Balance de Materia y Energia de una planta de Urea

7/25/2019 Balance de Materia y Energia de una planta de Urea

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BALANCE DE MATERIA

Capacidad de planta 390000.00

Dias habiles 300.00

Produccion diaria 1300.00

Urea de 98% pureza 54166.6

Co!posicion del producto "inal

Urea 98.00%

#iuret 1.00%

$u!edad 1.00%

Conersion &'&() 95.00%

REACCIONES PRINCIPALES

1*

+*

1* , +*

REACTOR 34.00%

"lu-o 1561+.45

(!oniaco reaccionado 30438.16

(!oniaco producido 89.40

(!oniaco sin reaccionar 15308.48

+03.19

lu-o de carba!ato 69006.46

ENTRADA Flujo (kg/hr

Al!"#$&'!o$

30348.6

41463.5

/$3 de reciclo 15308.48

Carba!ato de reciclo 69006.46

TOTAL DE ENTRADA )*+,.4)

SALIDA Flujo (kg/hr

Pro-u'o

Urea 53083.33

(ua 16114.3+

#iuret 541.6

C'+ sin reaccionar

/$3

C'+

CO_2+2NH_3 NH_2 COONH_4NH_2 COONH_4 NH_2 CONH_2+H_2 O

CO_2+2NH_3NH_2 CONH_2+H_2 O


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Carba!ato 69006.46

S!$ r#&''!o$&r

+03.19

15308.48

TOTAL DE SALIDA )*+,.4)

DESCOMPONEDORESENTRADA Flujo (kg/hr

Urea 53083.33

aua 16114.3+

biuret 541.6

+03.19

15308.48

,+0.

SALIDA

#''!o$ 1&j&

Urea 53083.33

aua 16114.3+

biuret 541.6

*,3.3+

To2#

+03.19

15308.48

,3.*,

C'+

/$3

C'+

/$3

C'+

/$3


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/$3/$3 de reciclo

Carba!ato de reciclo


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tonano

dia

tondia

2hr

53083.33333333332hr

541.666666666 2hr

541.666666666 2hr

REACCION SECNDARIA

3*

REA

2hr

2hr

2hr

2hr

2hr

2hr

Por'#$&j# lujo (k"ol/hr

19.44% 185.++

+6.56% 94+.36

9.81% 900.50

44.+0% 884.0

00.00% 4)+.,

Por'#$&j#

34.00% 884.+

10.3+% 895.+4

0.35% 5.+6

2NH_2 CONH_2 NH_2 CONHCONH_2+NH_3


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44.+0% 884.0

1.33% 4.1+

9.81% 900.50

00.00% 3*,.)4

Por'#$&j#

60.93% 884.+

18.50% 895.+4

0.6+% 5.+6

+.38% 4.1+

1.5% 900.50

00.00% +,3+.4

6.1+% 884.+

+3.11% 895.+4

0.8% 5.+6

00.00% ,).++

11.93% 4.1+

88.0% 900.50

00.00% 4,.*+


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7/48

P#o "ol#'ul&r#

44

1

8

60

18

103

r#l&'!o$ "ol&r -# #$r&-& &l r#&'or N

Urea conertida en biuret

Urea producida

(!oniaco reaccionado

(!oniaco utilizado

(ua producida

2or'#$&j#

39.56%

+0.88%

19.95%

19.60%

00.00%

+4.46%

+4.5%

0.15%

C'+

/$3

/$+C''/$4

/$+C'/$+

$+'

/$+C'/$C'/$+

C'+ reaccionado

C'+ utilizado


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+4.46%

1.30%

+4.89%

00.00%

3+.3%

3+.6%

0.19%

1.+%

3+.95%

00.00%

49.56%

50.15%

0.+9%

00.00%

4.9%

95.03%

00.00%


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+059.805501618 50.00%1039.03+168+85 +5.++%

