CORE-SHELL COMPOSITE ABSORBENT FOR USE IN PSA PRE-CLEANERS AND CYCLIC ABSORPTION PROCESSES

CORE-SHELL COMPOSITE ABSORBENT FOR USE IN PSA PRE-CLEANERS AND CYCLIC ABSORPTION PROCESSES

The present invention relates generally to an attrition resistant core-in-shell composite adsorbent comprising at least a zeolite-containing CO2 removal adsorbent and a binder on an inert dense core. The attrition resistant core-in-shell composite adsorbent has an attrition loss of less than about 2...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BARRETT, Philip A, PONTONIO, Steven J, ZHENG, Jian, SCHOTZ, Christopher D, STEPHENSON, Neil A
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:The present invention relates generally to an attrition resistant core-in-shell composite adsorbent comprising at least a zeolite-containing CO2 removal adsorbent and a binder on an inert dense core. The attrition resistant core-in-shell composite adsorbent has an attrition loss of less than about 2 wt %. The core-in-shell composite adsorbent is preferably used in a multi-layered adsorption system in a cyclic adsorption process, preferably used in a PSA prepurification process prior to cryogenic air separation.