project 2 - adetayo tiakor
Post on 13-Feb-2018
215 Views
Preview:
TRANSCRIPT
-
7/23/2019 Project 2 - Adetayo Tiakor
1/23
Lamar University
Department of Chemical Engineering
Fundamentals of Sustainability
Project-2 Hazardous Waste Incineration Process
Group Members
STEPHEN TIAKOR (L20395298)
ADENIJI ADETAYO (L20383646)
-
7/23/2019 Project 2 - Adetayo Tiakor
2/23
2
Table of ContentsTable of Figures ....................................................................................................................................... 2
List of Tables ........................................................................................................................................... 3
1.0 Problem Statement: .................................................................................................................... 4
2.0 System Description: .................................................................................................................... 5
3.0 Solution: ...................................................................................................................................... 5
3.1 PART 1: Initial Conditions ........................................................................................................ 5
3.1.1 Step 1: Selection of components .................................................................................... 5
3.1.2 Step 2: Entering components .......................................................................................... 6
3.1.3 Step 3: NC PropertyHeat of Combustion .................................................................... 6
3.1.4 Step 4: Property Methods - Ash ...................................................................................... 7
3.1.5 Step 5: Property Methods - Coal ..................................................................................... 7
3.1.6 Step 6: NC Solid - Attribute ID - Proxanal ........................................................................ 8
3.1.7 Step 7: NC Solid - Attribute ID - Ultanal .......................................................................... 8
3.1.8 Step 8: NC Solid - Attribute ID - Sulfanal ......................................................................... 9
3.2 PART 2: Flowsheet .................................................................................................................. 9
3.3 PART 3: Blocks Specification ................................................................................................. 10
3.3.1 Step 1: Yield Reactor Conditions ................................................................................... 10
3.3.2 Step 2: Yield Reactor Components ............................................................................... 10
3.3.3 Step 3: Gibbs Reactor Conditions.................................................................................. 11
3.3.4 Step 4: Gibbs Reactor Components .............................................................................. 11
3.3.5 Step 5: Cyclone Splitter Specifications .......................................................................... 12
3.3.6 PART 4: Results ............................................................................................................. 12
4.0 Conclusion: ................................................................................................................................ 23
Table of FiguresFigure 1 - Component Selection .............................................................................................................. 5
Figure 2 - Entering components .............................................................................................................. 6
Figure 3 - NC PropertyHeat of Combustion ........................................................................................ 6
Figure 4 - Property Methods - Ash .......................................................................................................... 7
Figure 5 - : Property Methods - Coal ....................................................................................................... 7
Figure 6 - : NC Solid - Attribute ID - Proxanal .......................................................................................... 8
Figure 7 - NC Solid - Attribute ID - Ultanal .............................................................................................. 8
Figure 8 - NC Solid - Attribute ID - Sulfanal ............................................................................................. 9
-
7/23/2019 Project 2 - Adetayo Tiakor
3/23
3
Figure 9 - : Flowsheet .............................................................................................................................. 9
Figure 10 - Yield Reactor Conditions ..................................................................................................... 10
Figure 11 - Yield Reactor Components.................................................................................................. 10
Figure 12 - Gibbs Reactor Conditions ................................................................................................... 11
Figure 13 - Gibbs Reactor Components ................................................................................................ 11
Figure 14 - Cyclone Splitter Specifications ............................................................................................ 12
List of TablesTable 1 - Yield Reactor - 600C ............................................................................................................... 12
Table 2 - Gibbs Reactor: 6000C ............................................................................................................. 15
Table 3 - Gibbs Reactor: 700C ............................................................................................................... 18
Table 4 - Gibbs Reactor: 800C ............................................................................................................... 21
-
7/23/2019 Project 2 - Adetayo Tiakor
4/23
4
1.0 Problem Statement:Develop an Aspen Plus flowsheet for the simulation of the core part a hazardous waste
incineration process. Submit the report file in word and the Aspen Plus file. Both the
electronic submission and hard copy are expected.
