GB992124A - Improvements relating to hydrocarbon separation processes using molecular sieves - Google Patents

Improvements relating to hydrocarbon separation processes using molecular sieves

Info

Publication number
GB992124A
GB992124A GB467862A GB467862A GB992124A GB 992124 A GB992124 A GB 992124A GB 467862 A GB467862 A GB 467862A GB 467862 A GB467862 A GB 467862A GB 992124 A GB992124 A GB 992124A
Authority
GB
United Kingdom
Prior art keywords
stage
feedstock
diluent
purge
straight chain
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
GB467862A
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.)
BP PLC
Original Assignee
BP PLC
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
Priority to NL288617D priority Critical patent/NL288617A/xx
Priority to BE627846D priority patent/BE627846A/xx
Application filed by BP PLC filed Critical BP PLC
Priority to GB467862A priority patent/GB992124A/en
Priority to FR923345A priority patent/FR1346154A/en
Priority to JP38005450A priority patent/JPS5112645B1/ja
Priority to DK52963A priority patent/DK117584B/en
Priority to DE19631470491 priority patent/DE1470491A1/en
Publication of GB992124A publication Critical patent/GB992124A/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
    • C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
    • C10G25/02—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents with ion-exchange material
    • C10G25/03—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents with ion-exchange material with crystalline alumino-silicates, e.g. molecular sieves

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

A cyclic vapour phase process for the separation of straight-chain hydrocarbons from mixtures, for example a petroleum fraction boiling in the range 150-400 DEG C., by means of a 5A molecular sieve comprises successive absorption, purge, and desorption stages, wherein the pressure in the absorption stage is 50-150 p.s.i. below the dew point pressure. Non-absorbed hydrocarbons are removed during the purge stage, and straight chain hydrocarbons recovered during the desorption stage. The feedstock may be mixed with a diluent of lower boiling point than the lowest boiling component of the mixture, for example nitrogen, the ratio of nitrogen to feedstock preferably being 0.5:1 to 5:1, which diluent material may also be employed as the purge material. In one form, wherein more than two absorbers are used, the effluent from the absorber being purged may be employed as the diluent. The desorption step may be effected by elution with a straight chain hydrocarbon having a lesser number of carbon atoms than the lowest boiling straight chain hydrocarbon in the feedstock, for example butane or pentane. The absorption stage is preferably operated at 300-400 DEG C., 50-300 p.s.i.g., LHSV 0.1-5. All the stages may be operated isothermally and isobarically. Specification 994,441 is referred to.ALSO:A cyclic vapour phase process for the separation of straight-chain hydrocarbons from mixtures, for example a petroleum fraction boiling in the range 150-400 DEG C., by means of a 5 molecular sieve comprises successive absorption, purge, and desorption stages, wherein the pressure in the absorption stage is 50-150 p.s.i. below the dew point pressure. Non-absorbed hydrocarbons are removed during the purge stage, and straight chain hydrocarbons recovered during the desorption stage. The feedstock may be mixed with a diluent of lower boiling point than the lowest boiling component of the mixture, for example nitrogen, the ratio of nitrogen to feedstock preferably being 0,5 : 1 to 5 : 1, which diluent material may also be employed as the purge material. In one form, wherein more than two absorbers are used, the effluent from the absorber being purged may be employed as the diluent. The desorption step may be effected by elution with a straight chain hydrocarbon having a lesser number of carbon atoms than the lowest boiling straight chain hydrocarbon in the feedstock, for example butane or pentane. The absorption stage is preferably operated at 300-400 DEG C., 50-300 p.s.i.g., LHSV 0,1-5. All the stages may be operated isothermally and isobarically. Specification 944,441 is referred to.
GB467862A 1962-02-07 1962-02-07 Improvements relating to hydrocarbon separation processes using molecular sieves Expired GB992124A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL288617D NL288617A (en) 1962-02-07
BE627846D BE627846A (en) 1962-02-07
GB467862A GB992124A (en) 1962-02-07 1962-02-07 Improvements relating to hydrocarbon separation processes using molecular sieves
FR923345A FR1346154A (en) 1962-02-07 1963-01-31 Cyclic vapor phase process for the separation of straight chain hydrocarbons from mixtures of hydrocarbons which contain them
JP38005450A JPS5112645B1 (en) 1962-02-07 1963-02-05
DK52963A DK117584B (en) 1962-02-07 1963-02-05 Isothermal process for the separation of unbranched hydrocarbons from petroleum fractions.
DE19631470491 DE1470491A1 (en) 1962-02-07 1963-02-06 Cyclic process for the separation of straight-chain hydrocarbons from hydrocarbon mixtures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB467862A GB992124A (en) 1962-02-07 1962-02-07 Improvements relating to hydrocarbon separation processes using molecular sieves

Publications (1)

Publication Number Publication Date
GB992124A true GB992124A (en) 1965-05-19

Family

ID=9781717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB467862A Expired GB992124A (en) 1962-02-07 1962-02-07 Improvements relating to hydrocarbon separation processes using molecular sieves

Country Status (6)

Country Link
JP (1) JPS5112645B1 (en)
BE (1) BE627846A (en)
DE (1) DE1470491A1 (en)
DK (1) DK117584B (en)
GB (1) GB992124A (en)
NL (1) NL288617A (en)

Also Published As

Publication number Publication date
DE1470491A1 (en) 1968-12-05
JPS5112645B1 (en) 1976-04-21
BE627846A (en)
DK117584B (en) 1970-05-11
NL288617A (en)

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