Packing with a cross channel structure for a material exchange column with a high specific separation performance

摘要

The packing (1) with cross channel structure for a material exchange column (2) should have a high specific separation performance. The packing is specifiable by a specific surface area, a, and an inclination angle of the passages, phi. It belongs to a class of packings with a=acl and phi=phicl in accordance with the following assertions:for fluids which flow in the packing, equally large fluid flows are in each case provided;a number n of theoretical separation stages per meter which can be empirically determined for the packing, namely the parameter NTSM, can be represented by a first function f1(a, phi) of the variables a and phi;a flow resistance which results for a gas flow which flows through the packing can be characterised by a pressure loss per meter, DELTAp, as a second function f2(a, phi;under the auxiliary condition n=const, DELTAp assumes a relative minimum for which the variables a and phi-in dependence on the parameter n-assume the values am(n) and phim(n) respectively;it is true that n4.5, aclam(n), phiclphim(n) and phicl45°.