10+0.805643644 +4.8%

4.,340**4* 00.00%


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53/CO+ 3

631.02hr

5314.40 2hr

30438.16 2hr

39390.56 2hr

4565.+4 2hr

41463.5 2hr

16114.3+2hr

STRIPPER

ENTRADA Flujo (kg/hr

Pro-u'o -#l r#&'or

Urea 53083.33

(ua 16114.3+

#iuret 541.6

Carba!ato 69006.46

S!$ r#&''!o$&r

+03.19

15308.48

TOTAL DE ENTRADA )*+,.4)

SALIDA Flujo (kg/hr

S#''!o$ 1&j&

Urea 53083.33

aua 16114.3+

biuret 541.6

+03.19

15308.48

,+0.

o2#

C'+

/$3

C'+

/$3


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C&r1&"&o *00*.4*

E6APORADOR AL 6ACIOENTRADA Flujo (kg/hr

Urea 53083.33

(ua 16114.3+

#iuret 541.6

*,3.3+

SALIDA

To2#

Agu& )),+.*)

S#''!o$ 1&j& 98%

urea 53083.33

aua 541.6

biuret 541.6

)4**.*********,

155+.65

aua 1 eaporador

10958.464+3948+608.804+4549


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Por'#$&j# lujo(k"ol/hr

34.00% 884.+++++++++

10.3+% 895.+400+155

0.35% 5.+58899664

44.+0% 884.698++4518

0.00%

1.33% 4.118958+4

9.81% 900.4989+1+513

00.00% 3*,.)3*))

Por'#$&j# lujo(k"ol/hr

60.93% 884.+++++++++

18.50% 895.+400+155

0.6+% 5.+58899664

+.38% 4.118958+4

1.5% 900.4989+1+513

00.00% +,3+.3,*0),3


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00.00% 4.*++4),

Por'#$&j#

6.1+% 884.+++++++++

+3.11% 895.+400+155

0.8% 5.+58899664

00.00% ,).++434,3*

00% *).4,4++4

98.00% 884.+++++++++

1.00% 30.09+59+59+6

1.00% 5.+58899664

00.00% +0.0,3,44+

aua + eaporador

4614.18+56.343183+05


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2or'#$&j#

+4.46%

+4.5%

0.15%

+4.46%

1.30%

+4.89%

00.00%

2or'#$&j#

3+.3%

3+.6%

0.19%

1.+%

3+.95%

00.00%


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00%

49.56%

50.15%

0.+9%

00.00%

00%

96.16%

3.+%

0.5%

00.00%


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BALANCE DE ENER7IA

E2#'!#

ur#& 0.48+8

N53 0.54

CO+ 0.++5

C&r1&"&o 0.6+

&gu& 1

1!ur#

INTERCAMBIADOR DE CALOR ANTES DE ENTRAR

Calenta!iento de C'+ /$3 de la ali!entacion

ntrada !olh

C'+ 94+.36

/$3 185.++

++.58

Cp pro! 39.41+19401

'&lor &'u"ul&-o .)0E80,

!7

! .10:03

INTERCAMBIADOR DE CALOR ANTES DE ENTRAR

Calor 84330+96.515+

;apor utilizado 396.186888+

++09.+8816046

Calor de salida .+3:0

'2('&l/g"C


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CONDENSADOR DE CARBAMATO

Carba!ato aseoso

$+' de re"rieracion utilizada

DESCOMPONEDOR A PRESION MEDIA A 4

C()'< D /&


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Usando aua de re"rieracion a +0C sale a 40

Calor anado por el aua ?+.14:06

!asa de aua +5599.+6+1

#r E6APORADOR ) C

ntrada

Urea 884.+

>ater 895.+4

#iuret 5.+6

,).++

C&lor -# #$r&-& .40E80,

=alida de aua 608.63+1461

Cp pro! !ezcla 98.+80335161

C&lor &l!"#$&-o .4E80,

$ap a 0.+5 at! 4115

$ap a 4.5 at! 38+1.6

C&lor 2or &gu& 9&2or!:&-& +.,E80,

C&lor -#l 9&2or &ur&-o +.*E80,

;apor sat a 4.5 at! .3:0+

Cp pro! salida 110.+0+65566

C&lor -# &l!-& .0E80,

E$r!&-or &$# -# #$r&r &l #gu$-o #9&2or&-or

E$r&-& )

lu-o 116.459+88

Calor 1.10:0

S&l!-& +,

Calor 3.50:06

Calor @ue se necesita retirar .5+:06

Agu& -# #$r!&"!#$o (+0;40 C ).00E803


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L!& -# Eo 0.+3 &"

ntrada

=alida


23/48

E9&2or&-or &l 9&'>o 0.03 &"

ntrada

=alida

Torr# -# gr&$ul&'!=$


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$+' a +5 C

;apor saturado a 100

Carba!ato li@uido

carba!atoanadopor$+'

