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badwaterreflectiveΠολεοδομικά Έργα

29 Νοε 2013 (πριν από 3 χρόνια και 10 μήνες)

90 εμφανίσεις

P
LASMA

GASIFICATION

OF

M
UNICIPAL

S
OLID

W
ASTE

Tien

Diep

Kevin
Estacio

Sebastian
Iskra

Linda Quan

Felix Velazquez

Mentor: Dennis O’Brien


B
LOCK

F
LOW

D
IAGRAM

B
LOCK

F
LOW

D
IAGRAM

C
ONTINUED

S
CHEMATIC

F
LOW

D
IAGRAM

M
ATERIAL

AND

E
NERGY

B
ALANCE

Dividing Wall Column

Units

AIR
-
In

DWC

O2

Out

compressor

N2
-
Out

DWC

O2
-
Out

DWC

OTHER

GAS Out

DWC

Component

Mass Flow

N2

LB/HR

8326.227

0.0

8326.227

0.0

0.0

O2

LB/HR

2559.540

2559.540

0.0

2559.540

0.0

CO2

LB/HR

5.074917

0.0

0.0

0.0

5.074917

AR

LB/HR

141.2160

0.0

0.0

0.0

141.2160

Component

Mole Flow

N2

LBMOL/HR

297.2222

0.0

297.2222

0.0

0.0

O2

LBMOL/HR

79.98862

79.98862

0.0

79.98862

0.0

CO2

LBMOL/HR

.1153133

0.0

0.0

0.0

.1153133

AR

LBMOL/HR

3.534995

0.0

0.0

0.0

3.534995

Mass
Enthalpy

BTU/LB

-
1.768354

14.19759

-
8.4035E
-
7

-
7.4127E
-
7

-
133.3547

M
ATERIAL

AND

E
NERGY

B
ALANCE

Stream

Temperature
(F)

Pressure
(psi)

lb
-
mol/hr

lb/hr

MMBtu/hr

ton/day

MSW

416666.7

5000.00006

Tires w/Steel
Belts

23479.14

281.749657

Total Feed

440145.8

2639.8757

5281.74972

Met Coke

17605.83

222.35122

211.269989

Flux
(Limestone)

324.9326

32521.49

-
23.97905

390.257923

Oxidant

77

19.72513233

126874.7

1522.49605

Shroud Air

77

19.72513233

16352.3

196.227566

Shroud O2

77

19.72513233

16352.3

196.227566

Plasma Torch
Air

77

164.7628701

16676.24

70.193228

200.114933

Total In

666528.6

2908.4411

7998.34374

M
ATERIAL

AND

E
NERGY

B
ALANCE

Stream

lb
-
mol
/
hr

lb/hr

Carbon In

13134.97

157760.1

Oxygen In

19329.21

309255.8

Nitrogen In

2217.302

31057.08

Argon In

100.2989

4006.739

Hydrogen In

21689.97

21862.19

Chlorine In

72.39055

2566.462

Sulfur In

30.9234

991.5588

Misc In

139028.7

Total In

666528.7

M
ATERIAL

AND

E
NERGY

B
ALANCE

Stream

Temperatur
e (F)

Pressure
(psi)

lb
-
mol/hr

lb/hr

ton/day

CO

1652

14.64881151

10492.74

293901.7

3526.82046

CO2

1652

14.64881151

1204.133

52993.89

635.926674

N2

1652

14.64881151

1085.207

30400.34

364.80402

Ar

1652

14.64881151

100.2989

4006.739

48.0808646

H2

1652

14.64881151

5865.488

11824.12

141.88943

CH4

1652

14.64881151

305.269

4897.125

58.7655012

C2H6

1652

14.64881151

122.1431

3672.844

44.0741259

M
ATERIAL

AND

E
NERGY

B
ALANCE

Stream

Temperature
(F)

Pressure (psi)

lb
-
mol/hr

lb/hr

MMBtu
/hr

C2H4

1652

14.64881151

61.02937

1711.874

20.5424858

C3H8

1652

14.64881151

61.05122

2692.359

32.3083058

C4H10

1652

14.64881151

61.00561

3545.646

42.5477492

HCl

1652

14.64881151

72.39055

2639.36

31.6723156

H2S

1652

14.64881151

27.83538

948.6855

11.3842259

COS

1652

14.64881151

3.088017

185.4972

2.22596595

NH3

1652

14.64881151

45.12291

768.4882

9.22185895

HCN

1652

14.64881151

1.764986

47.69927

0.57239125

H2O

1652

14.64881151

6425.114

115750.2

1389.00276

M
ATERIAL

AND

E
NERGY

B
ALANCE

Stream

Temperature
(F)

Pressure
(psi)

lb
-
mol/hr

lb/hr

MMBtu/hr

ton/day

Total Raw
Gas

1652

14.64881151

529991.9

2696.9895

6359.90273

Unreacted C

167.2237

2008.473

24.1016803

Slag and
Metal

3002

14.64881151

134508.6

112.70155

1614.10271

Heat Loss

98.532108

Total Out

666508.9

2908.2231

7998.10712

M
ATERIAL

AND

E
NERGY

B
ALANCE

Stream

lb
-
mol/hr

lb/hr

Carbon Out

12967.74

157760.1

Oxygen Out

19329.21

309255.8

Nitrogen Out

2217.302

31057.08

Argon Out

100.2989

4006.739

Hydrogen Out

21689.97

21862.19

Chlorine Out

72.39055

2566.462

Sulfur Out

30.9234

991.5588

Misc Out

139009

Total Out

666508.9

M
ATERIAL

AND

E
NERGY

B
ALANCE

Treatment Vessel Material Balance

In

Out

2639.35 lb/hr HCl

3191.83 [lb/hr NaOH]

