GB1502323A - Process for the separation of aromatic hydrocarbons from a mixed hydrocarbon feedstock - Google Patents

Process for the separation of aromatic hydrocarbons from a mixed hydrocarbon feedstock

Info

Publication number
GB1502323A
GB1502323A GB466275A GB466275A GB1502323A GB 1502323 A GB1502323 A GB 1502323A GB 466275 A GB466275 A GB 466275A GB 466275 A GB466275 A GB 466275A GB 1502323 A GB1502323 A GB 1502323A
Authority
GB
United Kingdom
Prior art keywords
water
phase
aromatic hydrocarbons
solvent
recycled
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
GB466275A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB1502323A publication Critical patent/GB1502323A/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
    • C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/10—Purification; Separation; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids

Abstract

1502323 Separating aromatic hydrocarbons from mixtures UNION CARBIDE CORP 4 Feb 1975 [5 Feb 1974] 4662/75 Heading C5E Aromatic hydrocarbons boiling in the range 80-175‹ C. are recovered from a feed 1 by contacting at 100-200‹ C. and 6-14À5 atmospheres in an extraction column 3 with a mixture of water and a water-miscible organic solvent, having a boiling point of at least 200‹ C., and with reflux hydrocarbons to provide an extract 19 comprising aromatic hydrocarbons, solvent and water and a raffinate 5 comprising aliphatic hydrocarbons. The extract 19 is separated in a distillation zone 23, with flash and fractionation utilizing steam, into an overhead distillate 18, comprising a water phase 31 and a hydrocarbon phase 18, which is recycled as reflux to the bottom of the extraction zone 3, a side stream comprising an aromatics phase 26 and a water phase 37, and a bottoms 14, comprising solvent and water, which is recycled to the top of the extraction zone. All or a portion 33 of the water phase 31 is washed at 39 with a slip stream 14, comprising at least 95 wt. per cent of aromatic hydrocarbons and equal in weight to 0À1 to 5% of the aromatics in the feed 1, to remove aliphatics from the water. The used slip stream is recycled to the feed 1 as the stream 16 and the purified water phase 43 is used to wash the aromatics phase 26 at 44. The raffinate 5 is washed at 7 and 8 with process water 20 and 96 respectively to provide an aliphatic raffinate product and one or more solvent-containing raffinate water phases 20a which are recycled to the mid-point of the extraction zone. The extraction solvent can be N-methyl-2- pyrrolidone, triethylene glycol, tetraethylene glycol, acetamide, diethylenetriamine, triethylenetetramine, diethanolamine, para-cresol or metacresol.
GB466275A 1974-02-05 1975-02-04 Process for the separation of aromatic hydrocarbons from a mixed hydrocarbon feedstock Expired GB1502323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43970974A 1974-02-05 1974-02-05

Publications (1)

Publication Number Publication Date
GB1502323A true GB1502323A (en) 1978-03-01

Family

ID=23745825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB466275A Expired GB1502323A (en) 1974-02-05 1975-02-04 Process for the separation of aromatic hydrocarbons from a mixed hydrocarbon feedstock

Country Status (11)

Country Link
JP (1) JPS5747717B2 (en)
AR (1) AR214037A1 (en)
AU (1) AU502194B2 (en)
BE (1) BE825173A (en)
BR (1) BR7402696A (en)
CA (1) CA1055876A (en)
FR (1) FR2259891B1 (en)
GB (1) GB1502323A (en)
IT (1) IT1031454B (en)
NL (1) NL182558C (en)
SE (1) SE409119B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009154477A1 (en) * 2008-06-15 2009-12-23 Craig Nazzer Process for separating solids from valuable or harmful liquids by vaporisation

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62220585A (en) * 1986-03-14 1987-09-28 ユニオン・カ−バイド・コ−ポレ−シヨン Separation of hydrocarbon from raw material mixture supplied
CN102408914B (en) * 2011-10-10 2014-03-05 中国石油化工股份有限公司 Technological process for relieving foaming of stripping tower in aromatic extraction liquid-liquid extraction system
WO2023083655A1 (en) * 2021-11-12 2023-05-19 Thyssenkrupp Industrial Solutions Ag Method and device for separating a hydrocarbon-containing feedstock stream by extractive distillation
BE1029922B1 (en) * 2021-11-12 2023-06-12 Thyssenkrupp Uhde Eng Services Gmbh Process and device for separating a hydrocarbon-containing feed stream by extractive distillation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE788871A (en) * 1971-09-16 1973-03-15 Union Carbide Corp PROCESS OF SEPARATION BY EXTRACTION AND
US3788980A (en) * 1971-12-21 1974-01-29 Union Carbide Corp Process for the separation of aromatic hydrocarbons from a mixed hydrocarbon feedstock
US3779904A (en) * 1971-12-21 1973-12-18 Union Carbide Corp Process for the separation of aromatic hydrocarbons from a mixed hydrocarbon feedstock

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009154477A1 (en) * 2008-06-15 2009-12-23 Craig Nazzer Process for separating solids from valuable or harmful liquids by vaporisation
US8652304B2 (en) 2008-06-15 2014-02-18 Prime Services Trustee Limited Process for separating solids from valuable or harmful liquids by vaporisation
AU2009260960B2 (en) * 2008-06-15 2016-01-28 Prime Services Trustee Limited Process for separating solids from valuable or harmful liquids by vaporisation
AU2009260960C1 (en) * 2008-06-15 2016-04-28 Prime Services Trustee Limited Process for separating solids from valuable or harmful liquids by vaporisation

Also Published As

Publication number Publication date
SE7501226L (en) 1975-08-06
AU7787975A (en) 1976-08-05
JPS5747717B2 (en) 1982-10-12
IT1031454B (en) 1979-04-30
AR214037A1 (en) 1979-04-30
BR7402696A (en) 1975-12-09
NL182558C (en) 1988-04-05
NL7501311A (en) 1975-08-07
DE2504639B2 (en) 1977-04-21
FR2259891A1 (en) 1975-08-29
AU502194B2 (en) 1979-07-19
FR2259891B1 (en) 1978-12-29
NL182558B (en) 1987-11-02
BE825173A (en) 1975-08-04
JPS50108226A (en) 1975-08-26
SE409119B (en) 1979-07-30
CA1055876A (en) 1979-06-05
DE2504639A1 (en) 1975-08-07

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930204