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

1981-06-01

1982-07-27

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

2602393R, 260707, 544315, 548317, B01D 5334, B01D 902

Patent

active

043417469

ABSTRACT:
A method for separating a cyclic urea degradation 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 wherein at least a portion of the cyclic urea is crystallized after which the solution is passed to a filtration zone for separation of the cyclic urea crystals from the solution.

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patent: 4112051 (1978-09-01), Sartori et al.
patent: 4112052 (1978-09-01), Sartori et al.
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patent: 4183903 (1980-01-01), Melchior et al.
patent: 4282193 (1981-08-01), Melchior et al.
patent: 4282194 (1981-08-01), Say et al.
patent: 4292286 (1981-09-01), Say

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