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All Journal Jurnal Ilmiah Teknik Kimia Scientific Contribution Oil and Gas Civitas: Jurnal Pengabdian Masyarakat
Annasit
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Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Energy Engineering Environmental Science Social Sciences Other

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Top Product Yield Optimization Of Depropanizer Column 1-2 In Alkylation Unit At Pt Pi Pangeran Rafli Pasha; Annasit; Sebhan Mulyawan
Scientific Contributions Oil and Gas Vol. 47 No. 1 (2024): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Unit Alkilasi merupakan bagian dari Unit PT PI. Dalam operasinya Unit Alkilasi mengolah feed berupa Spent Propane-Propylene dari Unit Polypropylene dan Residual Buthane-Butylene dari Unit Polimerisasi untuk menghasilkan produk seperti Light Alkilate, Refrigerant, dan LPG C-4 dan produk samping berupa High Alkilate. Kolom Depropanizer 1-2 berfungsi untuk memisahkan campuran propane-propylene dari n-Buthane dan fraksi yang lebih berat dengan proses distilasi bertekanan. Umpan Kolom Depropanizer berasal dari overhead product Kolom Desiobuthanizer 1-1. Kolom Depropanizer 1-2 dilengkapi dengan valve tray berjumlah 40 buah. Untuk mengetahui kinerja Kolom Depropanizer 1-2 masih pada efisiensi standar maka dilakukan evaluasi untuk mengetahui efisiensi tray overall. Dari hasil evaluasi dengan kondisi operasi laju alir umpan 40,152 ton/hari, temperatur feed 55,48oC, tekanan kolom 17,38 kg/cm2 dan data komposisi hidrokarbon dari laboratorium, maka diperoleh jumlah tray teoritis sebesar 28 buah dan reflux ratio 10. Efisiensi tray didapatkan sebesar 69%. Optimasi kondisi operasi adalah menentukan kondisi operasi optimal agar diperoleh revenue paling tinggi dengan meningkatkan yield produk atas. Berdasarkan percobaan trial and error menggunakan Study Case Aspen Hysys, diperoleh data bahwa kondisi optimal dicapai saat kondisi operasi kolom beroperasi pada suhu reboiler 95oC dan aliran refluks 90 ton/hari sehingga diperoleh yield produk atasnya 5,4592 ton/hari dengan kemurnian 99,5% w/w.
Optimasi Pemodelan Skema Proses pada Kolom Deetanizer Unit Kilang LPG Menggunakan Aspen Hysys Annasit; Kubela, Samessyela Kasih Putra; Setiyono, Agus
Jurnal Ilmiah Teknik Kimia Vol. 9 No. 2 (2025): JURNAL ILMIAH TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia, Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jitk.v9i2.48446

Abstract

LPG plant optimization modeling is important to improve overall plant performance. This can be done in various ways, such as increasing efficiency, productivity, and reducing costs. This research aims to obtain the optimum operating design scheme parameters to obtain the best LPG plant unit performance in terms of purity, product yield, energy consumption, and operational economics. Efficiency can be increased by improving production processes and reducing energy consumption. Productivity can be increased by increasing production capacity. In this research, the analysis method used involves a comparison between the LPG Plant unit design before and after optimization with field operational data, as well as data from literature studies. The factors that influence this difference include the value of equipment prices, the number of equipment, excessive utility consumption, and total sales of LPG production. Based on economic calculations, Scheme 1 has a Total Capital Investment (TCI) of $ 3,317,566.18, annual costs of $ 219,008.7346, and income of $ 125,666,446 (compared to scheme 2, which is $ 131,909,910.33), and LPG processing costs of $0.0199 per kg. By looking at the comparison of the performance and economic value of the two schemes, it can be concluded that scheme 1 is a superior concept for LPG production units because it has been considered from various aspects.
Emergency Response Workshop on Fire Prevention and Control Using Fire Blankets and Fire Extinguishers Nugroho, Budi Sulistiyo; Annasit; Nurrahman, Arif; Dharmawan, Aditya; Setiyono, Agus; Hamid, Farid Alfalaki; Handoko, Susilo; Widiyanto, Totok; Dewi, Astrie Kusuma; Indriani, Erdila
Civitas : Jurnal Pengabdian Masyarakat Vol. 2 No. 4 (2025): December 2025
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/civitas.v2i4.1175

Abstract

Fire incidents continue to increase in various regions in Indonesia due to low public awareness of prevention and early response measures. This community service activity aims to improve students' knowledge, skills, and preparedness in using fire blankets and portable fire extinguishers through experience-based training. The implementation methods include interactive lectures, live demonstrations, and controlled firefighting simulations. Pre- and post-training evaluations were used to measure changes in knowledge, skills, and safety attitudes. A total of 180 participants (aged 15–18 years) attended the training and completed the entire evaluation series. The results showed an average increase in knowledge scores from 52.3 to 86.8 points (+66%). Practical competence increased from 14% to 81% of participants who were assessed as being able to use the tools correctly. Attitudes and confidence in emergency response also showed significant improvement, from a score of 2.4 to 4.1 on the Likert scale. Qualitative feedback confirmed that participants felt better prepared to deal with small fires and had a better understanding of the importance of a safety culture in the school environment. These findings indicate that practice-based training is effective in strengthening fire preparedness among secondary school-aged groups. This workshop model offers an educational approach that can be replicated by other educational institutions as a risk mitigation strategy and to strengthen community-based safety culture.
Co-Authors Aditya Dharmawan, Aditya Agus Setiyono Agus Setiyono Astrie Kusuma Dewi, Astrie Kusuma Hamid, Farid Alfalaki Handoko, Susilo Indriani, Erdila Kubela, Samessyela Kasih Putra Nugroho, Budi Sulistiyo Nurrahman, Arif Pangeran Rafli Pasha Sebhan Mulyawan Widiyanto, Totok