US3109782A - Vapor compression distillation process - Google Patents

Vapor compression distillation process Download PDF

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Publication number
US3109782A
US3109782A US554318A US55431855A US3109782A US 3109782 A US3109782 A US 3109782A US 554318 A US554318 A US 554318A US 55431855 A US55431855 A US 55431855A US 3109782 A US3109782 A US 3109782A
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United States
Prior art keywords
stream
still
vapour
temperature
distillation
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Expired - Lifetime
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US554318A
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English (en)
Inventor
Nathan Wilfred Samuel
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BP PLC
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BP PLC
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    • 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
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • B01D1/2803—Special features relating to the vapour to be compressed
    • B01D1/2806—The vapour is divided in at least two streams and only a part of the vapour is compressed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • B01D1/284—Special features relating to the compressed vapour
    • B01D1/2843—The compressed vapour is divided in at least two streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • B01D1/284—Special features relating to the compressed vapour
    • B01D1/2856—The compressed vapour is used for heating a reboiler or a heat exchanger outside an evaporator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • B01D1/289—Compressor features (e.g. constructions, details, cooling, lubrication, driving systems)
    • 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
    • B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • B01D3/322—Reboiler specifications

Definitions

  • VAPOR COMPRESSION DISTILLATION PROCESS Filed Dec. 20, 1955 //VV5/v we W/L FEEO 522/7051.
  • New/my A fr ENE r5 United States Patent 3,109,782 VAPOR COMPRESSION DISTILLATION PROCESS Wilfred Samuel Nathan, Sunbury-on-Thames, England, assignor to The British Petroleum Company Limited, London, England, a British joint-stock corporation Filed Dec. 20, 1955, Ser. No. 554,318 Claims priority, application Great Britain Dec. 30, 1954 5 Claims. (Cl. 202-75)
  • This invention relates to an improved method for use in evaporator and/ or distillation systems.
  • a process which comprises distilling or evaporating a volatile liquid in a still, with recovery of a vapour phase fraction, dividing said traction into a first stream and a second stream, condensing said first stream, pumping the condensate through a heater wherein said condensate is vaporised to yield heated vapour at a temperature and pressure respectively above the temperature and pressure or said vapour phase fraction and thereafter blending said heated vapour with said second stream, under conditions such that the back pressure exerted by the blend or by said heated vapour upon said second stream is insuflicient to stop or reverse the flow of said second stream, and condensing said blend by indirect heat exchange with a stream of colder fluid medium being fed to said still.
  • the stream to be fed to said still is a liquid reboiler stream taken from the base of said still.
  • temperature diilerence between the base of said still and said vapour phase fraction should be small, preferably less than 5 C.
  • part of the vapour phase fraction after heat exchange with a reiboiler stream will be returned to the still as reflux preferably after passing the reflux through a further heat exchanger in which its temperature is adjusted to the required still temperature before being returned to the still.
  • the heated vapour is blended with said second stream by employing said heated vapour as the high pressure feed to a Venturi type injector to which said second stream is drawn as a low pressure stream.
  • an apparatus for obtaining from a condensable vapour its latent heat of condensation comprising a condenser capable of receiving and condensing part of a continuous stream of said condensalble vapour, a pump adapted to pass condensate at increased pressure to a heater, said heater being adapted to convert said condensate to heated vapour at a temperature above the temperature of said continuous stream ocE condensable vapour, a Venturi type injector adapted to blend said heated vapour with a further part of said continuous stream of condensable vapour and a heat exchanger connected to said injector and adapted to pass the blend in indirect heat exchange with a colder fluid medium.
  • the Venturi type injector is a multi-stage injector.
  • a distillation or evaporator system comprising an apparatus as described above for obtaining from a condensable vapour its latent heat of condensation, and a distillation or evaporator still adapted to deliver a continuous stream of condensable vapour.
  • the still reboiler unit consists of the heat exchanger of the apparatus described above.
  • liquids is used herein with reference to substances which are in the liquid phase under the conditions of operating the still.
  • Feedstock is introduced by line 1 to column 2 from which an overhead fraction is Withdrawn by line 3.
  • Part of the overhead vapours are condensed in heat exchanger 13 and pass to surge tank 14, from which condensate is pumped by pump 15 to heater 1-6.
  • heater 16 heated and pressurised vapours are passed to injector 17 through which is drawn the remainder of the overhead vapours via line 18.
  • the blended vapours are passed by line 19 to heat exchanger 11 in which a substantial proportion are condensed.
  • the temperature of the overhead fraction is thereafter adjusted to the required distillation recycle temperature in heat exchanger 4 and passed to surge tank 5.
  • Product is withdrawn by line 7, the re mainder of the overhead fraction being recycled to the column head by line 6.
  • the heat exchanger receives a distillation reboiler stream by line 8, the rob-oiled fraction being returned by line 9'.
  • the method hereinbefore described is, in general, particularly suitable for the treatment of any feedstock by distillation or evaporation wherein the temperature difference between column head and column base is small.
  • the method or this invention is especially suitable for removing a solvent from a less volatile material, as for instance in solvent refining, solvent dewaxing and solvent deasphalting, and also has applications in the processing of mineral oil, for example petroleum and its products, alcohols and essential oils.
  • a process according to claim 1, wherein said stream to be tied to said still is a liquid reboiler stream taken 2 from the base of said still.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
US554318A 1954-12-30 1955-12-20 Vapor compression distillation process Expired - Lifetime US3109782A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37621/54A GB797045A (en) 1954-12-30 1954-12-30 Improvements in or relating to a method and apparatus for use in evaporator and/or distillation system

