NO20044580L - Dobbel refluksprosess samt konfigurasjoner for forbedret naturgassveskegjenvinning - Google Patents

Dobbel refluksprosess samt konfigurasjoner for forbedret naturgassveskegjenvinning

Info

Publication number
NO20044580L
NO20044580L NO20044580A NO20044580A NO20044580L NO 20044580 L NO20044580 L NO 20044580L NO 20044580 A NO20044580 A NO 20044580A NO 20044580 A NO20044580 A NO 20044580A NO 20044580 L NO20044580 L NO 20044580L
Authority
NO
Norway
Prior art keywords
configurations
well
natural gas
liquor recovery
recovery
Prior art date
Application number
NO20044580A
Other languages
English (en)
Inventor
John Y Mak
Curt Graham
Wayne Chengwen Chung
Original Assignee
Fluor Corp
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 Fluor Corp filed Critical Fluor Corp
Publication of NO20044580L publication Critical patent/NO20044580L/no

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes 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
    • F25J3/0228—Processes 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 characterised by the separated product stream
    • F25J3/0238—Processes 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 characterised by the separated product stream separation of CnHm with 2 carbon atoms or more
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes 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
    • F25J3/0204—Processes 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 characterised by the feed stream
    • F25J3/0209—Natural gas or substitute natural gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes 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
    • F25J3/0228—Processes 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 characterised by the separated product stream
    • F25J3/0233—Processes 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 characterised by the separated product stream separation of CnHm with 1 carbon atom or more
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes 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
    • F25J3/0228—Processes 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 characterised by the separated product stream
    • F25J3/0242—Processes 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 characterised by the separated product stream separation of CnHm with 3 carbon atoms or more
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/04—Processes or apparatus using separation by rectification in a dual pressure main column system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/74—Refluxing the column with at least a part of the partially condensed overhead gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/78—Refluxing the column with a liquid stream originating from an upstream or downstream fractionator column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • F25J2205/04—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum in the feed line, i.e. upstream of the fractionation step
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/60—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being (a mixture of) hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2240/00—Processes or apparatus involving steps for expanding of process streams
    • F25J2240/02—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/02—Recycle of a stream in general, e.g. a by-pass stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2280/00—Control of the process or apparatus
    • F25J2280/02—Control in general, load changes, different modes ("runs"), measurements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Gas Separation By Absorption (AREA)
  • Industrial Gases (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Et NGL-gjenvinningsanlegg med to tårn innbefatter en absorbator (110) og et destillasjonstårn (140) i hvilket absorbatoren (110) mottar to avkjølte refluks-strømmer, hvor én refluksstrøm (107) omfatter den dampandel av naturgasskondensatet (NGL), og hvor den andre refluksstrømmen (146) omfatter en mager refluks tilveiebrakt av den overliggende delen (144) av destillasjonstårnet (140). Tenkte utførelsesformer er spesielt fordelaktige ved en omgradering av eksisterende NGL-anlegg og oppvinner typisk C3-gjenvinning på minst 99% Og C2-gjenvinning på minst 90%.
NO20044580A 2002-05-20 2004-10-25 Dobbel refluksprosess samt konfigurasjoner for forbedret naturgassveskegjenvinning NO20044580L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2002/016311 WO2003100334A1 (en) 2002-05-20 2002-05-20 Twin reflux process and configurations for improved natural gas liquids recovery

Publications (1)

Publication Number Publication Date
NO20044580L true NO20044580L (no) 2004-12-16

Family

ID=29581740

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20044580A NO20044580L (no) 2002-05-20 2004-10-25 Dobbel refluksprosess samt konfigurasjoner for forbedret naturgassveskegjenvinning

Country Status (9)

