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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