Amine regeneration process

Details Amine regeneration process Amine regeneration process

B - Operations, Transporting

01

D

23/346, 202/83

B01D 3/38 (2006.01) B01D 19/00 (2006.01) B01D 53/14 (2006.01)

Patent

CA 1117461

(U.S. 920,69 2) ABSTRACT OF THE DISCLOSURE Impurities such as hydrogen sulfide and carbon dioxide are removed from fluids by contact with an aqueous alkanolamine solution which absorbs said impurities from the fluid. The resultant spent absorbent amine stream is split into two streams; one stream being routed directly to the top of an amine regenerator column and the second stream being routed to a heat exchanger where it is heated en route to an intermediate point of the regenerator column by heat exchange with the hot regenerated solution coming from the bottom of the regenerator column. The spent amine stream which is passed directly to the top of the regenerator column is heated by condensing steam in the column which would normally escape therefrom. Reducing the losses of saturation steam in combination with heating a portion of the spent absorbent amine stream by heat exchange with the hot regen- erated solution reduces the overall energy requirements for the system.

330488

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