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All Journal Reaktor International Journal of Renewable Energy Development METANA Jurnal Teknik ITS IPTEK Journal of Proceedings Series BERKALA SAINSTEK Jurnal Teknik Kimia Seminar Nasional Teknik Kimia Kejuangan The Journal of Pure and Applied Chemistry Research Journal of Engineering and Technological Sciences Indonesian Journal of Chemistry Communications in Science and Technology Prosiding Seminar Nasional Sains dan Teknologi Terapan Sewagati Bulletin of Chemical Reaction Engineering & Catalysis
Achmad Roesyadi
Chemical Engineering Department, Industrial Technology Faculty, Sepuluh Nopember Institute
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Zn-Mo/HZSM-5 Catalyst for Gasoil Range Hydrocarbon Production by Catalytic Hydrocracking of Ceiba pentandra oil Yustia Wulandari Mirzayanti; Firman Kurniawansyah; Danawati Hari Prayitno; Achmad Roesyadi
Bulletin of Chemical Reaction Engineering & Catalysis 2018: BCREC Volume 13 Issue 1 Year 2018 (April 2018)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.13.1.1508.136-143

Abstract

Biofuel from vegetable oil becomes one of the most suitable and logical alternatives to replace fossil fuel. The research focused on various metal ratio Zinc/Molybdenum/HZSM-5 (Zn-Mo/HZSM-5) catalyst to produce liquid hydrocarbon via catalytic hydrocracking of Ceiba penandra oil. The catalytic hydrocracking process has been applied in this study to crack Ceiba pentandra oil into a gasoil range hydrocarbon using Zn-Mo/HZSM-5 as a catalyst. The effect of various reaction temperature on the catalytic hydrocracking of Ceiba pentandra oil were studied. The Zn-Mo/HZSM-5 catalyst with metal ratio was prepared by incipient wetness impregnation method. This process used slurry pressure batch reactor with a mechanical stirrer. A series of experiments were carried out in the temperature range from 300-400 oC for 2 h at pressure between 10-15 bar. The conversion and selectivity were estimated. The liquid hydrocarbon product were identified to gasoline, kerosene, and gas oil. The results show that the use of Zn-Mo/HZSM-5 can produce gas oil as the most component in the product. Overall, the highest conversion and selectivity of gas oil range hydrocarbon was obtained when the ZnMo/HZSM-5 metal ratio was Zn(2.86 wt.%)-Mo(5.32 wt.%)/HZSM-5 and the name is Zn-Mo/HZSM-5_102. The highest conversion was obtained at 63.31 % and n-paraffin (gas oil range) selectivity was obtained at 90.75 % at a temperature of 400 oC. Ceiba pentandra oil can be recommended as the source of inedible vegetable oil to produce gasoil as an environmentally friendly transportation fuel. 
Bio-kerosene and Bio-gasoil from Coconut Oils via Hydrocracking Process over Ni-Fe/HZSM-5 Catalyst Muhammad Al-Muttaqii; Firman Kurniawansyah; Danawati Hari Prajitno; Achmad Roesyadi
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 2 Year 2019 (August 2019)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.14.2.2669.309-319

