Improved configurations and methods for high pressure acid...

Details Improved configurations and methods for high pressure acid... Improved configurations and methods for high pressure acid...

B - Operations, Transporting

01

D

B01D 53/14 (2006.01)

Patent

CA 2756142

Physical solvent is regenerated using flashing and stripping processes to produce an ultra-lean solvent. In especially preferred aspects, flashed C1-C3 hydrocarbons are recycled to the absorber, while C4+ hydrocarbons are recovered from the CO2 that is removed from the solvent. It is further preferred that depressurization of the rich solvent provides most of the refrigeration duty.

Selon l'invention, un solvant physique est régénéré à l'aide de procédés de vaporisation instantanée et de rectification pour produire un solvant ultra-léger. Sous des aspects particulièrement préférés, les hydrocarbures en C1-C3 de vaporisation instantanée sont recyclés à l'absorbeur, tandis que les hydrocarbures en C4+ sont récupérés à partir du CO2 qui est éliminé du solvant. Il est en outre préféré qu'une dépressurisation du solvant lourd assure la plupart de la charge de réfrigération.

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