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8/17/2019 5. Amonium Sulfat (1)
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Amonium sulfat(NH
4)
2SO
4
Zwavelzuur Amoniak (ZA)
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evaporator Saturator
centrifuge dryer
NH3c NH3uap
H2SO4
Slurry ZA
KristalZA
ot!er li"uor
ZA
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#ar$onasi rea#si filtrasi netralisasi
evaporasi #ristalisasi
NH3
H2%
&O2&a&O3
gips As sulfat
'rying n cooling
Anti ca#ing
produ#
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a!an $a#u ZA * n
NH3&O2
H2SO4+ips
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Spesifi#asi amonia#Kemurnian , -- . --*/ 0
Su!u 1 o&e#anan , 3 . 4 #g cm2
Kadar air 5 %*/ 0 ma#s6Spesifi#asi asam sulfat
H2SO4 5-7*/ 0minH2O 5 2 0 ma#s
emp 5 34 o&
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&O2 ,&O2 5 --0 min
nert 5 %*3 0 ma#semp 3/o&e# %*44 #g cm2
+ips&aSO482H2O min -9 0:2O/ 5 %*33 0 ma#s; total %*
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a!apan
:retreatment=ea#si
:emisa!an pemurnian
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=ea#si ZA dan
Saturator =3% A 'H2SO4 > ? 2 NH3 g (NH4)2SO4 ? @
Kondisi operasie#anan atmosferis
Su!u %% 3o&:arameter #ontrol ,
>evel , 3*/ . 4*/ m Acidity %* 0
Konsentrasi #ristal
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=ea#si ZA
&ar$onation :rocess(NH4)2&O3 ? &aSO482H2O (NH4)2SO4
? &a&O3 ? 2 H2OKondisi operasi
Su!u 9% o&
Kadar NH3 direa#tor B 5 % g >=ea#tor $erpengadu# * 4 $ua! disusunseri
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pretreatment
Cvaporator C 3%4 A NH3 li"uid uap
:emanas steam % #g cm 2* 7%o&Kondisi operasi :5 4 #g cm 2
arget , su!u amonia# uap o&
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:retreatment Kar$onasi
2NH3 ? &O2 ? H2O (NH4)2&O3 ? @Kondisi operasi
NH3in 5 29 o& &O2in 5 3% o&
operasi5
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:emisa!an #ristal
&entrifuge separator 3% ASlurry* yaitu li" am sulfat,#ristal 5 ,
: 5 atm* 5 %%o&:arameter #ontrol , --0 #ristal
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:emisa!an filtrasi
emisa!#an &a&O3 dari ZABacum filter 5 3
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Netralisasi
erea#si#an sisa NH3 dengan H2SO4menDadi ZA
(NH4)2&O3 ? H2SO4 (NH4)2SO4 ?H2O ? &O22NH4H&O3 ? H2SO4 (NH4)2SO4 ? 2H2O ? &O2pH 5 4 . /
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Cvaporasi dan #ristalisasi
enguap#an air dan pem$entu#an#ristal
Steam pemanas: 5 2 #g cm2g* 3%o&:arameter operasi ,
Kadar air masu# 5
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:engeringan
=otary dryer 3%2engering#an sampai --*7/ 0 #ering (min)edium pengering udara cocurrent* udr
masu#
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'rying n cooling
endingin#an dan mengering#an produ#Kadar air masu# 5 0
:arameter ,Kadar air #eluar 5 %* / 0
out 5 /% o&
Kadar asam $e$as 5 %* 0 ma#s=otary dryer
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:enyimpanan produ#
:rodu# dari dryer di#irim #e !opper pengantongan dan pengepa#an
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Spesifi#asi ZA
SN %2 9
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Neraca massa overall
ZA (OronEio 'e Nora . taly)NH3 li" 5