Elementary Principles 371 - 9.19(cont'd Makeup water...

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9- 19 b. c. d. Makeup water required : 495,000 gal gal C H OH 25 gal mash 2.6 gal C H OH gal 25 −= × 46 360 49 10 4 , . Acres reqd. : gal C H OH bu 1 acre 1 batch 24 h 330 days batch 2.6 gal C H OH 101 bu h day 1 year acres year 46 360 1 18 1 175 10 5 , . C H O s) O g) CO g H O(l) kJ / mol CO H O C H O C H O kJ / mol CHO s ) HO l ) CHO H l 4 C O( g ) CHOH 4 C 12 22 11 2 2 2 c o c o f o 2f o o 12 22 11 f o 12 22 11 12 22 11 2 2 5 2 r o f o f o o 12 (( ( ) ± . ±± () ± ± ± . ( ) ± ± ( +→ + = =+ ⇒= + 12 11 56491 221714 4 4 Δ ΔΔ Δ Δ Δ Δ Δ H HH H H H H H HO HO= k J /m o l kJ 453.6 mol 0.9486 Btu 1 mol 1 lb - mole Btu / lb - mole Moles of maltose : lb solution 0.071 lb C H OH 1 lb - mole C H OH lb - mole C H O lb solution 46.1 lb C H OH 4 lb - mole C H OH lb - moles C H O lb - moles =F - 8 5 F ) = (1669 lb - moles)( 22 11 f o 2 r o m2 5 2 5 1 2 2 2 1 1 5 2 5 12 22 11 C H O 10 22 11 ) ± . ± . . . ± ( . −− =− × × =⇒ = = + Δ Δ Δ H H n QH m C rp 1845 1815 1 7811 10 4336 10 1 1 1669 95 7811 4 6 ξ DD ×+ × −× 10 4 336 10 095 89 10 46 7 Btu lb - mole lb lb - F F) = Btu heat transferred from reactor)
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This note was uploaded on 02/27/2012 for the course CHEMICAL E 312 taught by Professor Cheung during the Fall '11 term at The University of Akron.

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