Method of recovering ammonia and compounds from offgases contaminated with organic materials, carbon dioxide, and ammonia

A method for recovering ammonia and organic compounds from offgases contaminated with organic materials, carbon dioxide, and ammonia, using a combined absorption and rectification column is disclosed. Carbon dioxide is washed out with aqueous alkali, ammonia is drawn off as an overhead product, and...

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Bibliographische Detailangaben
Hauptverfasser:	HEITMANN, WILHELM
Format:	Patent
Sprache:	eng
Schlagworte:	AMMONIA BLASTING CHEMISTRY COMBINED HEATING AND REFRIGERATION SYSTEMS COMPOUNDS THEREOF CYANOGEN 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 PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REFRIGERATION OR COOLING SEPARATION TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A method for recovering ammonia and organic compounds from offgases contaminated with organic materials, carbon dioxide, and ammonia, using a combined absorption and rectification column is disclosed. Carbon dioxide is washed out with aqueous alkali, ammonia is drawn off as an overhead product, and the organic compounds are recovered in pure form from the bottoms product following separation-out of the alkali carbonate.