Abstract

In this study, hydrocracking of coconut oil over Ni-Fe/HZSM-5 catalyst was carried out in a batch reactor under different reaction temperature. Coconut oil is proposed as one of the potential feedstock for biofuel production. The Ni-Fe/HZSM-5 catalyst was prepared by incipient wetness impregnation method. The characterization of Ni-Fe/HZSM-5 catalyst by X-Ray Diffraction (XRD), Scanning Electron Microscopy-Energy Dispersive X-ray (SEM-EDAX), and Brunauer-Emmett-Teller (BET). The chemical composition of biofuel was analyzed by Gas-Chromatography-Mass Spectrometry (GC-MS). The results from the GC-MS analysis showed that the hydrocracking reaction over 10 % (Ni-Fe)/HZSM-5 catalyst at temperature of 375 oC obtained the highest hydrocarbon content (contained 49.4% n-paraffin, 26.93 % isoparaffin, 3.58 % olefin) and the highest yield of bio-gasoil 38.6 % in the biofuel liquid hydrocarbon. Pentadecane (n-C15) and heptadecane (n-C17) were the most abundant hydrocarbon compounds in biofuel liquid hydrocarbon. Decarboxylation and/or decarbonylation was the dominant reaction pathways in this process. Based on the result, the reaction temperature had a significant effect on the distribution of biofuel composition and yield of biofuel from coconut oil.
Triglycerides Hydrocracking Reaction of Nyamplung Oil with Non-sulfided CoMo/γ-Al2O3 Catalysts Rismawati Rasyid; Rahmaniah Malik; Heri Septya Kusuma; Achmad Roesyadi; Mahfud Mahfud
Bulletin of Chemical Reaction Engineering & Catalysis 2018: BCREC Volume 13 Issue 2 Year 2018 (August 2018)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.13.2.734.196-203

Abstract

The purpose of this research are to study the temperature influence in hydrocracking process of the nyamplung oil (Calophyllum inophyllum) using a non-sulfided CoMo/γ-Al2O3 catalyst and to develop a simple kinetic model in interpreting the data of hydrocracking products. The experiment was carried out in a pressurized batch reactor operated pressure up 30 bar. The CoMo catalyst supported with γ-Al2O3 was prepared through impregnation method without sulfidation process. The operating temperature varied from 200 to 350 oC. The results show that the non-sulfided CoMo/γ-Al2O3 catalysts, nyamplung oil triglycerides can converted into gasoil and gasoline-like hydrocarbons. The triglyceride hydrocracking reaction of nyamplung oil followed a several stages, i.e., hydrogenation, dehydrogenation, and cracking. Based on the compounds contained in liquid product, hydrocracking reaction was dominated by decarboxylation. The products obtained in hydrocracking process of nyamplung oil are classified to gasoil (C11-C18) and gasoline (C5-C10).  The triglycerides hydrocracking reaction of nyamplung oil was assumed by following a series reaction mechanism and a simple kinetic model used for determined the kinetics constants. The highest reaction conversion is 99.10% obtained at temperature of 350 °C for 160 minutes reaction time. 
Kinerja Katalis Ni-Cu/HZSM-5 dalam Pembuatan Biogasoil dari Minyak Bintaro (Cerbera Manghas) dengan Proses Hydrocracking Aini, Afrida Nur; Al-Muttaqii, Muhammad; Roesyadi, Achmad; Kurniawansyah, Firman
BERKALA SAINSTEK Vol 8 No 3 (2020)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bst.v8i3.17937

Abstract

Catalytic cracking dan hydroprocessing merupakan dua proses yang digunakan untuk mengubah minyak nabati menjadi biofuel, gabungan dari kedua proses tersebut dinamakan reaksi hydrocracking. Minyak bintaro yang bersifat non-edibleoil serta memiliki kadar minyak cukup banyak yakni sebesar 35-50% dapat direkomendasikan sebagai salah satu sumber minyak nabati yang dapat diolah menjadi biogasoil. Penambahan logam nikel (Ni) dan tembaga (Cu) ialah untuk memperoleh yield yang lebih baik daripada menggunakan satu jenis katalis. Preparasi katalis dilakukan dengan menggunakan metode incipient wetness impregnation. Variabel loading support HZSM-5 yang digunakan sebesar 5% dan 10%, serta ratio logam Ni-Cu yaitu 1:1. Katalis Ni-Cu/HZSM-5 dianalisa menggunakan BET, EDX, dan XRD untuk mengetahui karakteristik katalis. Selanjutnya proses hydrocracking dilakukan dengan mencampurkan 2 gram katalis Ni- Cu/HZSM-5 dan 250 ml minyak bintaro ke dalam reaktor batch berpengaduk pada suhu reaksi 375 ̊C selama 2 jam. Produk cair (biofuel) yang dihasilkan dari proses hydrocracking dianalisa menggunakan GC-MS untuk mengetahui komposisi hidrokarbon. Rute reaksi yang mendominasi dalam penelitian ini ialah reaksi dekarbinolasi dan dekarboksilasi. Hal itu terlihat dari komposisi hidrokarbon terbanyak dari produk biogsoil yang dihasilkan ialah C15 dan C17. Hasil dari penelitian diperoleh Ni-Cu/HZSM-5 dengan loading 5% dan ratio logam 1:1 optimum digunakan pada proses hydrocracking minyak bintaro untuk menghasilkan biogasoil dengan yield sebesar 82,7%.
Temperature and Cr-Co ratio on Production of Diethyl Ether from Ethanol Dehydration using Cr-Co/γ-Al2O3 Catalyst Muna, Izza Aliyatul; Kurniawansyah, Firman; Mahfud, Mahfud; Roesyadi, Achmad
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 4 Year 2024 (December 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20237

