BR9503333A - Método de vaporização de um liquido trocador de calor e sistema de duplas colunas - Google Patents

Método de vaporização de um liquido trocador de calor e sistema de duplas colunas

Info

Publication number
BR9503333A
BR9503333A BR9503333A BR9503333A BR9503333A BR 9503333 A BR9503333 A BR 9503333A BR 9503333 A BR9503333 A BR 9503333A BR 9503333 A BR9503333 A BR 9503333A BR 9503333 A BR9503333 A BR 9503333A
Authority
BR
Brazil
Prior art keywords
heat exchanger
column system
double column
vaporization method
exchanger liquid
Prior art date
Application number
BR9503333A
Other languages
English (en)
Inventor
Vijayaraghavan Srinivasan
Michael James Lockett
John Harold Ziemer
Original Assignee
Praxair Technology Inc
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 Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of BR9503333A publication Critical patent/BR9503333A/pt

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04406Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
    • F25J3/04412Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D3/00Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14Fractional distillation or use of a fractionation or rectification column
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D3/00Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14Fractional distillation or use of a fractionation or rectification column
    • B01D3/32Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • B01D3/322Reboiler specifications
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J5/00Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
    • F25J5/002Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger
    • F25J5/005Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger in a reboiler-condenser, e.g. within a column
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28CHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C3/00Other direct-contact heat-exchange apparatus
    • F28C3/06Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
    • F28C3/08Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour with change of state, e.g. absorption, evaporation, condensation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0062Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • F28D9/0068Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2235/00Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/50Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being oxygen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2245/00Processes or apparatus involving steps for recycling of process streams
    • F25J2245/50Processes or apparatus involving steps for recycling of process streams the recycled stream being oxygen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2250/00Details related to the use of reboiler-condensers
    • F25J2250/04Down-flowing type boiler-condenser, i.e. with evaporation of a falling liquid film
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/32Details on header or distribution passages of heat exchangers, e.g. of reboiler-condenser or plate heat exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0033Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cryogenic applications
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00Refrigeration
    • Y10S62/902Apparatus
    • Y10S62/903Heat exchange structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
BR9503333A 1994-08-05 1995-07-14 Método de vaporização de um liquido trocador de calor e sistema de duplas colunas BR9503333A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/286,233 US5438836A (en) 1994-08-05 1994-08-05 Downflow plate and fin heat exchanger for cryogenic rectification

Publications (1)

Publication Number Publication Date
BR9503333A true BR9503333A (pt) 1996-05-21

Family

ID=23097672

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9503333A BR9503333A (pt) 1994-08-05 1995-07-14 Método de vaporização de um liquido trocador de calor e sistema de duplas colunas

Country Status (9)

Country Link
US (3) US5438836A (pt)
EP (1) EP0695921B1 (pt)
JP (1) JP3051662B2 (pt)
KR (1) KR100227238B1 (pt)
CN (1) CN1128343A (pt)
BR (1) BR9503333A (pt)
CA (1) CA2153920A1 (pt)
DE (1) DE69516594T2 (pt)
ES (1) ES2145184T3 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018028995A1 (en) 2016-08-08 2018-02-15 Mahle Metal Leve S/A Diesel fuel pre-filtering system

