GB885810A - Improvements in or relating to solvent extraction processes - Google Patents
Improvements in or relating to solvent extraction processesInfo
- Publication number
- GB885810A GB885810A GB32975/60A GB3297560A GB885810A GB 885810 A GB885810 A GB 885810A GB 32975/60 A GB32975/60 A GB 32975/60A GB 3297560 A GB3297560 A GB 3297560A GB 885810 A GB885810 A GB 885810A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solvent
- naphtha
- kerosene
- aromatics
- aromatic
- 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)
Abstract
Relatively aromatic and relatively paraffinic hydrocarbon mixtures are obtained by solvent extraction of a reformed naphtha with a solvent selective for aromatics, in counter-current to which is passed a kerosene counter solvent containing saturated and aromatic hydrocarbons and withdrawing an extract containing the naphtha aromatics and some kerosene aromatics and a raffinate comprising naphtha saturates and the kerosene of reduced aromatic content. The reformed naphtha is preferably obtained from a straight run naphtha obtained from a crude from which the kerosene is also obtained. The reformate should be bottomed and preferably also topped to obtain a heart cut, should boil in the range 35-220 DEG C. and should contain less than 2% bicyclic aromatics. The kerosene preferably has an I.B.P. 0-30 DEG C. above the end point of the naphtha and may be separated into a light and a heavy fraction, the heavy fraction being used as counter solvent, and the light fraction being withdrawn or being introduced to the extraction with the reformate at a central portion of the extraction zone, or being reformed together with the straight run naphtha. The kerosene will generally boil in the range 150-275 DEG C. and will preferably lose at least 25% of its bicyclic aromatics to the solvent. The solvent may be a glycol or sulfolane and may contain water and preferably at least 25% of any dissolved bicyclic aromatics are removed in the stripping before reusing the solvent. Both the aromatic extract and the raffinate may be separated into light and heavy fractions.ALSO:Relatively aromatic and relatively paraffinic hydrocarbon mixtures are obtained by solvent extraction of a reformed naphtha with a solvent selective for aromatics, in counter-current to which is passed a kerosene solvent containing saturated and aromatic hydrocarbons and withdrawing an extract containing the naphtha aromatics and some kerosene aromatics and a raffinate comprising naphtha saturates and the kerosene of reduced aromatic content. The reformed naphtha is preferably obtained from a straight run naphtha obtained from a crude from which the kerosene is also obtained. The reformate should be bottomed and preferably also topped to obtain a heart cut, should boil in the range 35 DEG C.-220 DEG C. and should contain less than 2% bicyclic aromatics. The kerosene preferably has an I.B.P. 0 DEG C.-30 DEG C. above the end point of the naphtha and may be separated into a light and a heavy fraction, the heavy fraction being used as counter solvent, and the light fraction being withdrawn or being introduced to the extraction with the reformate at a central portion of the extraction zone, or being reformed together with the straight run naphtha. The kerosene will generally boil in the range 150 DEG C.-275 DEG C. and will preferably lose at least 25% of its bicyclic aromatics to the solvent. The solvent may be a glycol or sulfolane and may contain water and preferably at least 25% of any dissolved bicyclic aromatics are removed in the stripping before reusing the solvent. Both the aromatic extract and the raffinate may be separated into light and heavy fractions.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US885810XA | 1959-09-28 | 1959-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB885810A true GB885810A (en) | 1961-12-28 |
Family
ID=22212208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32975/60A Expired GB885810A (en) | 1959-09-28 | 1960-09-26 | Improvements in or relating to solvent extraction processes |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1109300B (en) |
GB (1) | GB885810A (en) |
-
1960
- 1960-09-26 GB GB32975/60A patent/GB885810A/en not_active Expired
- 1960-09-26 DE DES70548A patent/DE1109300B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1109300B (en) | 1961-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2246297A (en) | Solvent extraction process | |
US2114524A (en) | Extraction process | |
GB948180A (en) | Process for the separation of an organic mixture containing hydrocarbons by means of extractive distillation | |
ES348547A1 (en) | Solvent recovery in the solvent extraction of hydrocarbon oils | |
GB999804A (en) | Process for the separation of a mixture by means of liquid-liquid extraction | |
GB980973A (en) | Process for the separation of a mixture by means of a selective solvent | |
GB1528798A (en) | Use of water/methanol mixtures as solvents for aromatics extraction | |
GB885810A (en) | Improvements in or relating to solvent extraction processes | |
ES318437A1 (en) | Procedure for obtaining aromatic hydrocarbons from mixtures of aromatic hydrocarbons and non-aromatic hydrocarbons by extraction with solvent. (Machine-translation by Google Translate, not legally binding) | |
GB812114A (en) | Solvent extraction process | |
GB1030832A (en) | Process for the extraction of aromatic hydrocarbons from mixtures of liquid hydrocarbons containing them | |
US2307242A (en) | Solvent treating of mineral oils | |
GB1164372A (en) | Method of Separating Aromatic Hydrocarbons from Mixtures Containing Them. | |
US3291727A (en) | Solvent separation of monocyclic aromatic, dicyclic aromatic and non-aromatic hydrocarbons | |
SU110485A1 (en) | The method of separation of aromatic compounds from mixtures of hydrocarbons by extraction | |
US2248067A (en) | Solvent extraction process | |
US2463036A (en) | Separation of cyclic olefins from straight chain olefins | |
GB459442A (en) | A process for the extraction of two or more liquid mixtures | |
GB459595A (en) | Improvements relating to the refining of hydrocarbon liquids | |
GB630245A (en) | Improvements relating to the production of high grade aviation fuels from crude petroleum oils | |
GB804502A (en) | Improvements relating to the catalytic reforming of petroleum hydrocarbons | |
GB739200A (en) | Process for the extraction and recovery of aromatic hydro-carbons from hydrocarbon mixtures | |
ES361112A1 (en) | Solvent extraction of aromatic hydrocarbons | |
GB937369A (en) | The separation of aromatic hydrocarbons from mixtures containing the same | |
ES269783A1 (en) | A procedure of extraction with solvent (Machine-translation by Google Translate, not legally binding) |