Complete Energy BALANCE

CHAPTER 6

ENERGY BALANCE

6.1 IntroductionThe concept of energy conservation as stated by the energy balance equationis a middle of chemical engineering calculations. Just as mass balances are reviewed before, the energy balance is essential to solve many problems.

6.2 Equations Used in Calculations

6.2.1 General Equations

Q Ws = H + Ek + Ep (6.1)

The system kinetic energy associated with motion is directed such as straight line motion and rotation system. The potential energy of the system is due to the state of the object of mass at a certain height. However, we can ignore the kinetic energy, potential energy, and work for our system because it is static (Ek = 0), no change in height (Ep = 0), and no work on our system (Ws = 0). Thus Equation 6.1 can be further reduced to as Equation 6.2.

Q = H = Hout Hin (6.2)6.2.2 Equation for Reactive Process

H = Outlet ni ( i + f ) - Inlet ni (i + f) (6.3)

6.2.3 Equation for Process with Phase Changes

6.2.4 Equation for Non-Reactive

6.2.5 Equation for Heat Capacity, Cp

6.2.6 Total Heat for Energy Balance (non-reactive process)

HTotal = (HOutlet - HInlet) (6.8)

6.2.7 Total Heat for Energy Balance (reactive process)

HTotal = r + (HOutlet - HInlet) (6.9)

6.2.8 Equation Heat of Reaction

r = vf = products lvlf - reactants lvlf (6.10)

6.2.9 Equations Used in Calculation

Table 6.1 The Phase, Temperature and Pressure Change for i Component in Each Stream.

Heat Capacity of GasThe correlation for the heat capacity of gas is a series expansion in temperature:WhereCp = heat capacity of ideal gasA, B, C, D, and E = regression coefficients for chemical compoundsT = temperatureTable 6.2 Cp Coefficient for GasNameABCDE

Methyl Ethyl Ketone37.3692.304510-15.738710-6-8.816810-82.963710-11

Sec-Butanol22.4653.513410-1-1.285810-4-1.193110-81.294010-11

Hydrogen25.3992.017810-2-3.854910-53.188010-8-8.758510-12

Water33.933-8.418610-32.990610-5-1.782510-83.693410-12

1,1,2- Trichloroethane28.8812.489310-1-1.763910-45.263210-8-3.566810-12

Heat Capacity of LiquidThe correlation for the heat capacity of liquid is a series expansion in temperature:

WhereCp = heat capacity of liquidA, B, C, and D = regression coefficients for chemical compoundT = temperature From thermodynamics, the change in enthalpy, H, at constant pressure is

Table 6.3 Cp Coefficient for LiquidNameABCD

Methyl Ethyl Ketone61.4067.532410-1-2.381410-33.224010-6

Sec-Butanol95.0375.659310-1-1.825610-32.667510-6

Hydrogen50.607-6.11361003.093010-1-4.148010-3

Water92.053-3.995310-2-2.110310-45.346910-7

1,1,2- Trichloroethane34.9348.5054101-2.330610-32.645510-6

6.3 Calculation of Energy BalanceR-101

T1 = 703.15 KT2= 693.15 KP1 = 1.411 atmP2= 1.3126 atmSTREAMStream 5 (Inlet)Stream 6 (outlet)

COMPONENTnHnH

2-BUTANOL(2-B)106.8497H12.136994H2

MEK--104.7127H3

H2--104.7127H4

SBA (v, 298.15, 1 atm) SBA (v, 703.15, 1.411 atm)

SBA (v, 703.15, 1 atm)=

= 66305.95 kJ/kmol = (7919.999/4.37) =0.0018 kg/L = (1.411-1)(74.12 kg/kmol)(1/0.018 L/kg)(8.314 J/mol.K)(1/0.08206 mol.K/L.atm) = 171468.06/kmol 1/1000 kJ/J = 171.468 kJ/kmolH1 = (+) n H1 = (106.8497 kmol/hr)(66305.95 + 171.468 kJ/kmol) = 7103092.22 kJ/hr

SBA (v, 298.15 K, 1 atm) SBA (v, 693.15 K, 1.3126 atm)

SBA (v, 693.15 K, 1 atm)

=

= 64265 kJ/kmol

= (7919.999/9.17) = 0.000864 kg/L

= (1.3126-1)(74.12 kg/kmol)(1/0.000864 L/kg)(8.314 J/mol.K)(1/0.08206 mol.K/L.atm) = 2716996.94 J/kmol 1/1000 kJ/J = 2716.99 kJ/kmol