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5592832A (en) * 1995-10-03 1997-01-14 Air Products And Chemicals, Inc. Process and apparatus for the production of moderate purity oxygen
US5699671A (en) * 1996-01-17 1997-12-23 Praxair Technology, Inc. Downflow shell and tube reboiler-condenser heat exchanger for cryogenic rectification
DE19605500C1 (de) * 1996-02-14 1997-04-17 Linde Ag Vorrichtung und Verfahren zum Verdampfen einer Flüssigkeit
US5755279A (en) * 1996-03-29 1998-05-26 The Boc Group, Inc. Heat exchanger
US5775129A (en) * 1997-03-13 1998-07-07 The Boc Group, Inc. Heat exchanger
GB9705889D0 (en) * 1997-03-21 1997-05-07 Boc Group Plc Heat exchange method and apparatus
US6044902A (en) * 1997-08-20 2000-04-04 Praxair Technology, Inc. Heat exchange unit for a cryogenic air separation system
JP4592125B2 (ja) 1998-10-05 2010-12-01 大陽日酸株式会社 流下液膜式凝縮蒸発器
FR2798599B1 (fr) * 1999-09-21 2001-11-09 Air Liquide Vaporiseur-condenseur a thermosiphon et installation de distillation d'air correspondante
US6237366B1 (en) 2000-04-14 2001-05-29 Praxair Technology, Inc. Cryogenic air separation system using an integrated core
US6295836B1 (en) 2000-04-14 2001-10-02 Praxair Technology, Inc. Cryogenic air separation system with integrated mass and heat transfer
AU9488201A (en) * 2000-09-27 2002-04-08 Idalex Technologies Inc Method and plate apparatus for dew point evaporative cooler
FR2822079B1 (fr) * 2001-03-16 2003-05-16 Air Liquide Procede et installation de production d'oxygene ultra-pur par distillation d'air
US6393866B1 (en) 2001-05-22 2002-05-28 Praxair Technology, Inc. Cryogenic condensation and vaporization system
US6560989B1 (en) * 2002-06-07 2003-05-13 Air Products And Chemicals, Inc. Separation of hydrogen-hydrocarbon gas mixtures using closed-loop gas expander refrigeration
US6666046B1 (en) 2002-09-30 2003-12-23 Praxair Technology, Inc. Dual section refrigeration system
FR2845152B1 (fr) * 2002-10-01 2005-06-17 Air Liquide Echangeur de chaleur a plaques comportant une ailette epaisse, et utilisation d'un tel echangeur de chaleur.
DE10258067A1 (de) * 2002-12-11 2004-07-01 Thyssenkrupp Encoke Gmbh Verfahren und Vorrichtung zur Kühlung von Brüdendämpfen in einer Desorptionskolonne
US7163051B2 (en) * 2003-08-28 2007-01-16 Praxair Technology, Inc. Heat exchanger distributor for multicomponent heat exchange fluid
PE20060221A1 (es) * 2004-07-12 2006-05-03 Shell Int Research Tratamiento de gas natural licuado
US7263859B2 (en) * 2004-12-27 2007-09-04 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and apparatus for cooling a stream of compressed air
US7421856B2 (en) 2005-06-17 2008-09-09 Praxair Technology, Inc. Cryogenic air separation with once-through main condenser
US20070028649A1 (en) * 2005-08-04 2007-02-08 Chakravarthy Vijayaraghavan S Cryogenic air separation main condenser system with enhanced boiling and condensing surfaces
US9476641B2 (en) * 2007-09-28 2016-10-25 Praxair Technology, Inc. Down-flow condenser reboiler system for use in an air separation plant
US8298412B2 (en) * 2008-09-17 2012-10-30 Koch-Glitsch, Lp Structured packing module for mass transfer column and process involving same
FR2938904B1 (fr) * 2008-11-24 2012-05-04 Air Liquide Echangeur de chaleur
KR101011740B1 (ko) * 2009-03-31 2011-02-07 한국해양대학교 산학협력단 모터의 중력 보상기
US8460517B2 (en) * 2009-09-02 2013-06-11 Gtc Technology Us Llc Methods and apparatuses for steam addition to a reboiler coupled to an extractive distillation column for improved extractive distillation
KR101190228B1 (ko) 2010-05-06 2012-10-12 한국과학기술연구원 베벨 기어를 이용한 중력 보상 기구 및 방법 및 이를 이용하는 로봇암
RU2528235C1 (ru) * 2010-09-29 2014-09-10 Эр Продактс Энд Кемикалз, Инк. Перфорированные ребра теплообменника
US20130008186A1 (en) * 2011-07-07 2013-01-10 Newman Michael D Cryogen heat plate heat exchanger
CN102650491B (zh) * 2012-05-10 2013-10-16 西安交通大学 空分板翅型膜式主冷液体分布器
CN102650492A (zh) * 2012-05-10 2012-08-29 西安交通大学 空分板翅型降膜式冷凝蒸发器
CN102840885B (zh) * 2012-09-17 2015-09-16 南京工业大学 风洞实验冷凝水流量测量装置
FR3032521B1 (fr) * 2015-02-06 2017-02-17 Air Liquide Echangeur de chaleur comprenant un dispositif de distribution de liquide frigorigene
CN105546935A (zh) * 2016-02-05 2016-05-04 江苏建筑职业技术学院 空分膜式主冷液体分布器
DE102017216819B4 (de) * 2017-09-22 2021-03-11 Hanon Systems Abgaskühler und Abgasrückführsystem mit einem Abgaskühler
RU2686942C1 (ru) * 2018-08-29 2019-05-06 Публичное акционерное общество криогенного машиностроения (ПАО "Криогенмаш") Узел ректификации установки разделения воздуха
US11774189B2 (en) * 2020-09-29 2023-10-03 Air Products And Chemicals, Inc. Heat exchanger, hardway fin arrangement for a heat exchanger, and methods relating to same

