Urea 3 Reactor Efficiency and Optimum Parameters

8/19/2019 Urea 3 Reactor Efficiency and Optimum Parameters

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PRESENTED BY:

AHMED OMER AHMED OMER

ICET PUNJAB UNIVERSITY

PRESENTED TO:

ASIM RASHEED QURESHI ASIM RASHEED QURESHI (GL)

MUHAMMAD IMRAN HAIDERMUHAMMAD IMRAN HAIDER (Mentor)

UREA REACTOR AND

FACTORS EFFECTING ITS

EFFICIENCY


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SYNOPSIS

o Urea Reator

o Urea Reator !"e#$#at#on

o Para%eter e$$et#n& on t'e Reator e$$##en

* Loa+#n& Den!#t ,* NH-.CO, Rat#o -* H,O.CO, Rat#o /* Te%"erat0re an+ Pre!!0re

1* Re!#+ene T#%e 2* O, Content

o Con30!#on


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Urea Reator

This is the reactor in which ammonia and carbondioxide are reacting to one another forming urea.

Reactor Capcity=48m3

Urea Reactor

Trays

Shell

Holes

Inlet

Outlet


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UREA REACTOR SPECI4ICATION

Urea Reator S"e#$#at#on

!eight 4"m !o#es in Tray$Top%

14

&iameter 2.2'm (id 28

)he## (ateria# Carbon )tee# *ottom 312+ining (ateria# Cr,-i,(o 2',22,2 &esign Temp 218C

eep !o#e 13' /perating Temp 188C

)ie0e Tray 18 &esign ressure 1"g,cm2

!o#e )ie 8mm /peratingressure

1''g,cm2

Con0ersion 5 6ap *T the Tray 2.2'm


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PARAMETER E44ECTING ON UREA REACTORE44ICIENCY

* Loa+#n& Den!#t

,* NH-.CO, Rat#o

-* H,O.CO, Rat#o /* Te%"erat0re an+ Pre!!0re 1* Re!#+ene T#%e 2* O, Content


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LOADING DENSITY

Loa+#n& +en!#t:

7t is the ratio of amount of tota# materia#in the reactor and the tota# 0o#ume of the reactor.

rea yie#d increase with the increase of #oadingdensity.


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Loa+#n& +en!#t (5&.3#ter)NH/COONH,

6 Y#e3+ o$ 0rea at 78 oC

8*87 8

8*89 8

8* ,8

8*/ -8

8*, -/*1

8*/ /,*

8*2 /2*18*9 /9*-

*8 /9*


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E44ECT O4 MOLAR RATIO O4 NH-.CO,

rea formation reaction is

2-!3 9 C/2 -!2C//-!4 $-!2%2C/9!2/

2:1 Theoretica# yie#d


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I$ NH-.CO, Rat#o #n e;e!!

A+


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I$ NH-.CO, #! 3o=:

C/2 excess cause corrosion

rea yie#d wi## be #ow


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E44ECT O4 H,O.CO,

Urea formation reaction is:

2-!3 9 C/2 -!2C//-!4 $-!2%2C/9!2/


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CO, CONVERSION AND H,O.CO, GRAPH


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TEMPERATURE AND PRESSURE E44ECT

ressure ha0e direct re#ation with urea yie#d.


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TEMPERATURE PRO4ILE IN THEREACTOR:


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1'

-!3 Re#ationship with Temperature


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RESIDENCE TIME

H#&' $3o= rate

Con0ersion decrease.

ncon0erted reactants.

Recyc#e o0er #oad.*iuret formation minimum.

ower consumption increase.


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O>YGEN E44ECT

ir is in>ected with C/2 for the passi0ation.

/2 decrease the corrosion.


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CONCLUSION

-!3,C/2 shou#d ept at 3.3@3.'.!2/,C/2 shou#d ept at ..

+oading density shou#d ept moderate rate.

Residence time shou#d ept at 4' min./2 5 shou#d be .32.


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T'an5 o0

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Urea 3 Reactor Efficiency and Optimum Parameters