GB979772A - Improvements of low temperature properties of oils - Google Patents
Improvements of low temperature properties of oilsInfo
- Publication number
- GB979772A GB979772A GB8950/62A GB895062A GB979772A GB 979772 A GB979772 A GB 979772A GB 8950/62 A GB8950/62 A GB 8950/62A GB 895062 A GB895062 A GB 895062A GB 979772 A GB979772 A GB 979772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wax
- cooling
- oil
- closed point
- crude oil
- 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
- C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for
- C10G31/06—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for by heating, cooling, or pressure treatment
-
- 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
-
- 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
- C10G73/06—Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils with the use of 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
<PICT:0979772/C4-C5/1> The closed point of crude oils and residual oil fractions obtained therefrom is reduced by selectively removing wax which causes high closed points therein, in a process which comprises heating the oil to a temperature sufficiently high, for example 160-220 DEG F., to melt all of the wax therein and to disperse the asphaltenes and resins present, cooling the heated oil to cause the wax to precipitate and form large agglomerates, and centrifuging, for example at 35-55 DEG F., to separate a dense wax phase and to recover a crude oil of substantially lower closed point, in which the rate of cooling from just above the closed point of the crude oil to the temperature of centrifuging is from 0.5 DEG to 2 DEG F. per minute. Fig. 3 illustrates diagrammatically a process according to the invention. The cooling to just above the closed point may be shock cooling. The centrifuge may exert a force of 7000-10,000 gees, and the residence time may be for a period of a few seconds to 5 minutes. The crude oil may contain up to 12% wax.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US98668A US3136711A (en) | 1961-03-27 | 1961-03-27 | Process for reducing the pour points of crude oils |
Publications (1)
Publication Number | Publication Date |
---|---|
GB979772A true GB979772A (en) | 1965-01-06 |
Family
ID=32680146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8950/62A Expired GB979772A (en) | 1961-03-27 | 1962-03-08 | Improvements of low temperature properties of oils |
Country Status (6)
Country | Link |
---|---|
US (1) | US3136711A (en) |
BE (1) | BE644537A (en) |
DE (1) | DE1216468B (en) |
FR (1) | FR1392602A (en) |
GB (1) | GB979772A (en) |
NL (1) | NL6401913A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115125034A (en) * | 2022-07-29 | 2022-09-30 | 河南申豫之星空天技术有限公司 | Device and process for preparing high-melting-point phase-change wax by heating and sweating heat-conducting oil |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3369992A (en) * | 1966-03-18 | 1968-02-20 | Gulf Research Development Co | Low pour point synthetic crude oil |
GB8318313D0 (en) * | 1983-07-06 | 1983-08-10 | British Petroleum Co Plc | Transporting and treating viscous crude oils |
GB2169393B (en) * | 1985-01-07 | 1988-09-01 | Phillips Petroleum Co | Method for cleaning heat exchangers |
GB8902116D0 (en) * | 1989-02-01 | 1989-03-22 | Great Eastern Petroleum Uk Ltd | Method for the recovery of black oil residues |
US20020157991A1 (en) * | 2001-03-27 | 2002-10-31 | Mason Thomas G. | Disaggregation of asphaltenes in incompatible petroleum oil mixtures |
WO2015108883A1 (en) * | 2014-01-20 | 2015-07-23 | Applied Research Associates, Inc. | High efficiency pour point reduction process |
CN115851314B (en) * | 2022-11-15 | 2024-05-31 | 国家能源集团宁夏煤业有限责任公司 | Lubricating oil base oil and preparation method thereof |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US369902A (en) * | 1887-09-13 | Sylvania | ||
US1416890A (en) * | 1920-03-12 | 1922-05-23 | Philip T Sharples | Method of refining petroleum |
US1732143A (en) * | 1927-07-16 | 1929-10-15 | Travis Process Corp | Process of removing amorphous wax from petroleum oils |
US1974398A (en) * | 1931-08-15 | 1934-09-18 | Tide Water Oil Company | Method of chilling lubricating oils for dewaxing |
US2100662A (en) * | 1935-03-12 | 1937-11-30 | Standard Oil Co | Dewaxing petroleum oils |
US2770577A (en) * | 1952-07-11 | 1956-11-13 | Stossel Ernest | Process of separating microcrystalline waxes from crude oil |
GB851135A (en) * | 1958-07-23 | 1960-10-12 | British Petroleum Co | Treatment of fuel oils |
US3038854A (en) * | 1959-02-09 | 1962-06-12 | Texaco Development Corp | Solvent dewaxing |
-
1961
- 1961-03-27 US US98668A patent/US3136711A/en not_active Expired - Lifetime
-
1962
- 1962-03-08 GB GB8950/62A patent/GB979772A/en not_active Expired
- 1962-03-23 DE DEE22599A patent/DE1216468B/en active Pending
-
1964
- 1964-02-03 FR FR962507A patent/FR1392602A/fr not_active Expired
- 1964-02-27 NL NL6401913A patent/NL6401913A/xx unknown
- 1964-02-28 BE BE644537D patent/BE644537A/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115125034A (en) * | 2022-07-29 | 2022-09-30 | 河南申豫之星空天技术有限公司 | Device and process for preparing high-melting-point phase-change wax by heating and sweating heat-conducting oil |
CN115125034B (en) * | 2022-07-29 | 2023-08-01 | 河南申豫之星空天技术有限公司 | Device and process for preparing high-melting-point phase-change wax by heating conduction oil to sweat |
Also Published As
Publication number | Publication date |
---|---|
US3136711A (en) | 1964-06-09 |
FR1392602A (en) | 1965-03-19 |
DE1216468B (en) | 1966-05-12 |
BE644537A (en) | 1964-08-28 |
NL6401913A (en) | 1965-08-30 |
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