Processing

Please wait...

Settings

Settings

Goto Application

1. WO2006118583 - LIQUEFIED NATURAL GAS PROCESSING

Publication Number WO/2006/118583
Publication Date 09.11.2006
International Application No. PCT/US2005/019520
International Filing Date 03.06.2005
IPC
F25J 3/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT
3Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification
CPC
F25J 2200/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
2200Processes or apparatus using separation by rectification
02in a single pressure main column system
F25J 2200/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
2200Processes or apparatus using separation by rectification
04in a dual pressure main column system
F25J 2200/70
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
2200Processes or apparatus using separation by rectification
70Refluxing the column with a condensed part of the feed stream, i.e. fractionator top is stripped or self-rectified
F25J 2200/72
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
2200Processes or apparatus using separation by rectification
72Refluxing the column with at least a part of the totally condensed overhead gas
F25J 2200/76
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
2200Processes or apparatus using separation by rectification
76Refluxing the column with condensed overhead gas being cycled in a quasi-closed loop refrigeration cycle
F25J 2205/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
2205Processes or apparatus using other separation and/or other processing means
02using simple phase separation in a vessel or drum
04in the feed line, i.e. upstream of the fractionation step
Applicants
  • ORTLOFF ENGINEERS, LTD. [US]/[US] (AllExceptUS)
  • CUELLAR, Kyle, T. [US]/[US] (UsOnly)
  • WILKINSON, John, D. [US]/[US] (UsOnly)
  • HUDSON, Hank, M. [US]/[US] (UsOnly)
Inventors
  • CUELLAR, Kyle, T.
  • WILKINSON, John, D.
  • HUDSON, Hank, M.
Agents
  • RUSSO, Alicia, A.
Priority Data
60/584,66801.07.2004US
60/646,90324.01.2005US
60/669,64208.04.2005US
60/671,93015.04.2005US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) LIQUEFIED NATURAL GAS PROCESSING
(FR) TRAITEMENT DE GAZ NATUREL LIQUEFIE
Abstract
(EN) A process and apparatus for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbons from a liquefied natural gas (LNG) stream is disclosed. The LNG feed stream is divided into two portions. The first portion is supplied to a fractionation column at an upper mid-column feed point. The second portion is directed in heat exchange relation with a warmer distillation stream rising from the fractionation stages of the column, whereby this portion of the LNG feed stream is partially heated and the distillation stream is totally condensed. The condensed distillation stream is divided into a 'lean' LNG product stream and a reflux stream, whereupon the reflux stream is supplied to the column at a top column feed position. The partially heated portion of the LNG feed stream is heated further to partially or totally vaporize it and thereafter supplied to the column at a lower mid-column feed position.
(FR) L'invention concerne un procédé et un appareil de récupération d'éthane, d'éthylène, de propane et d'hydrocarbures plus lourds à partir d'un flux de gaz naturel liquéfié (GNL). Le flux d'alimentation GNL (41) est divisé en deux parties (42,43). La première partie (42) est introduite dans une colonne de fractionnement au niveau d'un point d'alimentation intermédiaire supérieur de la colonne. La deuxième partie (43) est dirigée pour établir un échange thermique (12) avec un flux de distillation plus chaud (48) montant des étages de fractionnement de la colonne, ce qui permet de chauffer partiellement la dernière partie de flux d'alimentation GNL et de condenser partiellement le flux de distillation (48b). Le flux de distillation condensé est divisé en un flux de produit GNL « pauvre » (52a) et en un courant de reflux (53); le courant de reflux étant introduit dans la colonne en une position d'alimentation supérieure de la colonne. La partie partiellement chauffée (43a) du flux d'alimentation GNL est ensuite chauffée (13) à des fins de vaporisation partielle ou totale, puis est introduite dans la colonne à un position d'alimentation intermédiaire inférieure de la colonne.
Related patent documents
BRPI0512744This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
Latest bibliographic data on file with the International Bureau