948.68 lb/hr H
2
S

7165.02 [lb/hr
NaCl
]

Treatment Vessel Energy Balance

H
HCl

=
-
1096.41 Btu/lb

H
H
2
S

=
-
224.254 Btu/lb

H
AND

CALCULATIONS


H2S+2NaOH
-
> Na2S+2H2O


HCl

+
NaOH

--
>
NaCl

+ HOH


Material balances for the treatment vessel

H
2
S
Stoich

(2)


11.3842 tons/day = 1.13842x10^7g/day


1.13842x10^7 g/day x (1mol H
2
S/34.08g H
2
S) x (4mol
NaCl
/1mol H
2
S)
x (58.4430g/1mol
NaCl
)



= 7.80x10^7 [g/day
NaCl
] x (1day/24hours) x (1lb /




453.5923 g)



=
7165.023 lb/hr
NaClout

HCl

stoich



31.6723 tons/day = 3.16723x10^7g/day


3.16723x10^7g/day x (1mol
HCl
/36.46g) x (1mol
NaOH

/ 1mol
HCl
) x
(40g
NaOH
/1mol
NaOH
)



= 3.4747x10^7 [g/day
NaOH
] x (1day/24hours) x (1lb / 453.5923 g)


= 3191.834 lb/hr
NaOHout

H
AND

C
ALCULAITONS



H =
Δ
H
f
°

+


Cp
HCl

= 0.029 [KJ/mol K]


Cp
H2S

= 0.034 [KJ/mol K]

H
HCl

=
-
92.3 KJ/mol + 0.029 KJ/kg K (363
-
298)



=
-
85.696 Btu/mol (
-
1096.41 Btu/lb)

H
H2S
=
-
86.373KJ/mol + 0.034 KJ/mol K (363
-
298)


=
-
16.849 Btu/mol
-
224.254 Btu/lb

-
85.696 Btu/mol x(1mol
HCl
/35.453g) x (453.5923g/1lb)


=
-
1096.41 Btu/lb

-
16.849 Btu/mol x (1mol H2S/34.08g) x (453.5923g/1lb)



=
-
224.254 Btu/lb

M
ATERIAL

AND

E
NERGY

B
ALANCE

Shift Reactor

Units

SynGas
-
In

Shift reactor

SynGas
-

Out

Shift Reactor

Component

Mass Flow

CO

LB/HR

2.93902E+5

1.21456E+5

H2O

LB/HR

1.15750E+5

4839.272

CO2

LB/HR

52993.91

3.23940E+5

H2

LB/HR

11824.17

24234.92

Component

Mole Flow

CO

LBMOL/HR

10492.59

4336.096

H2O

LBMOL/HR

6425.115

268.6204

CO2

LBMOL/HR

1204.139

7360.634

H2

LBMOL/HR

5865.511

12022.01

Mass Enthalpy

BTU/LB

-
2769.683

-
2948.137

DATA

Material

C

S

O

H

N

Cl

Ash

Moisture

Misc

Total

MSW

26.7

0.1

18.8

3.7

1.1

0.7

22.6

26.2

0.1

100

Tires

72.2

1.1

1.9

6.1

0.2

0

18

0.5

0

100

Met
Coke

91

0.8

0

0

0

0

7

1.2

0

100

D
ATA

Gas

Weight Percent of
Dry Air

O2

23.20

N2

75.47

CO2

.046

Ar

1.28

R
OUGH

E
CONOMICS

Equipment/Materials

Equipment Costs

Material Cost

Direct Labor Costs

Feed Water & Misc.
Equipment

$289,104.00

$247,551.00

$275,224.50

Gasifier & Accessories

$7,791,415.50

$334,447.50

$2,005,402.50

Gas Cleanup & Piping

$2,252,839.50

$140,932.50

$2,005,545.00

CO
2

Removal &
Compression

$504,792.00

$309,652.50

$0.00

Combustion
Turbine/Accessories

$2,658,195.00

$21,432.00

$190,095.00

Ducting & Stack

$1,009,327.50

$64,638.00

$216,372.00

Steam Turbine
Generator

$110,665.50

$26,875.50

$346,360.50

Cooling Water System

$201,609.00

$211,954.50

$177,526.50

R
OUGH

E
CONOMICS

Equipment/Materials

Equipment
Costs

Material Cost

Direct Labor Costs

Ash Handling system

$406,552.50

$227,230.50

$420,945.00

Accessory Electric
Plant

$683,914.50

$337,383.00

$668,040.00

Instrumentation &
Control

$298,366.50

$55,860.00

$200,298.00

Improvements to Site

$94,563.00

$55,746.00

$235,068.00

Buildings & Structures

$0.00

$182,685.00

$212,068.50

Totals

$16,301,344.50

$2,216,388.00

$6,952,945.50

Total Plant Cost 2006

$
25,470,678.00

Total Tipping Fee
MSW

$170,000.00

Total Plant Cost 2010

$
27,168,383.32

T
IMELINE


R
EFERENCES