Part 1: how to conduct an absorption process? 3) pacKings dumped packings stacked packings constructed packings porosity: 60-90% Lessing ring: fei eai fa) Berd sadie; (6)Intalox ad double-spiral ring: () tripe- spiral ring.Part 1: how to conduct an absorption process?(3) • packings – dumped packings – stacked packings – constructed packings • porosity: 60-90%