GB1343621A - Solvent recovery process - Google Patents

Solvent recovery process

Info

Publication number
GB1343621A
GB1343621A GB1343621DA GB1343621A GB 1343621 A GB1343621 A GB 1343621A GB 1343621D A GB1343621D A GB 1343621DA GB 1343621 A GB1343621 A GB 1343621A
Authority
GB
United Kingdom
Prior art keywords
raffinate
extraction
aromatics
recovering
water
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
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.)
Universal Oil Products Co
Original Assignee
Universal Oil Products 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 Universal Oil Products Co filed Critical Universal Oil Products Co
Publication of GB1343621A publication Critical patent/GB1343621A/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
    • C10G21/28—Recovery of used solvent

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

1343621 Recovering extractive solvents from non-aromatic raffinates UNIVERSAL OIL PRODUCTS CO 15 June 1971 27878/71 Heading C5E In a process for recovering a water-soluble extractive solvent from the raffinate 1 from the liquid-liquid extraction of aromatics from hydrocarbon mixtures by washing with water 4 in an extraction tower 2 provided with stationary perforated decks 3, the raffinate is passed through the perforations at a hole velocity greater than 0À6 m./sec. A portion 7 of the washed raffinate can be recycled to the tower 2 through lines 11 and/or 14. A list of conventional extractive solvents which can be recovered is given; in an example the raffinate from the extraction of benzene, toluene, xylene and C 9+ aromatics from a hydrocarbon feed using sulpholane is treated.
GB1343621D 1971-06-15 1971-06-15 Solvent recovery process Expired GB1343621A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2787871 1971-06-15

Publications (1)

Publication Number Publication Date
GB1343621A true GB1343621A (en) 1974-01-16

Family

ID=10266768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1343621D Expired GB1343621A (en) 1971-06-15 1971-06-15 Solvent recovery process

Country Status (1)

Country Link
GB (1) GB1343621A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112933658A (en) * 2021-01-25 2021-06-11 北方华锦化学工业股份有限公司 Method and device for reducing solvent in raffinate oil of aromatic extraction device
CN114933521A (en) * 2022-06-01 2022-08-23 呈和科技股份有限公司 Process method for recycling and regenerating aromatic aldehyde

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112933658A (en) * 2021-01-25 2021-06-11 北方华锦化学工业股份有限公司 Method and device for reducing solvent in raffinate oil of aromatic extraction device
CN114933521A (en) * 2022-06-01 2022-08-23 呈和科技股份有限公司 Process method for recycling and regenerating aromatic aldehyde
CN114933521B (en) * 2022-06-01 2023-12-26 呈和科技股份有限公司 Process method for recycling and reproducing aromatic aldehyde

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee