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HW11Solutions2009

HW11Solutions2009 - ChE 1503 Problem Set 11 Due Problem...

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Unformatted text preview: ChE 1503 , Problem Set 11 Due November 13, 2009 Problem 1. (20 Points) Using the data below, construct the following graphs: "i”Z (a) An equilateral ternary diagram of acetone as the solute, water as the carrier, and 1,1,2—trichloroethane as the solvent. Be sure to include the tie lines on the graph. “l??— (b) Compute the selectivity of the solute (pure acetone) for solvent (pure 1,1,2- trichloroethane) at each tie line. Then, plot selectivity versus the concentration of 1,1,2utrichloroethane in the carrier (pure water). Acetone-Waterul,1,24Trichloroethane Compositions 011 Phase Boundia Extract, wt% RafiEnate, wt% ' TrichEoroethane 10 55 50 40 30 20 ‘10 "Hugo-x] 0.5 Tie—line Data: _ Extract, wt% Raffinate, wt% - Acetone Acetone Problem 2. (25 Points) One thousand kilograms per hour of a 45 wt% acetone-in-water solution is to be extracted at 25°C in a continuous countercurrent system With pure 1,1,2- trichloroethane to obtain a raffinate containing 10 wt% acetone. Using equilateral ternary diagram from Problem 1, determine the following. "1 i (a) the minimum flow rate of solvent, v'r‘Z (b) the number of stages required for a solvent rate equal to 1.5 times the minimum ”Odc) the flow rate and composition of both the raffinate leaving the last stage and extract leaving the first stage, and iii/0.55m) the flow rate and composition of the raffinate leaving. thehsecond stage. . / lif'Zy Problem 3. (20 Points) {/For the conditions of Problem 2? find the number of stages required for the segaration using a MQCabe-Thiele diagramlPlot the operating line for the extractor on the McCabe-Thiele diagram for the condition of minimum solvent-to— , feed ratio?) 4:2” [Hintt Read section 8.4 of Seder and Henley to see how the McCabe—Thiele diagram is related to the equilateral triangle diagraml ' ku.........ulf.. .33.. a: g; . k ..x.~.:....¥ ... . ri, a... a]: .4 3,355: ‘55 g H . f1” .5. .f {aw ., ‘ , m“; .3? gar firms We afiefin -" - .- f 3.. ' 1' 5? fl hf)? NI fi-‘ifiqzi / fig WK m7; ‘éhfim . 49.; '5*§£Ab€.—. mC-fiifiéifi. . _ . 'I "9‘" Wm ' 2:; m fiiimgg if )6; Ni. 97:2 75:; fimfigfi C. . (mné’EQX; m'fltfif- ifl as IS &. ' . 6 7 Sal-van?) TCE m. Em: (.33) . EX Tire-"act? r fiafflmgfl Tfi.lé§i_. -./w::.. (a) Exf'mt- '7 £77 777 714%. 1:17: Eff-Lg: 73.) IEs-m’gg:§g Emffim’fii { s-ei‘ectivi se'ieciifityvaxs "1 2313" 120 :19!.) :86 - so 40. .23 . .G .I . «LE 2_ céfi¢-,.of’TCE' i . . ____:21,.~-_ . . . . ,. , 2:1,“ {11:5 Q}; 3;... 11153511111113. 31.... ”2.03 $8.11“) Pi.- $1 . _ 1. «3. 1 v; -- _ C _. . {.3 -. 1&3} Emigkfi Vi. 33311? $53.11.: {3311 1.- ‘Efi; mrfifi; 1.1 ,1; i’figifi‘fli ‘ 12..) (C R21} .' 3 : .1. .. .. . . . M. < . i: Kai”?! in? .- §.M D gratin? fig—11 .. = ._ 5. f- Exlfit‘idr 13111. if. L “:16; 5;";qu 73.3. 1? I V “4W f '1 T . . {3’1 Li}! S'éiia. ifig'fi'gé 5.3m . Vifliiam {ngeyig.€.fifi§flfi 1:111; 1 M5 1;; 3‘5 A: g £ WW 1—!- . fa. . «my 4": I :2 1‘- g... -’ % § . ‘ . I g E gfiifli ‘37 fig; 5 if}? i Jag-'1“ :1 £11.35; 3 {.2 Q1," 33"; si'fi'iv is“; f: 31.... fl I «u I 5. .. V“ [M ‘1 11:11:11 1 120:1 Egg/15-! @ ’10 C2056. 7% pom—t (Caz-1. (312.1111...) {ECLMCQ J 5925. Q 1.1311311111111113 .. g" 'r‘ f: it: E13111 111113.13: 51:»? 11 1 "2’ 11.: 3:; $33 I?" if. 5.. 11' v V . _ gem E Am 33%. wafikégs §$ \ Em E? wfix flu, £3“: wufifififi. 9%. W E \W...1W,, a?“ W1 g 3% fifisfimfi 7.25 Q g: Egg a )1, 4 . .M I N . U . ,4 E “262“.” 2W afié q. 30; . . . . .. .v flaw? . _ _, ,\fi x. ..\. w WV muffs”. a fiawgu E . ,fi (Lg mimy ?zzia- : g, é: gggfi ‘ f 5%: we . " j 7- mm: '11:: V'éiifisml has; 1”) 5F T A5,: ‘3’- M M; :3- 9(3- “5 f‘fiQQ :: [I Cm - In 4'3. ;/3:030 (Kid/a; car (jg-C)»; NBC): mg 'fl' b3 . w . $1: __._ . k (ii-1%) W me. Juan a .u...$.1.~uu,§ . 1/. x . 5% 'fbgfim . if JEEZViQY-a h . . if .1}; - [Dd-2“» $33.. I 3 Biflgflggwéfifi £31114 I1; ififtmi‘f’fi ._';(;t&'§y{; {$3.5ng 0'31 mt; ;!;;I’L€,_ é $35!“? -}’l41=fl_’_-‘3F’¥’1 is? fligfiiS ma --_"1 mm— ma . __0 44 ‘ - 1 03? Agxigiary McCabez-Th'iele diagram. 9¥€%\M,M‘“ V‘QJ‘LL “315;: '9}? , 'M'aqmimimaifig mqeférefiée' _“ __ _ m— , _ um fifeférénée a—-equ —_'{)p : ffi“ ...
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