SE7501226L - - Google Patents
Info
- Publication number
- SE7501226L SE7501226L SE7501226A SE7501226A SE7501226L SE 7501226 L SE7501226 L SE 7501226L SE 7501226 A SE7501226 A SE 7501226A SE 7501226 A SE7501226 A SE 7501226A SE 7501226 L SE7501226 L SE 7501226L
- Authority
- SE
- Sweden
- Prior art keywords
- water
- phase
- solvent
- recycled
- raffinate
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/10—Purification; Separation; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
1502323 Separating aromatic hydrocarbons from mixtures UNION CARBIDE CORP 4 Feb 1975 [5 Feb 1974] 4662/75 Heading C5E Aromatic hydrocarbons boiling in the range 80-175‹ C. are recovered from a feed 1 by contacting at 100-200‹ C. and 6-14À5 atmospheres in an extraction column 3 with a mixture of water and a water-miscible organic solvent, having a boiling point of at least 200‹ C., and with reflux hydrocarbons to provide an extract 19 comprising aromatic hydrocarbons, solvent and water and a raffinate 5 comprising aliphatic hydrocarbons. The extract 19 is separated in a distillation zone 23, with flash and fractionation utilizing steam, into an overhead distillate 18, comprising a water phase 31 and a hydrocarbon phase 18, which is recycled as reflux to the bottom of the extraction zone 3, a side stream comprising an aromatics phase 26 and a water phase 37, and a bottoms 14, comprising solvent and water, which is recycled to the top of the extraction zone. All or a portion 33 of the water phase 31 is washed at 39 with a slip stream 14, comprising at least 95 wt. per cent of aromatic hydrocarbons and equal in weight to 0À1 to 5% of the aromatics in the feed 1, to remove aliphatics from the water. The used slip stream is recycled to the feed 1 as the stream 16 and the purified water phase 43 is used to wash the aromatics phase 26 at 44. The raffinate 5 is washed at 7 and 8 with process water 20 and 96 respectively to provide an aliphatic raffinate product and one or more solvent-containing raffinate water phases 20a which are recycled to the mid-point of the extraction zone. The extraction solvent can be N-methyl-2- pyrrolidone, triethylene glycol, tetraethylene glycol, acetamide, diethylenetriamine, triethylenetetramine, diethanolamine, para-cresol or metacresol.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43970974A | 1974-02-05 | 1974-02-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7501226L true SE7501226L (en) | 1975-08-06 |
| SE409119B SE409119B (en) | 1979-07-30 |
Family
ID=23745825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7501226A SE409119B (en) | 1974-02-05 | 1975-02-04 | PROCEDURE FOR EXTRACTING THE AROMATIC CARBON FROM MIXTURES WITH ALIFATIC CARBON THROUGH A MULTI-STEP PROCEDURE INCLUDING EXTRACTION, DISTILLATION AND FRACTIONING AND WASHING |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5747717B2 (en) |
| AR (1) | AR214037A1 (en) |
| AU (1) | AU502194B2 (en) |
| BE (1) | BE825173A (en) |
| BR (1) | BR7402696A (en) |
| CA (1) | CA1055876A (en) |
| FR (1) | FR2259891B1 (en) |
| GB (1) | GB1502323A (en) |
| IT (1) | IT1031454B (en) |
| NL (1) | NL182558C (en) |
| SE (1) | SE409119B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62220585A (en) * | 1986-03-14 | 1987-09-28 | ユニオン・カ−バイド・コ−ポレ−シヨン | Separation of hydrocarbon from raw material mixture supplied |
| CA2727906C (en) * | 2008-06-15 | 2016-05-31 | Craig Nazzer | Process for separating solids from valuable or harmful liquids by vaporisation |
| CN102408914B (en) * | 2011-10-10 | 2014-03-05 | 中国石油化工股份有限公司 | Technological process for relieving foaming of stripping tower in aromatic extraction liquid-liquid extraction system |
| BE1029922B1 (en) * | 2021-11-12 | 2023-06-12 | Thyssenkrupp Uhde Eng Services Gmbh | Process and device for separating a hydrocarbon-containing feed stream by extractive distillation |
| WO2023083655A1 (en) * | 2021-11-12 | 2023-05-19 | Thyssenkrupp Industrial Solutions Ag | Method and device for separating a hydrocarbon-containing feedstock stream by extractive distillation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE788871A (en) * | 1971-09-16 | 1973-03-15 | Union Carbide Corp | PROCESS OF SEPARATION BY EXTRACTION AND |
| US3788980A (en) * | 1971-12-21 | 1974-01-29 | Union Carbide Corp | Process for the separation of aromatic hydrocarbons from a mixed hydrocarbon feedstock |
| US3779904A (en) * | 1971-12-21 | 1973-12-18 | Union Carbide Corp | Process for the separation of aromatic hydrocarbons from a mixed hydrocarbon feedstock |
-
1974
- 1974-04-05 BR BR269674A patent/BR7402696A/en unknown
-
1975
- 1975-01-24 CA CA218,599A patent/CA1055876A/en not_active Expired
- 1975-02-04 GB GB466275A patent/GB1502323A/en not_active Expired
- 1975-02-04 AR AR25752075A patent/AR214037A1/en active
- 1975-02-04 JP JP50014035A patent/JPS5747717B2/ja not_active Expired
- 1975-02-04 BE BE153051A patent/BE825173A/en not_active IP Right Cessation
- 1975-02-04 NL NL7501311A patent/NL182558C/en not_active IP Right Cessation
- 1975-02-04 FR FR7503413A patent/FR2259891B1/fr not_active Expired
- 1975-02-04 AU AU77879/75A patent/AU502194B2/en not_active Expired
- 1975-02-04 IT IT1994075A patent/IT1031454B/en active
- 1975-02-04 SE SE7501226A patent/SE409119B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA1055876A (en) | 1979-06-05 |
| AU7787975A (en) | 1976-08-05 |
| NL7501311A (en) | 1975-08-07 |
| GB1502323A (en) | 1978-03-01 |
| NL182558B (en) | 1987-11-02 |
| AU502194B2 (en) | 1979-07-19 |
| BE825173A (en) | 1975-08-04 |
| SE409119B (en) | 1979-07-30 |
| JPS50108226A (en) | 1975-08-26 |
| IT1031454B (en) | 1979-04-30 |
| DE2504639A1 (en) | 1975-08-07 |
| FR2259891A1 (en) | 1975-08-29 |
| DE2504639B2 (en) | 1977-04-21 |
| NL182558C (en) | 1988-04-05 |
| AR214037A1 (en) | 1979-04-30 |
| FR2259891B1 (en) | 1978-12-29 |
| JPS5747717B2 (en) | 1982-10-12 |
| BR7402696A (en) | 1975-12-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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