ES397236A1 - Solvent dewaxing process - Google Patents
Solvent dewaxing processInfo
- Publication number
- ES397236A1 ES397236A1 ES397236A ES397236A ES397236A1 ES 397236 A1 ES397236 A1 ES 397236A1 ES 397236 A ES397236 A ES 397236A ES 397236 A ES397236 A ES 397236A ES 397236 A1 ES397236 A1 ES 397236A1
- Authority
- ES
- Spain
- Prior art keywords
- oil
- solvent
- wax
- temperature
- heated
- 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
- 239000002904 solvent Substances 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 3
- 239000003921 oil Substances 0.000 abstract 6
- 238000001914 filtration Methods 0.000 abstract 3
- 239000011877 solvent mixture Substances 0.000 abstract 3
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
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
- C10G73/06—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)
- Flow Control (AREA)
- Extraction Or Liquid Replacement (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Lubricants (AREA)
Abstract
Lubricating oil of low pour test is produced in a solvent dewaxing process wherein wax-bearing oil is first heated to a temperature above the melting point of the wax contained therein, solvent is admixed with the heated oil, the solvent-oil mixture is cooled to a dewaxing temperature and the wax separated by filtration. Wax and dewaxed oils are recovered as products and solvent is recovered for recycle and reuse in the process. Cold solvent is added to the heated wax-bearing oil to rapidly cool the oil-solvent mixture to a temperature below the temperature of the melting point of the wax contained therein and above the temperature at which wax is crystallized from the oil-solvent mixture. The cooled oil-solvent mixture is then chilled at a final chilling rate of 0.3 DEG to 3.0 DEG F. per hour to a filtration temperature above 10 DEG below the pour point of the dewaxed oil product. The filtration rate is continuously determined and the final chilling rate is controlled in response thereto.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10007070A | 1970-12-21 | 1970-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES397236A1 true ES397236A1 (en) | 1974-05-01 |
Family
ID=22277967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES397236A Expired ES397236A1 (en) | 1970-12-21 | 1971-11-22 | Solvent dewaxing process |
Country Status (22)
| Country | Link |
|---|---|
| US (1) | US3764517A (en) |
| JP (1) | JPS503763B1 (en) |
| AR (1) | AR212231A1 (en) |
| AT (1) | AT341637B (en) |
| AU (1) | AU451794B2 (en) |
| BE (1) | BE775817A (en) |
| BR (1) | BR7107984D0 (en) |
| CA (1) | CA952845A (en) |
| DE (1) | DE2131844A1 (en) |
| DK (1) | DK134566B (en) |
| EG (1) | EG10531A (en) |
| ES (1) | ES397236A1 (en) |
| FI (1) | FI55518B (en) |
| FR (1) | FR2118914B1 (en) |
| GB (1) | GB1326326A (en) |
| IT (1) | IT944223B (en) |
| NL (1) | NL166055C (en) |
| PH (1) | PH9605A (en) |
| SE (1) | SE376630B (en) |
| TR (1) | TR17836A (en) |
| YU (1) | YU35160B (en) |
| ZA (1) | ZA717553B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213944U (en) * | 1975-07-18 | 1977-01-31 | ||
| US4115242A (en) * | 1977-07-05 | 1978-09-19 | Texaco Inc. | Solvent dewaxing process |
| US4128472A (en) * | 1977-07-05 | 1978-12-05 | Texaco Inc. | Solvent dewaxing process |
| US4115241A (en) * | 1977-07-05 | 1978-09-19 | Texaco Inc. | Solvent dewaxing process |
| US4115245A (en) * | 1977-07-05 | 1978-09-19 | Texaco Inc. | Solvent dewaxing process |
| US4169039A (en) * | 1977-12-27 | 1979-09-25 | Exxon Research & Engineering Co. | Recovering useful oil from wax filter hot washings and dumped slurry |
| EP0054031A4 (en) * | 1980-06-20 | 1982-11-08 | Texaco Development Corp | Solvent dewaxing process. |
| US4354921A (en) * | 1981-07-27 | 1982-10-19 | Texaco Inc. | Solvent dewaxing process |
