Low pressure stripping in a gas purification process and systems thereof

1. A process for operating an ammonia stripper in a gas purification system, the process comprising:

providing a first side-draw stream from the ammonia stripper;

providing a condensate from a reboiler fluidly coupled to a regenerator;

heating the first side-draw stream with the condensate in a side-reboiler fluidly coupled to the reboiler and the ammonia stripper;

compressing a stripper offgas stream from the ammonia stripper;

providing the compressed stripper offgas stream to a stripper overhead condenser; and

utilizing the compressed stripper offgas stream as a heat source for a regenerating system fluidly coupled to the stripper overhead condenser.

2. The process of claim 1 , further comprising heating a rich absorbent solution from an absorber with a portion of the condensate.

3. The process of claim 1 , wherein utilizing the stripper offgas stream as the heat source comprises exchanging heat from the stripper offgas stream with a second side-draw stream from a bottom portion of the ammonia stripper.

4. The process of claim 3 , wherein the second side-draw stream is partially vaporized in the stripper overhead condenser.

5. The process of claim 1 , wherein utilizing the stripper offgas stream as the heat source comprises exchanging heat from the stripper offgas stream with a slip stream of rich absorbent solution from an absorber.

6. The process of claim 5 , further comprising providing the heated slip stream to the regenerator.