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1. WO2017023605 - METHOD AND APPARATUS FOR ARGON REJECTION AND RECOVERY

Publication Number WO/2017/023605
Publication Date 09.02.2017
International Application No. PCT/US2016/044004
International Filing Date 26.07.2016
IPC
F25J 3/04 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
02by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
04for air
CPC
B01D 2256/18
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2256Main component in the product gas stream after treatment
18Noble gases
B01D 2257/102
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2257Components to be removed
10Single element gases other than halogens
102Nitrogen
B01D 2257/104
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2257Components to be removed
10Single element gases other than halogens
104Oxygen
B01D 3/141
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
14Fractional distillation ; or use of a fractionation or rectification column
141where at least one distillation column contains at least one dividing wall
B01D 53/047
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
02by adsorption, e.g. preparative gas chromatography
04with stationary adsorbents
047Pressure swing adsorption
F25J 2205/02
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
2205Processes or apparatus using other separation and/or other processing means
02using simple phase separation in a vessel or drum
Applicants
  • PRAXAIR TECHNOLOGY, INC. [US]/[US]
Inventors
  • PROSSER, Neil, M.
  • LUO, Yang
  • LARSON, Kirk, F.
Agents
  • MANCINI, Ralph J.
  • HAMPSCH, Robert, J.
  • BLACK, Donald, T.
  • PACE, Salvatore, P.
  • DALAL, Nilay
  • SCHWARTZ, Lurie, A.
Priority Data
15/057,15001.03.2016US
62/199,45031.07.2015US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR ARGON REJECTION AND RECOVERY
(FR) PROCÉDÉ ET APPAREIL POUR LE REJET ET LA RÉCUPÉRATION D'ARGON
Abstract
(EN) A method and apparatus for argon rejection and recovery in which argon is separated from air within a cryogenic air separation plant having a divided wall argon rejection column and condensed using an argon condenser disposed internally within the lower pressure column. The resulting argon stream is subsequently rejected or recovered and optionally purified within an integrated adsorbent based argon refining and purification subsystem to produce product grade argon.
(FR) Procédé et appareil destinés au rejet et à la récupération de l'argon dans lesquels l'argon est séparé de l'air à l'intérieur d'une installation de séparation d'air cryogénique possédant une colonne de rejet d'argon à paroi séparée et condensé à l'aide d'un condenseur d'argon disposé à l'intérieur de la colonne à pression plus basse. Le flux d'argon obtenu est ensuite rejeté ou récupéré et éventuellement purifié à l'intérieur d'un sous-système de raffinage et de purification d'argon à base d'adsorbant intégré pour produire de l'argon.
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