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152432B (de) * 1962-04-21 1963-08-08 Linde Eismasch Ag Platten-Kondensator-Verdampfer, insbesondere fuer Gas- und Luftzerleger
US3568462A (en) * 1967-11-22 1971-03-09 Mc Donnell Douglas Corp Fractionating device
USRE33026E (en) * 1983-06-24 1989-08-22 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and device for vaporizing a liquid by heat exchange with a second fluid and their application in an air distillation installation
FR2547898B1 (fr) * 1983-06-24 1985-11-29 Air Liquide Procede et dispositif pour vaporiser un liquide par echange de chaleur avec un deuxieme fluide, et leur application a une installation de distillation d'air
JPS60253782A (ja) * 1984-05-30 1985-12-14 日本酸素株式会社 大型空気分離装置用凝縮器
GB8719349D0 (en) * 1987-08-14 1987-09-23 Boc Group Ltd Liquefied gas boilers
JP2641497B2 (ja) * 1988-05-27 1997-08-13 株式会社日立製作所 パターン形成方法
WO1990000243A1 (en) * 1988-07-04 1990-01-11 Japan Oxygen Co., Ltd. Condenser/evaporator
FR2650379B1 (fr) * 1989-07-28 1991-10-18 Air Liquide Appareil de vaporisation-condensation pour double colonne de distillation d'air, et installation de distillation d'air comportant un tel appareil
GB9016766D0 (en) * 1990-07-31 1990-09-12 Boc Group Plc Boiling liquefied gas
FR2665755B1 (fr) * 1990-08-07 1993-06-18 Air Liquide Appareil de production d'azote.
EP0665042A2 (fr) * 1990-12-17 1995-08-02 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Colonne de distillation d'air à garnissage ondulé-croisé
US5122174A (en) * 1991-03-01 1992-06-16 Air Products And Chemicals, Inc. Boiling process and a heat exchanger for use in the process
FR2685071B1 (fr) * 1991-12-11 1996-12-13 Air Liquide Echangeur de chaleur indirect du type a plaques.
FR2690231B1 (fr) * 1992-04-17 1994-06-03 Air Liquide Echangeur de chaleur a ruissellement et installation de distillation d'air comportant un tel echangeur.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018028995A1 (en) 2016-08-08 2018-02-15 Mahle Metal Leve S/A Diesel fuel pre-filtering system

Also Published As

Publication number Publication date
ES2145184T3 (es) 2000-07-01
EP0695921A1 (en) 1996-02-07
CN1128343A (zh) 1996-08-07
JPH0861868A (ja) 1996-03-08
KR960008259A (ko) 1996-03-22
KR100227238B1 (ko) 1999-11-01
DE69516594D1 (de) 2000-06-08
EP0695921B1 (en) 2000-05-03
US5438836A (en) 1995-08-08
CA2153920A1 (en) 1996-02-06
US5537840A (en) 1996-07-23
DE69516594T2 (de) 2000-09-21
JP3051662B2 (ja) 2000-06-12
US5724834A (en) 1998-03-10

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