Your group can choose topic A or B.
Capacity: 30 ton/day, 10000 ton/year. Operation hour/year: 8000.
Waste feedstock Ultimate analysis ( weight %):
Carbon Hydrogen Oxygen Nitrogen Sulphur Chlorine
56.156% 8.522% 21.409% 0.145%0.645
0%0.5%
Moisture Ash VolatilesFixed
Carbon
7.345% 5.278% 79.811% 7.569%
Lower heating value of the waste feedstock: 25.652 MJ/kg
B. It consists of a fixed bed pyrolysis chamber as the primary combustion chamber,
followed by a secondary combustion chamber. Simulate the product distribution when
the pyrolysis incinerator operates at 600 oC, 700, 800oC respectively. Percent of
excess air: 30%.
-
7/23/2019 Project 2 - Adetayo Tiakor
5/23
5
2.0 System Description:The following is a report on the Hazardous Waste Incineration Process carried out using
Aspen Plus v 8.0. The feed consists of waste feedstock which has to be incinerated using a
fixed bed pyrolysis chamber as the primary combustion chamber, followed by a secondary
combustion chamber. The feedstock enters the Yield Reactor, the output of which goes to theGibbs reactor where 30% excess air is fed. The product from the Gibbs reactor is sent to the
cyclone separator from where the gaseous and liquid leftover streams are withdrawn. This
problem solution with the detailed procedure is presented here.
3.0 Solution:
3.1
PART 1: Initial Conditions
3.1.1 Step 1: Selection of components
Figure 1 - Component Selection
-
7/23/2019 Project 2 - Adetayo Tiakor
6/23
6
3.1.2 Step 2: Entering components
Figure 2 - Entering components
3.1.3
Step 3: NC Property
Heat of Combustion
Figure 3 - NC PropertyHeat of Combustion
-
7/23/2019 Project 2 - Adetayo Tiakor
7/23
7
3.1.4 Step 4: Property Methods - Ash
Figure 4 - Property Methods - Ash
3.1.5 Step 5: Property Methods - Coal
Figure 5 - : Property Methods - Coal
-
7/23/2019 Project 2 - Adetayo Tiakor
8/23
8
3.1.6 Step 6: NC Solid - Attribute ID - Proxanal
Figure 6 - : NC Solid - Attribute ID - Proxanal
3.1.7 Step 7: NC Solid - Attribute ID - Ultanal
Figure 7 - NC Solid - Attribute ID - Ultanal
-
7/23/2019 Project 2 - Adetayo Tiakor
9/23
9
3.1.8 Step 8: NC Solid - Attribute ID - Sulfanal
Figure 8 - NC Solid - Attribute ID - Sulfanal
3.2 PART 2: Flowsheet
Figure 9 - Flowsheet
-
7/23/2019 Project 2 - Adetayo Tiakor
10/23
10
3.3
PART 3: Blocks Specification
3.3.1 Step 1: Yield Reactor Conditions
Figure 10 - Yield Reactor Conditions
3.3.2
Step 2: Yield Reactor Components
Figure 11 - Yield Reactor Components
-
7/23/2019 Project 2 - Adetayo Tiakor
11/23
11
3.3.3 Step 3: Gibbs Reactor Conditions
