project 2 - adetayo tiakor

7/23/2019 Project 2 - Adetayo Tiakor

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Lamar University

Department of Chemical Engineering

Fundamentals of Sustainability

Project-2 Hazardous Waste Incineration Process

Group Members

STEPHEN TIAKOR (L20395298)

ADENIJI ADETAYO (L20383646)


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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


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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


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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%.


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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


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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


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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


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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


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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


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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


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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


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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


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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


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


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Density

Average MW

Liq Vol 60F

Substream: NC

Mass Flow kg/hr

WASTE 0

ASH 140

Total Flow kg/hr 140


Pressure atm 1

Vapor Frac 0

Liquid Frac 0

Solid Frac 1


Enthalpy cal/sec -2461.23Entropy


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


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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 kg/hr 11496.14

Total Flow l/min 15376.35


Pressure atm 30

Vapor Frac 1

Liquid Frac 0

Solid Frac 0

Enthalpy cal/mol -15671


Enthalpy cal/sec-

1681600



Density mol/cc 0.000419


Average MW 29.75952


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Substream: $TOTAL


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 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



Pressure atm 30

Vapor Frac 0Liquid Frac 0


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Solid Frac 1



Entropy


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


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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.



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





Pressure atm 30

Vapor Frac 1

Liquid Frac 0

Solid Frac 0



Enthalpy cal/sec

-

1588300





Average MW 29.75869



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Substream: $TOTAL


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 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



Pressure atm 30

Vapor Frac 0

Liquid Frac 0Solid Frac 1


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Entropy


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



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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





Pressure atm 30

Vapor Frac 1

Liquid Frac 0

Solid Frac 0



Enthalpy cal/sec

-

1493100





Average MW 29.75748Liq Vol 60F l/min 324.5585

Substream: $TOTAL


Enthalpy cal/sec

-

1493400

Substream: CISOLID

Mole Flow kmol/hr

HYDROGEN 0

OXYGEN 0

NITROGEN 0WATER 0


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CO 0

CO2 0

H2S 0

METHANE 0

C 0

AMMONIA 0

S 0

CHLORINE 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



Pressure atm 30

Vapor Frac 0

Liquid Frac 0Solid Frac 1



Entropy


Average MW 1

WASTE PROXANAL

MOISTURE

FC

VM

ASH


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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.

project 2 - adetayo tiakor

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