GB734123A - Separating solid paraffin wax or a paraffln wax concentrate from oil - Google Patents

Separating solid paraffin wax or a paraffln wax concentrate from oil

Info

Publication number
GB734123A
GB734123A GB18745/52A GB1874552A GB734123A GB 734123 A GB734123 A GB 734123A GB 18745/52 A GB18745/52 A GB 18745/52A GB 1874552 A GB1874552 A GB 1874552A GB 734123 A GB734123 A GB 734123A
Authority
GB
United Kingdom
Prior art keywords
oil
flotation
foam
wax
gas
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
GB18745/52A
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.)
Bataafsche Petroleum Maatschappij NV
Original Assignee
Bataafsche Petroleum Maatschappij NV
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 Bataafsche Petroleum Maatschappij NV filed Critical Bataafsche Petroleum Maatschappij NV
Publication of GB734123A publication Critical patent/GB734123A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G73/00Recovery or refining of mineral waxes, e.g. montan wax
    • C10G73/02Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils
    • C10G73/26Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils by flotation

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)
  • Processing Of Solid Wastes (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Paraffin wax is separated from oil by a flotation process at a relatively low temperature (T1), the foam is separated and subjected to a second flotation process at a higher temperature (T2) at which only a part of the wax reverts to the liquid state, and the oil obtained is subjected to a third flotation process at a temperature (T3) lower than T2 and the foam separated. In the flotation process, the oil is cooled, the solid paraffin wax particles are removed by passing a gas through the oil, and the foam of wax is removed. Gases mentioned are air, nitrogen, methane and propane. The oils from the first and third flotation processes and the foams from the second and third may be blended together. The invention may be carried out in a five-stage process by subjecting the foam from the third flotation to a fourth flotation at a higher temperature (T4), separating the foam and subjecting the oil to a fifth flotation at a lower temperature (T5). T1, T3 and T5 are preferably the same, as also are T2 and T4. The foam may be heated either by a heater or by passing a hot gas through it, and cooling of the oil may be effected either by a cooler or by passing a cold flotation gas therethrough. Diluting agents may be added if the oil is too viscous. The treatment of a gas oil is described. Specifications 733,067 and 734,124 are referred to.ALSO:Paraffin wax is separated from oil by a flotation process at a relatively low temperature (T1), the foam is separated and subjected to a second flotation process at a higher temperature (T2) at which only part of the wax reverts to the liquid state, and the oil contained is subjected to a third flotation process at a temperature (T3) lower than T2 and the foam separated. In the flotation process, the oil is cooled, the solid paraffin wax particles are removed by passing a gas through the oil, and the foam of wax is removed. Gases mentioned are air, nitrogen, methane and propane. The oils from the first and third flotation processes, and the foams from the second and third, may be blended together. The invention may be carried out in a five-stage process by subjecting the foam from the third flotation to a fourth flotation at a higher temperature (T4), separating the foam and subjecting the oil to a fifth flotation at a lower temperature (T5). T1, T3 and T4 are preferably the same, as also are T2 and T5. The foam may be heated either by a heater or by passing a hot gas through it, and cooling of the oil may be effected either by a cooler or by passing a cold flotation gas therethrough. Diluting agents may be added if the oil is too viscous. The treatment of a gas oil is described. Specifications 733,067, [Group III], and 734,124 are referred to.
GB18745/52A 1951-07-26 1952-07-24 Separating solid paraffin wax or a paraffln wax concentrate from oil Expired GB734123A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL734123X 1951-07-26

Publications (1)

Publication Number Publication Date
GB734123A true GB734123A (en) 1955-07-27

Family

ID=19820367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18745/52A Expired GB734123A (en) 1951-07-26 1952-07-24 Separating solid paraffin wax or a paraffln wax concentrate from oil

Country Status (1)

Country Link
GB (1) GB734123A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347775A (en) * 1964-08-21 1967-10-17 Belge Petroles Sa Separation of waxy hydrocarbons from oils by flotation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347775A (en) * 1964-08-21 1967-10-17 Belge Petroles Sa Separation of waxy hydrocarbons from oils by flotation

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