Analisa Corrosion Rate dan Remaining Life Pada Storage Tank T-XYZ Berdasarkan API 653 di Kilang PPSDM Migas
DOI:
https://doi.org/10.37525/mz/2020-2/259Keywords:
tangki timbun, laju korosi, umur sisa, API std 653Abstract
Salah satu peralatan yang banyak terdapat dalam industri migas adalah tangki penimbun. Keberadaan tangki penimbun sangat vital pada produksi industri perminyakan. Sering terjadi kecelakaan yang menimpa tangki timbun dalam industri migas yang menimbulkan kerugian besar. Pada tulisan ini dibahas tentang laju korosi (corrosion rate) dan umur sisa (remaining life) pada fixed cone roof tank, yang terletak di atas tanah (aboveground tank) dalam kondisi in-service dengan API Std 653 5th edition 2014 sebagai standar acuan.
Metode yang digunakan dalam pembahasan diawali dengan studi literatur dari berbagai referensi dan penelitian sebelumnya, kemudian pengambilan data lapangan dan kemudian dianalisa. Dari hasil evaluasi ketebalan dinding tangki di dapat bahwa ketebalan tangki minimum masih relevan atau masih memenuhi persyaratan. Sedangkan hasil analisis menunjukkan laju korosi untuk masing-masing dinding tangki course 1st, course 2nd dan course 3rd adalah 0,06, 0,04 dan 0,08 mmpy. Hasil analisis menunjukkan umur sisa untuk masing-masing dinding tangki course 1st, course 2nd dan course 3rd adalah 32,67, 39,00 dan 23,25 tahun.
Dari hasil analisa dapat disimpulkan bahwa tangki penimbuna (storage tank) masih layak beroperasi dan masih memenuhi syarat untuk inspeksi berkala 5 tahun yang akan datang dari inspeksi terakhir.
References
Anonim1, Tangki dan Fasilitasnya, Cepu, Pusdiklat Migas, 2014
Anonim2, Bunding and spill management, Liquid Storage Guideline, Environment Protection Authority, 2007
API Std 650 12th, Edition, Welded Tank for Oil Storage, 2013
API Std 653 5th Edition, Tank Inspection, Repair, Alteration and Reconstruction, 2014
ASME Section V 2010 edition, Nondestructive Examination, 2010
https://almeganews.wordpress.com/2019/08/26/kalibrasi-tangki-minyak-kelapa-sawit-palm-oil/ diunduh tanggal 18 Oktober 2020
Trethewey, K.R dan Chamberlain, J, Korosi Untuk Mahasiswa dan Rekayasawan, PT Gramedia Pustaka Utama, Jakarta, 199130Volume 2 No 2 tahun 2020
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