Figure 12 - Gibbs Reactor Conditions
3.3.4 Step 4: Gibbs Reactor Components
Figure 13 - Gibbs Reactor Components
-
7/23/2019 Project 2 - Adetayo Tiakor
12/23
12
3.3.5 Step 5: Cyclone Splitter Specifications
Figure 14 - Cyclone Splitter Specifications
3.3.6 PART 4: Results
Conditions:
Yield Reactor - 6000C
Table 1 - Yield Reactor - 600C
PRODUCT
Substream: MIXED
Mole Flow kmol/hr
HYDROGEN 27.28337
OXYGEN 4.570484
NITROGEN 0.580078
WATER 7.285482
CO 0
CO2 0
H2S 0
METHANE 0
C 62.23462
AMMONIA 0
S 0.428803
CHLORINE 0
Total Flow kmol/hr 102.3828
Total Flow kg/hr 1110Total Flow l/min 47947.36
-
7/23/2019 Project 2 - Adetayo Tiakor
13/23
13
Temperature K 873.15
Pressure atm 1
Vapor Frac 0.392138
Liquid Frac 0
Solid Frac 0.607862
Enthalpy cal/mol -677.795
Enthalpy cal/gm -62.5177
Enthalpy cal/sec -19276.3
Entropy cal/mol-K 5.723908
Entropy cal/gm-K 0.527955
Density mol/cc 3.56E-05
Density gm/cc 0.000386
Average MW 10.84166
Liq Vol 60F l/min 36.64488
Substream: $TOTALTotal Flow kg/hr 1250
Enthalpy cal/sec -21737.5
Substream: CISOLID
Mole Flow kmol/hr
HYDROGEN 0
OXYGEN 0
NITROGEN 0
WATER 0
CO 0
CO2 0
H2S 0
METHANE 0
C 0
AMMONIA 0
S 0
CHLORINE 0
Total Flow kmol/hr 0
Total Flow kg/hr 0
Total Flow l/min 0Temperature
Pressure atm 1
Vapor Frac
Liquid Frac
Solid Frac
Enthalpy
Enthalpy
Enthalpy
Entropy
Entropy
Density
-
7/23/2019 Project 2 - Adetayo Tiakor
14/23
14
Density
Average MW
Liq Vol 60F
Substream: NC
Mass Flow kg/hr
WASTE 0
ASH 140
Total Flow kg/hr 140
Temperature K 873.15
Pressure atm 1
Vapor Frac 0
Liquid Frac 0
Solid Frac 1
Enthalpy cal/gm -63.2888
Enthalpy cal/sec -2461.23Entropy
Density gm/cc 3.486884
Average MW 1
WASTE PROXANAL
MOISTURE
FC
VM
ASH
WASTE ULTANAL
ASH
CARBON
HYDROGEN
NITROGEN
CHLORINE
SULFUR
OXYGEN
WASTE SULFANAL
PYRITIC
SULFATEORGANIC
ASH PROXANAL
MOISTURE 0
FC 0
VM 0
ASH 100
ASH ULTANAL
ASH 100
CARBON 0
HYDROGEN 0
NITROGEN 0
-
7/23/2019 Project 2 - Adetayo Tiakor
15/23
15
CHLORINE 0
SULFUR 0
OXYGEN 0
ASH SULFANAL
PYRITIC 0
SULFATE 0
ORGANIC 0
Gibbs Reactor: 6000C
Table 2 - Gibbs Reactor: 600C
OUTLET
Substream: MIXED
Mole Flow kmol/hr
HYDROGEN 6.63E-11
OXYGEN 4.499349
NITROGEN 284.9801
WATER 34.15852
CO 4.51E-11
CO2 62.23462
H2S 0.410337
METHANE 0
C 0AMMONIA 0
S 0.018466
CHLORINE 0
Total Flow kmol/hr 386.3014
Total Flow kg/hr 11496.14
Total Flow l/min 15376.35
Temperature K 873.15
Pressure atm 30
Vapor Frac 1
Liquid Frac 0
Solid Frac 0
Enthalpy cal/mol -15671
Enthalpy cal/gm -526.587
Enthalpy cal/sec-
1681600
Entropy cal/mol-K 2.450193
Entropy cal/gm-K 0.082333
Density mol/cc 0.000419
Density gm/cc 0.012461
