Answer / amit

1.It is easy to take side stream for intermediate heating and cooling in case of from tray column compare to packed column.
2.in case of packed column some times channeling of liquid stream occurs so to prevent it tray column cab be preffered.

Answer / mani

1.the selection of type of column is based on man design
constrains
2. if dia of column is less than 0.6 m packed bed is preffered
and it gives low pressure drop, high liquid hold up
3. tray column gives high pressure drop and suitable for dia
more than 0.6m

Answer / rajesh

no its not like that we can use any one of the column
depending upon our recruitment
because both are having the advantages and disadvantages
so if u need exactly why u need to specify teh exact
question

Answer / abhijit

Becoz of high pressur drop in packed columns.

Answer / bala

packed column only give high pressure drop and tray column is preferred because of its easy inspection and maintenance

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