7/27/2019 Ammonia Recovery (2)

1/136

1

Modeling and Simulation

Example-1

Ammonia Recovery

7/27/2019 Ammonia Recovery (2)

2/136

2

7/27/2019 Ammonia Recovery (2)

3/136

3

7/27/2019 Ammonia Recovery (2)

4/136

4

Hysys environment

Stat new simulation

7/27/2019 Ammonia Recovery (2)

5/136

5

Simulation basis manager:

Enter primary simulation data likecomponent,

thermodynamic package, or

reactions.

7/27/2019 Ammonia Recovery (2)

6/136

6

Feed

Flowrate: 10000 lb/hr

Water: 20 wt%

AmmoniaSaturated vapor at 250 psia

Q=-5.8106 J

P=0

H=0

P=150 psia

Expansion valveCondenser Separator

Vapour

Liquid

Feed

Adiabatic flash

P=0 psia

Example 1:

We want to know what are the composition and flow rate of the

vapor and liquid stream?

7/27/2019 Ammonia Recovery (2)

7/136

7

Simulation procedure

Step one:

Define components

Step two: Choose thermodynamic

model

Step three:

Build simulation flow

diagram

Step four: Enter stream data

Step five:

Enter unit operation data

7/27/2019 Ammonia Recovery (2)

8/136

8

Feed

Flowrate: 10000 lb/hr

Water: 20 wt%

AmmoniaSaturated vapor at 250 psia

Q=-5.8106 J

P=0

H=0

P=150 psia

Expansion valveCondenser Separator

Vapour

Liquid

Feed

Adiabatic flash

P=0 psia

Example 1:

7/27/2019 Ammonia Recovery (2)

9/136

9

Simulation procedure

Step one:

Define components

Water

ammonia

Step two:

Choose thermodynamic model SRK

Step three:

Build simulation flow diagram

Step four:

Enter stream data Feed

Saturated vapor at P=250 psia

20 wt% water

80 wt% Ammonia

Mass Flow rate: 10000 (lb/hr)

Step five:

Enter unit operation data

Condenser

Q=-5.8*106 J

P=0 Psi Expansion valve

Isentropic process

P=150 Psi

Flash

Adiabatic flash

P=0 Psi

7/27/2019 Ammonia Recovery (2)

10/136

10

Feed

Flowrate: 10000 lb/hr

Water: 20 wt%

AmmoniaSaturated vapor at 250 psia

Q=-5.8106 J

P=0

H=0

P=150 psia

Expansion valveCondenser Separator

Vapour

Liquid

Feed

Adiabatic flash

P=0 psia

Example 1:

7/27/2019 Ammonia Recovery (2)

11/136

11

Starting Simulation

Add Components

Define Thermodynamic package

7/27/2019 Ammonia Recovery (2)

12/136

12

Simulation procedure

Step one:

Define components

Water

ammonia

Step two:

Choose thermodynamic model SRK

Step three:

Build simulation flow diagram

Step four:

Enter stream data Feed

Saturated vapor at P=250 psia

20 wt% water

80 wt% Ammonia

Mass Flow rate: 10000 (lb/hr)

Step five:

Enter unit operation data

Condenser

Q=-5.8*106 J

P=0 Psi

Expansion valve

Isentropic process

P=150 Psi

Flash

Adiabatic flash

P=0 Psi

7/27/2019 Ammonia Recovery (2)

13/136

13

Create new component list

7/27/2019 Ammonia Recovery (2)

14/136

14

Create new component listSearch and add library

components

Change the name of

new component list

7/27/2019 Ammonia Recovery (2)

15/136

15

Write the name of chemical

Formula of the componentWhen you find it click Add Pure

7/27/2019 Ammonia Recovery (2)

16/136

16

7/27/2019 Ammonia Recovery (2)

17/136

17

Write the name of chemical

Formula of the componentWhen you find it click Add Pure

7/27/2019 Ammonia Recovery (2)

18/136

18

All components were added

7/27/2019 Ammonia Recovery (2)

19/136

19

This step was completed

Component list view can be closed

7/27/2019 Ammonia Recovery (2)

20/136

20

Simulation procedure

Step one:

Define components

Water

ammonia

Step two:

Choose thermodynamic model SRK

Step three:

Build simulation flow diagram

Step four:

Enter stream data Feed

Saturated vapor at P=250 psia

20 wt% water

80 wt% Ammonia

Mass Flow rate: 10000 (lb/hr)

Step five:

Enter unit operation data

Condenser

Q=-5.8*106 J

P=0 Psi

Expansion valve

Isentropic process

P=150 Psi

Flash

Adiabatic flash P=0 Psi

7/27/2019 Ammonia Recovery (2)

