PROCESS FOR SELECTIVE REMOVAL OF CYCLIC UREA FROM HINDERED AMINE GAS TREATING SOLUTION

PROCESS FOR SELECTIVE REMOVAL OF CYCLIC UREA FROM HINDERED AMINE GAS TREATING SOLUTION

U.S. 972,500 In the process of the present invention, a cyclic urea degradation product formed as a by-product of a hindered amine acid gas scrubbing process is removed from a circulating amine scrubbing solution by employing a selective precipitation of the cyclic urea followed by filtration. The s...

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Bibliographische Detailangaben
Hauptverfasser: HAYS, JAMES R., SR, SAY, GEOFFREY R, IYENGAR, JAGANNATHAN N
Format: Patent
Sprache:eng ; fre
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Zusammenfassung:U.S. 972,500 In the process of the present invention, a cyclic urea degradation product formed as a by-product of a hindered amine acid gas scrubbing process is removed from a circulating amine scrubbing solution by employing a selective precipitation of the cyclic urea followed by filtration. The selective precipitation is carried out by cooling the circulating solution to a particular temperature level such that the cyclic urea comes out of solution while the other components remain in solution.