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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Kimia Riset Journal of Energy, Mechanical, Material and Manufacturing Engineering FLUIDA Fullerene Journal of Chemistry Jurnal Difusi Industrial Research Workshop and National Seminar Jurnal Teknik Kimia dan Lingkungan
Yulistiani, Fitria
Jurusan Teknik Kimia, Politeknik Negeri Bandung
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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The Impact of Bifunctional Catalyst Synthesis Method Cu/ZnO/ZrO2/Al2O3-HZSM-5 on Dimethyl Ether Production from CO2 and H2 Alfiana Adhitasari; Fitria Yulistiani; Tufana Muhallik Jahulan; Fauzan Fadhillah
Fluida Vol. 17 No. 1 (2024): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v17i1.4782

Abstract

Indonesia has initiated a zero-carbon emission plan; one strategy is to replace Liquid Petroleum Gas (LPG) with eco-friendly fuels like Dimethyl Ether (DME). However, high Operational Expenditure (OPEX) for CO2 conversion technology poses a challenge. This research aims to address these techno-economic barriers by examining how catalyst synthesis methods, specifically Ultrasonic (US) and coprecipitation (CP), impact the performance of the bifunctional catalyst Cu/ZnO/Zr/Al2O3 – H+ Zeolite Socony Mobil-5 (CZZA-HZSM-5) in DME synthesis. The catalysts are characterized using the Brunauer-Emmett-Teller (BET) method and tested in a fixed-bed reactor at 240°C and 27.6 bar, followed by a bubble reactor containing methanol. Gas Chromatography-Mass Spectrometry (GC-MS) is used for analysis. The US method produces catalysts with higher surface area, pore volume, and average pore diameter than the CP method, with values of 45.93 m²/g, 0.3822 cc/g, and 1.6646 nm, respectively. Correspondingly, the US catalyst shows higher CO2 conversion and methanol yield, at 13.3% and 59.7%. DME as the final product is undetected in GC-MS analysis, likely due to differences in HZSM5 specifications, high reaction rates, and ΔG values above 1. This study enhances understanding of how catalyst synthesis methods affect CO2 conversion efficiency, crucial for developing sustainable fuel alternatives.
Pyrolysis of Medical Mask Waste into Liquid Fuel Using Activated Natural Zeolite Catalyst Fitria Yulistiani; Risdo Satriya Agati; Aria Henry Haidar; Ayu Ratna Permanasari
Fluida Vol. 17 No. 2 (2024): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v17i2.4789

Abstract

Due to the COVID-19 pandemic, there has been a rise in the amount of mask waste, which can be recycled using catalytic pyrolysis. The method targets polypropylene, the primary material used in mask production, and utilizes activated natural zeolite as a catalyst. This process can enhance the selectivity of oil product compounds such as benzene, toluene, ethyl benzene, and xylene. This research aims to investigate the impact of the Catalyst Feed mass ratio (C/F) and time on the distribution and recovery of oil products and to identify the optimal operating conditions for generating oil products comparable to the gasoline fraction. The steps are preparation, activation of zeolite catalysts, pyrolysis, component distribution analysis, and pyrolytic oil physical properties test. The variations in this study are C/F of 0.05, 0.1, and 0.2; and pyrolysis times of 30 and 60 minutes. Increasing the C/F to 0.2 reduced the oil yield to 41.18 %w/w, while increasing the time to 60 minutes reduced the char yield to around 3 %w/w. Pyrolysis at C/F = 0.05 for 30 minutes produced the highest monoaromatic composition of 22.884 %w/w, while pyrolysis at C/F = 0.2 produced the highest monoaromatic contents of 20.274 %w/w. The best operating conditions, namely 60 minutes of pyrolysis with C/F = 0.05, resulted in an oil yield of 47.31 %w/w and an octane number of oil products of 80.645. These conditions produce oil with properties of kerosene fraction with a density of 0.778 g/mL and viscosity of 1.005 cSt.
Co-Authors Adela Putri Nurarofah Alfiana Adhitasari Alifia Nuraeni Aria Henry Haidar Astrinida Rizkina Dwi Pancani Dianty Rosirda Dewi Kurnia Elizabeth, Lidya Fadila Isra Azzahra Fania Zulfa Salsabila Fauzan Fadhillah Heriyanto Hermagasantos Zein Hernawan, Kholiq Hidayatulloh, Irwan Keryanti, Keryanti KURNIASETIAWATI, ANNISA Linda Maulani Mariatha Martha Miranti Agustina Muhari, Emma Hermawati Nadya Amelinda Zahar Nancy Siti Djenar Naura Alfairuzy Quluby Neila Zakiah Hanun Nisya Qonita Zahra Nurcahyo Nurcahyo, Nurcahyo Permanasari, Ayu Ratna Prihandini, Ghusrina PURWINDA IRIANI Revani Triananda Risdo Satriya Agati Rispiandi Rispiandi Rizka Khairiyyah Azzahra Rizka Khairiyyah Azzahra Robby Sudarman Rosyidah Khoirunnisa Mahdan Royfa Fenandita Finadzir Rusdiyana Nur Putri Salimi Sheilla Aulia Sofiatul Mardiah Shoelarta, Shoerya Sihombing, Rony Pasonang Sri Utami Teguh Sasono Tufana Muhallik Jahulan Utary Nur Rachmani Fauzan Wachjoe, Conny K. WACHJOE, CONNY KURNIAWAN Wulan Suci Ramdhayani YANTI SUPRIANTI, YANTI Yaumi Istiqlaliyah Yulinda Alhay Nurhafshah Yulinda Alhay Nurhafshah