21/136

21

Next step id defining

thermodynamic fluid package

Go to the Fluid Package section

7/27/2019 Ammonia Recovery (2)

22/136

22

Click Add to create new fluid package

7/27/2019 Ammonia Recovery (2)

23/136

23

To define Thermodynamic fluid package

Select if from the list

7/27/2019 Ammonia Recovery (2)

24/136

24

Choose SRK as

Thermodynamic fluid package

7/27/2019 Ammonia Recovery (2)

25/136

25

Close the Fluid package

7/27/2019 Ammonia Recovery (2)

26/136

26

Components and thermodynamic package were

defined now process flow diagram can be developed

7/27/2019 Ammonia Recovery (2)

27/136

27

Save your file

7/27/2019 Ammonia Recovery (2)

28/136

28

7/27/2019 Ammonia Recovery (2)

29/136

29

Draw simulation flow diagram

7/27/2019 Ammonia Recovery (2)

30/136

30

process flow diagram should e

developed in Simulation Environment

7/27/2019 Ammonia Recovery (2)

31/136

31

Simulation

environmentof HYSYS

Object Palette

7/27/2019 Ammonia Recovery (2)

32/136

32

7/27/2019 Ammonia Recovery (2)

33/136

33

Simulation procedure

Step one:

Define components

Water

ammonia

Step two:

Choose thermodynamic model SRK

Step three:

Build simulation flow diagram

Step four:

Enter stream data Feed

Saturated vapor at P=250 psia

20 wt% water

80 wt% Ammonia

Mass Flow rate: 10000 (lb/hr)

Step five:

Enter unit operation data

Condenser

Q=-5.8*106 J

P=0 Psi Expansion valve

Isentropic process

P=150 Psi

Flash

Adiabatic flash

P=0 Psi

7/27/2019 Ammonia Recovery (2)

34/136

34

Feed

Flowrate: 10000 lb/hr

Water: 20 wt%

AmmoniaSaturated vapor at 250 psia

Q=-5.8106 JP=0

H=0

P=150 psia

Expansion valveCondenser Separator

Vapour

Liquid

Feed

Adiabatic flash

P=0 psia

Example 1:

7/27/2019 Ammonia Recovery (2)

35/136

35

Feed

Flowrate: 10000 lb/hr

Water: 20 wt%

AmmoniaSaturated vapor at 250 psia

Q=-5.8106 J

P=0

H=0

P=150 psia

Expansion valveCondenser Separator

Vapour

Liquid

Feed

Adiabatic flash

P=0 psia

Example 1:

1

2 3

4

5

6

1, 2, 3, 4, and 5 are material stream

6 is energy stream

7/27/2019 Ammonia Recovery (2)

36/136

36

7/27/2019 Ammonia Recovery (2)

37/136

37

7/27/2019 Ammonia Recovery (2)

38/136

38

7/27/2019 Ammonia Recovery (2)

39/136

39

7/27/2019 Ammonia Recovery (2)

40/136

40

7/27/2019 Ammonia Recovery (2)

41/136

41

7/27/2019 Ammonia Recovery (2)

42/136

42

7/27/2019 Ammonia Recovery (2)

43/136

43

7/27/2019 Ammonia Recovery (2)

44/136

44

7/27/2019 Ammonia Recovery (2)

45/136

45

7/27/2019 Ammonia Recovery (2)

46/136

46

7/27/2019 Ammonia Recovery (2)

47/136

47

7/27/2019 Ammonia Recovery (2)

48/136

48

7/27/2019 Ammonia Recovery (2)

49/136

49

7/27/2019 Ammonia Recovery (2)

50/136

50

Input stream data and operatingconditions

Example 1:

7/27/2019 Ammonia Recovery (2)

51/136

51

Feed

Flowrate: 10000 lb/hr

Water: 20 wt%

AmmoniaSaturated vapor at 250 psia

Q=-5.8106 Btu/hrP=0

H=0

P=150 psia

Expansion valveCondenser Separator

Vapour

Liquid

Feed

Adiabatic flash

P=0 psia

Example 1:

7/27/2019 Ammonia Recovery (2)

52/136

52

Simulation procedure

Step one:

Define components

Water

ammonia

Step two:

Choose thermodynamic model SRK

Step three:

Build simulation flow diagram

Step four:

Enter stream data

Feed

Saturated vapor at P=250 psia

20 wt% water

80 wt% Ammonia

Mass Flow rate: 10000 (lb/hr)

Step five:

