CA1117063A - Dilution chilling dewaxing by modification of tower temperature profile - Google Patents
Dilution chilling dewaxing by modification of tower temperature profileInfo
- Publication number
- CA1117063A CA1117063A CA000289578A CA289578A CA1117063A CA 1117063 A CA1117063 A CA 1117063A CA 000289578 A CA000289578 A CA 000289578A CA 289578 A CA289578 A CA 289578A CA 1117063 A CA1117063 A CA 1117063A
- Authority
- CA
- Canada
- Prior art keywords
- solvent
- stage
- stages
- temperature
- dewaxing
- 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
- C10G73/32—Methods of cooling during dewaxing
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73606676A | 1976-10-27 | 1976-10-27 | |
US736,066 | 1976-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1117063A true CA1117063A (en) | 1982-01-26 |
Family
ID=24958374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000289578A Expired CA1117063A (en) | 1976-10-27 | 1977-10-26 | Dilution chilling dewaxing by modification of tower temperature profile |
Country Status (6)
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6033879B2 (ja) * | 1977-09-28 | 1985-08-05 | 善次 森 | 液体界面活性剤組成物の製造法 |
DE2838384A1 (de) * | 1978-09-02 | 1980-03-20 | Exxon Research Engineering Co | Verfahren zum entparaffinierung von paraffinhaltigem oel |
US4444648A (en) * | 1982-03-08 | 1984-04-24 | Exxon Research And Engineering Co. | Solvent dewaxing with methyl tertiary butyl ether |
US4461697A (en) * | 1982-09-22 | 1984-07-24 | Exxon Research And Engineering Co. | Slack wax de-oiling process |
US4541917A (en) * | 1983-12-19 | 1985-09-17 | Exxon Research And Engineering Co. | Modified deoiling-dewaxing process |
JPH0811795B2 (ja) * | 1984-01-20 | 1996-02-07 | エクソン・リサーチ・アンド・エンジニアリング・カンパニー | 撹拌熱交換器を用いて溶媒―油及びロウのスラリをロウろ過温度に冷却する改良された脱ロウ方法 |
JPH0199466U (US20110158925A1-20110630-C00042.png) * | 1987-12-24 | 1989-07-04 | ||
US4898659A (en) * | 1988-03-21 | 1990-02-06 | Exxon Research And Engineering Company | Multi-point cold solvent injection in scraped surface dewaxing chillers |
US5167847A (en) * | 1990-05-21 | 1992-12-01 | Exxon Research And Engineering Company | Process for producing transformer oil from a hydrocracked stock |
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 |
US5401383A (en) * | 1993-09-10 | 1995-03-28 | Exxon Research & Engineering Co. | Controlling chilling tower profile for dilution chilling dewaxing of 600N waxy oil |
US20060283805A1 (en) * | 2005-06-21 | 2006-12-21 | Schreppel Rudy Jr | Advanced separator system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2144652A (en) * | 1937-03-09 | 1939-01-24 | Pennzoil Co | Method of producing lubricating oil |
US2287966A (en) * | 1938-05-11 | 1942-06-30 | Cities Service Oil Co | Process for dewaxing mineral oils |
US2410483A (en) * | 1944-11-13 | 1946-11-05 | Mid Continent Petroleum Corp | Processes of dewaxing oils |
US3642609A (en) * | 1969-11-13 | 1972-02-15 | Exxon Research Engineering Co | Dewaxing waxy oil by dilution chilling |
US3644195A (en) * | 1969-12-01 | 1972-02-22 | Exxon Research Engineering Co | Solvent dewaxing-deoiling process |
-
1977
- 1977-10-22 DE DE2747477A patent/DE2747477C2/de not_active Expired
- 1977-10-26 JP JP12769177A patent/JPS5354205A/ja active Granted
- 1977-10-26 FR FR7732332A patent/FR2369334A1/fr active Granted
- 1977-10-26 CA CA000289578A patent/CA1117063A/en not_active Expired
- 1977-10-27 NL NLAANVRAGE7711807,A patent/NL185094C/xx not_active IP Right Cessation
- 1977-12-27 US US05/864,213 patent/US4146461A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL185094B (nl) | 1989-08-16 |
FR2369334A1 (fr) | 1978-05-26 |
FR2369334B1 (US20110158925A1-20110630-C00042.png) | 1984-06-22 |
NL185094C (nl) | 1990-01-16 |
DE2747477A1 (de) | 1978-05-03 |
DE2747477C2 (de) | 1987-05-14 |
JPS6115117B2 (US20110158925A1-20110630-C00042.png) | 1986-04-22 |
NL7711807A (nl) | 1978-05-02 |
JPS5354205A (en) | 1978-05-17 |
US4146461A (en) | 1979-03-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3773650A (en) | Dewaxing process | |
CA1117063A (en) | Dilution chilling dewaxing by modification of tower temperature profile | |
US3775288A (en) | Combination of dilution chilling with scraped surface chilling in dewaxing lubricating oils | |
US3681230A (en) | Immiscible filtration of dilution chilled waxy oils | |
US4013542A (en) | Partial predilution dilution chilling | |
US4115241A (en) | Solvent dewaxing process | |
US4111790A (en) | Dilution chilling dewaxing solvent | |
US3871991A (en) | Temporarily immiscible dewaxing | |
US4441987A (en) | Dewaxing process using agitated heat exchanger to chill solvent-oil and wax slurry to wax filtration temperature | |
US4502787A (en) | Agitated heat exchanger to chill solvent-oil and wax slurry to wax filtration temperature | |
US3850740A (en) | Partial predilution dilution chilling | |
US3670888A (en) | Method of separation of wax from oil | |
EP0088603B1 (en) | Process for solvent dewaxing hydrocarbon oil using methyl tertiary butyl ether | |
US4081352A (en) | Combination extraction-dewaxing of waxy petroleum oils | |
US4191631A (en) | Dewaxing process | |
US4145275A (en) | Dilchill dewaxing using wash filtrate solvent dilution | |
US5401383A (en) | Controlling chilling tower profile for dilution chilling dewaxing of 600N waxy oil | |
US3972802A (en) | Immiscible coolant in propylene-acetone dewaxing | |
US4088565A (en) | Solvent dewaxing process | |
US4216075A (en) | Combination dewaxing process | |
EP0110651B1 (en) | Process for separating wax from mixture of wax and oil or wax, oil and solvent | |
US4514280A (en) | Dewaxing waxy oil by dilution chilling employing static mixing means | |
US4115244A (en) | Solvent dewaxing process | |
US4203824A (en) | Polyvinylpyrrolidone dewaxing aid for bright stocks | |
GB2028863A (en) | Improved dilution chilling dewaxing solvent |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |