Elementary Principles 70 - 4.38 (cont'd) Solvent m f 1:...

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4- 29 4.38 (cont’d) Solvent m f 1 kg S balance: kg S mf 2 balance: 3 balance: 2720+ C kg S kg S kg S kg S 2S :. : : . . . . . . 015 3300 495 3300 495 2805 015 495 495 015 2720 4826 27346 4804 27222 11 32 322 23 33 2 2 3 3 bg =⇒ = =+ = += +=+ U V | | W | | = = = = CC FF FC FCF C F C F SS S S S S S Holding Tank Contents 62 62 124 2805 27346 5540 .. . . kg leaf kg solvent b. Extraction Unit Steam Stripper 5540 0165 0835 kgS kgE / kg kgW / kg . . Q Q D F kgD kgF Q Q Q E D F kgE Q R kg kgE / kg 0.15kgF/ kg 0.855kgW / kg 013 . Q 0 0200 kg kgE / kg 0.026kgF/ kg 0.774kgW/kg . Q B kg kgE / kg 0.987kgW/kg 0013 . Q 3 kg steam Mass of D in Product : 1 kg D 620 kg leaf 1000 kg leaf kg D == 062 . Q D Water balance around extraction unit: 0835 5540 0855 5410 b g = ⇒= QQ RR kg Ethanol balance around extraction unit: 0165 5540 013 5410 211 b g = EE kg ethanol in extract c.
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