440A BR 8702440 A BR8702440 A BR 8702440A BR 8702440 A BR8702440 A BR 8702440A BR 8702440 A BR8702440 A BR 8702440A
- Authority
- BR
- Brazil
- Prior art keywords
- tar
- naphthalene
- water
- cooling
- gas
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
- C10K1/06—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials combined with spraying with water
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Motor Or Generator Cooling System (AREA)
- Drying Of Gases (AREA)
Abstract
The process and respective plant are designed to process the gas distilled out of coal and exiting from coke-ovens (1), through a first cooling step down to 80-85 DEG C, by means of water sprays, thus obtaining a partial condensation of tar and naphthalene which will be collected in a manifold-tank or header (3) together with the cooling water and steam condensate. Thereafter, the gas is separated from the condensed materials and is then further cooled in a water-spray tower (11) down to a temperature of 2-30 DEG C to cause the total condensation of tar and almost total condensation of naphthalene and steam, thus purifying the gas from said materials. Naphthalene is removed from the cooling water and condensate flowing out of said tower (11) by absorbing it completely into the tar which is also contained in said water, by processing said water in a suitable decantation and flotation tank (18) where tar will settle down and naphthalene will float. Tar and naphthalene will be removed through suitable ducts (20,21) from the bottom and surface, respectively, and then introduced into a single piping (22) where they will contact with each other and tar will absorb naphthalene by dissolving it. Water from various sections of the plant will collect in a decanter (9) where the tar that has absorbed naphthalene settles down and is removed, whilst the purified water is re-cycled. Suitable provisions are utilized to promote and to accelerate to a maximum extent the absorption of naphthalene into the tar, during all the steps of the process.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT12476/86A IT1204163B (en) | 1986-05-14 | 1986-05-14 | DEHUMIDIFICATION COOLING SYSTEM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8702440A true BR8702440A (en) | 1988-02-23 |
Family
ID=11140614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8702440A BR8702440A (en) | 1986-05-14 | 1987-05-13 | PROCESS FOR COOLING, DEHUMIDIFYING, DEHYNTHENIZING AND DE-SCALING OF COAL DISTILLATION GASES |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0245814B1 (en) |
| AT (1) | ATE49992T1 (en) |
| BR (1) | BR8702440A (en) |
| DE (1) | DE3761568D1 (en) |
| ES (1) | ES2012468B3 (en) |
| IT (1) | IT1204163B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4439147A1 (en) * | 1994-11-03 | 1996-05-09 | Salzgitter Anlagenbau | Treating waste water, esp. from oil refineries |
| CN101975402B (en) * | 2010-10-31 | 2012-08-29 | 湖北科伦药业有限公司 | Boiler combustion energy-saving and emission-reducing system |
| CN108069155A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | A kind of storage tank discharging gas emission reduction and recovery system |
| CN110559803A (en) * | 2019-10-11 | 2019-12-13 | 武汉三立鼎兴科技有限公司 | Naphthalene-containing waste gas treatment system and treatment method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3451896A (en) * | 1967-04-07 | 1969-06-24 | Otto Construction Corp | Method of cleaning a stream of coke oven gas and apparatus therefor |
| DE2632092A1 (en) * | 1976-07-16 | 1978-01-26 | Otto & Co Gmbh Dr C | METHOD FOR COOLING GASES CONTAINING SOLIDS, TAR AND NAPHTHALINE |
| US4239511A (en) * | 1978-12-14 | 1980-12-16 | Krupp-Koppers Gmbh | Process and apparatus for cooling coke oven gas |
-
1986
- 1986-05-14 IT IT12476/86A patent/IT1204163B/en active
-
1987
- 1987-05-11 EP EP87106786A patent/EP0245814B1/en not_active Expired - Lifetime
- 1987-05-11 AT AT87106786T patent/ATE49992T1/en active
- 1987-05-11 ES ES87106786T patent/ES2012468B3/en not_active Expired - Lifetime
- 1987-05-11 DE DE8787106786T patent/DE3761568D1/en not_active Expired - Fee Related
- 1987-05-13 BR BR8702440A patent/BR8702440A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IT8612476A0 (en) | 1986-05-14 |
| IT1204163B (en) | 1989-03-01 |
| EP0245814B1 (en) | 1990-01-31 |
| ES2012468B3 (en) | 1990-04-01 |
| ATE49992T1 (en) | 1990-02-15 |
| DE3761568D1 (en) | 1990-03-08 |
| EP0245814A1 (en) | 1987-11-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Decision: intention to grant | ||
| KD | Notifcation of receipt (letter patent) | ||
| FG | Letter patent granted | ||
| B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
Free format text: PATENTE EXTINTA EM 13/05/2002 |