Patent ID: 7785399
Filing Date: 2010-08-31
Classification: B01D

Abstract:
1. An acid gas removal process comprising the steps of: providing a feed gas including acid gas to at least one absorber, the at least one absorber including an absorbent material that absorbs acid gas; removing acid gas from the feed gas by absorption to produce a first rich solvent stream including solvent and acid gas; separating at least one slip stream from the first rich solvent stream and heating the at least one slip stream by heat exchange to produce at least one heated slip stream; passing at least a portion of the first rich solvent stream to a bridge heat exchanger to produce a heated rich solvent stream; combining the at least one heated slip stream with the heated rich solvent stream to form a combined rich solvent stream before any stripping; and passing the combined rich solvent stream to a concentrator to produce a stripped solvent stream as a bottoms stream, and a stripped gas stream as an overhead stream.