MY185531A - Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition - Google Patents

Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition

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Publication number
MY185531A
MY185531A MYPI2014701217A MYPI2014701217A MY185531A MY 185531 A MY185531 A MY 185531A MY PI2014701217 A MYPI2014701217 A MY PI2014701217A MY PI2014701217 A MYPI2014701217 A MY PI2014701217A MY 185531 A MY185531 A MY 185531A
Authority
MY
Malaysia
Prior art keywords
vapour
nitrogen
stripper column
hydrocarbon composition
nitrogen stripper
Prior art date
Application number
MYPI2014701217A
Inventor
Alexandre M C R Santos
Original Assignee
Shell Int Research
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 Int Research filed Critical Shell Int Research
Publication of MY185531A publication Critical patent/MY185531A/en

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    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/08—Separating gaseous impurities from gases or gaseous mixtures or from liquefied gases or liquefied gaseous mixtures
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    • 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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    • 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

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  • 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

Nitrogen is removed from a cryogenic hydrocarbon composition. A least a first portion of the cryogenic hydrocarbon composition is fed to a nitrogen stripper column (20). The nitrogen stripper column (20) operates at a stripping pressure. A stripping vapour is passed into the nitrogen stripper column (20), comprising at least a stripping. portion of a compressed process vapour that has been produced from the nitrogen-stripped liquid which has been depressurized after drawing it from the nitrogen stripper column (20). Reflux is generated involving partially condensing overhead vapour of the nitrogen stripper column (20) by passing heat from the overhead vapour to an auxiliary refrigerant stream at a cooling duty. An off gas consisting of a, non-condensed, vapour fraction from the overhead vapour is discharged. The cooling duty is adjusted to regulate a heating value of the vapour fraction being discharged.
MYPI2014701217A 2011-12-12 2012-12-10 Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition MY185531A (en)

Applications Claiming Priority (2)

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EP11192920 2011-12-12
PCT/EP2012/074959 WO2013087571A2 (en) 2011-12-12 2012-12-10 Method and apparatus for removing nitrogen from a cryogenic hydrocarbon composition

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MY185531A true MY185531A (en) 2021-05-19

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CN (1) CN104011489B (en)
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CA (1) CA2858155C (en)
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RU2607708C2 (en) 2017-01-10
US20140345319A1 (en) 2014-11-27
AU2012354774B2 (en) 2015-09-10
CA2858155A1 (en) 2013-06-20
WO2013087571A2 (en) 2013-06-20
CA2858155C (en) 2020-04-28
CN104011489B (en) 2016-03-23
CN104011489A (en) 2014-08-27
WO2013087571A3 (en) 2014-05-01
AU2012354774A1 (en) 2013-07-18

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