Research Triangle Institute

Jak Tanthana

Marty Lail

Vijay Gupta

Luke Coleman

Shaojun James Zhou

Paul David Mobley

Thor Mejdell

Finn Andrew Tobiesen

Kelly E Amato

Andreas Grimstvedt

Aravind V Rayer Rabindran

Geir Haugen

A method with corresponding systems for reducing emission of amines to the atmosphere. The method includes a a) introducing a gas containing COinto an absorber; b) flowing the flue gas through an absorber having an absorbent with a water-lean solution having less than 50% water and one or more amines, with the absorbent capturing the COand forming a reduced COcontent gas having a baseline COcontent; and c) washing the reduced COcontent gas in a wash column with a wash solution comprising carbonic acid formed by addition of gaseous COinto the wash solution. In this method, the washing removes the amines from the reduced COcontent gas and produces a reduced amine content gas exiting from the wash column.

Methods and systems for emissions control in solvent-based CO2 capture processes using CO2

This invention is directed to methods and systems for controlling water in acid gas removal processes comprising the steps of a) treating the gas stream in an absorption zone with the NAS absorption liquid; b) direction the acid gas-loaded NAS absorption liquid to a regeneration zone; c) directing the regenerated NAS absorption liquid to step a); and d) controlling the first and second set of conditions.

Water control in non-aqueous acid gas recovery systems

Growing community of inventors

Durham, NC, United States of America

Jak Tanthana