Enter unit operation data

Condenser

Q=-5.8*106 J

P=0 Psi

Expansion valve

Isentropic process

P=150 Psi

Flash

Adiabatic flash

P=0 Psi

Example 1:

7/27/2019 Ammonia Recovery (2)

53/136

53

Feed

Flowrate: 10000 lb/hr

Water: 20 wt%

AmmoniaSaturated vapor at 250 psia

Q=-5.8106 Btu/hrP=0

H=0

P=150 psia

Expansion valveCondenser Separator

Vapour

Liquid

Feed

Adiabatic flash

P=0 psia

Example 1:

Example 1:

7/27/2019 Ammonia Recovery (2)

54/136

54

Feed

Flowrate: 10000 lb/hr

Water: 20 wt%

AmmoniaSaturated vapor at 250 psia

Q=-5.8106 Btu/hrP=0

H=0

P=150 psia

Expansion valveCondenser Separator

Vapour

Liquid

Feed

Adiabatic flash

P=0 psia

Example 1:

7/27/2019 Ammonia Recovery (2)

55/136

55

7/27/2019 Ammonia Recovery (2)

56/136

56

7/27/2019 Ammonia Recovery (2)

57/136

57

7/27/2019 Ammonia Recovery (2)

58/136

58

7/27/2019 Ammonia Recovery (2)

59/136

59

7/27/2019 Ammonia Recovery (2)

60/136

60

7/27/2019 Ammonia Recovery (2)

61/136

61

7/27/2019 Ammonia Recovery (2)

62/136

62

7/27/2019 Ammonia Recovery (2)

63/136

63

7/27/2019 Ammonia Recovery (2)

64/136

64

7/27/2019 Ammonia Recovery (2)

65/136

65

Example 1:

7/27/2019 Ammonia Recovery (2)

66/136

66

Feed

Flowrate: 10000 lb/hr

Water: 20 wt%

Ammonia

Saturated vapor at 250 psia

Q=-5.8106 Btu/hrP=0

H=0

P=150 psia

Expansion valveCondenser Separator

Vapour

Liquid

Feed

Adiabatic flash

P=0 psia

Example 1:

7/27/2019 Ammonia Recovery (2)

67/136

67

7/27/2019 Ammonia Recovery (2)

68/136

68

7/27/2019 Ammonia Recovery (2)

69/136

69

Example 1:

7/27/2019 Ammonia Recovery (2)

70/136

70

Feed

Flowrate: 10000 lb/hr

Water: 20 wt%

Ammonia

Saturated vapor at 250 psia

Q=-5.8106

Btu/hrP=0

H=0

P=150 psia

Expansion valveCondenser Separator

Vapour

Liquid

Feed

Adiabatic flash

P=0 psia

p

7/27/2019 Ammonia Recovery (2)

71/136

71

7/27/2019 Ammonia Recovery (2)

72/136

72

Example 1:

7/27/2019 Ammonia Recovery (2)

73/136

73

Feed

Flowrate: 10000 lb/hr

Water: 20 wt%

Ammonia

Saturated vapor at 250 psia

Q=-5.8106

Btu/hrP=0

H=0

P=150 psia

Expansion valveCondenser Separator

Vapour

Liquid

Feed

Adiabatic flash

P=0 psia

p

7/27/2019 Ammonia Recovery (2)

74/136

74

Example 1:

7/27/2019 Ammonia Recovery (2)

75/136

75

Feed

Flowrate: 10000 lb/hr

Water: 20 wt%

Ammonia

Saturated vapor at 250 psia

Q=-5.8106

Btu/hrP=0

H=0

P=150 psia

Expansion valveCondenser Separator

Vapour

Liquid

Feed

Adiabatic flash

P=0 psia

p

We want to know what are the composition and flow rate of the vapor

and liquid stream?

7/27/2019 Ammonia Recovery (2)

76/136

76

7/27/2019 Ammonia Recovery (2)

77/136

77

7/27/2019 Ammonia Recovery (2)

78/136

78

7/27/2019 Ammonia Recovery (2)

79/136

79

7/27/2019 Ammonia Recovery (2)

80/136

80

S i i i l i

7/27/2019 Ammonia Recovery (2)

81/136

81

Sensitivity analysis

How does heat recovery in cooler change the

amount of ammonia recovery in process?

How does pressure drop in valve change the

amount of ammonia recovery in process?

