Patent ID: 8702071

Claim:
A method for removing an acid gas from an acid-laden feed gas stream, which comprises: providing a rotating packed bed comprising two sets of rotatable packing rings disposed within a chamber and defining an interior region, and a liquid distributor with at least one inlet for accepting a liquid, the inlet in communication with an exit port for infusing the liquid into the interior region, and at least one gas outlet in the liquid distributor for accepting gas which has passed through the packed bed and removing the gas from the interior region, causing two sets of rotatable packing rings to rotate counter-currently with respect to each other; infusing liquid comprising an amine solution by way of the at least one liquid inlet into the interior region and injecting an acid-laden feed gas through at least one gas inlet into the interior region, with the liquid and feed gas passing through each of the packing rings in countercurrent flow; removing liquid from the interior region through a liquid outlet; and removing gas through the gas outlet in the liquid distributor.