ES2144571T3 - Metodo de separacion de gases atmosfericos. - Google Patents

Metodo de separacion de gases atmosfericos.

Info

Publication number
ES2144571T3
ES2144571T3 ES95301381T ES95301381T ES2144571T3 ES 2144571 T3 ES2144571 T3 ES 2144571T3 ES 95301381 T ES95301381 T ES 95301381T ES 95301381 T ES95301381 T ES 95301381T ES 2144571 T3 ES2144571 T3 ES 2144571T3
Authority
ES
Spain
Prior art keywords
column
packaging
steam flow
separation
atmospheric gases
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 - Lifetime
Application number
ES95301381T
Other languages
English (en)
Other versions
ES2144571T5 (es
Inventor
Kevin Mckeigue
Ramachandran Krishnamurthy
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.)
Linde LLC
Original Assignee
BOC Group 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22780578&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2144571(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BOC Group Inc filed Critical BOC Group Inc
Application granted granted Critical
Publication of ES2144571T3 publication Critical patent/ES2144571T3/es
Publication of ES2144571T5 publication Critical patent/ES2144571T5/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F25J3/044Processes 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 single pressure main column system only
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/32Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
    • 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
    • F25J3/04248Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04284Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
    • 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
    • F25J3/04763Start-up or control of the process; Details of the apparatus used
    • F25J3/04866Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04896Details of columns, e.g. internals, inlet/outlet devices
    • F25J3/04909Structured packings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/326Mathematical modelling
    • 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
    • F25J2200/00Processes or apparatus using separation by rectification
    • F25J2200/74Refluxing the column with at least a part of the partially condensed overhead gas
    • 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
    • F25J2240/00Processes or apparatus involving steps for expanding of process streams
    • F25J2240/40Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval
    • F25J2240/48Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval the fluid being oxygen enriched compared to air, e.g. "crude 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
    • F25J2290/00Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/10Mathematical formulae, modeling, plot or curves; Design methods
    • 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
    • F25J2290/12Particular process parameters like pressure, temperature, ratios

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

SE DESCRIBE UN METODO PARA SEPARAR CRIOGENICAMENTE UNA MEZCLA DE GASES ATMOSFERICOS DENTRO DE UNA COLUMNA DE DESTILACION. DE ACUERDO CON EL METODO, LAS FASES LIQUIDAS Y GASEOSAS DE LA MEZCLA DE GASES ATMOSFERICOS QUE DEBEN SEPARARSE, SON PASADAS CONTRA-CORRIENTE A TRAVES DE UNA EMPAQUETADURA ESTRUCTURADA. LA COLUMNA ES ACCIONADA A UNA PRESION MAYOR DE 2 BARS Y A UN CAUDAL DE VAPOR MENOR QUE EL CAUDAL DE VAPOR CRITICO AL CUAL LA COLUMNA SE LLENA, Y QUE VARIA CON EL CAUDAL DE LIQUIDO. EL CAUDAL DE VAPOR CRITICO Y MINIMO CON LOS CUALES SE LLENA LA COLUMNA, SE ESTABLECEN DE ACUERDO CON DATOS DE EXPERIMENTACION PARA LA UTILIZACION MAXIMA DE LA COLUMNA EN TERMINOS DE VOLUMEN DE EMPAQUETAMIENTO O CAPACIDAD DE TRATAMIENTO DE LA COLUMNA. LA REALIZACION DE LA EMPAQUETADURA ESTRUCTURADA MEJORA SORPRENDENTEMENTE CON EL INCREMENTO DE LA PRESION. POR CONSIGUIENTE, LAS COLUMNAS DE UNA FUNCION DADA (EJ. CAPACIDAD) PUEDEN SER PRODUCIDAS UTILIZANDO UN VOLUMEN MENOR DE EMPAQUETADURA ESTRUCTURADA QUE EL QUE HASIDO PREDICHO TEORICAMENTE. ADICIONALMENTE, EL CUMPLIMIENTO DE LA SEPARACION EN TERMINOS DE HETP, SE INCREMENTA CON EL AUMENTO DE LA PRESION YA QUE LA ALTURA EN TECNICAS PREVIAS DE LA EMPAQUETADURA ESTRUCTURADA PUEDE UTILIZARSE PARA OBTENER UNA SEPARACION PARTICULAR.
ES95301381T 1994-03-11 1995-03-03 Metodo de separacion de gases atmosfericos. Expired - Lifetime ES2144571T5 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US209851 1994-03-11
US08/209,851 US5396772A (en) 1994-03-11 1994-03-11 Atmospheric gas separation method

