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All Journal Indonesian Research Journal on Education Catalyx : Journal of Process Chemistry and Technology
Safitri, Lian
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Cost Optimization Analysis of Energy Efficiency During Compressor Shutdown at Platforming Unit I Safitri, Lian; Nugroho, Budi Sulistiyo; Pratiwi, Zahru Wilda; Jalil, Abdul; Trihadi, Wanda; Zulkarnain, Zulkarnain
Indonesian Research Journal on Education Vol. 4 No. 4 (2024): irje 2024
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/irje.v4i4.1243

Abstract

The compressor (C-100) located in the Hydrobon & Platforming I unit is designed to meet the need for recycled gas to keep the H2/HC ratio optimal in the Platforming I section and minimise the rate of coke formation in the reactor. In addition, a Compressor (C-100) is used during the start-up process of the Platforming I unit to maximise LPG production. However, PT X is currently focusing on reformatting production to meet market demand, which prompts considering commissioning a Compressor (C-100) for energy efficiency and cost savings. The shutdown of the previous compressor, which consumed 2400 kWh per day at an annual electricity cost of IDR 8,347,273,344.00, has significantly reduced energy consumption. However, other operational costs, such as maintenance and lube oil make-up, remained during the period, with annual expenses of IDR 440,036,956.00 and IDR 48,741,977.00, respectively. In addition, energy from alternative sources such as steam and cooling water also increased to maintain process performance, with total annual operating costs of IDR 56,256,360,451.20 and IDR 179,789,760.00, respectively. Overall, the operating cost of the Compressor (C-100), which includes electricity, make-up lube oil, and maintenance, totalled IDR 8,836,052,276.80 each year. A review of the compressor operation could provide a solution for cost optimisation and energy efficiency for the company.
Cost Optimization Analysis of Energy Efficiency During Compressor Shutdown at Platforming Unit I Safitri, Lian; Nugroho, Budi Sulistiyo; Pratiwi, Zahru Wilda; Jalil, Abdul; Trihadi, Wanda; Zulkarnain, Zulkarnain
Indonesian Research Journal on Education Vol. 4 No. 4 (2024): irje 2024
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/irje.v4i4.1347

Abstract

The compressor (C-100) located in the Hydrobon & Platforming I unit is designed to meet the need for recycled gas to keep the H2/HC ratio optimal in the Platforming I section and minimise the rate of coke formation in the reactor. In addition, a Compressor (C-100) is used during the start-up process of the Platforming I unit to maximise LPG production. However, PT X is currently focusing on reformatting production to meet market demand, which prompts considering commissioning a Compressor (C-100) for energy efficiency and cost savings. The shutdown of the previous compressor, which consumed 2400 kWh per day at an annual electricity cost of IDR 8,347,273,344.00, has significantly reduced energy consumption. However, other operational costs, such as maintenance and lube oil make-up, remained during the period, with annual expenses of IDR 440,036,956.00 and IDR 48,741,977.00, respectively. In addition, energy from alternative sources such as steam and cooling water also increased to maintain process performance, with total annual operating costs of IDR 56,256,360,451.20 and IDR 179,789,760.00, respectively. Overall, the operating cost of the Compressor (C-100), which includes electricity, make-up lube oil, and maintenance, totalled IDR 8,836,052,276.80 each year. A review of the compressor operation could provide a solution for cost optimisation and energy efficiency for the company.
Fault Tree Analysis of Increased Pressure Drop in Hydrotreater Reactor Pratiwi, Zahru Wilda; Nugroho, Budi Sulistiyo; Safitri, Lian; Jalil, Abdul; Trihadi, Wanda; Ramli
Catalyx : Journal of Process Chemistry and Technology Vol. 1 No. 2 (2024): October
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v1i2.357

Abstract

The treating stage in a Catalytic Reforming Unit (CRU) is a critical process to ensure the longevity and efficiency of the reforming catalyst. However, anomalies like sudden and significant increases in reactor pressure drop, as observed in this case, can disrupt operations and reduce the unit's overall performance. It is crucial to identify the root cause of the observed pressure drop anomaly using the Fault Tree Analysis (FTA) method to systematically investigate the issue from multiple perspectives, enabling the identification of both minor and significant contributing factors. The FTA results indicate that external debris introduced during a recent catalyst changeover (COC) activity is the most likely cause. This allegation is supported by the analysis of equipment operation data and feed condition records, which did not reveal any significant changes. Given the absence of internal factors, the external influence of the COC activity emerges as the primary explanation for the pressure drop increase. To prevent similar occurrences in the future, it is crucial to implement rigorous cleaning and inspection procedures during turn-around (TA) activities to minimize the risk of debris entering the system. Monitoring reactor pressure drop and feed quality can also help detect and address potential issues early on. By taking proactive measures, the reliability and efficiency of the treating stage can be maintained, ultimately improving the overall performance of the CRU.
Co-Authors Abdul jalil Nugroho, Budi Sulistiyo Pratiwi, Zahru Wilda Ramli Trihadi, Wanda Zulkarnain Zulkarnain