Patent ID: 9108179
Filing Date: 2015-08-18
Classification: B01J,F25J

Abstract:
1. A column with exchange packing for the exchange of heat and/or of material between a descending liquid and an ascending gas, of the type comprising: a first exchange section comprising a lower packing portion and an upper packing portion, wherein the lower packing portion of the exchange section comprises at least one packing modulate that has a lower number of transfer units than at least one packing modulate of the upper packing portion of the first exchanger section; wherein said packing module of said lower portion differs from said packing module of said upper portion of the first exchange section in terms of at least one of the following factors: an intrinsic density of said lower portion; a structure of said lower portion; an angle at which channels of said lower packing portion are inclined with respect to the horizontal when the packing is a structured packing of the cross-corrugated type; a mean density over a cross section of the column of said lower packing portion; and a height of said lower packing portion.