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All Journal Jurnal Rekayasa Proses Reaktor International Journal of Renewable Energy Development Jurnal Bahan Alam Terbarukan Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Prosiding Semnastek PROSIDING SEMINAR NASIONAL CENDEKIAWAN Jurnal Rekayasa Proses ASEAN Journal of Chemical Engineering Abdimas Singkerru Prosiding Seminar Nasional Hasil Penelitian Sains, Teknik dan Aplikasi Industri Fakultas Teknik Universitas Lampung Medic Nutricia : Jurnal Ilmu Kesehatan International Journal of Renewable Energy Development Jurnal Rekayasa Proses JURNAL REKAYASA KIMIA & LINGKUNGAN Jurnal Bahan Alam Terbarukan Nemui Nyimah
Heri Rustamaji
Teknik Kimia, Universitas Lampung
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Medicine & Pharmacology Neuroscience Nursing Public Health Social Sciences Veterinary Other

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Journal : Reaktor

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PREPARATION AND CHARACTERIZATION OF SULFATED ZIRCONIA FOR BIODIESEL PRODUCTION Heri Rustamaji; Hary Sulistyo; Arief Budiman
Reaktor Volume 13, Nomor 4, Desember 2011
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (467.338 KB) | DOI: 10.14710/reaktor.13.4.225-230

Abstract

Sulfated zirconia has been prepared and characterized by X-ray diffraction, infrared spectroscopy, BET surface area, and BJH pore distribution methods. XRD patterns reveal that the sulfated zirconia mainly consists of tetragonal crystalline zirconia with average size of about 9.8 nm. N2 adsorption data show that the nanosized sulfated zirconia has high surface area (109.4 m2/g) and shows the uniform pore distribution aggregated by zirconia nanoparticles. Sulfated zirconias were used as catalysts in the alcoholysis of jatropha oil. The conversions of jatropha oil alcoholysis under good conditions (120oC, 2 h, 3 wt% of catalyst and 1000 rpm agitation speed) were 79.65%.  Abstrak PREPARASI DAN KARAKTERISASI ZIRKONIA TERSULFATASI SEBAGAI KATALISATOR DALAM PEMBUATAN BIODIESEL. Zirkonia tersulfatasi berhasil dibuat dan dikarakterisasi dengan difraksi sinar X, spektroskopi inframerah, pengukuran luas permukaan dengan metode BET dan dan pengukuran distribusi pori dengan metode BJH. Pola difraksi sinar X menunjukkan bahwa susunan utama zirkonia tersulfatasi terdiri atas kristal zirkonia tetragonal dengan ukuran pori rata-rata sekitar 9,8 nm. Data adsorpsi N2 menunjukkan bahwa zirkonia tersulfatasi yang berukuran nano memiliki luas permukaan yang tinggi (109,4 m2/g) dan memiliki distribusi ukuran pori yang seragam. Zirkonia tersulfatasi digunakan sebagai katalisator dalam reaksi alkoholisis minyak jarak pagar dengan konversi pada kondisi yang relatif baik (120oC, 2 jam, 3% berat katalis dan kecepatan pengadukan 1000 rpm) sebesar 79,65%.
The Study of Hydrothermal Carbonization and Activation Factors' Effect on Mesoporous Activated Carbon Production From Sargassum sp. Using a Multilevel Factorial Design Prakoso, Tirto; Rustamaji, Heri; Yonathan, Daniel; Devianto, Hary; Widiatmoko, Pramujo; Rizkiana, Jenny; Guan, Guoqing
Reaktor Volume 22 No.2 August 2022
Publisher : Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.22.2.59-69

Abstract

Seaweeds are large-scale multicellular marine algae categorized based on color as Chlorophyceae, Rhodophyceae, and Phaeophyceae. No information has been provided on the conditions affecting the production of mesoporous activated carbon from one member of the described aquatic plants, namely Sargassum sp. Therefore, this study aimed to determine the impact of the main factors and their interactions on Sargassum sp.-derived activated carbon manufactured (SAC) by hydrothermal carbonization and CO2 activation methods. A mathematical approach was employed using a multilevel factorial design with the main factors being the activator type (ZnCl2, CaCl2, & KOH), hydrothermal temperature (200, 225, & 250oC), and activator ratios (2 & 4). Meanwhile, the response variables were yield and BET surface area (SBET) of SAC. Morphological, functional, crystallographic, and porosity characterization was carried out on the samples. The SAC-Ca-200-2 sample had the highest yield, with the value being 26.5 percent of weight. The activators having the highest specific surface area (SBET) were SAC-Zn-250-4, SAC-Ca-225-2, and SAC-K-250-2, with 1552, 1368, and 1799 m2/g, respectively. The pore size distribution in SAC products ranged from 2.16 to 10 nm in diameter. The analysis conducted indicated the activator type and interaction with its ratio substantially impacted the SAC yield value; besides, only the activator type affects the formation of high surface area pores.
Co-Authors Ade Okta Viani Agustian, Joni Ari Wibowo Arief Budiman Arief Budiman Aviati S., Yuniar Azhar Azhar Azhar Daniel Yonathan, Daniel Darmansyah DARMANSYAH . Devianto, Hary Dewi Agustina Iryani Dewi Agustina Iryani, Dewi Agustina Djana, Miftahul Djanna, M Donny Lesmana Erfani, S Erisha Putri Erlangga, Sona Febrianti, A Febriyanto, Pramahadi Ghea Maulidaco Anandati Ginting, Simparmin Boru Guan, Guoqing Guoqing Guan Hary Devianto Hary Devianto Hary Sulistyo Hary Sulistyo Hermida, Lilis Herry Wardono Herti Utami Herti Utami Hillary, S Indriyati Indriyati Isdiriayani Nurdin Jenny Rizkiana Joni Agustian Lilis Hermida Lismeri, Lia Listiani, Nita M. Haviz Martinus Miranda, Thalya Nandi Haerudin Nita Listiani Panca Nugrahini Febriningrum Pramujo Widiatmoko Pramujo Widiatmoko Pramujo Widiatmoko Putri, Erisha Rizkiana, Jenny Rustamaji, Galuh S Septi Qomah Simparmin br Ginting Solly Aryza Sri Ismiyati Damayanti Sumanjaya, Erlan - Thalya Miranda Tirto Prakoso Tirto Prakoso Tirto Prakoso Utami, Heri Vitri Dyah Herawati Widiatmoko, Pramujo Wijaya, Muhammad Niki Yuli Darni Yuli Darni Zulfa Fauziyyah