GB979772A - Improvements of low temperature properties of oils - Google Patents

Improvements of low temperature properties of oils

Info

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
Application number
GB8950/62A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB979772A publication Critical patent/GB979772A/en
Expired legal-status Critical Current

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.
GB8950/62A 1961-03-27 1962-03-08 Improvements of low temperature properties of oils Expired GB979772A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
PL3097165T3 (en) 2014-01-20 2022-11-07 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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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
DE1216468B (en) 1966-05-12
BE644537A (en) 1964-08-28
FR1392602A (en) 1965-03-19
US3136711A (en) 1964-06-09
NL6401913A (en) 1965-08-30

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