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All Journal Bulletin of Chemical Reaction Engineering & Catalysis Khazanah: Jurnal Mahasiswa Bulletin of Chemical Reaction Engineering & Catalysis
Galih Dwiki Ramanda
Chemistry Department, Universitas Islam Indonesia
Religion Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences

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PEMBUATAN KERTAS DARI LIMBAH POHON KETAPANG DENGAN METODE DELIGNIFIKASI Muhammad Arsyik Kurniawan; Galih Dwiki Ramanda; Tri Cantikasari; Shery Glennita Van Leun
Khazanah: Jurnal Mahasiswa Vol. 11 No. 1: Agustus 2019
Publisher : Universitas Islam Indonesia

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

Abstract

Penggunaan kertas di dunia saat ini telah mencapai angka yang sangat tinggi. Maka dapat diprediksikan bahwa akan terjadi eksploitasi hutan besar-besaran yang dapat terjadi terganggunya kestabilan Lingkungan perlu mendapat perhatian khusus. Tujuan penelitian ini adalah memanfaatkan kulit biji ketapang (Terminalia catappa L.) sebagai bahan baku pembuatan kertas.. Lignin merupakan jaringan polimer fenolik yang berfungsi merekatkan serat selulosa sehingga menjadi sangat kuat. Oleh karena itu lignin perlu dikurangi kadarnya dalam selulosa dengan proses delignifikasi. Penelitian ini menggunakan NaOH 1,5% dan 5% sebagai pelarut alkali dalam proses delignifikasi serat kulit biji buah ketapang. Metode ini dapat mengurangi kadar lignin dalam pulp ketapang, sehingga pulp yang diperoleh memiliki kadar selulosa yang jauh lebih besar daripada sebelumnya. Pengujian kualitatif dilakukan menggunakan FTIR pada serat ketapang tanpa perlakuan dengan perlakuan pemasakan I dan pemasakan II. Hasil uji FTIR menunjukkan serat ketapang didelignifikasi secara optimal dengan menyisakan sedikit kadar lignin yang ditunjukkan dengan peak gugus aromatik C=C pada rentang 1200-1300 cm-1 berkurang secara signifikan dan ditunjukkan dengan perubahan berat dari 71 g menjadi 23,54 g, kemudian perubahan tekstur menjadi lebih halus, dan perubahan warna menjadi cerah. Hal ini menandakan proses delignifikasi dapat digunakan untuk membantu pemisahan lignin dari serat selulosa ketapang.
Nickel/Biochar from Palm Leaves Waste as Selective Catalyst for Producing Green Diesel by Hydrodeoxygenation of Vegetable Oil Galih Dwiki Ramanda; Allwar Allwar; Muchammad Tamyiz; Is Fatimah; Ruey-an Doong
Bulletin of Chemical Reaction Engineering & Catalysis 2023: BCREC Volume 18 Issue 1 Year 2023 (April 2023)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.16403

Abstract

The objective of this research was to prepare low-cost catalyst for green diesel conversion from vegetable oil. The catalyst of nickel-dispersed biochar (Ni/BC) was prepared by direct pyrolysis of nickel precursor with palm leaves waste under N2 stream at 500 °C. The obtained catalyst was examined by using x-ray diffraction, scanning electron microscope-energy dispersive x-ray, transmission electron microscopy, gas sorption analysis, FTIR and surface acidity examination. The catalytic activity testing was performed on rice bran oil hydrodeoxygenation at varied temperature and time of reaction. Based on analyses, the results showed the successful preparation of Ni/BC with the characteristic of single nickel nanoparticles decorated on surface. The increasing specific surface area of material was conclusively remarked the surface area enhancement by nickel dispersion along with the increased surface acidity, suggesting that the material can be applied for acid catalysis applications. The Ni/BC exhibited excellent catalytic conversion of rice bran oil with the high selectivity toward diesel fraction with 85.3% yield and 92.6% selectivity. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 
Nickel/Biochar from Palm Leaves Waste as Selective Catalyst for Producing Green Diesel by Hydrodeoxygenation of Vegetable Oil Galih Dwiki Ramanda; Allwar Allwar; Muchammad Tamyiz; Is Fatimah; Ruey-an Doong
Bulletin of Chemical Reaction Engineering & Catalysis 2023: BCREC Volume 18 Issue 1 Year 2023 (April 2023)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.16403

Abstract

The objective of this research was to prepare low-cost catalyst for green diesel conversion from vegetable oil. The catalyst of nickel-dispersed biochar (Ni/BC) was prepared by direct pyrolysis of nickel precursor with palm leaves waste under N2 stream at 500 °C. The obtained catalyst was examined by using x-ray diffraction, scanning electron microscope-energy dispersive x-ray, transmission electron microscopy, gas sorption analysis, FTIR and surface acidity examination. The catalytic activity testing was performed on rice bran oil hydrodeoxygenation at varied temperature and time of reaction. Based on analyses, the results showed the successful preparation of Ni/BC with the characteristic of single nickel nanoparticles decorated on surface. The increasing specific surface area of material was conclusively remarked the surface area enhancement by nickel dispersion along with the increased surface acidity, suggesting that the material can be applied for acid catalysis applications. The Ni/BC exhibited excellent catalytic conversion of rice bran oil with the high selectivity toward diesel fraction with 85.3% yield and 92.6% selectivity. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 
Co-Authors Allwar Allwar Is Fatimah Muchammad Tamyiz Muhammad Arsyik Kurniawan Ruey-an Doong Shery Glennita Van Leun Tri Cantikasari