GB1256597A - - Google Patents
Info
- Publication number
- GB1256597A GB1256597A GB1256597DA GB1256597A GB 1256597 A GB1256597 A GB 1256597A GB 1256597D A GB1256597D A GB 1256597DA GB 1256597 A GB1256597 A GB 1256597A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tower
- solvent
- introducing
- controlling
- signals
- 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
- C10G21/30—Controlling or regulating
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
1,256,597. Controlling solvent refining. TEXACO DEVELOPMENT CORP. 2 July, 1969, No. 33316/69. Heading B1X. [Also in Division C5] A solvent refining process in which a lubricating oil stock introduced at 1 is contacted in packed tower 6 with a solvent introduced at 10 is controlled by a method comprising generating first, second, third, fourth and fifth signals respectively responsive to the specific gravity of the feedstock, its viscosity, its refractive index, its flash point, and the desired viscosity of the refined oil, combining these signals manually or by means of computer 50 to produce two further signals which are used to control (1) the proportion of solvent to feedstock fed to the tower; by controlling operation of flow proportioner 54, and (2) the temperature of the extract mix leaving the tower, by controlling the rate of flow of coolant through 16-17-18. In other embodiments, instead of or in addition to the cooling coil shown, the temperature gradient in the tower may be produced by introducing feed at a lower temperature than solvent, by introducing a cold reflux stream or by withdrawing a side-stream of liquid from the tower, cooling it and re-introducing it. Solvents exemplified are furfural and N-methyl-2-pyrolidone.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3331669 | 1969-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1256597A true GB1256597A (en) | 1971-12-08 |
Family
ID=10351369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1256597D Expired GB1256597A (en) | 1969-07-02 | 1969-07-02 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1256597A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2181969A (en) * | 1985-08-30 | 1987-05-07 | Mather & Sons Ltd J E | Flow monitoring system |
| CN114177657A (en) * | 2021-12-23 | 2022-03-15 | 安徽国孚凤凰科技有限公司 | Coalescence-separation type saturated oil separation recovery device and method for base oil solvent extraction extract |
-
1969
- 1969-07-02 GB GB1256597D patent/GB1256597A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2181969A (en) * | 1985-08-30 | 1987-05-07 | Mather & Sons Ltd J E | Flow monitoring system |
| GB2181969B (en) * | 1985-08-30 | 1989-12-13 | Mather & Sons Ltd J E | Wine making plant |
| CN114177657A (en) * | 2021-12-23 | 2022-03-15 | 安徽国孚凤凰科技有限公司 | Coalescence-separation type saturated oil separation recovery device and method for base oil solvent extraction extract |
| CN114177657B (en) * | 2021-12-23 | 2023-03-10 | 安徽国孚凤凰科技有限公司 | Coalescence-separation type saturated oil separation recovery device and method for base oil solvent extraction extract |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |