Packing with improved capacity for rectification systems
AssigneePraxair Technology, Inc.
InventorsJohn F. Billingham, Michael J. Lockett
Life of this patent
Estimating the term…
Abstract
Improved capacity structured packing arranged in a section or brick wherein the packing in the base region of the section is configured differently from the structured packing in the bulk region making resistance to gas flow between the packing sheets in the base region less than resistance to gas flow between the sheets in the bulk region.
Claims17
A packing section comprising a plurality of vertically oriented diagonally cross corrugated packing sheets defining a section height, said section having a base region comprising up to the lower 50 percent of the section height, and a bulk region comprising at least some of the remainder of the section height, wherein the crimp height of the packing sheets in the base region is less than the crimp height of the packing sheets in the bulk region such that the resistance to gas flow between the sheets in the base region is less than the resistance to gas flow between the sheets in the bulk region.
A bed comprising a plurality of vertically stacked layers, with adjacent layers rotated around a vertical axis, each layer comprising a packing section comprising a plurality of vertically oriented diagonally cross corrugated packing sheets defining a section height, said section having a base region, comprising up to the lower 50 percent of the section height, and a bulk region comprising at least some of the remainder of the section height, said packing section having a flat top, wherein the crimp height of the diagonally cross corrugated packing sheets in the base region is less than the crimp height of the packing sheets in the bulk region such that the resistance to gas flow between the sheets in the base region is less than the resistance to gas flow between the sheets in the bulk region.
A method for countercurrent flow of gas and liquid comprising passing liquid down and passing gas up a bed comprising a plurality of vertically stacked layers, with adjacent layers rotated around a vertical axis, each layer comprising a packing section comprising a plurality of vertically oriented diagonally cross corrugated packing sheets defining a section height, said section having a base region, comprising up to the lower 50 percent of the section height, and a bulk region comprising at least some of the remainder of the section height, said packing section having a flat top and wherein the crimp height of the packing sheets in the base region is less than the crimp height of the packing sheets in the bulk region, and passing gas through the base region with lower gas flow resistance than gas passing through the bulk region.
Dependencies are inferred from the claim text.