1. Calculate the amount of heat required in E-101 to preheat the feed stream mixture (Stream B) from your previously calculated temperature (say, 46C) to 225C. Here you need to determine the boiling point temperatures of the individual vaporizing components (i.e. toluene and benzene), their corrected latent heats of vaporization (AHv) while being heated in E-101. Remember that the heat load consists of 8 individual terms (3 for benzene, 3 for toluene, 1 for H2 and 1 for CH4). You need to list all eight Q's calculated.
18 19 * Table 1.5 Flow Sunnmary Table for the Benzene Process Shown in Figure 1.3 (and Figure 1.5) Table 1.5: Flow summary Table for HAD process (continued...) Stream Number 1 2 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Temperatus 25 59 25 235 41 600 41 38 654 90 147 112 112 112 38 Pressure (bar) 1.90 25.8 25.5 25.2 255 25.0 255 23.9 240 26 28 31 25 33 23 25 28 Vapor Fraction 0.0 0.0 1.00 10 1.0 1.0 10 1.0 10 0.0 0.0 00 1.0 00 0.0 1.0 10 Mass Flow (ronne/h) 10,0 13.3 0.82 20.5 6.41 20.5 030 9.2 200 11.6 3.27 140 227 227 8.21 2.61 O Mole Flow (mol/h) 108.7 146.2 301.0 12044 758.8 12014 426 1100.5 12470 1422 357 1852 2907 2907 1056 3042 4.06 Component Mole Flow (mmol/h) 0.0 0.0 286.0 735.4 449.4 7354 651.9 6526 0.02 0.0 00 0.02 00 00 178.0 00 Metha 0.0 0.0 15.0 3173 3022 3173 1695 4383 4423 0.88 0.0 00 0.88 00 0.0 123.05 3.10 Eerszene 0.0 LO 0.0 76 7.6 037 955 1160 1063 11 1843 289.46 289 46 1052 2.85 0.25 Toluene 1087 143.2 0.0 144.0 0.7 144.0 0.04 1.05 360 35.0 34.6 0.8 122 122 0.4 0.31 000 29 0.0 115 1422 112 25 1.0 0.01 0.00 Hydrogen 252 0.02 0.88 1063 350 002 0.88 00 6.6 00 a Cp (kJ/mol.oC)= a + b T+ c T^2 + d T^3; T in oC for gases and K for liquids Component State Temperature units b d Toluene Liquid K 1.8083 0.81222 -1.51E-03 1.63E-06 Toluene Gas C 94.18 0.38 -2.79E-04 8.03E-08 Benzene Liquid K -7.27329 0.77054 -1.65E-03 1.90E-06 Benzene Gas C 74.06 0.3295 -2.52E-04 7.76E-08 Methane Gas C 34.31 0.05469 3.66E-06 -1.10E-08 Hydrogen Gas C 28.84 0.0000765 3.29E-06 -8.70E-10 Hydrodealkylation of toluene (HAD) process V-101 P.1014 8 E.101 Toliane Toksne Feed Feed Urun Feed Pumps Fred Pumps Premier H-101 Hae H-101 Reactor C-1011 E-102 Recycle CAR Reactor Ellen Congresso Cooker V-100 V.100 B.DE E-100 High Pres. Low Pres. Feed Benzere Prise Sophie Bep. Preheater Reoler T.101 Benze Colum F-104 V-104 P.COM E-106 Deneme Hefur eflue Pump Product Condenser Drum Decker KEY Temperature (C) Presoubor Mass Flow (1000) > Fuel Gas combustion producto T-101 . E-104 laurant E-103 09 R-101 V-102 0 Im (1.101 V- E-101 C-101AB 1 V-104 al 11 hydrogen P-1011 E-102 H-101 5-105 V-103 Banzone G E-105 P-102AD Tws Diges - Toute MIDA Process De Duc Check De April DEN Revideo Benzene via the Hydrodealkylation of Toluene Figure 1.5 Benzene Process Flow Diagrain (PFD) for the Production of Benzene via the Hydrodealkylation of Tolumne Tas yi P = = pamai Pati (1) PSUM Pati ml Cpl T-46) B T T yT+B=mole fraction 151.6 0.125872 3.209731 bar In (pp)-A-BTC) 3 T PP + Tb 3 Tb T 120 155 225 225 ' B T B T mi Cpv (225-Tb) H2 CHA ml Cp 225-46) PP 3.209731 ba P.A.B (THC) D T Tb 3 Th TH T 120 155 225 225 B T B T " (224- 694 Cp Q- AH=integ (Cp dT) TOCIK H2 CH4 mi Cp (225-46) B&T TB Tb 40 313 654 0 121893 2.925421 In ) - A.T-C) PP Tb 2 H2 & CH4 a 38
