... in addition to curve structure of the packing. 3. Reduction in pressure drop attained by filament-shape ... easy handling to fill in and out.Gas absorption: SO 2 , SO 3 , NH 3 , CO 2 , H 2 S, HCl, ... Cl 2 , HF, NO X , organic solvents Gas stripping: NH 3 , ... in Cl 2 Applications H 2 SO 4 /Ammonium sulfate industry: SO 2 , SO 3 , NH 3 , Absorber, Scrubber Soda industry: ...