Publications (2)

Publication Number Publication Date
ES2144571T3 true ES2144571T3 (es) 2000-06-16
ES2144571T5 ES2144571T5 (es) 2007-09-16

Family

ID=22780578

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95301381T Expired - Lifetime ES2144571T5 (es) 1994-03-11 1995-03-03 Metodo de separacion de gases atmosfericos.

Country Status (17)

Country Link
US (1) US5396772A (es)
EP (1) EP0671594B2 (es)
JP (1) JP3678787B2 (es)
CN (1) CN1103040C (es)
AU (1) AU679600B2 (es)
CA (1) CA2140561C (es)
CZ (4) CZ286223B6 (es)
DE (1) DE69515068T3 (es)
ES (1) ES2144571T5 (es)
FI (1) FI120014B (es)
HU (1) HU214052B (es)
MY (1) MY114260A (es)
NO (1) NO307905B1 (es)
PL (1) PL180037B1 (es)
SK (1) SK282908B6 (es)
TW (1) TW262392B (es)
ZA (1) ZA951191B (es)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9412182D0 (en) * 1994-06-17 1994-08-10 Boc Group Plc Air separation
IL115348A (en) * 1994-10-25 1999-11-30 Boc Group Inc Method and apparatus for air separation to produce nitrogen
US5507148A (en) * 1994-10-25 1996-04-16 The Boc Group, Inc. Air separation method and apparatus to produce nitrogen
US5560763A (en) * 1995-05-24 1996-10-01 The Boc Group, Inc. Integrated air separation process
US5582034A (en) * 1995-11-07 1996-12-10 The Boc Group, Inc. Air separation method and apparatus for producing nitrogen
JPH09264667A (ja) * 1996-03-27 1997-10-07 Teisan Kk 超高純度窒素及び酸素の製造装置
GB9623519D0 (en) * 1996-11-11 1997-01-08 Boc Group Plc Air separation
US5956974A (en) * 1998-01-22 1999-09-28 Air Products And Chemicals, Inc. Multiple expander process to produce oxygen
US5907959A (en) * 1998-01-22 1999-06-01 Air Products And Chemicals, Inc. Air separation process using warm and cold expanders
US5901576A (en) * 1998-01-22 1999-05-11 Air Products And Chemicals, Inc. Single expander and a cold compressor process to produce oxygen
US5934106A (en) * 1998-01-27 1999-08-10 The Boc Group, Inc. Apparatus and method for producing nitrogen
US6128922A (en) * 1999-05-21 2000-10-10 The Boc Group, Inc. Distillation method and column
US6279345B1 (en) 2000-05-18 2001-08-28 Praxair Technology, Inc. Cryogenic air separation system with split kettle recycle
GB0119500D0 (en) * 2001-08-09 2001-10-03 Boc Group Inc Nitrogen generation
FR2875588B1 (fr) * 2004-09-21 2007-04-27 Air Liquide Procede de separation d'air par distillation cryogenique
JP4515225B2 (ja) * 2004-11-08 2010-07-28 大陽日酸株式会社 窒素製造方法及び装置
FR2911391A1 (fr) * 2007-01-16 2008-07-18 Air Liquide Procede de separation utilisant une colonne a garnissage structure ondule-croise pour la separation d'un melange de gaz et colonne adaptee a etre utilisee pour le procede
US20110214453A1 (en) * 2008-08-14 2011-09-08 Linde Aktiengesellschaft Process and device for cryogenic air fractionation
US20150168056A1 (en) * 2013-12-17 2015-06-18 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method For Producing Pressurized Gaseous Oxygen Through The Cryogenic Separation Of Air
CN106076240B (zh) * 2016-07-13 2018-06-26 盐城工学院 一种生物滴滤塔用的流线型孔道的脉冲填料

