GB740764A - Improvements in fractionating towers for the vacuum distillation of heavy hydrocarbon oils - Google Patents

Improvements in fractionating towers for the vacuum distillation of heavy hydrocarbon oils

Info

Publication number
GB740764A
GB740764A GB4024/53A GB402453A GB740764A GB 740764 A GB740764 A GB 740764A GB 4024/53 A GB4024/53 A GB 4024/53A GB 402453 A GB402453 A GB 402453A GB 740764 A GB740764 A GB 740764A
Authority
GB
United Kingdom
Prior art keywords
tower
liquid
line
withdrawn
section
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
GB4024/53A
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering 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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB740764A publication Critical patent/GB740764A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/16—Fractionating columns in which vapour bubbles through liquid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

In order to withdraw a liquid sidestream from a plate-type fractionating tower, the tower is provided, below one of the plates 2, with an annular baffle 25 having an up <PICT:0740764/III/1> standing cylindrical flange 26 which has an opening through which liquid flows down into a pan 21 which is designed and mounted so that it is spaced apart from the walls of the tower; and the liquid is withdrawn from the pan through a conduit 24 passing through the wall of the tower. The opening in the baffle is provided with a dependent lip 27. The pan shown, which is circular and has a sump 23, is freely supported on I-beams 22. The liquid is thereby collected and withdrawn without entrainment in the vapours passing up the tower. The tower shown is suitable for the fractionation under vacuum of the residue left after distillation of a petroleum oil at atmospheric pressure. In this case, part of the liquid withdrawn through line 24 is supplied to the top of the tower, as cooling liquid, through line 10. Drawoff conduit 24 is provided with a valve 24a controlled by differential pressure controller 28 which is connected both to conduit 24 and the tower. The tower is built-up from four sections A, B, C, and D. Section A contains bubble cap plates 2, and is supplied with condensing liquid through line 1). Section B, which is provided with disc and doughnut elements 3, 4, is used as a vapour-washing section to remove entrained residual liquid; washing liquid being supplied through line 7 to the upper surface of disc 3, and being collected in pan 31 and withdrawn through line 8. Section C is a flash zone which is supplied through inlet-line 5 with the material-to-be-fractionated after it has been heated in a pipe still (not shown). Section D is a stripping section which is provided with plates 6, and is supplied with stripping steam through line 12. Uncondensed vapours are withdrawn from the top of the tower through conduit 9, and residual liquid is withdrawn from the base through line 11. Liquid entrainment may also be removed by wire-mesh screens between sections C and B, and between sections B and A.
GB4024/53A 1952-03-25 1953-02-12 Improvements in fractionating towers for the vacuum distillation of heavy hydrocarbon oils Expired GB740764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US740764XA 1952-03-25 1952-03-25

Publications (1)

Publication Number Publication Date
GB740764A true GB740764A (en) 1955-11-16

Family

ID=22117567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4024/53A Expired GB740764A (en) 1952-03-25 1953-02-12 Improvements in fractionating towers for the vacuum distillation of heavy hydrocarbon oils

Country Status (2)

Country Link
FR (1) FR1075722A (en)
GB (1) GB740764A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1088576A1 (en) * 1999-09-29 2001-04-04 Nippon Shokubai Co., Ltd. Liquid withdrawing tray for purification column, purification column and method for purification
WO2008141784A2 (en) * 2007-05-21 2008-11-27 Uhde Gmbh Method for cooling a process gas comprising hydrogen and water vapor from a device for obtaining hydrogen
US8172972B2 (en) 2007-05-01 2012-05-08 Kingspan Research And Developments Limited Panel
CN105999753B (en) * 2016-06-30 2018-06-08 江苏永大化工机械有限公司 Steam solidifying integral type purifying ethylene glycol tower

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117582684B (en) * 2024-01-19 2024-03-29 大庆亿鑫化工股份有限公司 Extraction element for production industrial alkane cleaner

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1088576A1 (en) * 1999-09-29 2001-04-04 Nippon Shokubai Co., Ltd. Liquid withdrawing tray for purification column, purification column and method for purification
US6372944B1 (en) 1999-09-29 2002-04-16 Nippon Shokubai Co., Ltd. Liquid withdrawing tray for purification column, purification column, and method for purification
US8172972B2 (en) 2007-05-01 2012-05-08 Kingspan Research And Developments Limited Panel
WO2008141784A2 (en) * 2007-05-21 2008-11-27 Uhde Gmbh Method for cooling a process gas comprising hydrogen and water vapor from a device for obtaining hydrogen
WO2008141784A3 (en) * 2007-05-21 2009-02-12 Uhde Gmbh Method for cooling a process gas comprising hydrogen and water vapor from a device for obtaining hydrogen
CN105999753B (en) * 2016-06-30 2018-06-08 江苏永大化工机械有限公司 Steam solidifying integral type purifying ethylene glycol tower

Also Published As

Publication number Publication date
FR1075722A (en) 1954-10-19

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