WO2013087570A3 - Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition - Google Patents

Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition Download PDF

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Publication number
WO2013087570A3
WO2013087570A3 PCT/EP2012/074958 EP2012074958W WO2013087570A3 WO 2013087570 A3 WO2013087570 A3 WO 2013087570A3 EP 2012074958 W EP2012074958 W EP 2012074958W WO 2013087570 A3 WO2013087570 A3 WO 2013087570A3
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WIPO (PCT)
Prior art keywords
nitrogen
liquid
hydrocarbon composition
cryogenic hydrocarbon
stripped
Prior art date
Application number
PCT/EP2012/074958
Other languages
French (fr)
Other versions
WO2013087570A2 (en
Inventor
Alexandre M.C.R. Santos
Original Assignee
Shell Internationale Research Maatschappij B.V.
Shell Oil Company
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 Shell Internationale Research Maatschappij B.V., Shell Oil Company filed Critical Shell Internationale Research Maatschappij B.V.
Priority to RU2014128650A priority Critical patent/RU2622212C2/en
Priority to AU2012350743A priority patent/AU2012350743B2/en
Priority to CN201280061150.2A priority patent/CN103998882B/en
Priority to CA2858756A priority patent/CA2858756C/en
Publication of WO2013087570A2 publication Critical patent/WO2013087570A2/en
Publication of WO2013087570A3 publication Critical patent/WO2013087570A3/en

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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
    • F25J2280/00—Control of the process or apparatus
    • F25J2280/02—Control in general, load changes, different modes ("runs"), measurements
    • 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

Abstract

Nitrogen is removed from a cryogenic hydrocarbon composition. The cryogenic hydrocarbon composition is split into a first portion and a second portion having the same composition and phase as the first portion. The first portion is fed to a nitrogen stripper column, operating at a stripping pressure, from which a nitrogenstripped liquid is drawn. The second portion is fed into the nitrogen-stripped liquid or in a liquid hydrocarbon product stream or in a process vapour which are produced from the nitrogen-stripped liquid involving at least a step of depressurizing the nitrogen-stripped liquid to a flash pressure that is lower than the stripping pressure. The second portion bypasses the nitrogen stripper column between the stream splitting and the feeding of the second portion into the nitrogen-stripped liquid or the liquid hydrocarbon product stream or the process vapour.
PCT/EP2012/074958 2011-12-12 2012-12-10 Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition WO2013087570A2 (en)

Priority Applications (4)

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RU2014128650A RU2622212C2 (en) 2011-12-12 2012-12-10 Method and device for removing nitrogen from cryogenic hydrocarbon composition
AU2012350743A AU2012350743B2 (en) 2011-12-12 2012-12-10 Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition
CN201280061150.2A CN103998882B (en) 2011-12-12 2012-12-10 For removing the method and apparatus of nitrogen from low temperature hydrocarbon composition
CA2858756A CA2858756C (en) 2011-12-12 2012-12-10 Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition

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EP11192921.2 2011-12-12
EP11192921 2011-12-12

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CA2858756C (en) 2020-04-28
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MY178855A (en) 2020-10-21
AU2012350743A1 (en) 2014-05-22
RU2622212C2 (en) 2017-06-13
CA2858756A1 (en) 2013-06-20
CN103998882B (en) 2016-04-13
RU2014128650A (en) 2016-02-10
WO2013087570A2 (en) 2013-06-20

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