Apparatus and method for recovering an amine solvent from an acid gas stream

Patent · Mon Dec 27 23:00:00 EST 2021

OSTI ID:1860195

Irvin, Bradley David; Warriner, Amanda; Widger, Leland R.; Liu, Kunlei

A method and apparatus are provided for recovering an amine solvent from an acid gas stream. The apparatus includes a water wash recovery column, a nozzle for spraying water wash and an amine nucleation agent into the water wash recovery column and an inlet port for introducing acid gas into the water wash recovery column adjacent the lower end thereof. The method includes the steps of treating the acid gas stream in the water wash recovery column with a counter-current flow of water wash in an amine nucleation agent, discharging treated acid gas from an upper end of the water wash recovery column and collecting water wash, amine nucleation agent and entrained amine solvent from the acid gas stream and a sump at a lower end of the water wash recovery column.

• Research Organization: University of Kentucky, Lexington, KY (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FE0007395
• Assignee: University of Kentucky Research Foundation (Lexington, KY)
• Patent Number(s): 11,207,634
• Application Number: 16/460,229
• OSTI ID: 1860195
• Country of Publication: United States
• Language: English