Verfahren und Vorrichtung zur Herstellung von ultrahochreinem Stickstoff

An ultra-high purity nitrogen generating method comprises: feeding feed air to a carbon dioxide eliminator-drier (4) and a primary rectification column (6), thereby removing catalyst poisons for an oxidation catalyst used for oxidation of carbon monoxide and hydrogen in the feed air by means of the...

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Bibliographische Detailangaben
Hauptverfasser:	NAGAMURA, TAKASHI, HARIMA FACTORY OF TEISAN K.K., KAKO-GUN, HYOGO-KEN, JP, TOMITA, SHINJI, HARIMA FACTORY OF TEISAN K.K., KAKO-GUN, HYOGO-KEN, JP, YAMAMOTO, TAKAO, HARIMA FACTORY OF TEISAN K.K, KAKO-GUN, HYOGO-KEN, JP
Format:	Patent
Sprache:	ger
Schlagworte:	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 REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	An ultra-high purity nitrogen generating method comprises: feeding feed air to a carbon dioxide eliminator-drier (4) and a primary rectification column (6), thereby removing catalyst poisons for an oxidation catalyst used for oxidation of carbon monoxide and hydrogen in the feed air by means of the carbon dioxide eliminator-drier (4) and the primary rectification column (6), condensing and liquefying a part of low purity nitrogen gas separated in the primary rectification column (6) by means of a condenser (7), warming the raw nitrogen gas which has not been condensed and liquefied in the condenser to normal temperature by means of a heat exchanger (5) and compressing it by a recycle compressor (9) so that the pressure thereof is increased and the temperature thereof is raised, oxidizing carbon monoxide and hydrogen in an oxidation column (10) and removing the resulting carbon dioxide and water by an adsorption column (12).