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Packed bed

I am answering to your request on "Wikipedia talk:WikiProject Chemical and Bio Engineering" page. I think we need:

• hystorical notes
• more pictures of packing elements used on packed bed, and a classification of them, respect to geometry, materials of construction, and a good table representing their physical properties and applications in which each of them are preferred
• a good description of wetting phenomenon, and data of wetting ratio for all types of packings and fluids
• a good description of void fraction, and data of void fraction for all types of packings
• to describe more precisely the equations to calculate pressure drop through packed bed, and demonstrate them
• a table and pictures representing advantages and disadvantages of packed bed column respect to the other contact systems.
• a good bibliografy and references

--Aushulz (talk) 18:49, 24 October 2008 (UTC)