Patent ID: 9216377
Filing Date: 2015-12-22
Classification: B01D,C07C,C10L,Y02P

Abstract:
1. A system for removing an impurity from a feed gas stream, which system comprises: a rotating packed bed absorber with one or more rotatable packing rings, said absorber configured for contacting a feed gas stream comprising one or more impurities with a liquid to produce (i) an impurity-rich liquid solution having a pressure comprising one or more absorbed impurities and (ii) purified gas; and a pressure reducing device in fluid communication with the rotating packed bed absorber for receiving and reducing the pressure of the impurity-rich liquid solution and recovering energy therefrom and wherein at least some of the energy recovered in the pressure reducing device is employed to rotate the one or more rotatable packing rings of the rotating packed bed absorber wherein the rotating packed bed absorber comprises a liquid distributor comprising: (a) a pipe having a central conduit and an annulus about the conduit, the annulus is in fluid communication with a plurality of protruding tabs that extend into an interior region of the rotatable packing rings, the protruding tabs having a plurality of outlets for introducing liquid solution into the interior region, the central conduit in fluid communication with the interior region for removing a purified gas from the interior region; or (b) a pipe having a central conduit and an annulus about the conduit wherein one or more internal seals prevent feed gas from passing between the rotating packed bed and the pipe and wherein said internal seal comprises indentations sufficient to create a pressure drop within said space between the rotating packed bed and the pipe.