Analisa Risiko Pada Peralatan Statis Di Corrosion Loop CO2 Removal Pabrik Ammonia Dengan Penerapan Risk Based Inspection

Kosim, Moh. Ali (2023) Analisa Risiko Pada Peralatan Statis Di Corrosion Loop CO2 Removal Pabrik Ammonia Dengan Penerapan Risk Based Inspection. Masters thesis, Institut Teknologi Sepuluh Nopember.

Text THESIS rev3_compressed.pdf - Accepted Version Restricted to Repository staff only Download (10MB) | Request a copy

Abstract

Di Pabrik Ammonia - 4 PT. Pupuk Kaltim, peralatan statik di corrosion loop CO2 Removal sering menjadi penyebab terjadinya unscheduled shutdown. Tentu inspeksi dan perbaikannya pada shutdown terjadwal maupun unscheduled shutdown membutuhkan sumber daya yang besar. Namun demikian, Pemeriksaan peralatan statik seperti bejana tekan dan alat penukar panas saat ini masih berdasarkan basis waktu dan berbasis kondisi. Pada pemeriksaan tersebut semua peralatan statik diperiksa baik peralatan kritis maupun tidak kritis yang terdiri dari 5 jenis coloumn dan 6 heat exchanger, dengan interval pemeriksaan yang sama yaitu 2 tahunan. Penerapan Risk-Based Inspection (RBI) di loop corrosion CO2 Removal berdasarkan API RP 581 merupakan kombinasi dari Probability of Failure (POF) dan Consequence Of Failure (COF). POF untuk bejana tekan menggunakan metode generic failure frequency (gff) sedangkan untuk tube bundle dengan metode Weibull. Kalkulasi COF mengacu pada area-based consequence dan Financial Consequence. Penerapan ini menghasilkan 5 peralatan risiko tinggi dan 6 Peralatan risiko medium. Sedangkan untuk jadwal pemeriksaan, 5 peralatan harus segera diperiksa, 1 peralatan 3 tahun mendatang, 2 peralatan 7 tahun mendatang dan 3 Peralatan lebih dari 20 tahun mendatang. Pemeriksaan yang akan dilakukan dengan metoda yang fokus sesuai damage mechanism peralatan meliputi Visual Testing, Ultrasonic Testing (UT), Radiography Test (RT), Eddy Current Test, Steel Testing, Alternating Current Field Measurement (ACFM) dan Magnetic Flux Leakage (MFL).

============================================================
In Ammonia Plant - 4 PT. Pupuk Kaltim, static equipment in corrosion loop CO2 removal is often the cause of the unscheduled shutdown. Certainly, the inspection and repair especially on static equipment during scheduled and unscheduled shutdowns require great power. . Meanwhile, the inspection of static equipment such as pressure vessels and heat exchangers is still based on time and condition. In this inspection, all static equipment is checked, both critical and non-critical equipment consisting of 5 columns and 6 heat exchangers, with the same inspection interval of 2 years. Implementation of Risk-Based Inspection (RBI) in loop corrosion CO2 Removal based on API RP 581 is a combination of Probability of Failure (POF) and Consequence Of Failure (COF). POF for pressure vessels uses the generic failure frequency (gff) method while for tube bundles use the Weibull method. The COF calculation refers to Area-based consequences and Financial Consequences. This implementation resulted in 5 high risk equipment and 6 medium risk equipment. As for the inspection schedule, 5 equipment must be inspected immediately, 1 equipment in the next 3 years, 2 equipment in the next 7 years, and 3 equipment over the next 20 years. The inspection will be conducted using a method that focuses on the damage mechanism of the equipment including Visual Testing, Ultrasonic Testing, Radiography Test, Eddy Current Test, Steel Testing, Alternating Current Field Measurement, and Magnetic Flux Leakage.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	: Corrosion loop, inspection schedule, inspection method, Risk Based Inspection (RBI), static equipment, unscheduled shutdown,jadwal pemeriksaan, metode pemeriksaan, peralatan statik
Subjects:	T Technology > T Technology (General) > T174.5 Technology--Risk assessment.
Divisions:	Interdisciplinary School of Management and Technology (SIMT) > 61101-Master of Technology Management (MMT)
Depositing User:	MOH. ALI KOSIM
Date Deposited:	17 Feb 2023 12:16
Last Modified:	17 Feb 2023 12:16
URI:	http://repository.its.ac.id/id/eprint/97589

Actions (login required)

View Item