Country Link
EP (1) EP1508010B1 (no)
AT (1) ATE383557T1 (no)
AU (1) AU2002303849B2 (no)
CA (1) CA2484085C (no)
DE (1) DE60224585T2 (no)
EA (1) EA007771B1 (no)
MX (1) MXPA04011219A (no)
NO (1) NO20044580L (no)
WO (1) WO2003100334A1 (no)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10330382B2 (en) 2016-05-18 2019-06-25 Fluor Technologies Corporation Systems and methods for LNG production with propane and ethane recovery
US10704832B2 (en) 2016-01-05 2020-07-07 Fluor Technologies Corporation Ethane recovery or ethane rejection operation
US11725879B2 (en) 2016-09-09 2023-08-15 Fluor Technologies Corporation Methods and configuration for retrofitting NGL plant for high ethane recovery

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2543195C (en) * 2003-10-30 2009-02-10 Fluor Technologies Corporation Flexible ngl process and methods
FR2879729B1 (fr) * 2004-12-22 2008-11-21 Technip France Sa Procede et installation de production de gaz traite, d'une coupe riche en hydrocarbures en c3+ et d'un courant riche en ethane
AU2007269613B2 (en) * 2006-07-06 2010-07-22 Fluor Technologies Corporation Propane recovery methods and configurations
WO2008049830A2 (en) * 2006-10-24 2008-05-02 Shell Internationale Research Maatschappij B.V. Method and apparatus for treating a hydrocarbon stream
US10451344B2 (en) 2010-12-23 2019-10-22 Fluor Technologies Corporation Ethane recovery and ethane rejection methods and configurations
RU2528689C1 (ru) * 2013-05-06 2014-09-20 Государственное унитарное предприятие "Институт нефтехимпереработки Республики Башкортостан" (ГУП ИНХП РБ) Способ разделения газа
FR3072162B1 (fr) * 2017-10-10 2020-06-19 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude <P>PROCEDE DE RECUPERATION DE PROPANE ET D'UNE QUANTITE AJUSTABLE D'ETHANE A PARTIR DE GAZ NATUREL</P>
US11112175B2 (en) 2017-10-20 2021-09-07 Fluor Technologies Corporation Phase implementation of natural gas liquid recovery plants

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US33408A (en) * 1861-10-01 Improvement in machinery for washing wool
USRE33408E (en) * 1983-09-29 1990-10-30 Exxon Production Research Company Process for LPG recovery
US4657571A (en) * 1984-06-29 1987-04-14 Snamprogetti S.P.A. Process for the recovery of heavy constituents from hydrocarbon gaseous mixtures
FR2681859B1 (fr) * 1991-09-30 1994-02-11 Technip Cie Fse Etudes Const Procede de liquefaction de gaz naturel.
RU2144556C1 (ru) * 1995-06-07 2000-01-20 Элкор Корпорейшн Способ разделения газового потока и устройство для его осуществления (варианты)
US5983664A (en) * 1997-04-09 1999-11-16 Elcor Corporation Hydrocarbon gas processing
US5953935A (en) * 1997-11-04 1999-09-21 Mcdermott Engineers & Constructors (Canada) Ltd. Ethane recovery process
US6182469B1 (en) * 1998-12-01 2001-02-06 Elcor Corporation Hydrocarbon gas processing
US6116050A (en) * 1998-12-04 2000-09-12 Ipsi Llc Propane recovery methods
FR2796858B1 (fr) * 1999-07-28 2002-05-31 Technip Cie Procede et installation de purification d'un gaz et produits ainsi obtenus
US6244070B1 (en) * 1999-12-03 2001-06-12 Ipsi, L.L.C. Lean reflux process for high recovery of ethane and heavier components
WO2001088447A1 (en) * 2000-05-18 2001-11-22 Phillips Petroleum Company Enhanced ngl recovery utilizing refrigeration and reflux from lng plants
WO2002014763A1 (en) * 2000-08-11 2002-02-21 Fluor Corporation High propane recovery process and configurations

