SOLVENT RECOVERY FROM SWEEP GAS STREAMS

The present invention discloses a method for removing solvent from a solvent containing sweep gas stream obtained from a fertilizer coating process. The method can include the steps of: directly contacting the solvent containing sweep gas stream with an aqueous composition comprising 50% wt/wt to 10...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHANDRASEKARAN JAYACHANDRAN, TIRTOWIDJOJO DANIL, URAIZEE FAROOQ, RAMESWARAN RAMESH
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL BLASTING DRYING DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The present invention discloses a method for removing solvent from a solvent containing sweep gas stream obtained from a fertilizer coating process. The method can include the steps of: directly contacting the solvent containing sweep gas stream with an aqueous composition comprising 50% wt/wt to 100% wt/wt of water, condensing at least a portion of the solvent out of the solvent containing sweepgas stream into the aqueous composition to produce a solvent-enriched aqueous composition and a recovered sweep gas stream, and removing the recovered sweep gas stream from the solvent-enriched aqueous composition. 公开了一种用于从含溶剂的吹扫气流中移除溶剂的方法，含溶剂的吹扫气流从肥料涂覆过程获得。本方法能够包括将含溶剂的吹扫气流与包含50％重量/重量至100％重量/重量水的水性组合物直接接触，将含溶剂的吹扫气流中的溶剂的至少一部分冷凝到水性组合物是以产生富含溶剂的水性组合物以及回收的吹扫气流，并且从富含溶剂的水性组合物移除回收的吹扫气流。