Determine moles of steam if countercurrent tower is used

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Reference no: EM131310525

Benzene freed from coal gas in a scrubber is recovered by passing the benzene-wash oil solution through a tower in contact with steam.

The entering liquid stream contains 7 mol % benzene and the steam is benzene free. It is desired to recover 85% of the benzene by using a steam rate 1.4 times the minimum steam rate. A wash-oil (liquid solvent-benzene free) flow rate of 6.94 mol/s will be used.

Determine the required moles of steam if

a. a countercurrent tower is used;

b. a cocurrent tower is used.

Equilibrium data for the benzene-wash oil-steam system are as follows:-

1313_Table 7.jpg

Reference no: EM131310525

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