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GB937369A - The separation of aromatic hydrocarbons from mixtures containing the same - Google Patents

The separation of aromatic hydrocarbons from mixtures containing the same

Info

Publication number
GB937369A
GB937369A GB268962A GB268962A GB937369A GB 937369 A GB937369 A GB 937369A GB 268962 A GB268962 A GB 268962A GB 268962 A GB268962 A GB 268962A GB 937369 A GB937369 A GB 937369A
Authority
GB
United Kingdom
Prior art keywords
line
countersolvent
separated
volume
solvent
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
GB268962A
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of GB937369A publication Critical patent/GB937369A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0488—Flow sheets
    • 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
    • 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
    • C10G21/02—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents with two or more solvents, which are introduced or withdrawn separately
    • C10G21/04—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents with two or more solvents, which are introduced or withdrawn separately by introducing simultaneously at least two immiscible solvents counter-current to each other
    • 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
    • C10G21/06—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents characterised by the solvent used
    • C10G21/12—Organic compounds only
    • C10G21/20—Nitrogen-containing compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

<PICT:0937369/III/1> Aromatic hydrocarbons are separated from non-aromatic hydrocarbons by a liquid-liquid countercurrent solvent extraction at 10 DEG -40 DEG C. with aqueous N-methylpyrrolidone containing 5-25% by volume of water (based on the total volume) and employing as countersolvent a paraffinic hydrocarbon fraction boiling below 60 DEG C., the volume of solvent being 4-8 times and the volume of countersolvent 0,2-0,8 times that of the introduced hydrocarbons. The hydrocarbons are hydrodesulphurised at 2 and a BTX fraction separated in still 3. This is introduced into extraction system 7 containing 20-30 theoretical stages at the 8-18th stage by line 4. The solvent enters at the first stage by line 11 and the countersolvent at the last by line 18. Raffinate and countersolvent are separated in still 12, the countersolvent being recycled by line 14. The extract is distilled in still 10 to recover solvent for recycle by line 11. The aromatics are separated in stills 17 and 22 into benzene (line 20) and toluene (line 24) and intermediate fractions containing olefins recycled to the extraction by line 18 or 26. Part of the extract may be recycled direct by line 15.
GB268962A 1961-01-26 1962-01-24 The separation of aromatic hydrocarbons from mixtures containing the same Expired GB937369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM0047796 1961-01-26

Publications (1)

Publication Number Publication Date
GB937369A true GB937369A (en) 1963-09-18

Family

ID=7306025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB268962A Expired GB937369A (en) 1961-01-26 1962-01-24 The separation of aromatic hydrocarbons from mixtures containing the same

Country Status (3)

Country Link
DE (1) DE1418973A1 (en)
DK (1) DK115764B (en)
GB (1) GB937369A (en)

Also Published As

Publication number Publication date
DE1418973A1 (en) 1968-12-19
DK115764B (en) 1969-11-10

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