H2 = (+) n H2 = (2.136994kmol/hr)( 64265+ 2716.99 kJ/kmol) = 143120.02 kJ/hr

MEK (v, 298.15 K, 1 atm) MEK (v, 693.15 K, 1.3126 atm)

SBA (v, 693.15 K, 1 atm)=

= 56485.49 kJ/kmol

= (7919.999/9.17) = 0.000864 kg/L

= (1.3126-1)(72 kg/kmol)(1/0.000864 L/kg)(8.314 J/mol.K)(1/0.08206 mol.K/L.atm) = 2639284.67 J/kmol 1/1000 kJ/J = 2639.28 kJ/kmol

H2 = (+) n H2 = (104.7127 kmol/hr)( 56485.49 + 2639.28 kJ/kmol) = 6191114.3 kJ/hr

H2 (v, 298.15 K, 1 atm) H2 (v, 693.15 K, 1.3126 atm)

H2 (v, 693.15 K, 1 atm)=

= -287918039.9 kJ/kmol

= (7919.999/9.17) = 0.000864 kg/L

= (1.3126-1)(2 kg/kmol)(1/0.000864 L/kg)(8.314 J/mol.K)(1/0.08206 mol.K/L.atm) = 73313.46J/kmol 1/1000 kJ/J = 73.31kJ/kmol

H2 = (+) n H2 = (104.7127 kmol/hr)( 73.31 -287918039.9 kJ/kmol) = - kJ/hr

PUMP (B5)Stream1

PhaseLiquid

T ()298.15

P (atm)1

Stream28

PhaseLiquid

T ()298.197

P (atm)1.197

References:TCE (l, 298.15 K, 1 atm) Inlet and outlet unknown enthalpy for Pump (B5)Component(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)

TCE (l)4.99994.9999

Stream 1Since inlet stream is equal to the reference state,

TCE (l, 298.15 K, 1 atm) TCE (l, 298.197 K, 1.197 atm)Enthalpy for TCE outlet: = (667.0198/465.8271) =1.432 kg/L = (1.197-1)(133.40 kg/kmol)(1/1.432 L/kg)(8.314 J/mol.K)(1/0.08206 mol.K/L.atm) = 1859.335J/kmol 1/1000 kJ/J = 1.8593 kJ/kmol H2 = (4.9999 kmol/hr)(1.8593kJ/kmol) = 9.2963 kJ/hr

PUMP (B3) Stream24

PhaseLiquid

T ()298.1615

P (atm)1.197

Stream23

PhaseLiquid

T ()298.15

P (atm)1

References: H2O (l, 298.15 K, 1 atm) Inlet and outlet unknown enthalpy for Pump (B3)Component(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)

H2O (l)700.0001700.0001

Stream 23Since inlet stream is equal to the reference state,

H2O (l, 298.15 K, 1 atm) H2O (l, 298.1615 K, 1.197 atm)Enthalpy for H2O inlet: = (12610.7/12687.51) =0.994 kg/L = (1.197-1)(18 kg/kmol)(1/0.994 L/kg)(8.314 J/mol.K)(1/0.08206 mol.K/L.atm) = 351.71J/kmol 1/1000 kJ/J = 0.352 kJ/kmol H1 = (0.352 kmol/hr) (700.0001 kJ/kmol) = 252.98 kJ/hr

Heater (E-104)Stream12

PhaseLIQUID

T ()298

P (atm)2.62

Stream16

PhaseVAPOUR

T ()378

P (atm)2.62

References: MEK (l, 298 K, 1 atm), SBA (l, 298 K, 1 atm), H2(v, 298 K, 1 atm), H2O (l, 298 K, 1 atm), TCE (l, 298 K, 1 atm)Inlet and outlet unknown enthalpy for E-106Component(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)

MEK (l)10.383510.3835

SBA (l)0.06493120.0649312

H2(l)0.06221030.0622103

H2O (l)3.6506373.650637

TCE (l)

Stream 16 (SBA)SBA (l, 298 K, 1 atm) SBA (v, 378 K, 2.62 atm)

SBA(l, 372.70 K, 1 atm)SBA(v, 372.70 K, 1 atm) SBA(v, 378 K, 1 atm)

