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All Journal Jurnal Sains Materi Indonesia Jurnal Neutrino : jurnal fisika dan aplikasinya Jurnal Sumberdaya Alam dan Lingkungan Konversi Jurnal Teknik JURNAL PENDIDIKAN TAMBUSAI Jurnal Inovator Jurnal Daur Lingkungan ASEAN Journal of Chemical Engineering Kinetika Yumary: Jurnal Pengabdian kepada Masyarakat Jurnal Energi Baru dan Terbarukan AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Jurnal Teknologi Chemical Engineering Journal Storage (CEJS) Innovative: Journal Of Social Science Research Serambi Engineering Jurnal Pengabdian Kepada Masyarakat
Robert Junaidi
Politeknik Negeri Sriwijaya
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Journal : Konversi

 1 
Making methane gas from CO2 using Ni/Al2O3 catalyst in a fixed bed reactor Yuliani, Tasya Dwi; Junaidi, Robert; Meidinariasty, Anerasari
Konversi Vol 12, No 2 (2023): OKTOBER 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v12i2.17111

Abstract

CO2 emissions are one component of greenhouse gases, it is estimated that around 18.35 billion tons of CO2 are released every year (Sulistyono, 2012). This is because the world economy is recovering from the Covid-19 crisis by relying on coal. Based on IEA data, CO₂ emissions from energy combustion and industrial processes accounted for almost 89% of the energy sector's greenhouse gas emissions in 2021, while CO2 emissions from gas combustion contributed 0.7%. One way to reduce CO₂ in the atmosphere is by converting CO2 and using it into chemicals, for example hydrogenating CO2 into methane. The aim of this research is to create a fixed bed reactor for CO₂ methanation so as to reduce carbon dioxide pollution, while the research will use a Ni catalyst with alumina support (AL2O3)2. In this research, CO₂ was used as a raw material with a Ni/Al2O3 catalyst. Methane gas produced from carbon dioxide using a fixed bed reactor is a little at 1.34% Vol with a flow rate of 0.3 L/m and a concentration of 1 M to 9.25% Vol with a flow rate of 0.1 L/m and a concentration of 3 M for 60 minutes at a temperature of 55°????.
The ability of the Ni/Al2O3 catalyst in the CO2 methanation process in terms of variations in CO2 flow rate and catalyst Parega, Sultan; Junaidi, Robert; Nugroho, Didiek Hari; Niawanti, Helda
Konversi Vol 13, No 2 (2024): OKTOBER 2024
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v13i2.20235

Abstract

Carbon dioxide (CO2) is one of the biggest contributors to the greenhouse effect. Based on International Energy Agency (IEA) data, global emissions of carbon dioxide (CO2) from burning energy and industrial activities will reach 36.8 billion tons in 2022. The increase in emissions in 2022 will mainly come from burning coal and fuel oil (Fuel Oil). Carbon dioxide emissions from coal rose 1.6% while fuel oil emissions increased 2.5%. One effort to reduce carbon dioxide emissions is to convert carbon dioxide into methane gas (CH4) which can be used as fuel. This research aims to produce methane gas from carbon dioxide using Ni/Al2O3 catalyst treatment and varying CO2 flow rates. In this research, CO2 was used as a raw material with a Ni/Al2O3 catalyst and Zn metal. Based on the research results, the highest conversion yield of methane gas was 49.23% with a variation of 0.05 L/minute with Ni_R4 catalyst treatment
Regeneration of Ni/Al2O3 catalyst in CO2 methanation Melati, Rima; Junaidi, Robert; Zamhari, Mustain
Konversi Vol 13, No 2 (2024): OKTOBER 2024
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v13i2.19951

Abstract

CO₂ emissions are one form of greenhouse gas (GHG) emissions that contribute to global warming. CO₂ contributed 175.62 million tons in 2021, impacting greenhouse gas levels. One strategy to reduce the concentration of CO₂ in the atmosphere is to convert CO₂ gas into useful chemicals. One example of this is the hydrogenation of CO₂ to produce methane, which can serve as an alternative to LPG. The aim of this research is to produce methane gas by developing a fixed bed reactor in a simple manner. The catalyst Ni/Al2O3 with 20 grams and five regenerations could produce CH₄ up to 49.73% compared to 39.06% for those with 10 grams. However, the H2 gas remaining is higher for those with 10 grams (1.454 ppm compared to 1.042 ppm). Also, The CO2 gas remaining is higher for those with 10 grams (58.18% compared to 47.92%). The results of this study can be the basis for developing energy policies, encouraging investment in clean energy technologies, and supporting the reduction of greenhouse gas emissions for energy sustainability and resilience.
The effect of Ni/Al2O3 catalyst mass variation and operation time on the CO2 methanation process Pratama, Yongki; Junaidi, Robert; Nugroho, Didiek Hari
Konversi Vol 14, No 2 (2025): OCTOBER 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v14i2.23597

Abstract

Carbon dioxide (CO2) is one of the biggest contributors to the greenhouse effect. Based on data from the International Energy Agency (IEA), greenhouse gas (GHG) emissions continue to increase, reaching 37.8 billion tons in 2024. One way to reduce carbon dioxide (CO2) is to convert carbon dioxide (CO2) into methane (CH4) through a methanation process using a Fixed Bed Reactor. This study was conducted by varying the mass of Ni/Al2O3 catalyst between 55 grams and 60 grams and the operating time between 90, 100, 110, 120, and 130 minutes, as well as adding 20 grams of Zn promoter to improve catalyst stability performance. A Multi Gas Detector Analyzer was used to analyze the methane (CH4) gas produced. The results of this study showed that the highest percentage of methane gas (CH4) produced was obtained in sample 10 with a Ni/Al2O3 catalyst mass of 60 grams and an operating time of 130 minutes, which was 58.35%.
Co-Authors ., Anerasari Abu Hasan Ahmad Muhajir, Ahmad Amanah, Tria Rizki Amin, Jaksen M Anerasari Meidinariasty Arisqi, Muhamad Muammar Arizal Aswan Aulia, Risa Azizah, Roro Rizqi Ramadhani Darmawan, Azzahrah Putri Didiek Hari Nugroho Ekawati, Linda Erwana Dewi Fadarina Fatahul Arifin, Fatahul Gilbert, Amudi Jhon Harwanda, Muhammad Sabdian HC, Fadarina Heru Santoso Hilwatullisan Indah Purnamasari Kalsum, Leila Khairunnisa, Annisa Septia Manggala, Agus Martha Aznury Miftahul Jannah Muhammad Yerizam Mujiyanti, Apri Mustain Zamhari Niawanti, Helda Ningrum, Galuh Martiyah Novariana, Mayra Oktarina, Ayu Pahlevi, Muhammad Agmerio Parega, Sultan Pramudya, Nabila Salwa Pratama, Yongki Rachmatika, Nisa Rahmaniar Rahmaniar, Rahmaniar Ramadhani, Dea Rizki Riansyah, Epan Riki Wahyudi, Riki Rima Melati Rusdianasari Rusdianasari Saputra, Mailanda Sardewi, Tri Sari, Della Yusfita Sari, Rahmaida Selastia Yuliati Setiawan, Farah Kania Sofiah Sofiah Sulistyawati, Novia Ayu Tamara, Ade Toluna, Yona Utami, Winda Andea Wahyu Wulandari Wijaya, Satria Agung Yerizam, M. Yuliani, Tasya Dwi Zaman, Muhammad Zulkarnain S.T.,M.T.