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4836836A (en) * 1987-12-14 1989-06-06 Air Products And Chemicals, Inc. Separating argon/oxygen mixtures using a structured packing
US4871382A (en) * 1987-12-14 1989-10-03 Air Products And Chemicals, Inc. Air separation process using packed columns for oxygen and argon recovery
US4838913A (en) * 1988-02-10 1989-06-13 Union Carbide Corporation Double column air separation process with hybrid upper column
DE3840506A1 (de) * 1988-12-01 1990-06-07 Linde Ag Verfahren und vorrichtung zur luftzerlegung
US5019144A (en) * 1990-01-23 1991-05-28 Union Carbide Industrial Gases Technology Corporation Cryogenic air separation system with hybrid argon column
US4994098A (en) * 1990-02-02 1991-02-19 Air Products And Chemicals, Inc. Production of oxygen-lean argon from air
US5076823A (en) * 1990-03-20 1991-12-31 Air Products And Chemicals, Inc. Process for cryogenic air separation
US5077978A (en) * 1990-06-12 1992-01-07 Air Products And Chemicals, Inc. Cryogenic process for the separation of air to produce moderate pressure nitrogen
US5049174A (en) * 1990-06-18 1991-09-17 Air Products And Chemicals, Inc. Hybrid membrane - cryogenic generation of argon concurrently with nitrogen
US5098456A (en) * 1990-06-27 1992-03-24 Union Carbide Industrial Gases Technology Corporation Cryogenic air separation system with dual feed air side condensers
US5148680A (en) * 1990-06-27 1992-09-22 Union Carbide Industrial Gases Technology Corporation Cryogenic air separation system with dual product side condenser
US5108476A (en) * 1990-06-27 1992-04-28 Union Carbide Industrial Gases Technology Corporation Cryogenic air separation system with dual temperature feed turboexpansion
US5100448A (en) * 1990-07-20 1992-03-31 Union Carbide Industrial Gases Technology Corporation Variable density structured packing cryogenic distillation system
EP0664144A2 (fr) * 1990-12-17 1995-07-26 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Colonne de distillation d'air à garnissage ondulé-croisé
US5132056A (en) * 1991-05-28 1992-07-21 Union Carbide Industrial Gases Technology Corporation Structured column packing with improved turndown and method
US5289688A (en) * 1991-11-15 1994-03-01 Air Products And Chemicals, Inc. Inter-column heat integration for multi-column distillation system
US5197296A (en) * 1992-01-21 1993-03-30 Praxair Technology, Inc. Cryogenic rectification system for producing elevated pressure product
DE4209132A1 (de) * 1992-03-20 1993-09-23 Linde Ag Luftzerlegungsanlage und verfahren zur tieftemperaturzerlegung von luft
US5237823A (en) * 1992-03-31 1993-08-24 Praxair Technology, Inc. Cryogenic air separation using random packing
US5311744A (en) * 1992-12-16 1994-05-17 The Boc Group, Inc. Cryogenic air separation process and apparatus

