Removal of degradation product from gas treating solution

Details Removal of degradation product from gas treating solution Removal of degradation product from gas treating solution

C - Chemistry, Metallurgy

07

D

260/315

C07D 233/40 (2006.01) B01D 53/14 (2006.01) C10K 1/14 (2006.01)

Patent

CA 1181081

ABSTRACT OF THE DISCLOSURE A method for separating a cyclic urea degrada- tion product from a solution, such as a scrubbing solution comprising n-cyclohexyl-1,3-propane diamine, an alkali metal carbonate and cyclic urea, is disclosed. The solution is passed to a vacuum crystallization zone (30) wherein at least a portion of the cyclic urea is crystal- lized after which the solution is passed to a filtration zone (40) for separation of the cyclic urea crystals from the solution.

403787

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