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Simulation of dimethyl ether production as LPG substitute using LNG from Arun terminal with tri-reforming and direct synthesis method Rahmatullah, Faiprianda Assyari; Pamungkas, Tegar; Mutia, Sarah; Zulfansyah, Zulfansyah; Rionaldo, Hari
Konversi Vol 13, No 1 (2024): April 2024
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v13i1.17946

Abstract

Increased demand for LNG compels Indonesia to import to meet these needs. Substituting LNG with alternative fuel emerges as a strategy to reduce LPG imports. One such alternative can be used for LPG substitution is Dimethyl Ether. Dimethyl ether is a colorless compound possesses a heating value of 30,5 MJ/kg and an energy equivalency with LPG ranging between 1,56 – 1,76. Dimethyl ether can be directly synthesized from synthetic gas produced through natural gas reforming. Production of synthetic gas from natural gas employs the tri-reforming method which integrating steam reforming, dry reforming, and partial oxidation methods in a single reactor offering optimal energy utilization advantages and minimal environmental impact. Dimethyl ether production from synthetic gas is using direct synthesis method, combining methanol synthesis and dehydration in a single reactor providing high conversion advantages compared to indirect synthesis method. Simulation was carried out using process simulator program ASPEN Plus V11. Based on the simulation results, dimethyl ether yield and selectivity is 99.62%.
Upaya Peningkatan Bed Occupancy Rate Pelayanan Rawat Inap dengan Quantitative Strategic Planning Matrix Pamungkas, Tegar; Purwadhi; Handayani, Nining
ManBiz: Journal of Management and Business Vol. 4 No. 1 (2025): ManBiz: Journal of Management and Business
Publisher : Institut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/manbiz.v4i1.5837

Abstract

Quality healthcare services are essential to meet patient needs and compete in the market, supported by reliable resources (Yuniawati et al., 2021). The quality of inpatient services is measured through indicators such as Bed Occupancy Rate (BOR) and Length of Stay (LOS), with an efficient BOR ranging from 60-85% according to the Ministry of Health, while RS Surya Medika PKU Muhammadiyah Sumbawa has 55 beds and a BOR of only 40.34% in 2023, below the established standards (Sudra, 2010). To improve BOR, it is crucial for hospitals to balance the quality of medical services, patient safety, and staff welfare, as well as formulate strategies that consider internal and external factors using tools such as the Quantitative Strategic Planning Matrix (QSPM) to determine appropriate strategic priorities. This research was conducted at RS Surya Medika PKU Muhammadiyah Sumbawa, focusing on inpatient services with a low BOR of 40.34%, compared to the ideal range of 60-85%, and is planned to take place from April to July 2024 using qualitative descriptive methods. The study population includes staff and inpatient patients, with data collection conducted through in-depth interviews, Focus Group Discussions, and direct observations, as well as analysis performed using Gap Analysis, MCUA method, Fishbone Diagram, SWOT analysis, and QSPM to formulate effective alternative strategic planning. The conclusions of this study indicate that several factors influence the Bed Occupancy Rate (BOR) of inpatient services at RS Surya Medika PKU Muhammadiyah Sumbawa, where internal factors affecting BOR include service quality and the completeness of service types. Additionally, external factors such as customer satisfaction and service promotion also play a significant role in attracting more patients. To enhance BOR, RS Surya Medika PKU Muhammadiyah Sumbawa needs to develop the types of services offered, which is expected to meet patient needs and improve their satisfaction, thereby increasing the bed occupancy rate in the hospital. This research is expected to provide significant benefits to RS Surya Medika PKU Muhammadiyah Sumbawa as a preliminary study for the relationship between internal and external factors affecting Bed Occupancy Rate (BOR).