Integrated controlled freeze zone (cfz) tower and dividing...

Details Integrated controlled freeze zone (cfz) tower and dividing... Integrated controlled freeze zone (cfz) tower and dividing...

F - Mech Eng,Light,Heat,Weapons

25

J

F25J 3/00 (2006.01) C10L 3/10 (2006.01) F25D 25/00 (2006.01) B01D 53/52 (2006.01) B01D 53/62 (2006.01)

Patent

CA 2674618

The present invention relates to methods and apparatuses for the operation of a distillation tower containing a controlled freezing zone and at least one distillation section. The process and tower design are utilized for the additional recovery of hydrocarbons from an acid gas. In this process, a separation process is utilized in which a multi-component feedstream is introduced into an apparatus that operates under solids forming conditions for at least one of the feedstream components. The freezable component, although typically CO2, H2S, or another acid gas, can be any component that has the potential for forming solids in the separation system. A dividing wall is added to at least a portion of the lower distillation section of the apparatus to effect the separation of at least some fraction of the hydrocarbons in that portion of the tower.

La présente invention concerne des procédés et des appareils destinés au fonctionnement d'une tour de distillation contenant une zone CFZ et au moins une section de distillation. Le procédé et la conception de la tour sont utilisés en vue de la récupération supplémentaire d'hydrocarbures à partir d'un gaz acide. Dans ce procédé, un processus de séparation est utilisé dans lequel un flux d'alimentation à constituants multiples est introduit dans un appareil qui opère dans des conditions de formation de solides pour au moins l'un des constituants du flux d'alimentation. Le constituant gelable, généralement CO2, H2S, ou un autre gaz acide, peut être un constituant quelconque offrant la possibilité d'une formation de solides dans le système de séparation. Une paroi de séparation est ajoutée à au moins une partie de la section de distillation inférieure de l'appareil pour effectuer la séparation d'au moins une certaine fraction des hydrocarbures dans cette partie de la tour.

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