CA2858155C - Procede et appareil pour retirer de l'azote d'une composition d'hydrocarbures cryogeniques - Google Patents

Procede et appareil pour retirer de l'azote d'une composition d'hydrocarbures cryogeniques Download PDF

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CA2858155C
CA2858155C CA2858155A CA2858155A CA2858155C CA 2858155 C CA2858155 C CA 2858155C CA 2858155 A CA2858155 A CA 2858155A CA 2858155 A CA2858155 A CA 2858155A CA 2858155 C CA2858155 C CA 2858155C
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vapour
nitrogen
stream
stripping
fraction
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CA2858155A1 (fr
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Alexandre M.C.R. Santos
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Shell Internationale Research Maatschappij BV
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Shell Internationale Research Maatschappij BV
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    • 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
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022—Hydrocarbons, e.g. natural gas
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    • 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
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    • 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
    • F25J2245/90—Processes or apparatus involving steps for recycling of process streams the recycled stream being boil-off gas from storage
    • 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 & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

De l'azote est retiré d'une composition d'hydrocarbures cryogéniques. Au moins une première partie de la composition d'hydrocarbures cryogéniques est introduite dans une colonne de strippage d'azote. La colonne de strippage d'azote fonctionne à une pression de strippage. Une vapeur de strippage est amenée à passer à travers la colonne de strippage d'azote, comprenant au moins une partie de strippage d'une vapeur de traitement comprimée qui a été produite à partir du liquide ayant subi le strippage d'azote, qui a été dépressurisé après son soutirage de la colonne de strippage d'azote. Un reflux est généré et mettant en jeu une condensation partielle de la vapeur de tête de la colonne de strippage d'azote par passage de chaleur de la vapeur de tête à un courant de réfrigérant auxiliaire à un dispositif de refroidissement. Un gaz d'échappement consistant en une fraction de vapeur non condensée provenant de la vapeur de tête est déchargé. Le dispositif de refroidissement est ajusté pour réguler une valeur de chauffage de la fraction de vapeur qui est déchargée.
CA2858155A 2011-12-12 2012-12-10 Procede et appareil pour retirer de l'azote d'une composition d'hydrocarbures cryogeniques Active CA2858155C (fr)

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EP11192920 2011-12-12
EP11192920.4 2011-12-12
PCT/EP2012/074959 WO2013087571A2 (fr) 2011-12-12 2012-12-10 Procédé et appareil pour retirer de l'azote d'une composition d'hydrocarbures cryogéniques

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AU2012354774A1 (en) 2013-07-18
CN104011489B (zh) 2016-03-23
WO2013087571A2 (fr) 2013-06-20
AU2012354774B2 (en) 2015-09-10
CA2858155A1 (fr) 2013-06-20
RU2607708C2 (ru) 2017-01-10
WO2013087571A3 (fr) 2014-05-01
US20140345319A1 (en) 2014-11-27
RU2014128666A (ru) 2016-02-10
CN104011489A (zh) 2014-08-27
MY185531A (en) 2021-05-19

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