| 96 / | HD | GAS SEPARATION: APPARATUS | 
| 243 | DF | WITH GAS AND LIQUID CONTACT APPARATUS {16} | 
| 301 | DF | .~ Fixed gas whirler or rotator for gas separation {5} | 
| 303 |  | .~.~ Contact liquid applied in central gaseous flow path of concentric gaseous flow paths {2} | 
| 304 | DF | .~.~.~> Baffle, vane, or plate in outer gaseous flow path | 
| 305 | DF | .~.~.~> Baffle, vane, or plate in central gaseous flow path |