Answer Happy

Posted: **Fri Jul 08, 2022 6:07 am**

: 3 A Fixed Bed Adsorber Of Silica Gel Is Used To Remove Water Vapour From An Air Stream Of Flowrate 0 2 M H For A Colu 1 (18.12 KiB) Viewed 21 times

: 3 A Fixed Bed Adsorber Of Silica Gel Is Used To Remove Water Vapour From An Air Stream Of Flowrate 0 2 M H For A Colu 2 (26.15 KiB) Viewed 21 times

: 3 A Fixed Bed Adsorber Of Silica Gel Is Used To Remove Water Vapour From An Air Stream Of Flowrate 0 2 M H For A Colu 3 (34.37 KiB) Viewed 21 times

3. A fixed bed adsorber of silica gel is used to remove water vapour from an air stream of flowrate 0.2 m³/h. For a column of length 0.56 m, the break point occurred at 25 min and the fraction of total capacity utilized to the break point is 0.75. Assuming that the flowrate of the air stream remains constant, determine the break-point time and the fraction of total capacity used up to the break point if a column of length 0.80 m is used instead.
Numerically, ₁-1 (1-0) dt If it is assumed that the breakthrough curve is symmetrical at c/c = 0.5 and t₂, t₁ = ts The usable capacity of the bed up to the break point time to (represented by the crosshatched area) is C tv = }(1- ) at 0 Co dt t
For a total bed length of H₁, Hg is the length of the bed used up to the break point tu HT H₂ = t₁ The length of unused bed, HUNB, represents the mass transfer zone and can be found by the unused fraction multiplied by the total length of the column tu HUND - (1-1. Hr = The total length of the column is then HT=HUNB + H₂