Split_00049 - 8.68 (contd) HCHO balance on distillation...

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8- 49 8.68 (cont’d) HCHO balance on distillation column (include the condenser + reflux stream within the system for this and the next balance): 19 89 0 262 759 77 .. . =⇒ = nn mol product CH OH balance on distillation column: 3 8 34 0 006 759 7 88 88 . . =+ = bg mol CH OH 3 CH OH balance on recycle mixing point: 3 nnn n 182 1 28 24 7 83 20 36 +=⇒= = . . . mol CH OH fresh feed 3 Summary of requested material balance results: nl n n 1 2 3 4 20 4 75.9 mol p 7 37.5 mol a = = = = . mol CH OH fresh feed roduct solution .88 mol CH OH recycle bsorber off - gas 3 3 Waste heat boiler: Refs: HCHO C v ,145 ° , CH OH C 3 v ° ; N 2 , O 2 , H 2 , H O 2 v at 25 ° C for product gas, H O triple point
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