Packing for mass transfer column

Abstract

A packing section includes a plurality of vertically oriented, diagonally cross-corrugated packing sheets defining a section height. The section height has a base region, a bulk region, and a top region. The base region has a first particular geometry different from the geometry of the bulk region. The top region has a second particular geometry different from the geometry of the bulk region, and different from the first particular geometry of the base region.

1 . A packing section comprising: 
 a plurality of vertically oriented diagonally cross-corrugated packing sheets defining a section height, said section having a base region, a bulk region and a top region;    wherein said base region has a first particular geometry different from a geometry of said bulk region; and    wherein said top region has a second particular geometry different from the geometry of said bulk region and different from the first particular geometry of said base region.    
     
     
         2 . The packing section of  claim 1  wherein said base region has a crimp height that is less than a crimp height of said bulk region and wherein the corrugations in said top region are steeper than in said bulk region.  
     
     
         3 . The packing section of  claim 2  wherein said base region is flat.  
     
     
         4 . The packing section of  claim 2  wherein said corrugations in said top region are vertical.  
     
     
         5 . A packing section comprising: 
 a plurality of vertically oriented, diagonally cross-corrugated packing sheets defining a section height, said section having a base region, a bulk region, and a top region;    wherein said bulk region includes a surface texturing; and    wherein at least a portion of at least one of said base region and said top region is void of surface texturing.    
     
     
         6 . The packing section of  claim 5  wherein corrugations in said base region are steeper than corrugations in said bulk region.  
     
     
         7 . The packing section of  claim 6  wherein said corrugations in said base region are vertical.  
     
     
         8 . The packing section of  claim 5  wherein said base region has a crimp height that is less than the crimp height of the bulk region.  
     
     
         9 . The packing section of  claim 8  wherein said base region is flat.  
     
     
         10 . The packing section of  claim 5  wherein corrugations in the top region are steeper than corrugations in said bulk region.  
     
     
         11 . The packing section of  claim 10  wherein said corrugations in said top region are vertical.  
     
     
         12 . The packing section of  claim 5  where at least a portion of both said base region and said top region is void of surface texturing.  
     
     
         13 . The packing section of  claim 5  wherein said surface texturing is fine fluting.  
     
     
         14 . The packing section of  claim 5  wherein said bulk region has a plurality of apertures and at least one of said base region and said top region is void of apertures.  
     
     
         15 . A packing section comprising: 
 a plurality of vertically oriented, diagonally cross-corrugated packing sheets defining a section height, said section having a base region, a bulk region, and a top region;    wherein said bulk region includes a surface texturing; and    wherein at least a portion of at least one of said base region and said top region includes generally vertical fluting.    
     
     
         16 . The packing section of  claim 15  wherein corrugations in the base region are steeper than corrugations in said bulk region.  
     
     
         17 . The packing section of  claim 16  wherein said corrugations in said base region are vertical.  
     
     
         18 . The packing section of  claim 15  wherein said base region has a crimp height that is less than the crimp height of the bulk region.  
     
     
         19 . The packing section of  claim 18  wherein said base region is flat.  
     
     
         20 . The packing section of  claim 15  wherein corrugations in said top region are steeper than corrugations in said bulk region.  
     
     
         21 . The packing section of  claim 15  where at least a portion of both said base region and said top region have generally vertical fluting.  
     
     
         22 . The packing section of  claim 15  wherein said surface texturing is generally horizontal fluting.