Average MW 29.75952
-
7/23/2019 Project 2 - Adetayo Tiakor
16/23
16
Liq Vol 60F l/min 324.5982
Substream: $TOTAL
Total Flow kg/hr 11636.14
Enthalpy cal/sec-
1684100
Substream: CISOLID
Mole Flow kmol/hr
HYDROGEN 0
OXYGEN 0
NITROGEN 0
WATER 0
CO 0
CO2 0
H2S 0
METHANE 0C 0
AMMONIA 0
S 0
CHLORINE 0
Total Flow kmol/hr 0
Total Flow kg/hr 0
Total Flow l/min 0
Temperature
Pressure
Vapor FracLiquid Frac
Solid Frac
Enthalpy
Enthalpy
Enthalpy
Entropy
Entropy
Density
Density
Average MW
Liq Vol 60F
Substream: NC
Mass Flow kg/hr
WASTE 0
ASH 140
Total Flow kg/hr 140
Temperature K 873.15
Pressure atm 30
Vapor Frac 0Liquid Frac 0
-
7/23/2019 Project 2 - Adetayo Tiakor
17/23
17
Solid Frac 1
Enthalpy cal/gm -63.2888
Enthalpy cal/sec -2461.23
Entropy
Density gm/cc 3.486884
Average MW 1
WASTE PROXANAL
MOISTURE
FC
VM
ASH
WASTE ULTANAL
ASH
CARBON
HYDROGENNITROGEN
CHLORINE
SULFUR
OXYGEN
WASTE SULFANAL
PYRITIC
SULFATE
ORGANIC
ASH PROXANAL
MOISTURE 0
FC 0
VM 0
ASH 100
ASH ULTANAL
ASH 100
CARBON 0
HYDROGEN 0
NITROGEN 0
CHLORINE 0SULFUR 0
OXYGEN 0
ASH SULFANAL
PYRITIC 0
SULFATE 0
ORGANIC 0
-
7/23/2019 Project 2 - Adetayo Tiakor
18/23
18
Since, weve specified the yield components and their fractions and according to the yield definition,
this conditions result does not depend on reactor temperature. Hence, the further conditions have
been specified for the secondary reactor i.e. Gibbs Reactor.
Gibbs Reactor: 7000C
Table 3 - Gibbs Reactor: 700C
OUTLET
Substream: MIXED
Mole Flow kmol/hr
HYDROGEN 2.20E-09
OXYGEN 4.48864
NITROGEN 284.9801
WATER 34.17993
CO 2.48E-09
CO2 62.23462
H2S 0.388918
METHANE 0
C 0
AMMONIA 0S 0.039885
CHLORINE 0
Total Flow kmol/hr 386.3121
Total Flow kg/hr 11496.14
Total Flow l/min 17137.84
Temperature K 973.15
Pressure atm 30
Vapor Frac 1
Liquid Frac 0
Solid Frac 0
Enthalpy cal/mol -14801.6
Enthalpy cal/gm -497.389
Enthalpy cal/sec
-
1588300
Entropy cal/mol-K 3.392081
Entropy cal/gm-K 0.113986
Density mol/cc 0.000376
Density gm/cc 0.01118
Average MW 29.75869
Liq Vol 60F l/min 324.5822
-
7/23/2019 Project 2 - Adetayo Tiakor
19/23
19
Substream: $TOTAL
Total Flow kg/hr 11636.14
Enthalpy cal/sec
-
1589800
Substream: CISOLID
Mole Flow kmol/hr
HYDROGEN 0
OXYGEN 0
NITROGEN 0
WATER 0
CO 0
CO2 0
H2S 0
METHANE 0
C 0AMMONIA 0
S 0
CHLORINE 0
Total Flow kmol/hr 0
Total Flow kg/hr 0
Total Flow l/min 0
Temperature
Pressure
Vapor Frac
Liquid Frac
Solid Frac
Enthalpy
Enthalpy
Enthalpy
Entropy
Entropy
Density
Density
Average MW
Liq Vol 60F
Substream: NC
Mass Flow kg/hr
WASTE 0
ASH 140
Total Flow kg/hr 140
Temperature K 973.15
