Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Communications in Science and Technology Kimia Padjadjaran
Winoto, Haryo Pandu
Center For Catalysis And Reaction Engineering (CaRE), Directorate Of Research And Innovation Institut Teknologi Bandung, 40132, Indonesia; Chemical Engineering Department, Institut Teknologi Bandung, 40132, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Engineering Environmental Science Materials Science & Nanotechnology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pengembangan Katalis dan Teknologi Produksi BioBTX dari Tandan Kosong Sawit Semeru, Husain Akbar; Subagjo, Subagjo; Rizkiana, Jenny; Winoto, Haryo Pandu; Rasrendra, Carolus Barromeus; Nurrusyda, Fajriana Shafira
Kimia Padjadjaran Vol 1, No 2 (2023)
Publisher : Kimia Padjadjaran

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

Abstract

Produksi BioBTX (Benzena, Toluena dan Xilena) dari Tandan Kosong Sawit menjadi suatu alternatif menarik dalam produksi bahan kimia berbasis biomassa. Pengaruh katalis dan sumber hidrogen dalam produksi BioBTX telah dipelajari dengan menggunakan reaktor hidrotermal. Dalam penelitian ini digunakan katalis bimetal Nikel-Molibdenum dengan penyangga H-Al-β sebagai asam Brønsted dan Sn-β sebagai asam Lewis dimana asam format dalam etanol (FA-EtOH) dan isopropil alkohol (IPA) digunakan sebagai agen transfer hidrogen. Percobaan dilakukan pada temperatur 300oC selama 1 jam untuk setiap percobaan sumber hidrogen dan katalis. Temperatur reaksi divariasikan pada 225oC, 255oC dan 300oC dengan variasi waktu reaksi 1 dan 2 jam. Berdasarkan hasil percobaan, sistem FA-EtOH memiliki keunggulan dibandingkan sistem IPA yaitu selektifitas eterifikasi pelarut yang lebih rendah baik pada katalis NiMo/H-Al-β dan NiMo/Sn-β. Dari segi katalis, katalis NiMo/H-Al-β memiliki kinerja yang lebih baik dibandingkan NiMo/Sn-β baik pada sistem FA-EtOH maupun sistem IPA. Konversi NiMo/H-Al-β tertinggi didapatkan pada sistem IPA sebesar 51,08% dan pada sistem FA-EtOH sebesar 48,66%. Namun pada sistem IPA reaksi cenderung ke arah alkilasi-C cincin aromatik sehingga secara sebaran produk sistem FA-EtOH lebih baik. Adapun pengujian pengaruh temperatur yang dilakukan menggunakan sistem FA-EtOH dengan katalis NiMo/H-Al-β menunjukan penurunan konversi guaiacol dari 48,66% pada 300oC menjadi 24,64% pada 255oC. Adapun pada suhu 225oC, tidak terjadi reaksi pada guaiacol. Toluena terdeteksi pada kondisi operasi 255oC selama 2 jam pada sistem FA-EtOH berkatalis NiMo/H-Al-β.
Palm oil biofuels demystification: The needs of standardized life cycle assessments and source derivatization Melia Laniwati; Tirto Prakoso; Jenny Rizkiana; Anita Kusumawardhani; Haryo Pandu Winoto
Communications in Science and Technology Vol 11 No 1 (2026)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.11.1.2026.1859

Abstract

The implementation of binary renewable-versus-fossil policy frameworks has the effect of obscuring the environmental costs and overstating the sustainability of palm oil biofuel. This review examines life cycle assessment (LCA) studies and regulatory frameworks, demonstrating that land-use change (LUC) is the predominant source of greenhouse gas and deforestation poses a threat to over 80% of species in production regions. Inconsistent system boundaries have been found to hinder comparability, with certification schemes including RSPO, ISPO, and EU RED II frequently overlooking LUC data, thus perpetuating unsustainable plantation strategies. As one of the most imminent solutions, used cooking oil (UCO) appears as a viable alternative, exhibiting a carbon intensity that is more than 60 % lower than that of conventional jet fuel and potentially resulting in a reduced depletion of fossil resources. However, only approximately 20% of global domestic UCO is recycled and 85% of regions lack UCO-specific legislation. A three-pillar framework is proposed: harmonized LCA with mandatory LUC accounting, scaled UCO valorization, and biodiversity-friendly practices including agroforestry and castor cultivation on degraded lands. It is reported that these measures can reduce emissions by 67.2% without compromising land integrity or food security. The notion of directly comparing the non-use of palm oil with the complete disregard for its unsustainability may be alleviated in the future by regarding some of the aspects proposed in this study.
Co-Authors Anita Kusumawardhani Melia Laniwati Nurrusyda, Fajriana Shafira Rasrendra, Carolus Barromeus Rizkiana, Jenny Semeru, Husain Akbar Subagjo Subagjo Tirto Prakoso