= 13480.4166 kJ/kmol= 40960 kJ/kmol= = [22.465T + 0.17567T2 + (-4.286 T3+ (-2.9828) T4+ (-2.588) T5] = 123.994 kJ/kmol = (819.5266/1.68 4.878 kg/L= (2.62-1)(74 kg/kmol)(1/4.878 L/kg)(8.314 J/mol.K)(1/0.08206 mol.K/L.atm) = 2489.9kJ/kmol = = 57054.3 kJ/kmolH16 = () n = 57054.3 kJ/kmol 0.0649312 kmol/hr = 3704.6 kJ/hr

Stream 16 (MEK)MEK (l, 298 K, 1 atm) MEK (v, 378 K, 2.62 atm)

MEK(l, 352.79 K, 1 atm)MEK(v, 352.79 K, 1 atm) MEK(v, 378 K, 1 atm)

= 4371.72 kJ/kmol= 31220 kJ/kmol= = [942.072 + 73.215 +0.03065+ (-8.903 + (6.036)] = 1015.31 kJ/kmol = 4.878 kg/L= (2.62-1)(72 kg/kmol)(1/4.878 L/kg)(8.314 J/mol.K)(1/0.08206 mol.K/L.atm) = 2422kJ/kmol = = 39029.02 kJ/kmolH16 = () n = 39029.02 kJ/kmol 10.3835 kmol/hr = 405257.83 kJ/hrStream 16 (H2O) H2O (l, 298 K, 1 atm) H2O (v, 378 K, 2.62 atm)

H2O (l, 373 K, 1 atm) H2O (v, 373 K, 1 atm) H2O (v, 378 K, 1 atm)

= = [92.053T + (-0.01997)T2 + (-7.034 T3+ (1.3367) T4] = 6766.198kJ/kmolb =HV = 39.5 kJ/mol= = [33.933T + (-4.209)T2 + (9.9686 T3+ (-4.456) T4+ (-7.3868) T5] = 169.5610 kJ/kmol = 4.878 kg/L= (2.62-1)(18 kg/kmol)(1/4.878 L/kg)(8.314 J/mol.K)(1/0.08206 mol.K/L.atm) = 605653.49kJ/kmol = = 652089.249 kJ/kmolH16 = () n = 652089.249 kJ/kmol 3.650637kmol/hr = 2380541.14 kJ/hr

Stream 16 (H2) H2 (g, 298 K, 1 atm) H2 (g, 378 K, 2.62 atm)

H2 (g, 378 K, 1 atm)

= = 2031.92 + 64.5696 6.5786 + 0.3265 57.396 = 2032.842 kJ/kmol = 4.878 kg/L= (2.62-1)(2 kg/kmol)(1/4.878 L/kg)(8.314 J/mol.K)(1/0.08206 mol.K/L.atm) = 67.29kJ/kmol = 2100kJ/kmolH16 = () n = 2100kJ/kmol 0.0622103 kmol/hr = 130.64163 kJ/hr

Furnace (H-101)

Stream4

PhaseVapor

T ()140

P (atm)1.47

Stream5

PhaseVapor

T ()430

P (atm)1.44

Reference: SBA (l, 25, 1 atm)

Inlet and outlet unknown enthalpy for H-101Component(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)

SBA (v)106.8494106.8494

Stream 4

SBA (v, 99.7, 1 atm)SBA (v, 140, 1 atm)SBA (l, 25, 1 atm)SBA (v, 140, 1.47 atm)SBA (l, 99.7, 1 atm)

Stream 5Pressure change from 1.47 atm to 1.44 atm is negligible.

Inlet and outlet enthalpy for H-101Component(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)

SBA (v)106.849451666.16106.8494

Heater (E-104)Stream22

PhaseLiquid

T ()95

P (atm)1

Stream18

PhaseLiquid

T ()25

P (atm)1

References: MEK (l, 25, 1 atm), SBA (l, 25, 1 atm), H2 (v, 25, 1 atm), H2O (l, 25, 1 atm), TCE (l, 25, atm)

Inlet and outlet unknown enthalpy for E-104Component(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)

MEK (l)10.383510.3835

SBA (l)0.06490.0649

H2 (l)0.06220.0622

H2O (l)697.5673697.5673

TCE (l)0.0230.023

Stream 18Since inlet stream is equal to the reference state,

Stream 22

Enthalpy for MEK outlet:

Enthalpy for SBA outlet:

