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Journal : Journal of Bioprocess Chemical and Environmental Engineering Science

Sintesis dan Karakterisasi Katalis Nikel Zeolit Alam Ni/NZA Bahri, Syaiful; Saputra, Edy; Herman, Syamsu; Muhdarina, Muhdarina
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 5 No 1 (2024): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.5.1.36-45

Abstract

Research has been conducted to manufacture Ni/NZA for catalytic cracking of empty palm fruit bunches into liquid fuel. The study aims to investigate the impact of metal impregnation and calcination time variations on catalyst crystallinity and morphology. The catalyst is produced in multiple stages, including NZ activation using acid, followed by metal impregnation at 0%, 1%, 3%, and 5% w/w, and calcination at 500oC for 2, 4, and 6 hours, respectively. It is then oxidized at 400oC for 2 hours and reduced at 400oC for 2 hours. The catalyst's crystallinity, morphology, and metal distribution are determined through X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) analysis. The catalyst with the best crystallinity and metal distribution is found to have 3% metal loading and a calcination time of 2 hours.
Tinjauan Pengaruh Suhu dan Massa Katalis Terhadap Yield Bio-Oil Hasil Pirolisis Ampas Tebu (Sugarcane Bagasse) Oktaviani, Oktaviani; Bahri, Syaiful; Sunarno, Sunarno
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 6 No 2 (2025): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.6.2.100-109

Abstract

Sugarcane bagasse, as lignocellulosic biomass waste, has great potential for producing bio-oil through pyrolysis, which is the process of converting biomass into bio-oil, biochar, and gas. However, the main challenge in bio-oil production is reducing oxygen content and improving its quality. Therefore, this study evaluates the effect of temperature and catalyst use on bio-oil yield from sugarcane bagasse pyrolysis. The method used was a literature review, collecting quantitative data from various relevant studies on sugarcane bagasse pyrolysis and its operational conditions. The results showed that a temperature of 500°C yielded the optimal bio-oil yield of 60.4%, with higher temperatures increasing calorific value but reducing oxygen content. Additionally, the use of a catalyst can reduce oxygen content and improve bio-oil quality. In conclusion, temperature and the selection of the appropriate catalyst play a key role in improving the quality and efficiency of bio-oil production from sugarcane bagasse, which can support efforts toward transitioning to more sustainable energy sources.
Optimasi Bio-char Hasil Proses Katalitik Pirolisis Palm Kernel Expeller (PKE) Menggunakan Katalis NiMo/NZA dengan Pendekatan RSM Sihotang, Fernando; Bahri, Syaiful; Saputra, Edy
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 6 No 2 (2025): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.6.2.110-121

Abstract

The increasing demand for renewable energy sources has driven interest in biomass-based alternatives, particularly bio-char derived from palm kernel expeller (PKE), an abundant by-product of Indonesia’s palm oil industry. This study aims to optimize bio-char production through catalytic pyrolysis of PKE using a NiMo/NZA catalyst, employing a Response Surface Methodology (RSM) with a Box-Behnken design. Key variables investigated include T (°C) (400–500 °C), catalyst loading (2–6%), and metal loading (0–4% wt). The NiMo/NZA catalyst was synthesized through acid activation, metal impregnation, and thermal treatment, and its structure was confirmed using FTIR analysis. Pyrolysis experiments were conducted in a fixed-bed reactor under nitrogen and hydrogen atmospheres. The highest bio-char yield of 39.38% was obtained at 400 °C with 2% catalyst and 4% metal loading. Optimization modeling using Minitab v.22 indicated that the optimal conditions were at 400 °C, 6% catalyst, and 2.91% metal loading, resulting in a predicted yield of 36.82% with a desirability of 0.979. Statistical analysis showed a significant influence of catalyst and metal loading over temperature on bio-char yield (p-value < 0.05; Adjusted R² = 0.9236). These results support the potential of catalytic pyrolysis with tailored catalysts to enhance bio-char production from palm biomass, contributing to waste valorization and renewable fuel development.
Optimasi Proses pirolisis dari Kulit Kayu Akasia Crassicarpa Menjadi Bio-Char menggunakan Metode Respon Surface Methodologi Central Composite Design Darmiyati, Siti; Bahri, Syaiful; Sunarno, Sunarno
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 6 No 2 (2025): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.6.2.122-131

