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Split_00042

# Split_00042 - 9.33 Basis 17.1 m 3 10 3 L 273 K 5.00 atm 3 1...

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9- 42 9.33 Basis : 17.1 m L 273 K 5.00 atm 1 mol h 1 m 298 K 1.00 atm 22.4 L STP mol h feed 3 3 10 3497 3 a f = CO g H g CH OH g 2 3 b g b g b g + 2 , Δ Δ Δ ± ± ± . H H H r o f o CH OH g f o CO(g) 3 kJ mol = = − e j e j b g 90 68 127°C, 5 atm 25°C, 5 atm 2 (mol CH OH /h) n (mol CO/h) n 2 (mol H /h) n 3 3497 mol/h 0.333 mol CO/mol 0.667 mol H /mol 1 3 2 = –17.05 kW Q Let f = fractional conversion of CO (which also equals the fractional conversion of H 2 , since CO and H 2 are fed in stoichiometric proportion). CO reacted : = ( )( ) ( ) = ( ) 3497 mol CO feed mol react mol feed mol CO react 0 333 1166 . f f CH OH produced : 3 ² n f f 1 1166 = = 1166 mol CO react 1 mol CH OH 1 mol CO mol CH OH h 3 3 CO remaining : ² n f 2 1166 1 = a f mol CO h H remaining : mol H fed 1166 mol CO react 2 mol H react 1 mol CO react mol H h 2 2 2 2 ² . n f f 3 3497 0 667 2332 1 = = b gb g b g Reference states : CO(g), H g 2 b g , CH OH g 3 b g at 25 ° C Substance mol h kJ mol mol h kJ mol CO 1166 0 H CH OH in in out out 1 2 2 3 3 ² ± ² ± ± ± ±
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