It is desired to process 1000 kg/h of bran (A) from a cerealcontaining 20% oil and no solvent. Benzene is used as a solvent.Temperature and pressure are constant and equilibrium data areshown in the table. For countercurrent extraction where 662 kg/h ofpure solvent are admitted. A raffinate with 5% oil is obtained instep “n”. Determine the number of steps needed.
Data provided for bran oil extraction with benzene X CR X BR X AR 0 0.033 0.074 0.121 0.177 0.243 0.321 0.466 0.289 0.711 0.295 0.672 0.294 0.632 0.282 0.597 0.265 0.559 0.243 0.515 0.214 0.465 0.117 0.418
It is desired to process 1000 kg/h of bran (A) from a cereal containing 20% oil and no solvent. Benzene is used as a sol
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