7/27/2019 Ammonia Recovery (2)

82/136

82

Change heat recovery (independent variable)

Check the effect of ammonia recovery (dependent variable)

Change Pressure drop in valve (independent variable)

Check the effect of ammonia recovery (dependent variable)

7/27/2019 Ammonia Recovery (2)

83/136

83

Use spreadsheet for user defined

calculations in hysys

7/27/2019 Ammonia Recovery (2)

84/136

84

7/27/2019 Ammonia Recovery (2)

85/136

85

Input variables whichyou want to use for your calculations

7/27/2019 Ammonia Recovery (2)

86/136

86

7/27/2019 Ammonia Recovery (2)

87/136

87

7/27/2019 Ammonia Recovery (2)

88/136

88

7/27/2019 Ammonia Recovery (2)

89/136

89

7/27/2019 Ammonia Recovery (2)

90/136

90

Write the formula

7/27/2019 Ammonia Recovery (2)

91/136

91

S iti it l i

7/27/2019 Ammonia Recovery (2)

92/136

92

Sensitivity analysis

How does heat recovery in cooler change the

amount of ammonia recovery in process?

How does pressure drop in valve change the

amount of ammonia recovery in process?

7/27/2019 Ammonia Recovery (2)

93/136

93

Start case study

7/27/2019 Ammonia Recovery (2)

94/136

94

Change heat recovery (independent variable)

Check the effect of ammonia recovery (dependent variable)

7/27/2019 Ammonia Recovery (2)

95/136

95

Input variables for case study

7/27/2019 Ammonia Recovery (2)

96/136

96

7/27/2019 Ammonia Recovery (2)

97/136

97

7/27/2019 Ammonia Recovery (2)

98/136

98

7/27/2019 Ammonia Recovery (2)

99/136

99

7/27/2019 Ammonia Recovery (2)

100/136

100

Define the case study

7/27/2019 Ammonia Recovery (2)

101/136

101

Define independent and

dependent variables

7/27/2019 Ammonia Recovery (2)

102/136

102

7/27/2019 Ammonia Recovery (2)

103/136

103

Define the range for independent variable

7/27/2019 Ammonia Recovery (2)

104/136

104

7/27/2019 Ammonia Recovery (2)

105/136

105

7/27/2019 Ammonia Recovery (2)

106/136

106

7/27/2019 Ammonia Recovery (2)

107/136

107

7/27/2019 Ammonia Recovery (2)

108/136

108

Sensitivity analysis

7/27/2019 Ammonia Recovery (2)

109/136

109

Sensitivity analysis

How does heat recovery in cooler change the

amount of ammonia recovery in process?

How does pressure drop in valve change the

amount of ammonia recovery in process?

7/27/2019 Ammonia Recovery (2)

110/136

110

Change Pressure drop in valve (independent variable)

Check the effect of ammonia recovery (dependent variable)

7/27/2019 Ammonia Recovery (2)

111/136

111

7/27/2019 Ammonia Recovery (2)

112/136

112

7/27/2019 Ammonia Recovery (2)

113/136

113

7/27/2019 Ammonia Recovery (2)

114/136

114

7/27/2019 Ammonia Recovery (2)

115/136

115

7/27/2019 Ammonia Recovery (2)

116/136

116

7/27/2019 Ammonia Recovery (2)

117/136

117

7/27/2019 Ammonia Recovery (2)

118/136

118

Creating report in HYSYS

7/27/2019 Ammonia Recovery (2)

119/136

119

Creating report in HYSYS

When process simulation is completed usuallyit is necessary to create a report which can

contain information about

Process Process flow streams

Material streams and Energy streams

Unit operations

7/27/2019 Ammonia Recovery (2)

120/136

120

We want to have specific unit sets for report

Like:

Mass flowrate in lb/hr,Pressure in psia

7/27/2019 Ammonia Recovery (2)

121/136

121

7/27/2019 Ammonia Recovery (2)

122/136

122

7/27/2019 Ammonia Recovery (2)

123/136

123

7/27/2019 Ammonia Recovery (2)

124/136

124

7/27/2019 Ammonia Recovery (2)

125/136

125

7/27/2019 Ammonia Recovery (2)

126/136

126

7/27/2019 Ammonia Recovery (2)

127/136

127

7/27/2019 Ammonia Recovery (2)

128/136

128

7/27/2019 Ammonia Recovery (2)

129/136

129

7/27/2019 Ammonia Recovery (2)

130/136

130

7/27/2019 Ammonia Recovery (2)

131/136

131

7/27/2019 Ammonia Recovery (2)

132/136

132

7/27/2019 Ammonia Recovery (2)

133/136

133

7/27/2019 Ammonia Recovery (2)

134/136

134

7/27/2019 Ammonia Recovery (2)

135/136

135

7/27/2019 Ammonia Recovery (2)

136/136