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ASAM OKSALAT
Bahan Baku sedikit
dimanfaatkan
Peningkatan Ekonomi
Kebutuhan asam
oksalat
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Komponen Persen (%)pati 28,200lemak 0,400protein 1,300Vitamin B1 0,000Vitamin B2 0,000Vitamin C 0,019kalsium 0,021fosfor 0,059besi 0,000abu 0,900air 69,100Total 100,000
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Provinsi Produksi (ton/tahun)
Sumatra Utara 778
Sumatra Barat 272
Sumatra Selatan 229
Jawa Barat 39.454
Jawa Timur 20.745
Jawa Tengah 8.799
Bali 198
Nusa Tenggara Barat 289
Nusa Tenggara Timur 2.149
Kalimantan Tengah 1.036
Kalimantan Selatan 2.218
Kalimantan Timur 3.458
Sulawesi Utara 387
Sulawesi Selatan 5.557
Maluku 630
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(C6H10O5)n + n H2O n C6H12O6
H2
SO4
C6H12O6 + 6HNO3 3C2H2O4 + 6NO + 6H2OV2O5/Fe3+
Reaksi pada Tangki Hidrolisis:
Reaksi Oksidasi dengan Asam Nitrat:
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Rotary Dryer
27menuju ke cyclon,,udra Fe2(SO4)3,H2SO4C2H2O4.2H2O, uapair,udara
24dari centrifuge IIC2H2O4.2H2O, H2SO4,Fe2(SO4)3,H2O
26menuju Hammer MillC2H2O4.2H2O,H2SO4, Fe2(SO4)3
25udara kering
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Komponen
Masuk (kg) Keluar (kg)
Aliran 24 Aliran25 Aliran 26 Aliran 27
Fe2(SO4)3 3,095 3,030 0,065
H2O 2512,864 47,884
C2H2O4.2H2O 21570,299 21116,665 453,634
H2SO4 1,474 1,443 0,031
Uap Air 2464,980
Udara 23108,518 23108,518
Σ 24087,733 23108,518 21169,022 26027,229
Total 47196,251 47196,251
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ROTARY DRYER
Udara panas
( 95oC )
Solid dari Centrifuges 2
(300 C)Menuju ke
Ball mil
Menuju ke Cyclon
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Komponen masukEntalpi udara panas masukH'G2 = cs (TG2 – T0) + H2. ƛoH'G2 = (1,005 + 1,88 H) (TG2 – T0) + H2. ƛoEnthalpi feed masuk :H's1 = cps (TS1 – T0) + X1 cpa(TS1 – T0) Komponen keluarEnthalpi udara keluar :H'G1 = cs (TG1 – T0) + H1. ƛo
= (1,005 + 1,88 H) (TG1 – T0) + H1. ƛoEnthalpi produk keluar :H's2 = cps (TS2 – T0) + X2 cpa (TS2 – T0) (Pers. 9.10-24 Geankoplis 3rd ed, p. 562)
Neraca Panas Rotary Dryer :G. H'G2 + Ls. H's1 = G. H'G1 + Ls. H's2 + Qloss
(Pers. 9.10-26 Geankoplis 3rd ed, p. 562)
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Panas Masuk (kcal/hari) Panas Keluar (kcal/hari)
H in 74383,452 H out 336626,969
Q udaramasuk 286762,35 Q loss 14338,118
Jumlah 361145,808 Jumlah 361145,808
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•Unit Penyedian Air1. Air sanitasi2. Air pendingin3. Air proses4. Air umpan boilerTotal Air yang dibutuhkan 4553,365 m3 /hari •Proses Pengolahan Air•Bahan Bakar
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Alat K3 Area K3
Alat Pelindung Kepala Reaktor, Rotary Crusher, Kristalizer, TangkiRedissolving, Rotary Dryer, Evaporator,
Alat Pelindung Tangan Reaktor, Rotary Crusher, Kristalizer, TangkiRedissolving, Rotary Dryer, Evaporator
Alat Pelindung Kaki Reaktor, Rotary Crusher, Kristalizer, TangkiRedissolving, Rotary Dryer, Evaporator
Alat Pelindung Badan Reaktor, Rotary Dryer,
Ear Plug Rotary Crusher, Evaporator
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Alat K3 Area K3
Alat Pelindung Kepala Tangki Penampung, Tangki Penyimpanan Fe2(SO4)3,
HNO3, H2SO4,
Alat Pelindung Tangan Tangki Penampung, Tangki Penyimpanan Fe2(SO4)3,
HNO3, H2SO4,
Alat Pelindung Kaki Tangki Penampung, Tangki Penyimpanan Fe2(SO4)3,
HNO3, H2SO4,
Alat Pelindung Badan Heat Exchanger
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NO. Nama alat Control
1 Reaktor hidrolisa • Temperature control• Level Indikator
2 Reaktor oksidasi • Temperature control• Level Indikator
3 Kristalizer • Temperature control
4 Centrifuge • Flow Control
5 Heat Exchanger • Temperatur Control
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Limbah Pengolahan
Padat
1. Padatan dari filter press langsung dijual ke produsenpenjual pupuk.
2. Berupa debu dan kristal yang terikut udara keluarrotary dryer yang diserap oleh cyclone, kemudianpartikel yang terpisahkan di alirkan ke tangki produk.
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Limbaha Pengolahan
Cair
Berupa mother liquor hasil dari centrifuge Idan II yang kemudian akan dikembalikan kedalam proses yaitu pada reaktor hidrolisis,oksidasi, dan tangki redisssolving
Gas
Berupa gas NO hasil dari reaktor oksidasikemudian diserap oleh absorber dandikontakkan dengan udara kemudiandikontakkan air menjadi HNO3 yang dapatdigunakan untuk reaktan proses oksidasi.
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TERIMA KASIH