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10704832B2 (en) 2016-01-05 2020-07-07 Fluor Technologies Corporation Ethane recovery or ethane rejection operation
US10330382B2 (en) 2016-05-18 2019-06-25 Fluor Technologies Corporation Systems and methods for LNG production with propane and ethane recovery
US11365933B2 (en) 2016-05-18 2022-06-21 Fluor Technologies Corporation Systems and methods for LNG production with propane and ethane recovery
US11725879B2 (en) 2016-09-09 2023-08-15 Fluor Technologies Corporation Methods and configuration for retrofitting NGL plant for high ethane recovery

Also Published As

Publication number Publication date
AU2002303849A1 (en) 2003-12-12
EP1508010A1 (en) 2005-02-23
CA2484085A1 (en) 2003-12-04
EA200401400A1 (ru) 2005-06-30
EP1508010A4 (en) 2006-01-11
WO2003100334A1 (en) 2003-12-04
ATE383557T1 (de) 2008-01-15
DE60224585D1 (de) 2008-02-21
MXPA04011219A (es) 2005-02-14
AU2002303849B2 (en) 2006-05-25
EP1508010B1 (en) 2008-01-09
EA007771B1 (ru) 2007-02-27
CA2484085C (en) 2008-08-05
DE60224585T2 (de) 2009-04-02

Similar Documents

Publication Publication Date Title
CA2484326A1 (en) Configuration and process for ngl recovery using a subcooled absorption reflux process
TW200503815A (en) Process and plant for the simultaneous production of an liquefiable natural gas and a cut of natural gas liquids
NO20044580L (no) Dobbel refluksprosess samt konfigurasjoner for forbedret naturgassveskegjenvinning
MX336113B (es) Configuraciones y metodos para recuperacion mejorada de liquidos de gas natural.
EA200200629A1 (ru) Способ сжижения и деазотации природного газа, установка для его осуществления и газы, полученные в результате этого разделения
EA200300256A1 (ru) Способ извлечения пропана с высокой степенью и технологические схемы
WO2001034726A3 (en) Methods and apparatus for high propane recovery
MX2007007351A (es) Metodo de instalacion de produccion de gas natural procesado, de una corriente rica en hidrocarburos c3+ y de una corriente rica en etano.
BR0208815A (pt) Processo para a separação e recuperação de dióxido de carbono a partir de gás de rejeito ou fumos produzidos por combustão oxidativa
MY135088A (en) Enhanced ngl recovery utilizing refrigeration and reflux from lng plants
BRPI0517973B8 (pt) métodos para purificar o fsh recombinante
EA200800358A1 (ru) Способ извлечения диоксида углерода высокой степени чистоты из газообразных источников, содержащих соединения азота
ATE532565T1 (de) Auffangverfahren bzw. auffangsystem für organisches lösungsmittel
BR0212088A (pt) Processo de remoção de contaminantes de uma corrente de olefina usando-se destilação extrativa
BR0317622A (pt) Processo de separação térmica
WO2006107596A3 (en) Wrench tremolo bar for a guitar
BRPI0513285A (pt) processo para recuperar hidrocarbonetos de fischer-tropsch leves a partir de um gás residual rico produzido em uma operação de sìntese de fischer-tropsch
MY128706A (en) Method and installation for separating a gas containing methane and ethane with two columns operating at two different pressures
ATE289290T1 (de) Verfahren zur reinigung und wiedergewinnung von acetonitril
NO20033659L (no) Fremgangsmåte for etanutvinning ved bruk av en kjölesyklus hvor det benyttes en blanding av minst to kjölemidler, gasser som fremstilles vedhjelp av nevnte fremgangsmåte, samt installasjon for dette
BR0214414A (pt) Processo para recuperar caprolactama
BR9811527A (pt) Método para a produção de amÈnia
BR0101514A (pt) Processo de análise de um gás de amostra quantoà presença de pelo menos uma impureza no gás deamostra
DK0564036T3 (da) Fremgangsmåde til rensning af en hydrofluoralkan
AU2003214082A1 (en) Method for purifying tetrahydrofuran by distillation

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application