Enthalpy for H2 outlet:

Enthalpy for H2O outlet:

Enthalpy for TCE outlet:

Inlet and outlet enthalpy for E-104Component(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)

MEK (l)10.3835010.38355890.94

SBA (l)0.06490.06497846.40

H2 (v)0.06220.06221823.15

H2O (l)697.5673697.56736324.91

TCE (l)0.0230.0233021.84

Pump (B4)Stream17

PhaseLiquid

T ()25

P (atm)1

Stream26

PhaseLiquid

T ()25

P (atm)1.2

References: MEK (l, 25, 1 atm), SBA (l, 25, 1 atm), H2 (v, 25, 1 atm), H2O (l, 25, 1 atm), TCE (l, 25, 1 atm)

Inlet and outlet unknown enthalpy for Pump (B4)Component(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)

MEK (l)0.58020.5802

SBA (l)0.00320.0032

H2 (v)0.00050.0005

H2O (l)0.07970.0797

TCE (l)4.9774.977

Stream 17Since inlet stream is equal to the reference state,

Stream 26 Enthalpy for MEK outlet:

Enthalpy for SBA outlet:

Enthalpy for H2 outlet:

Enthalpy for H2O outlet:

Enthalpy for TCE outlet:

Inlet and outlet enthalpy for Pump (B4)Component(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)

MEK (l)0.58020.58021.0689

SBA (l)0.00320.00321.0987

H2 (v)0.00050.00050.0299

H2O (l)0.07970.07970.2688

TCE (l)4.9774.9771.9774

Distillation Column (T-101)Stream22

PhaseLiquid

T ()95

P (atm)1

Stream16

PhaseLiquid

T ()105

P (atm)2.65

Stream19

PhaseVapor

T ()130

P (atm)2.65

References: MEK (l, 25, 1 atm), SBA (l, 25, 1 atm), H2 (v, 25, 1 atm), H2O (l, 25, 1 atm), TCE (l, 25, 1 atm)Inlet and outlet unknown enthalpy for T-101Component(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)

MEK 10.38350.000010.3835

SBA 0.06490.00000.0649

H2 0.06220.00000.0622

H2O 697.5673693.91663.6504

TCE 0.02300.02230.0007

Stream 22 Enthalpy for MEK inlet:

Enthalpy for SBA inlet:

Enthalpy for H2 inlet:

Enthalpy for H2O inlet:

Enthalpy for TCE inlet:

Stream 19

H2O (v, 100, 1 atm)H2O (v, 130, 1 atm)H2O (l, 25, 1 atm)H2O (v, 130, 2.65 atm)H2O (l, 100, 1 atm)

TCE (v, 113.8, 1 atm)TCE (v, 130, 1 atm)TCE (l, 25, 1 atm)TCE (v, 130, 2.65 atm)TCE (l, 113.8, 1 atm)

Stream 16n (l, 130, 1 atm)n (l, 25, 1 atm)n (l, 130, 2.65 atm)

Where i = 11, 12, 13, 14, and 15.

Enthalpy of n = MEK

Enthalpy for n = SBA

Enthalpy for n = H2

Enthalpy for n = H2O

Enthalpy for n = TCE

Inlet and outlet enthalpy for T-101Component(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)

MEK 10.38355890.940.000010.383512239.06

SBA 0.06497846.400.00000.064915003.97

H2 0.06221823.150.00000.06222832.98

H2O 697.56736324.91693.916647284.023.65049994.24

TCE 0.02303021.840.022364773.700.000710430.59

Extraction Column (V-103)Stream17

PhaseLiquid

T ()299.1418

P (bar)1.01

Stream28

PhaseLiquid

T ()298.1970

P (bar)1.197384

Stream15

PhaseLiquid

T ()298.15

P (bar)1.164569

Stream18

PhaseLiquid

T ()298.1992

P (bar)1.01

Reference: SBA (l, 25, 1 bar)

Inlet and outlet unknown enthalpy for V-103Stream 28Component(mol/hr)(kJ/mol) (kJ/hr)

TCE (l)4999.9991.585

TCE (l, 298.15K, 1bar barbar)TCE (l, 298.1970, 1.197384 bar)TCE (l, 298.1970 K, 1 bar)

+

Stream 15

Component(mol/hr)(kJ/mol) (kJ/hr)

