ch11 - 11-1 CHAPTER 11 SOLUTIONS 11.1 Rich and Lean Stream...

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Unformatted text preview: 11-1 CHAPTER 11 SOLUTIONS 11.1 Rich and Lean Stream SummaryF(kg/s)ysor xsytor xtn (kg/s)R1 (off-gas) 0.2 0.002 0.0001 0.00038 L1 (additives) 0.08 0.003 0.006 0.00024 L2 (catalytic solution) 0.05 0.002 0.004 0.0001 L3 (organic oil) Unlimited 0.008 0.010 Unlimited Determine the minimum amount of organic oil required using the CI method. Rank order source and target mass fractions For each source and target mass fraction (boldface), determine closest mass fractions in other process phases [y = 0.25(xL1+ 0.0001), y = 0.5(xL2+ 0.0001)]. yxL1xL2R1 0.0020 0.0079* 0.0039 0.0001 0.0003 0.0001 L1 0.000775 0.003 0.00145* 0.001525 0.006 0.00295 L2 0.00105 0.0041 0.002 0.00205 0.0081* 0.004 * infeasible mass fraction (out of range) 11-2 Rank order mass fractions in rich phase y= 0.00205 [xL1,0= 0.0081*, xL2,0= 0.004] y1= 0.0020 [xL1,1= 0.0079*, xL2,1= 0.0039] y2= 0.001525 [xL1,2= 0.006, xL2,2= 0.00295] y3= 0.00105 [xL1,3= 0.0041, xL2,3= 0.002] y4= 0.000775 [xL1,4= 0.003, xL2,4= 0.00145*] y5= 0.0001 [xL1,5= 0.0003, xL2,5= 0.0001*] * infeasible mass fraction (out of range) Carry out mass balances in intervals Interval From Rich Streams (kg/s) To Lean Streams (kg/s) Excess (kg/s) R (kg/s) 1 - 0.05(0.004 - 0.0039) -510-6 -510-62 0.2(0.002 - 0.001525) 0.05(0.0039 - 0.00295)4.7510-54.2510-53 0.2(0.001525 - 0.00105) 0.08(0.006 - 0.0041) 0.05(0.00295 - 0.002) -1.04510-4-6.210-54 0.2(0.00105 - 0.000775) 0.08(0.0041 - 0.003) -3.310-5-9.510-5...
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This note was uploaded on 04/10/2008 for the course CHE 233W taught by Professor Debelak during the Spring '08 term at Vanderbilt.

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ch11 - 11-1 CHAPTER 11 SOLUTIONS 11.1 Rich and Lean Stream...

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