!asa de aua 13341.59

9630.0883+90809

C

3.9+:0

porcenta-e !olar

19.93%

1.04%

39.16%

39.63%

0.+3%

00.00%

95.03%

4.9%

2-2!olC

!carba!atoc !auaACpT+a)


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2hr

49.56%

50.15%

0.+9%

00.00%

k/h

2!olh

-!olBC

k/h

2!ol

2!ol

k/h

k/h

!olh

-!olBC

k/h

C

2!olh

2h

C

2h

2h

k"ol/h


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Corr!#$# Flujo (k"ol/h

94+.36

19 ? /$3 185.++

6&2or S&ur&-o & +00 C ).4 &" ,0,.04

1 ?C'+ 94+.36

350.4+

361.54

Agu& -# #$r!&"!#$o 34.

361.54

6&2or S&ur&-o & +00 C ).4 &" 0*3.

361.54

3 ? Urea (ua #iuret C'+ /$3 +3+.84

13 ? Carba!ato 884.0

6&2or S&ur&-o & +00 C ).4 &" *33.*

13 ? Carba!ato 884.0

Agu& -# #$r!&"!#$o *30.0

3 ? /$3 C'+ urea aua biuret +3+.84

14 ? /$3 C'+ 43.81

4 ? /$3 C'+ urea aua biuret ++59.03

Agu& -# #$r!&"!#$o 4++.+

4 ? /$3 C'+ urea aua biuret ++59.035 ? Urea (ua #iuret 185.++

15 ? /$3 C'+ 43.81

Agu& -# #$r!&"!#$o 3,.*

6 ? Urea aua biuret 185.++

? Urea aua biuret 116.46

1 ? (ua Aapor* 608.6

6&2or &ur&-o & 4.) &" ,,3.44

8 ? Urea aua biuret 116.46

1 ? C'+

1+ ? Carba!ato /$3 /$3

+ ? Urea (ua #iuret Carba!ato C'+ /$3




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Agu& -# #$r!&"!#$o 4,.0

8 ? Urea aua biuret 116.46

9 ? Urea aua biuret 9+0.15

18 ? (ua Aapor* +56.31

6&2or &ur&-o & 4.) &" 30,.+0

1011 ? Urea aua biuret 9+0.15

Corriente de aire 5+8.86


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E$&l2!& -# r#&''!o$ -# l& ur#&

2calr!ol 22!ol

?31.3+ ?13091.6

REACTOR 0

E$r&-& te!peratura

180

180

Carba!ato 180

/$3 de reciclo 180

S&l!-& te!peratura

Urea 180

(ua 180

#iuret 180

Carba!ato 180180

180

cp pro! 108.0+5069959

STRIPPER )

