GB1125640A - Method of separating aromatic hydrocarbons from mixtures containing them - Google Patents
Method of separating aromatic hydrocarbons from mixtures containing themInfo
- Publication number
- GB1125640A GB1125640A GB5801066A GB5801066A GB1125640A GB 1125640 A GB1125640 A GB 1125640A GB 5801066 A GB5801066 A GB 5801066A GB 5801066 A GB5801066 A GB 5801066A GB 1125640 A GB1125640 A GB 1125640A
- Authority
- GB
- United Kingdom
- Prior art keywords
- extractor
- aromatic
- aromatic hydrocarbons
- hydrocarbons
- organic solvent
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,125,640. Extracting aromatic hydrocarbons. SOC. ITALIANA RESINE S.p.A. 28 Dec., 1966 [29 Dec., 1965], No. 58010/66. Heading C5E. Aromatic hydrocarbons are separated from liquid hydrocarbon mixtures by introducing the mixture into a multi-stage extractor at an elevated temperature countercurrent to an organic solvent comprising diethylene glycol and/or dipropylene glycol, or sulpholane, withdrawing from the extractor an aromatic-rich liquid extract and a non-aromatic-rich liquid raffinate, conveying said extract to a second multi-stage extractor, operating at lower temperature than the first, countercurrent to a saturated hydrocarbon mixture boiling at atmospheric pressure not lower than 160‹ C., recovering from the second extractor a first liquid phase comprising organic solvent (which may be recycled) and which is substantially free from aromatic hydrocarbons, and a second liquid phase comprising aromatic and saturated hydrocarbons and which is substantially free from solvent, and rectifying said second liquid phase to recover aromatics as product and saturated hydrocarbons which are recycled to the second extractor. The organic solvent preferably contains 2-30% water. A suitable saturated hydrocarbon is a C 12-14 fraction, which may be obtained by distillation of the raffinate from the first extractor. In an example, benzene of over 98% purity is recovered from a hydrogenated reforming petrol cut.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2890765 | 1965-12-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1125640A true GB1125640A (en) | 1968-08-28 |
Family
ID=11224486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5801066A Expired GB1125640A (en) | 1965-12-29 | 1966-12-28 | Method of separating aromatic hydrocarbons from mixtures containing them |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1509242A (en) |
GB (1) | GB1125640A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114317093A (en) * | 2021-12-23 | 2022-04-12 | 安徽国孚凤凰科技有限公司 | Extraction device and method for distillation distillate oil of waste lubricating oil |
-
1966
- 1966-12-28 FR FR89223A patent/FR1509242A/en not_active Expired
- 1966-12-28 GB GB5801066A patent/GB1125640A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114317093A (en) * | 2021-12-23 | 2022-04-12 | 安徽国孚凤凰科技有限公司 | Extraction device and method for distillation distillate oil of waste lubricating oil |
Also Published As
Publication number | Publication date |
---|---|
FR1509242A (en) | 1968-01-12 |
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