METHOD FOR PURIFYING ARGON THROUGH CRYOGENIC ADSORPTION

PATENT - 211PUS04421 ABSTRACT This invention relates to an improved process for preparing high purity argon employing a cryogenic adsorptive technique. In the process air is separated into its components and a crude argon feed containing 0.8 mol% oxygen or less and 0.5 mol% nitrogen or less is gener...

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Bibliographic Details
Main Authors KOVAK, KENNETH W, PETERSON, JANICE C, AGRAWAL, RAKESH
Format Patent
LanguageEnglish
French
Published 15.11.1992
Edition5
Subjects
BLASTING
CHEMISTRY
COMBINED HEATING AND REFRIGERATION SYSTEMS
COMPOUNDS THEREOF
HEAT PUMP SYSTEMS
HEATING
INORGANIC CHEMISTRY
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
METALLURGY
MIXTURES BY PRESSURE AND COLD TREATMENT
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
REFRIGERATION OR COOLING
SEPARATION
TRANSPORTING
WEAPONS
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Summary:PATENT - 211PUS04421 ABSTRACT This invention relates to an improved process for preparing high purity argon employing a cryogenic adsorptive technique. In the process air is separated into its components and a crude argon feed containing 0.8 mol% oxygen or less and 0.5 mol% nitrogen or less is generated. The crude argon feed is initially subjected to cryogenic adsorption for effecting nitrogen removal and then further subjected to cryogenic adsorption for effecting removal of oxygen. By conducting cryogenic adsorption in this manner, essentially no supplemental refrigeration is required in the cryogenic adsorption steps.
Bibliography:Application Number: CA19922068157