MEK (l)10963.6912.220

SBA68.08500.587

Hydrogen138.18360.00429

Water697647.30.5984

TCE2.13658x10-62.357x10-8

For MEKMEK (l, 298.15 K, 1 bar)MEK (l, 298.15K, 1.164569 bar)

For SBASBA (l, 298.15 K, 1 bar)SBA (l, 298.15K, 1.164569 bar)

For HydrogenH2 (l, 298.15 K, 1 bar)H2 (l, 298.15K, 1.164569 bar)

For WaterH2O (l, 298.15 K, 1 bar)H2O (l, 298.15K, 1.164569 bar)

For TCETCE (l, 298.15 K, 1 bar)TCE (l, 299.1418K, 1 bar)

Stream 17

Component(mol/hr)(kJ/mol) (kJ/hr)

MEK (l)580.183635.55

SBA3153.71x10-30.298

Hydrogen1033.35x10-30.0489

Water79.68547.273

TCE4976.97454.9

For MEK

MEK (l, 298.15 K, 1 bar)MEK (l, 299.1418K, 1 bar)

For SBA

SBA (l, 298.15 K, 1 bar)SBA (l, 299.1418K, 1bar)

For Hydrogen

H2 (l, 298.15 K, 1 bar)H2 (l, 299.1418K, 1bar)

For Water

H2O (l, 298.15 K, 1 bar)H2O (l, 299.1418K, 1bar)

For TCE

H2O (l, 298.15 K, 1 bar)H2O (l, 299.1418K, 1bar)

Stream 18

Component(mol/hr)(kJ/mol) (kJ/hr)

MEK (l)10383.431.38

SBA64.93120.31

Hydrogen62.21030.155

Water697567.53159.3

TCE23.02710.01266

For MEK

MEK (l, 298.15 K, 1 bar)MEK (l, 298.1992K, 1 bar)

For SBA

SBA (l, 298.15 K, 1 bar)SBA (l, 298.1992K, 1bar)

For Hydrogen

H2 (l, 298.15 K, 1 bar)H2 (l, 299.1418K, 1bar)

For Water

H2O (l, 298.15 K, 1 bar)H2O (l, 298.1992K, 1bar)

For TCE

H2O (l, 298.15 K, 1 bar)H2O (l, 298.1992K, 1bar)

Mixer (B-17)

Stream9

PhaseLiquid

T ()299.113

P (bar)1.01

Stream20

PhaseLiquid

T ()297.9664

P (bar)1.01

Stream10

PhaseLiquid

T ()298.15

P (bar)1.233654

Stream 20

Component(mol/hr)(kJ/mol) (kJ/hr)

MEK (l)10383.5-116.93

SBA64.9312-1.129

Hydrogen137.1503-1.29

Water3650.637-61.7

TCE0.742274-0.00148

For MEK

MEK (l, 298.15 K, 1 bar)MEK (l, 297.9664K, 1 bar)

For SBA

SBA (l, 298.15 K, 1 bar)SBA (l, 297.9664K, 1bar)

For Hydrogen

H2 (l, 298.15 K, 1 bar)H2 (l, 297.9664K, 1bar)

For Water

H2O (l, 298.15 K, 1 bar)H2O (l, 2979664K, 1bar)

For TCE

H2O (l, 298.15 K, 1 bar)H2O (l, 297.9664K, 1bar)

Stream 9

Component(mol/hr)(kJ/mol) (kJ/hr)

MEK (l)11175.17-25.37

SBA65.1248-0.228

Hydrogen230835.4-438.59

Water--

TCE-

For MEK

MEK (l, 298.15 K, 1 bar)MEK (l, 298.113K, 1 bar)

For SBA

SBA (l, 298.15 K, 1 bar)SBA (l, 298.113K, 1bar)

For Hydrogen

H2 (l, 298.15 K, 1 bar)H2 (l, 298.113K, 1bar)

Stream 10

Component(mol/hr)(kJ/mol) (kJ/hr)

MEK (l)93537.55150856

SBA2071.8693433.7

Hydrogen16.61590.7492

Water--

TCE-

For MEKMEK (l, 298.15 K, 1 bar)MEK (l, 298.15K, 1.233654 bar)

For SBASBA (l, 298.15 K, 1 bar)SBA (l, 298.15K, 1.233654bar)

For HydrogenH2 (l, 298.15 K, 1 bar)H2 (l, 298.15K, 1.233654 bar)

