Removal of acid gases from a gas stream

Details Removal of acid gases from a gas stream Removal of acid gases from a gas stream

B - Operations, Transporting

01

D

B01D 53/78 (2006.01) B01D 19/00 (2006.01)

Patent

CA 2736222

A gas processing facility for the separation of fluids is provided. The facility includes co-current contactors placed in series. Each co-current contactor receives a gas stream that includes a non- absorbing gas such as a hydrocarbon gas or nitrogen. The gas stream also includes an acid gas or other contaminant. Each co-current contactor also receives a liquid solvent stream. The co-current contactors then each release a sweetened gas stream and a gas- treating solution. In one processing direction, the contactors are arranged to deliver progressively sweetened gas streams. In the opposite processing direction, the contactors are arranged to deliver progressively richer gas-treating solutions. In one aspect, the facility includes at least a first co-current contactor, a second co-current contactor and a final co- current contactor. However, any number of at least two co-current separators may be employed. Methods and processes for separating a gas stream are also provided.

L'invention porte sur une installation de traitement de gaz pour la séparation de fluides. L'installation comprend des contacteurs co-courant placés en série. Chaque contacteur co-courant reçoit un courant gazeux qui comprend un gaz non absorbant tel qu'un hydrocarbure gazeux ou l'azote. Le courant de gaz comprend également un gaz acide ou autre contaminant. Chaque contacteur co-courant reçoit également un courant de solvant liquide. Les contacteurs co-courant libèrent alors chacun un courant de gaz adouci et une solution de traitement de gaz. Dans une direction de traitement, les contacteurs sont agencés pour distribuer des courants de gaz progressivement adouci. Dans la direction de traitement opposée, les contacteurs sont agencés pour distribuer des solutions de traitement de gaz progressivement plus riches. Sous l'un de ses aspects, l'installation comprend au moins un premier contacteur co-courant, un second contacteur co-courant et un contacteur co-courant final. Cependant, n'importe quel nombre d'au moins deux séparateurs co-courant peut être utilisé. L'invention porte également sur des méthodes et des procédés pour séparer un courant gazeux.

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