Low pressure steam pre-heaters for gas purification systems and processes of use

摘要

Systems for regenerating an absorbent solution include steam produced by a boiler; a set of pressure turbines fluidly coupled to the boiler for receiving the steam, wherein the set of pressure turbines comprises a high pressure turbine, a medium pressure turbine and a low pressure turbine; and a regenerating system comprising a regenerator for regenerating a rich and/or semi-rich absorbent solution to form a lean absorbent solution in fluid communication with a reboiler, the regenerating system fluidly coupled to the set of pressure turbines, wherein steam from the low pressure turbine provides a heat source for preheating the rich or the semi-rich absorbent solution fed to the regenerator. Also disclosed are processes of use.

主权项

1. A process for providing at least a portion of steam produced by a boiler to a regenerating system, the process comprising:
producing a steam by combusting a fuel source in a boiler; providing at least a portion of the steam to a set of pressure turbines fluidly coupled to the boiler, the set of pressure turbines comprising a high pressure turbine, an intermediate pressure turbine, and a low pressure turbine; extracting at least a portion of a low pressure steam from the low pressure turbine; utilizing the extracted portion of the low pressure steam as a heat source for a regenerating system fluidly coupled to the low pressure turbine utilizing a low pressure steam condensate from a stripper; and combining the low pressure steam condensate with a regenerator reboiler steam condensate as an additional heat source for heating a solution rich in an acidic component in the regenerating system.