On the modeling of gas-phase mass-transfer in metal sheet structured packings

- Mellapak 250Y, 350Y, 452Y, 500Y correlation of gas mass-transfer coefficients.
- Lower power on gas velocity than predicted by wetted-wall column correlations.
- Wetted-wall column is experimental oversimplification of the structured packing.
- Fair amount of gas apparently does not follow the channels but flows around crimps.