GB715322A - Improvements in or relating to dehazing petroleum oils - Google Patents
Improvements in or relating to dehazing petroleum oilsInfo
- Publication number
- GB715322A GB715322A GB687851A GB687851A GB715322A GB 715322 A GB715322 A GB 715322A GB 687851 A GB687851 A GB 687851A GB 687851 A GB687851 A GB 687851A GB 715322 A GB715322 A GB 715322A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- urea
- solvent
- haze
- separating
- 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
- C10G73/00—Recovery or refining of mineral waxes, e.g. montan wax
- C10G73/02—Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils
- C10G73/24—Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils by formation of adducts
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)
- Fats And Perfumes (AREA)
Abstract
A substantially wax-free petroleum oil which develops a haze on cooling to a low temperature is refined by contacting the oil with urea and separating the resulting urea reaction product from the oil. A haze-free oil is thus obtained. The urea may be activated with a solvent such as water, methanol, ethanol and acetone. The oil may be filtered through a bed of urea or agitated with urea in a mixer and afterwards separated by settling, centrifuging or filtering. A hydrocarbon solvent may be added to the oil, such as an aromatic or naphthenic solvent for example toluene or cyclohexane, a branched chain paraffin such as isooctane, or a hydrocarbon having less than 6 carbon atoms such as propane, pentane or butane. If necessary, the oil is first dewaxed by dilution with a solvent such as those described above, chilling and separating the wax. The urea may be regenerated by dissolving in a solvent or melting and separating from the haze-forming substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB687851A GB715322A (en) | 1951-03-22 | 1951-03-22 | Improvements in or relating to dehazing petroleum oils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB687851A GB715322A (en) | 1951-03-22 | 1951-03-22 | Improvements in or relating to dehazing petroleum oils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB715322A true GB715322A (en) | 1954-09-15 |
Family
ID=9822436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB687851A Expired GB715322A (en) | 1951-03-22 | 1951-03-22 | Improvements in or relating to dehazing petroleum oils |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB715322A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9620278B2 (en) * | 2014-02-19 | 2017-04-11 | General Electric Company | System and method for reducing partial discharge in high voltage planar transformers |
| CN112745889A (en) * | 2019-10-30 | 2021-05-04 | 中国石油化工股份有限公司 | Method for reducing cloud point of lubricating oil base oil |
-
1951
- 1951-03-22 GB GB687851A patent/GB715322A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9620278B2 (en) * | 2014-02-19 | 2017-04-11 | General Electric Company | System and method for reducing partial discharge in high voltage planar transformers |
| CN112745889A (en) * | 2019-10-30 | 2021-05-04 | 中国石油化工股份有限公司 | Method for reducing cloud point of lubricating oil base oil |
| CN112745889B (en) * | 2019-10-30 | 2023-01-10 | 中国石油化工股份有限公司 | Method for reducing cloud point of lubricating oil base oil |
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