Pressure atm 30
Vapor Frac 0
Liquid Frac 0Solid Frac 1
-
7/23/2019 Project 2 - Adetayo Tiakor
20/23
20
Enthalpy cal/gm -36.1888
Enthalpy cal/sec -1407.34
Entropy
Density gm/cc 3.486884
Average MW 1
WASTE PROXANAL
MOISTURE
FC
VM
ASH
WASTE ULTANAL
ASH
CARBON
HYDROGEN
NITROGENCHLORINE
SULFUR
OXYGEN
WASTE SULFANAL
PYRITIC
SULFATE
ORGANIC
ASH PROXANAL
MOISTURE 0
FC 0
VM 0
ASH 100
ASH ULTANAL
ASH 100
CARBON 0
HYDROGEN 0
NITROGEN 0
CHLORINE 0
SULFUR 0OXYGEN 0
ASH SULFANAL
PYRITIC 0
SULFATE 0
ORGANIC 0
Gibbs Reactor: 8000C
-
7/23/2019 Project 2 - Adetayo Tiakor
21/23
21
Table 4 - Gibbs Reactor: 800C
OUTLET
Substream: MIXED
Mole Flow kmol/hrHYDROGEN 3.84E-08
OXYGEN 4.47283
NITROGEN 284.9801
WATER 34.21155
CO 6.43E-08
CO2 62.23462
H2S 0.357298
METHANE 0
C 0
AMMONIA 0
S 0.071505
CHLORINE 0
Total Flow kmol/hr 386.3279
Total Flow kg/hr 11496.14
Total Flow l/min 18899.69
Temperature K 1073.15
Pressure atm 30
Vapor Frac 1
Liquid Frac 0
Solid Frac 0
Enthalpy cal/mol -13913.3
Enthalpy cal/gm -467.556
Enthalpy cal/sec
-
1493100
Entropy cal/mol-K 4.260166
Entropy cal/gm-K 0.143163
Density mol/cc 0.000341
Density gm/cc 0.010138
Average MW 29.75748Liq Vol 60F l/min 324.5585
Substream: $TOTAL
Total Flow kg/hr 11636.14
Enthalpy cal/sec
-
1493400
Substream: CISOLID
Mole Flow kmol/hr
HYDROGEN 0
OXYGEN 0
NITROGEN 0WATER 0
-
7/23/2019 Project 2 - Adetayo Tiakor
22/23
22
CO 0
CO2 0
H2S 0
METHANE 0
C 0
AMMONIA 0
S 0
CHLORINE 0
Total Flow kmol/hr 0
Total Flow kg/hr 0
Total Flow l/min 0
Temperature
Pressure
Vapor Frac
Liquid FracSolid Frac
Enthalpy
Enthalpy
Enthalpy
Entropy
Entropy
Density
Density
Average MW
Liq Vol 60F
Substream: NC
Mass Flow kg/hr
WASTE 0
ASH 140
Total Flow kg/hr 140
Temperature K 1073.15
Pressure atm 30
Vapor Frac 0
Liquid Frac 0Solid Frac 1
Enthalpy cal/gm -7.6888
Enthalpy cal/sec -299.009
Entropy
Density gm/cc 3.486884
Average MW 1
WASTE PROXANAL
MOISTURE
FC
VM
ASH
-
7/23/2019 Project 2 - Adetayo Tiakor
23/23
23
WASTE ULTANAL
ASH
CARBON
HYDROGEN
NITROGEN
CHLORINE
SULFUR
OXYGEN
WASTE SULFANAL
PYRITIC
SULFATE
ORGANIC
ASH PROXANAL
MOISTURE 0
FC 0VM 0
ASH 100
ASH ULTANAL
ASH 100
CARBON 0
HYDROGEN 0
NITROGEN 0
CHLORINE 0
SULFUR 0
OXYGEN 0
ASH SULFANAL
PYRITIC 0
SULFATE 0
ORGANIC 0
4.0 Conclusion:This project was very successful. By inputing the various parameters for the hazardous waste
incineration flow sheet baseda on the given data. The main simulation results were also compared
with different temperature conditions. Taking precaution to the input variables and parameters were
key in arriving at the right answers.
top related