S&l!-& porcenta-e !olar

Urea 3+.3%

(ua 3+.6%

#iuret 0.19%

C'+ 1.+%

/$3 3+.95%

cp pro! .55903311+

/$3

C'+

C'+

/$3


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2hr

DESCOMPONEDOR A PRESION BAA A 0 C

Calor de entrada +.1:0

=alida !asa !olarA!olhr*

Urea 884.+

>ater 895.+4

#iuret 5.+6

,).++

&ope

/$3 450.+494606+5

C'+ +3.55894936+

4,3.040)*

Cp pro! salida 98.+8

Calor de salida 1.40:0

Cp pro! &ope 38.5+

+.46:04

Calor de tope 1.31:0

pro! tope


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Calor total ?5.59:04

Usando aua de re"rieracion a +0 C sale a 40

!asa de aua 668.865960838

3.159++08935

+-o E6APORADOR +, C

ntrada

Urea 884.+

(ua +86.48

#iuret 5.+6

,*.4),+0+*

C&lor -# #$r&-& 3.)0E80*

=alida de aua +56.30+18169

Cp pro! !ezcla 110.+0+65566+

C&lor &l!"#$&-o 3.50:06

$ap a 0.03 at! 45806.4

$ap a 4.5 at! 38+1.6

C&lor 2or &gu& 9&2or!:&-& .,E80,

C&lor -#l 9&2or &ur&-o .,E80,

;apor sat a 4.5 at! 3.0:0+

Cp pro! salida 119.94

C&lor -# &l!-& +.E80*

PRILLIN7

E$r&-& +,

lu-o 9+0.150106+5

Calor +.98:06

S&l!-& +)

Calor +.6:06

Calor @ue se retira +.+1:05

A!r# (+);+* C ,.)3E803


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Cp del aire 1.01+

Easa !olecular del aire +8.9

C&lor k/hE$r&-& S&l!-&

40 180 5.46:06

40 180 9.59:06

+00 +00 ;.)0E80,

180 180 .0+:06

180 180 0.00:00

? 180 .03:0

+0 40 ).+)E80,

180 185 1.95:06

+00 +00 ;+.+)E80*

185 ? .+3:0

185 3.9+:0

185 4.6:0

+00 +00 ;.4)E80,

185 185 ?1.45:0

+0 40 .4)E80,

185 3.9+:0

140 1.4+:0

140 +.1:0

+0 40 +.4E80*

140 +.1:080 1.40:0

80 1.31:0

+0 40 ).)E804

80 1.40:0

85 1.10:0

85 3.+6:0

4, 4, +.*E80,

85 + ?.5+:06

T#"2#r&ur& C


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+0 40 ,.)+E80*

+ 3.50:06

+ +.98:06

+ 1.+3:0

4, 4, .,E80,

+ +5 ?+.+1:05

+5 +6 +.+1:05


34/48

C

calor A2-hr*

1+33059.5

01939.96

3+190686.++

6+194.8 C&lor o&l #$ r#&'or

).,E80,

porcenta-e !olar &gu& -# r#r!g#r&'!o$ & +)

+4.46% !cpF& reaccion

+4.5% !

0.15%

+4.46%1.30%

+4.89%

100.00%

C&lor -# S&l!-& ,.03E80, kj/hr

C

'&lor '&r1&"&o!cpF&:!7 acu!ulad

4.6:0

calor total en =tripper

'&lor u"!$!r&-o 2or 9&

!7total! apor

C&lor -# &l!-& 3.+E80,

'&lor -# r#&''!o$ 5r


35/48

porcenta-e !olar

49.56%

50.15%

0.+9%

00%

95.03%

4.9%

2-2!olC

-h


36/48

2hr

=alida

5.+0% Urea

+4.35% (ua

0.45% #iuret

00.00%

k/h

2!olh

-!olBC

2h

22!ol

2!ol

k/h

k/h

!olh

-!olBC

k/h

C

2!olh

2h

C

2h

2h

k"ol/h


37/48

22BC +9.3164 22!olBC

22!ol

C&lor -# R C2 (@j/@"olC

?

41.38

38.3

++0.*

?1.16:08

41.38

0.00

108.03

,).+4

108.03

++0.*

108.03

.56

+10 +0+.14

++0.*

+10

,).+4

.56

+464.45 38.5+

85.5

,).+4

85.598.+8

+464.45 38.5+

,).+4

98.+8

110.+0

4115 5.+4

3+,.*

110.+0

C&lor l$# (kJ/kg)


38/48

,).+4

110.+0

119.94

45806.4 5.+4

3+,.*

119.94

+9.3+


39/48

?1.16:08 2hr

;.03E80 k/h

C h&& 40

68609.34 2!olh

3811.63 2h

o

1.45:0

or -# &gu& & ).4 &" 'o$ T +00

6.83:03 2h


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C


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Balance de Materia y Energia de una planta de Urea

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