In the manufacture of an active pharmaceutical ingredient (API), the API goes through a final purification step...

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Chemistry

In the manufacture of an activepharmaceutical ingredient (API), the API goes through a finalpurification step in which it is crystallized , filtered, andwashed. The washed crystals contain 47 wt% water. They are fed to atunnel dryer and leave the dryer at a rate of 165 kg/h containing5% adhered moisture. Dry air enters the dryer at 145Â°F and 1 atm,and the outlet air is at 130Â°F and 1 atm with a relative humidityof 50%. Calculate the rate (kg/h) at which the API enters the dryerand the volumetric flow rate (ft3/h) of inlet air.

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3.9 Ratings (650 Votes)

Given The washed crystals contain 47 wt water Therefore Crystal in feed F 100 47 53 after passing through dryer the of water 5 Therefore Crystal in product 100 5 95 The flow rate of product 165 kghr So we can say that the amount not percentage of crystal will be See Answer

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