"Structured Packing" refers to packing where the distribution and size of surface area and voids is uniform and regular. We searched the world to find the one producer who could meet our specification for exactly how to make a knitted copper mesh with just the right balance of voids and surface area.
The mesh is rolled into cylinders which are inserted into the distillation column. This structured mesh packing is several times more efficient than the closest standard packing material.
One pound of mesh is sufficient to pack 3 feet (1 meter) of 2" (50mm) diameter column. 2 pounds will pack 3 feet of 3" (75mm) diameter column.