Abstract

The problem of fossil energy crisis and the increasing carbon emissions have encouraged the search for environmentally friendly alternative energy sources, one of which is through the utilization of biomass into solid fuels such as bio-char. This study aims to optimize the pyrolysis process conditions to produce high-quality bio-char from Acacia crassicarpa bark, a lignocellulosic waste from the forestry industry. The pyrolysis process was carried out in a batch reactor with variations in temperature (400–500°C), residence time (30–60 minutes), and NiMo/NZA catalyst concentration (2–6%) as independent variables. Optimization was carried out using the Response Surface Methodology approach with a Central Composite Design experimental design to obtain the optimum conditions. The results showed that the optimum conditions were obtained at a pyrolysis temperature of 400°C, residence time of 30 minutes, and catalyst concentration of 2%, resulting in a bio-char yield of 33.8% with a desirability value of 0.876. Meanwhile, the highest calorific value of 28 MJ/kg was achieved at the same temperature with a residence time of 90 minutes. This value exceeds the minimum standard for solid fuels according to the International Biochar Initiative and the European Biochar Certificate, which are generally in the range of >20–25 MJ/kg. Thus, the resulting bio-char not only has potential as an alternative energy source but also meets quality standards as an efficient and sustainable solid fuel.
Co-Authors ', B. Isyandi ' -, Sunarno Abd. Mukti, Abd. Abd. Rasyid Syamsuri Abid, Hussein Rasool Abu Bakar Adam Fadillah Ade Evi Fatimah Ade Wachjar Adelina Samosir Adim, Moh Adita Sukma Ramadhania Afina, Zahira Afria Anggreini Afrielyanda H Agung Abadi Kiswandono Agus Faisal Asyha Ahmad Fadli Ahmad Fuad Ahmadi, Peni Ainol Yaqin, Ainol Ajmal, Muhammad Alhajj, Irfan Qowwiyul Aziz Alhamid, Ipa Fatma Almasdi Syahza Altarawneh, Mohammednoor Aman aman Ambarwati, Yuli Amilia Linggawati Amini Amini Amiruddin Amiruddin Amun Amri Andari , AA Andhulangi, Ganjar Andi Mulya Adha Andi Setiawan ANDI WIJAYA Anggraini, Silvi Puteri Anggreini, Winsa Septi Anhar Anhar Anisa, Lia Rizqi Nur Anna Apryana ANNISA DWI KURNIAWATI Annisa, Devi Nur Annisa, Eka Dini Antania, Livia Anwar Sumianto Aprilia, Tika Dwi Aprolita Aprolita Arai, Masayoshi Arbhy Indera Ikhwansyah Ari Aditia Sukma Ari Sandhyavitri Aria Gusti Ariasih, Rr. Arum Aries Saifudin Arinda, Shafira Aprilla Aritonang, Muhibbah Asad, Muhammad Mujtaba Asman, Pendi Aspita Laila Astuti, Yeni Puji Aulia Rahman Aura Dhayang Fiarizky Ayumi, Eksa Azhar, Muhammad Rizwan Aziz, Melly Pusvita Azmi, Shabana Baharudin Baharudin Baryanto Berghuis, Nila Tanyela Bernard Isyandi Brilliant Asmit Budiyanto Budiyanto Bunga Fitriani Gumadita Bustamam, Nurbaity Chairul Chairul Chairul Chairul Chartady, Rachmad Damanik, Khairunnisa Dani Ali, Nurhalim Darmiyati, Siti Daud, Attaillah Dedi Afandi Dedy Hidayatullah Alarifin, Dedy Hidayatullah Desak Made Yoniartini Desi Heltina Dhani Nur Miftahudin Dian Agustin Dio, Regina Gita Riani Djaimi Bakce Donathus Sutidjo Dwi sani, Pebi Dzaljad, Rifma Ghulam Edwidya Ocktaviani Armay Edy Saputra Effendi, Mardian Effendy, Sjahril Ekadian Lestari Simatupang Eko Prihandono Eko Risdianto Ella Awaltanova Elvi Yenie, Elvi Elvianto Dwi Daryono Emi Tipuk Lestari *, Emi Tipuk Lestari Endah Lestari, Martanti Erlisa Yanuari Putri Ermiyati Erniwati Erniwati Ety Apriliana Fabryza, Dhina Fachry Abda El Rahman Fadillah, Ryan Faizal, Doddy Fajar Restuhadi Fathiyah Zulfahni Febrian, Ramadhoni Feby Pratama Nugraha Feni Nopriza Fiarizky, Aura Dhayang