Patent ID: 8906149

Claim:
A gas purification system for removal of gaseous contaminants from a gas stream, comprising: an absorber for contacting a gas stream comprising gaseous contaminants with a wash solution to form a used wash solution; a regenerator for generating a regenerated wash solution from the used wash solution by releasing gaseous contaminants from the used wash solution; a reboiler for reboiling the regenerated wash solution to release gaseous contaminants to form a reboiled wash solution and steam; a first heat-exchanger for heat transfer between the reboiled wash solution and the regenerated wash solution; a second heat-exchanger for heat transfer between the reboiled wash solution from the first heat-exchanger and the used wash solution from the absorber, wherein the absorber is arranged for receiving the reboiled wash solution from the second heat-exchanger; the reboiler is arranged for receiving the regenerated wash solution from the first heat-exchanger; and the regenerator is arranged for receiving the used wash solution from the second heat-exchanger; and a third heat-exchanger for heat transfer between the reboiled wash solution from the first heat-exchanger and a first portion of the used wash solution from the second heat-exchanger; and wherein the third heat-exchanger is arranged for receiving reboiled wash solution from the first heat-exchanger and for receiving a first portion of used wash solution from the second heat-exchanger.