Publications (1)

Publication Number Publication Date
US3109782A true US3109782A (en) 1963-11-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
US554318A Expired - Lifetime US3109782A (en) 1954-12-30 1955-12-20 Vapor compression distillation process

Country Status (5)

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US (1) US3109782A (enrdf_load_stackoverflow)
BE (1) BE544053A (enrdf_load_stackoverflow)
FR (1) FR1139071A (enrdf_load_stackoverflow)
GB (1) GB797045A (enrdf_load_stackoverflow)
NL (2) NL203225A (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3261329A (en) * 1965-09-20 1966-07-19 Calumet & Hecla Method and apparatus for heating water in tubing without scaling
US3288685A (en) * 1962-08-17 1966-11-29 Joseph Kaye & Company Multiple-phase ejector distillation apparatus and desalination process
US3349007A (en) * 1963-03-30 1967-10-24 Inst Chemii Ogolnej Distillastion process for recovery of oxidation product of cyclohexane
EP0011334A1 (de) * 1978-11-13 1980-05-28 Process Engineering Company SA Verfahren zur kontinuierlichen Herstellung von Alkohol durch Fermentation
US4444571A (en) * 1983-03-07 1984-04-24 Bend Research, Inc. Energy-efficient process for the stripping of gases from liquids
US4587370A (en) * 1985-06-05 1986-05-06 Uop Inc. Aromatic hydrocarbon alkylation process product recovery method
FR2583988A1 (fr) * 1985-06-28 1987-01-02 Inst Francais Du Petrole Procede de distillation avec recuperation d'energie par recompression de vapeur a l'aide d'un ejecteur
EP1923354A2 (de) * 2006-11-07 2008-05-21 Eco-Solar GmbH Verfahren und Anlage zur Entsalzung von salzhaltigem Rohwasser
ITPR20130058A1 (it) * 2013-07-03 2015-01-04 Filter Ct S R L Dispositivo e metodo di estrazione di acqua da una miscela di acqua e lubrificante
CN104958917A (zh) * 2015-06-01 2015-10-07 杜明生 空气介质预热启动mvr蒸发系统
US10821374B2 (en) 2016-11-18 2020-11-03 Halliburton Energy Services, Inc. Increasing accuracy of measurements using mud retorts by maximizing recovery of vapors
CN115992403A (zh) * 2021-10-19 2023-04-21 中国石油化工股份有限公司 一种溶剂汽化方法、汽化系统与应用

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL271425A (enrdf_load_stackoverflow) * 1960-11-26
US3256355A (en) * 1965-03-24 1966-06-14 Halcon International Inc Process for preparing styrene and recovery of ethylbenzene
US4992143A (en) * 1989-06-09 1991-02-12 Mobay Corporation Continuous process for the separation of a partially water soluble component from a slurry