Figna, Harry Pratama Fikri, Muhammad Fathan Fiqna, Harry Pratama Firman syah Firmansyah, Muhammad Yusuf Fistiyanti, Davinta Fitra Marsela Fitri Susanti Fitri, Gustina Fitriady , Gema Fitriani Fitriani Fitriani, Nurdiana Friska Octavia Rosa, Friska Octavia Ganjar Andhulangi Genardus Oktavri Sijabat Habibie, R. Fikry Nanda Hade Karimata Hadyan Sartoni Hafidz Nifa, Muhamad Hajar, Muhammad Nurul Hambali, Ach Hamdali, Hamdali Hammad, Hammad Harahap, Ahmad Indra Harahap, Dosma Gabena Hardiansyah Hardiyanto, Candra Hari Setiono, Hari Hartono, Arif Hartono, Arif Haryo Satriya Oktaviano HASANAH, IDA FADIRATUL Hasnul Bustaman Hasrudy Tanjung, Hasrudy Hedri Yanti Hermanto Hery Widijanto Hesty Rodlotu Yula Hetti Zuliani, Hetti Husna, Zakiyatul Hutahaean, Agung Mangalambok I KADEK ADHI DWIPAYANA . I Nengah Suandi I Wayan Suastra Ibnu Oktariza Ibrahim, Tanimu Adam Ida Bagus Putrayasa Ida Bagus Putu Arnyana Idi Warsah Idral Amri Idris Sardi Idris, Iswadi Ilim, Ilim Ilmi, Assyifa Aini Ilmiddaviq, M. Bahril Indri Windarti Inget Yester Yunanda Irawan, Nopi Irdoni Irdoni Irlani, Intan Irnaliah, Irnaliah Irwan Fathurrochman, Irwan Irwan Irwan Irwanto Irwanto Isma Swadjaja Isnaini, Nurdiana Fitri Iswadi Idris Iwan Fajri James Becker Janar Wulan, Anggraini Jefriadi Jefriadi Jiang, Zhong Tao John Hendri Juandi Juandi Julian, Risma Juliasih, Ni Luh G. R. Juliasih, Ni Luh Gede Ratna Julizar, Deni Jumira Warlizasusi Jumnahdi, Muhammad Kami, Kanisius Karim, Ahmad Fauzun Karina Octaria Putri Keisya, Nurul Khairat Khairat Khairat, Khairat Khairul, Anapuja Khairunnisa, Zhafira Amriyatti Kharismatunnisaa, Fiona Khoiriyah, Alfiatul Kholil, Moh. Khotibul Umam Kinanti Kinanti, Kinanti Kiswandono, Agung A. Kuswanto Kuswanto Laila Kusmiati Lailatul Qomariyah, Lailatul Lalu Erwan Husnan, Lalu Erwan Larasaty, Anisya Lestari, Miranti Tri Lianingsih, Firli Dwi Lisna Efiyanti Lubis, Afandi Husin Amin Syahrul Lutfiah, Rosyidatul Lysbetti Marpaung, Noveri M Arfi Adharyandy Firman M. Nasor, M. M. Ridwan M. Ridwan, M. Ridwan Maimun Maimun Makkah Ramadhan Putra Rizal Margrety, Betty Margunaji, Agus Maya Sista, Eliya Medriati, Rosane Meliagustin, Adilla Mhd. Reza Pahlepi Miftahudin, Dhani Nur Miftahudin, Dhani Nur Miran, Hussein A. Miswaty, Miswaty Mita Rilyanti Mita Rilyanti Mitri Irianti Mizna Sabilla Moh. Ramin Mohammad Habib Ramdhani Mohammad Muhibbin Muhammad Amin Muhammad Azlin , Dico Muhammad Disro Muhammad Imam Nugraha Muhammad Isa Alamsyahbana Muhammad Ismet muhammad rizky, muhammad Muhammad Sulthon Siregar Muhammad Zulfikar Adha Muhdarina Muhdarina . Muhdarina Muhdarina Muhtadi Muhtadi MUIS FAUZI RAMBE Mujiono Mujiono Mujtahidah, Hidayatul Mukti, Lailatul Latifa Mulyadi Mulyadi Mulyono Mulyono MURNI YANTO Musbar, Al Swendo Nabila, Abelia Najmuddin MA, Najmuddin nasir, muh Nasution, Jamilah Aini Nia Meisa Wulandari Nifa Abdillah, Muhamad Hafidz Norlena Notiragayu, Notiragayu Nova Dwi Safitir Noviani, Julia Nur Ainiyah Nurbaity, Nurbaity Nurfaradina, Zaskia Ayu Nurfatihayati Nurhaeni Nurhaeni Nurhasanah Nurhasanah Nurhasanah Nurhasanah Nurhayati Nurhayati Nurhayati, Nurhayati Nurkholimah, Siti Nurlis Nurlis Nurmarita, Nurmarita Nurrochmah , Siti Nurwijayanti Oci Khairani Oktarina, Rasmi Zakiah Oktaviani oktaviani Oktaviyana, Amiliya Pambudi, Naufal Parulian, Rachmat RM Pratiwi, Dinar Putri Prawiranegara, Barata Aditya Prayoga, Mohammad Dicky Puji Prasetyo, Angga Puji, Lela Kania Rahsa Purba, Doni El Rezen Purwadi, Ofik Taupik Putri Azizah Putri, Erlisa Yanuari Putri, Karina Octaria Putri, Karina Octaria Putri, Nazla Syafrina Qudus, Hardoko Insan R. 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