Wahyuni, Atik Sinawang (2019) Hazard And Operability Study (Hazop) And Determination Of Safety Integrity Level (Sil) With Fault Tree Analysis At 101e Absorber Pt. Petrokimia Gresik. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pada proses pembentukan amoniak Petrokimia Gresik terdapat salah saru proses yang disebut pemurnian gas sintesa dimana kadar CO₂ dihilangkan dengan absorbsi menggunakan larutan benfield di absorber 101E. Pada Unit 101E sangat penting sekali untuk mengatur kandungan CO₂ antara 0,05%-0,1% dalam raw synthesis gas sebelum masuk ke proses metanasi karena tingginya kandungan CO₂ dapat menyebabkan kenaikan temperatur sehingga methanator harus dimatikan. Untuk meminimalkan risiko pada plant, identifikasi potensi bahaya yang mungkin terjadi di tiga node yakni unit 101E, 132F, 102E dilakukan dengan menggunakan HAZOP dan Analisis SIL dengan metode FTA. Berdasarkan identifikasi 12 komponen PCS, 2 komponen memiliki kategori high risk dan 10 komponen Lainnya memiliki kategori medium risk. Nilai SIL yang didapat dari perhitungan BPCS PFD adalah SIL 1 dengan Probability Failure Demand (PFD) senilai 0,086671885 per tahun. Setelah mengkonfigurasi elemen akhir BPCS dengan menambahkan valve redundan dan ESDV, PFD sistem diturunkan menjadi 0,004297348 per tahun dan secara signifikan meningkatkan SIL senilai SIL .
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In the process of forming ammonia Petrochemical Gresik there is one process called synthesis gas purification where CO₂
levels are removed by absorption using a benfield solution on the 101E absorber. In Unit 101E it is very important to regulate CO₂ content between 0.05% -0.1% in raw synthesis gas before entering the methane process because high CO₂ content can cause a rise in temperature so the methanator must be shutdown. To minimize the risk to the plant, identify potential hazards that may occur on three nodes, namely 1 01E, 132F, 102E units using HAZOP and SIL Analysis using the FTA method. Based on the identification of 12 BPCS components, 2 components have a high risk category and the other 10 components have a medium risk category. The SIL value obtained from the calculation of BPCS PFD is SIL 1 with Probability Failure Demand (PFD) of0,086671885 for year. After configuring the final element of BPCS by adding a redundant valve and ESDV, the system PFD was reduced to 0,004297348 for year and significantly increased SIL worth SIL 2.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSF 620.86 Wah h-1 2019 |
| Uncontrolled Keywords: | Pemurnian gas sintesa, Hazard and Operability Study, SIL, failure rate, PFD |
| Subjects: | T Technology > T Technology (General) > T55 Industrial Safety |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Atik Sinawang Wahyuni |
| Date Deposited: | 21 Oct 2024 06:57 |
| Last Modified: | 21 Oct 2024 06:57 |
| URI: | http://repository.its.ac.id/id/eprint/68780 |
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