| US4444648A (en) * | 1982-03-08 | 1984-04-24 | Exxon Research And Engineering Co. | Solvent dewaxing with methyl tertiary butyl ether |
| US4885062A (en) * | 1988-06-20 | 1989-12-05 | Texaco Inc. | Lube oil solvent dewaxing control system |
| US5474668A (en) * | 1991-02-11 | 1995-12-12 | University Of Arkansas | Petroleum-wax separation |
| US5620588A (en) * | 1991-02-11 | 1997-04-15 | Ackerson; Michael D. | Petroleum-wax separation |
| US5949017A (en) * | 1996-06-18 | 1999-09-07 | Abb Power T&D Company Inc. | Electrical transformers containing electrical insulation fluids comprising high oleic acid oil compositions |
| WO2006096872A2 (en) * | 2005-03-09 | 2006-09-14 | Cargill, Incorporated | Separation of sunflower oil and wax |
| US8029661B2 (en) * | 2006-10-23 | 2011-10-04 | Exxonmobil Research And Engineering Company | Method for on-line monitoring of wax crystallization |
| NO334539B1 (en) * | 2007-10-19 | 2014-03-31 | Statoilhydro Asa | Procedure for wax removal |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2410483A (en) * | 1944-11-13 | 1946-11-05 | Mid Continent Petroleum Corp | Processes of dewaxing oils |
| US3549514A (en) * | 1969-01-09 | 1970-12-22 | Texaco Inc | Methods and apparatus for monitoring and control of solvent dewaxing processes |
| US3642609A (en) * | 1969-11-13 | 1972-02-15 | Exxon Research Engineering Co | Dewaxing waxy oil by dilution chilling |
-
1970
- 1970-12-21 US US00100070A patent/US3764517A/en not_active Expired - Lifetime
-
1971
- 1971-03-13 JP JP46013647A patent/JPS503763B1/ja active Pending
- 1971-06-26 DE DE19712131844 patent/DE2131844A1/en active Pending
- 1971-07-29 CA CA119,450A patent/CA952845A/en not_active Expired
- 1971-08-18 AT AT720871A patent/AT341637B/en not_active IP Right Cessation
- 1971-09-13 PH PH12835*UA patent/PH9605A/en unknown
- 1971-11-09 GB GB5187771A patent/GB1326326A/en not_active Expired
- 1971-11-10 ZA ZA717553A patent/ZA717553B/en unknown
- 1971-11-12 AR AR239001A patent/AR212231A1/en active
- 1971-11-17 AU AU35802/71A patent/AU451794B2/en not_active Expired
- 1971-11-18 TR TR17836A patent/TR17836A/en unknown
- 1971-11-22 ES ES397236A patent/ES397236A1/en not_active Expired
- 1971-11-23 YU YU2953/71A patent/YU35160B/en unknown
- 1971-11-24 FI FI3354/71A patent/FI55518B/en active
- 1971-11-25 BE BE775817A patent/BE775817A/en not_active IP Right Cessation
- 1971-11-29 SE SE7115260-7A patent/SE376630B/en unknown
- 1971-12-01 BR BR7984/71A patent/BR7107984D0/en unknown
- 1971-12-14 FR FR7144804A patent/FR2118914B1/fr not_active Expired
- 1971-12-19 EG EG540/71A patent/EG10531A/en active
- 1971-12-20 IT IT32640/71A patent/IT944223B/en active
- 1971-12-20 NL NL7117434.A patent/NL166055C/en not_active IP Right Cessation
- 1971-12-21 DK DK624571AA patent/DK134566B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL166055B (en) | 1981-01-15 |
| AU3580271A (en) | 1973-05-24 |
| SE376630B (en) | 1975-06-02 |
| BE775817A (en) | 1972-05-25 |
| DK134566B (en) | 1976-11-29 |
| FR2118914B1 (en) | 1976-03-26 |
| YU295371A (en) | 1980-03-15 |
| FR2118914A1 (en) | 1972-08-04 |
| AT341637B (en) | 1978-02-27 |
| YU35160B (en) | 1980-09-25 |
| BR7107984D0 (en) | 1973-04-10 |
| AR212231A1 (en) | 1978-06-15 |
| TR17836A (en) | 1976-04-13 |
| ZA717553B (en) | 1973-03-28 |
| DK134566C (en) | 1977-05-09 |
| IT944223B (en) | 1973-04-20 |
| ATA720871A (en) | 1977-06-15 |
| US3764517A (en) | 1973-10-09 |
| NL166055C (en) | 1981-06-15 |
| GB1326326A (en) | 1973-08-08 |
| EG10531A (en) | 1983-12-31 |
| AU451794B2 (en) | 1974-07-18 |
| NL7117434A (en) | 1972-06-23 |
| PH9605A (en) | 1976-01-19 |
| FI55518B (en) | 1979-04-30 |
| DE2131844A1 (en) | 1972-07-13 |
| JPS503763B1 (en) | 1975-02-10 |
| CA952845A (en) | 1974-08-13 |
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