Condenser (E-103)Stream7

PhaseVapor

T (K)428.4892

P (atm)1.28

Stream8

PhaseMixer

T (K)298.15

P (atm)1.26

Table 3 Inlet and Outlet (Unknown) enthalpy for the condenser (E-103)CompoundsStream 7Stream 8 (Vapor)Stream 8 (Liquid)

(kmol/hr)(kJ/kmol) (kmol/hr)(kJ/kmol) (kmol/hr)(kJ.kmol)

MEK104.7172111.1752493.53767

SBA2.137020.065152.07198

H2104.71723104.705267.5410-39

Change in pressure is negligible since the pressure at stream 7 and stream 8 is approximately same and the change is small.

Stream 7 (Inlet)Enthalpy for MEK inlet:

Enthalpy for SBA inlet:

Enthalpy for H2 inlet:

Therefore, the total enthalpy flow and relative error for vapor phase in inlet stream is:

Stream 8 (Outlet): Vapor PhaseEnthalpy for MEK outlet:

Enthalpy for SBA outlet:

Enthalpy for H2 outlet:

Therefore, the total enthalpy flow for vapor phase in outlet stream is:

Stream 8 (Outlet): Liquid PhaseWatson Correlation:

Enthalpy for MEK outlet:

Enthalpy for SBA outlet:

Enthalpy for H2 outlet:

Therefore, the total enthalpy flow for liquid phase in outlet stream is:

The enthalpy flow and relative error for oulet stream (liquid phase + vapor phase):

Therefore, the heat duty of the condenser is:

Table 4 Inlet and Outlet enthalpy for condenser (E-103)CompoundsStream 7Stream 8 (Vapor)Stream 8 (Liquid)

(kmol/hr)(kJ/kmol) (kmol/hr)(kJ/kmol) (kmol/hr)(kJ.kmol)

MEK104.7172-220245.70511.1752-238344.3393.5376-272819.521

SBA2.1370-271500.0450.0651-292272.6672.0719-339515.85

H2104.717211446.054104.70524.314557.5410-34.31455

Separator (V-101)Stream8

PhaseMixed

T (K)298.15

P (atm)1.26

Stream11

PhaseVapor

T (K)298.15

P (atm)1.23

V-101

Stream10

PhaseLiquid

T ()298.15

P (bar)1.23

CompoundsStream 8 (Liquid)Stream 8 (Vapor)Stream 10 (Liquid)Stream 11 (Vapor)

n(kmol/hr)H(kJ/kmol)n(kmol/hr)H(kJ/kmol)n(kmol/hr)H(kJ/kmol)n(kmol/hr)H (kJ/ kmol)

MEK93.5376-272819.52111.1752-238344.3393.5376111.17524

SBA2.0719-339515.850.0651-292272.6672.071920.06515

H27.5410-34.31455104.70524.314557.5410-33104.70526

Stream 10: Liquid phaseEnthalpy of MEK outlet:

Enthalpy of SBA outlet:

Enthalpy of H2 outlet:

Therefore, the enthalpy flow of stream 10 is:

Stream 11: Vapor phase

Enthalpy of MEK outlet:

Enthalpy of SBA outlet:

Enthalpy of H2 outlet:

Therefore, the enthalpy flow of stream 11 is:

Therefore, the heat duty of the condenser is:

CompoundsStream 8 (Liquid)Stream 8 (Vapor)Stream 10 (Liquid)Stream 11 (Vapor)

(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)(kmol/hr) (kJ/ kmol)

MEK93.5376-272819.52111.1752-238344.3393.5376-10.265911.1752-625.5665

SBA2.0719-339515.850.0651-292272.6672.0719-12.63520.0651-402.0604

H27.5410-34.31455104.70524.314557.5410-3-3625.7978104.7052-0.25075

Mixer (B-19)Stream26

PhaseLiquid

T (K)299.1844

P (atm)1.2

Stream23

PhaseLiquid

T (K)298.1615

P (atm)1.2

Stream25

PhaseLiquid

T (K)298.0686

P (atm)1.2

The changes of temperature is negligible since the temperature of all stream is approximately same.CompoundsStream 26Stream 23Stream 25

(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/kmol)(kmol/hr)(kJ/ kmol)

MEK0.5802--0.5802

SBA3.1510-3--3.1510-3

H24.6910-4--4.6910-4

H2O0.07969700.0001700.0799

TCE4.97697--4.97697