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All Journal International Journal of Renewable Energy Development JURNAL KIMIA SAINS DAN APLIKASI Journal of Education and Learning (EduLearn) Abdimas Jurnal Inovasi Pendidikan Kimia Jurnal Penelitian Pendidikan Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Sainteknol : Jurnal Sains dan Teknologi Jurnal Karya Pendidikan Matematika Jurnal Daya Matematis Indonesian Journal of Chemical Science Indonesian Journal of Chemistry ABDIMAS SILIWANGI JISIP: Jurnal Ilmu Sosial dan Pendidikan Jurnal Pendidikan Jurnal Pengabdian Masyarakat Khatulistiwa Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Cokroaminoto Journal of Primary Education Jurnal Bina Desa Bookchapter Alam Universitas Negeri Semarang Bulletin of Chemical Reaction Engineering & Catalysis LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI International Journal of Active Learning Scientific Contributions Oil and Gas
Sri Kadarwati
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Religion Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Public Health Social Sciences Other

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Journal : International Journal of Renewable Energy Development

 1 
Characterization and Performance Test of Palm Oil Based Bio-Fuel Produced Via Ni/Zeolite-Catalyzed Cracking Process Kadarwati, Sri; Wahyuni, Sri
International Journal of Renewable Energy Development Vol 4, No 1 (2015): February 2015
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.4.1.32-38

Abstract

Catalytic cracking process of palm oil into bio-fuel using Ni/zeolite catalysts (2-10% wt. Ni) at various reaction temperatures (400-500oC) in a flow-fixed bed reactor system has been carried out. Palm oil was pre-treated to produce methyl ester of palm oil as feedstock in the catalytic cracking reactions. The Ni/zeolite catalysts were prepared by wetness impregnation method using Ni(NO3)2.6H2O as the precursor. The products were collected and analysed using GC, GC-MS, and calorimeter. The effects of process temperatures and Ni content in Ni/zeolite have been studied. The results showed that Ni-2/zeolite could give a yield of 99.0% at 500oC but only produced gasoline fraction of 18.35%. The physical properties of bio-fuel produced in this condition in terms of density, viscosity, flash point, and specific gravity were less than but similar to commercial fuel. The results of performance test in a 4-strike engine showed that the mixture of commercial gasoline (petrol) and bio-fuel with a ratio of 9:1 gave similar performance to fossil-based gasoline with much lower CO and O2 emissions and more efficient combustion
Esterification of Bio-Oil Produced from Sengon (Paraserianthes falcataria) Wood Using Indonesian Natural Zeolites Kadarwati, Sri; Apriliani, Evalisa; Annisa, Riska Nurfirda; Jumaeri, Jumaeri; Cahyono, Edy; Wahyuni, Sri
International Journal of Renewable Energy Development Vol 10, No 4 (2021): November 2021
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2021.35970

Abstract

The bio-oil produced from pyrolysis of woody biomass typically shows unfavourable characteristics such as high acidity, hence it becomes highly corrosive. An upgrading process, e.g., esterification, is necessary to improve the bio-oil quality prior to its use as a transportation fuel. In this work, the bio-oil was produced through a fast pyrolysis of Sengon wood in a fixed-bed pyrolyser at various temperatures. The characteristics (density, viscosity, total acid number, relative concentration of acetic acid, etc.) of the bio-oil were evaluated. The bio-oil with the highest acidity underwent an esterification catalysed by Indonesian natural zeolites at 70 oC for 0-180 min with a ratio of bio-oil to methanol of 1:3. The catalytic performance of the Indonesian natural zeolites during the esterification was investigated. A significant decrease in the total acid number in the bio-oil was observed, indicating the zeolite catalyst’s good performance. No significant coke formation (0.002-3.704 wt.%) was obtained during the esterification. An interesting phenomenon was observed; a significant decrease in the total acid number was found in the heating up of the bio-oil in the presence of the catalyst but in the absence of methanol. Possibly, other reactions catalysed by the Brønsted and Lewis acids at the zeolite catalyst surface also occurred during the esterification.
Co-Authors - Jumaeri A Tri Widodo A Tri Widodo Adinda Hapsari Aditia Nur Bakti Agung Feinnudin Amalina, Nur Dina Anggreani, Ina Annisa, Riska Nurfirda Aprillia Findayani Arma Yoga Astutik, Kasni Atika Wijaya Ayu Nugrahantia, Ayu Azzahra, Elvara Siti Azzahra, Yasmin Bahij, Aida Tika Biluthfil Bakti, Prayoga Bangun Yulianto Cepi Kurniawan Damayanti, Kristina Damayanti, Lutfia Damayanti, Yosephine Debbie Devitra Saka Rani Dewi, Silmi Dalila Millatina Dhian Ekowati Dian Sri Asmorowati Edi Prayitno, Edi Edy Cahyono Eko Budi Susatyo Elsa Ari Astuti Endang Susilaningsih Evalisa Apriliani, Evalisa Evita H. Legowo Fitri Rahmawati Fitri Rahmawati Harjito - Harjito Harjito Hidayah, Aida Nur Hutomo Wahyu Nugroho I Ketut Suada Imam Khabib Imam Kusmaryono Indriana Kartini Isti Hidayah Iswanto, Haifa Firyal Joseph P. Brinkman Junaid Sadrach Kartikasari, Reny Kasmadi Imam Supardi Kasmui -, Kasmui Khaerur Rifqi, Khaerur Khafidhotun Naimah Kolilah, Liluk Lailatul Badriyah Latifah Latifah LENI HERLINA Luluk Amnah Fitriyana, Luluk Amnah M Rafi Antoni M. Udiharto Malik, Septina Praditia Marcelino, Richie Mohammad Alauhdin, Mohammad Mubarak, Dinda Halimah Agrifani Muflikah, Binti Murbangun Nuswowati Nila Ubaidah Noegroho Hadi NOEGROHO HADI HS Noegroho Hadi HS. Nuhyal Ulya Nurhikmah Nurhikmah Nuril Huda Nurul Fadhilah Pertiwi Ayu Pamuji Kurniatun, Pertiwi Ayu Pamuji Pramestia, Rena Aliya Prima Astuti Handayani Puji Eka Rahayu Puji Eka Rahayu Putriana Dewi Rahayu, Sri Astusi Rani, Devitra Saka Rida Farida, Rida Risna Anggraeni Rohmah, Rojaa Maysa Rudiyanto, Aris Rudiyanto, Aris Sadrach, Junaid Saptorini Saptorini Saptorini Saptorini, Saptorini Siddiq Wahyu Hidayat Sigit Priatmoko Soeprodio Soeprodio, Soeprodio Soeprodjo Soeprodjo, Soeprodjo Sri Astusi Rahayu Sri Susilogati Sumarti Sri Wahyuni Sri Wahyuni Sri Wahyuni SRI WARDANI Subiyanto Hadi Saputro Sugihardjo Sugihardjo Sugihardjo Sugihardjo Sulistyaningsih, Nining Sulistyarini, Ika Teguh Budiyanto, Teguh Triyono Triyono Try Astuti Wandah Wibawanto Wara Dyah Pita Rengga Wega Trisunaryanti Witono Basuki, Witono Woro Sumarni Wuwus Ardiatna Zahro, Ainu Ilmiatuz