Also Published As

Publication number Publication date
DE69515068T2 (de) 2000-10-12
CN1103040C (zh) 2003-03-12
ES2144571T5 (es) 2007-09-16
CN1109965A (zh) 1995-10-11
DE69515068D1 (de) 2000-03-23
CA2140561A1 (en) 1995-09-12
HU214052B (en) 1997-12-29
ZA951191B (en) 1996-01-10
NO950383D0 (no) 1995-02-02
EP0671594A1 (en) 1995-09-13
MY114260A (en) 2002-09-30
FI951125A (fi) 1995-09-12
SK32195A3 (en) 1996-02-07
SK282908B6 (sk) 2003-01-09
DE69515068T3 (de) 2007-05-10
CA2140561C (en) 1997-10-14
US5396772A (en) 1995-03-14
JP3678787B2 (ja) 2005-08-03
CZ286306B6 (cs) 2000-03-15
PL180037B1 (pl) 2000-12-29
CZ286246B6 (cs) 2000-02-16
CZ61295A3 (en) 1995-11-15
FI120014B (fi) 2009-05-29
HUT70368A (en) 1995-10-30
CZ286223B6 (cs) 2000-02-16
AU1228195A (en) 1995-09-21
NO950383L (no) 1995-09-12
AU679600B2 (en) 1997-07-03
HU9500640D0 (en) 1995-04-28
CZ286287B6 (cs) 2000-03-15
PL307631A1 (en) 1995-09-18
EP0671594B1 (en) 2000-02-16
TW262392B (es) 1995-11-11
FI951125A0 (fi) 1995-03-10
NO307905B1 (no) 2000-06-13
EP0671594B2 (en) 2007-01-10
JPH07270065A (ja) 1995-10-20

Similar Documents

Publication Publication Date Title
ES2144571T3 (es) Metodo de separacion de gases atmosfericos.
AR247019A1 (es) Un procedimiento para separar los constituyentes de una corriente de gas natural.
ES2092985T3 (es) Separacion de mezclas argon/oxigeno.
PE90698A1 (es) Metodo para separar dioxido de carbono, etano y componentes mas pesados de una corriente de gas natural
AR020929A1 (es) Un proceso para la produccion de un gas natural licuado presurizado pobre en un componente mas volatil que metano
ES2152557T3 (es) Procedimiento para la elaboracion de una descarga liquida de hidroformilacion.
KR900009433A (ko) 알곤 정제
ES2068223T3 (es) Dispositivo para eliminar hidrogeno y contaminantes de una mezcla gaseosa que contiene hidrogeno y oxigeno.
ES2101062T5 (es) Procedimiento de destilacion criogenica mejorada para la produccion de oxigeno y nitrogeno.
ES2142878T3 (es) Aparato y metodo para la separacion de liquidos inmiscibles.
ES2130355T5 (es) Separacion de aire.
ES2037318T3 (es) Metodo de control para aumento de la recuperacion del argon desde unidades de separacion de aire criogenico.
AU550666B2 (en) Distillative separation of carbon dioxide from hydrogen sulfide
KR960029309A (ko) (메트)아크릴산을 포함하는 혼합물로부터 (메트)아크릴산을 분별 분리하는 방법
AR022351A1 (es) Un procedimiento y una instalacion de purificacion de gas y productos obtenidos
ES2123719T5 (es) Procedimiento y aparato de separacion criogenica de aire que produce nitrogeno a alta presion mediante nitrogeno liquido bombeado.
MX165865B (es) Aparato para eliminar el azufre de polisulfuros organicos
NO20005955D0 (no) Fremgangsmåte for utvinning av xenon
ES2077085T3 (es) Produccion de argon a partir de aire con escaso contenido en oxigeno.
ES2104025T3 (es) Sistema de produccion criogenica de helio.
ES2067930T3 (es) Metodo de separacion criogenica de aire para la produccion de oxigeno y nitrogeno a presion media.
BR0114326A (pt) Método e aparelho para desaerar continuamente um lìquido
ES2096124T3 (es) Sistema de rectificacion criogenica con recuperacion elevada.
GB1444176A (en) Isotopically enriched helium - 4
ES2101438T3 (es) Procedimiento y aparato para producir una corriente enriquecida en cripton y xenon directamente desde la columna principal de destilacion de aire.

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 671594

Country of ref document: ES