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1213596A (en) * 1915-11-23 1917-01-23 William L De Baufre Evaporator.
CH182711A (fr) * 1934-03-09 1936-02-29 Distillation Dynamique Societe Procédé de chauffage d'un ensemble d'appareils de distillation.
US2127004A (en) * 1936-10-07 1938-08-16 Universal Oil Prod Co Method of fractionation
US2324663A (en) * 1940-03-30 1943-07-20 Aiton & Company Ltd Apparatus for distilling liquids
US2338595A (en) * 1939-03-31 1944-01-04 Standard Oil Dev Co Distillation process
GB614309A (en) * 1945-04-19 1948-12-14 Anglo Iranian Oil Co Ltd Improvements relating to fractionation applied to petroleum and other hydrocarbon feedstocks
US2637684A (en) * 1945-05-08 1953-05-05 Badger Mfg Company Engine-driven vapor compression distillation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1213596A (en) * 1915-11-23 1917-01-23 William L De Baufre Evaporator.
CH182711A (fr) * 1934-03-09 1936-02-29 Distillation Dynamique Societe Procédé de chauffage d'un ensemble d'appareils de distillation.
US2127004A (en) * 1936-10-07 1938-08-16 Universal Oil Prod Co Method of fractionation
US2338595A (en) * 1939-03-31 1944-01-04 Standard Oil Dev Co Distillation process
US2324663A (en) * 1940-03-30 1943-07-20 Aiton & Company Ltd Apparatus for distilling liquids
GB614309A (en) * 1945-04-19 1948-12-14 Anglo Iranian Oil Co Ltd Improvements relating to fractionation applied to petroleum and other hydrocarbon feedstocks
US2637684A (en) * 1945-05-08 1953-05-05 Badger Mfg Company Engine-driven vapor compression distillation

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288685A (en) * 1962-08-17 1966-11-29 Joseph Kaye & Company Multiple-phase ejector distillation apparatus and desalination process
US3349007A (en) * 1963-03-30 1967-10-24 Inst Chemii Ogolnej Distillastion process for recovery of oxidation product of cyclohexane
US3261329A (en) * 1965-09-20 1966-07-19 Calumet & Hecla Method and apparatus for heating water in tubing without scaling
EP0011334A1 (de) * 1978-11-13 1980-05-28 Process Engineering Company SA Verfahren zur kontinuierlichen Herstellung von Alkohol durch Fermentation
EP0121356A3 (en) * 1983-03-07 1987-01-14 Bend Research, Inc. Energy-efficient process for the stripping of gases from liquids
US4444571A (en) * 1983-03-07 1984-04-24 Bend Research, Inc. Energy-efficient process for the stripping of gases from liquids
US4587370A (en) * 1985-06-05 1986-05-06 Uop Inc. Aromatic hydrocarbon alkylation process product recovery method
FR2583988A1 (fr) * 1985-06-28 1987-01-02 Inst Francais Du Petrole Procede de distillation avec recuperation d'energie par recompression de vapeur a l'aide d'un ejecteur
EP0210888A1 (fr) * 1985-06-28 1987-02-04 Institut Français du Pétrole Procédé de distillation avec récupération d'énergie par recompression de vapeur à l'aide d'un éjecteur
EP1923354A2 (de) * 2006-11-07 2008-05-21 Eco-Solar GmbH Verfahren und Anlage zur Entsalzung von salzhaltigem Rohwasser
ITPR20130058A1 (it) * 2013-07-03 2015-01-04 Filter Ct S R L Dispositivo e metodo di estrazione di acqua da una miscela di acqua e lubrificante
CN104958917A (zh) * 2015-06-01 2015-10-07 杜明生 空气介质预热启动mvr蒸发系统
CN104958917B (zh) * 2015-06-01 2018-10-30 杜明生 空气介质预热启动mvr蒸发系统
US10821374B2 (en) 2016-11-18 2020-11-03 Halliburton Energy Services, Inc. Increasing accuracy of measurements using mud retorts by maximizing recovery of vapors
CN115992403A (zh) * 2021-10-19 2023-04-21 中国石油化工股份有限公司 一种溶剂汽化方法、汽化系统与应用

Also Published As

Publication number Publication date
GB797045A (en) 1958-06-25
NL91278C (enrdf_load_stackoverflow)
BE544053A (enrdf_load_stackoverflow)
FR1139071A (fr) 1957-06-25
NL203225A (enrdf_load_stackoverflow)

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