Utilities

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PT Pertamina (Persero) RU-VIBalonganJumat, 30 Mei 2014

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UTILITY FACILITIESWIF SALAM DARMACOOLING TOWERPOWER PLANT

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KILANG RU-VI BALONGAN Tata Letak (Lokasi)UBalonganWIF Salamdarma

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Pertamina UP-IV Cilacap

Sistem Cooling Water Once through :KeuntunganDesign untuk kapasitas besar,injeksi chemical rendah,operasi sederhana,investasi rendah,maintenance rendah. KerugianKotoran chemical banyak,dan butuh pompa besar.Close RecirculationOperasi sederhana,injeksi kimia kecil,maintenance rendah.KerugianMemerlukan lahan yang luas,dan tambahan biaya chemical.

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Cooling Water (CW) System

Pertamina UP-IV Cilacap

Chemical Control Untuk menghilangkan zat zat yang berpotensi korosi dan scaling pada system cooling water dan BFW adalah sbb :Sistim cooling waterScale dengan memperbesar blow down. Corrosion dengan corrosion inhibitor, biasanya chromate,pholyphosphate,Nitrites,Silicates,Amines dan organic agent.Microorganisme biasanya digunakan sodium hypoclorit.Sistim BFWScale untuk menghilangkan digunakan Zeolite sodium,Magnesim Zeolite,hydrogen exchange resin,sodium phospate.Corrosion untuk menanggulangi dengan Hydrazine, sodium sulfite dan corrosion inhibitor

Pertamina UP-IV Cilacap

*123456Sehubungan dengan penurunan kualitas Cooling Water akibat adanya kontaminan oil (hidrokarbon) , sebagai upaya recovery maka dosis chemical cooling water dinaikkan dan dijaga pada dosis sbb :

ChemicalFungsiDosis, ppmKeteranganAwaluntuk recovery3DT104scale inhibitor & dispersant24.230.0Mengontrol terbentuknya kerak besi, mangan , kalsium phosphate, zinc dan padatan tersuspensiN-1393corrosion inhibitor8.124.3Dinaikkan sampai 3x dosis normal kerana indikasi corr rate naik akibat adanya hidrokarbon N-7348biodispersant5/ bulan10/ mingguMengangkat biofoulingN-7330non Ox-Boicide100/ bulan100/ mingguMenghambat pertumbuhan microbiologiN-90001algaecide100/ bulan100/ bulanMengontrol algae dan bakteri

Pertamina UP-IV Cilacap

*ProblemLangkah selanjutnya yang dibutuhkanPICProgress/ Target

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PT Pertamina (Persero) RU-VIBalongan

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