Abstract

The running down of fossil fuels and rising environmental concerns, there is an increasing emphasis on identifying eco-friendly alternative energy sources. Diethyl ether (DEE) is considered one such additive fuel that can replace fossil fuels. In this study, DEE was synthesized through the reaction dehydration of ethanol using γ-alumina catalysts impregnated with chromium and cobalt. The dehydration of ethanol performed in a fixed bed reactor using Cr-Co/γ-Al2O3catalysts loading. The effect of metal ratio of Cr-Co was examined. Catalyst characterization was carried out using XRD, BET, and SEM-EDX analyses. The dehydration reaction was conducted in a fixed-bed reactor at temperatures 100 to 200 ºC, with nitrogen gas flowrates between 200 and 600 mL/min as the carrier gas. The findings revealed that the increase chromium contents, and the temperature were augmenting the diethyl ether yield. And the increase of nitrogen flow rate is slightly increasing the yield of DEE and conversion of ethanol. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Cobalt-nickel supported on desilicated HZSM-5 for the conversion of Reutealis trisperma (blanco) airy shaw oil to liquid hydrocarbon products Marlinda, Lenny; Rahmi; Aziz, Abdul; Roesyadi, Achmad; Hari Prajitno, Danawati; Mirzayanti, Yustia Wulandari; Al-Muttaqii, Muhammad
Communications in Science and Technology Vol 10 No 1 (2025)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.10.1.2025.1570

Abstract

Desilication/alkaline treatment and metal impregnation were used to create the HZSM-5 catalyst supported by Co-Ni. These catalysts' isotherm patterns combined type I and type IV isotherms. This isotherm pattern showed a hysteresis loop at comparatively higher pressures. The pore size distribution of the mesoporous HZSM-5 catalysts was situated between 6 and 12 nm in size. Its use in the hydrocracking of Reutealis trisperma (Blanco) airy shaw oil (RTO) to produce biofuel was investigated. The results of the catalytic test showed that the hydrocarbon makeup of the biofuel was comparable to that of fuel. In comparison to HZSM-5, the mesoporous Co-Ni/HZSM-5 catalyst enhanced n-paraffin by 46.32 area% and aromatic by 34.18 area% in the hydrocracking of RTO.
Penerapan Pangan Jajan Anak Sekolah (PJAS) pada SDN MOJO VI Surabaya dan Potensinya untuk dikembangkan menjadi ZONA Kuliner Halal Aman dan Sehat (KHAS) Kluster Pendidikan Tingkat Dasar Airlangga, Bramantyo; Rahmawati, Yeni; Juliastuti, Sri Rachmania; Darmawan, Raden; Machmudah, Siti; Aparamarta, Hakun Wirawasista; Roesyadi, Achmad; Sumarno, Sumarno; Rachmaniah, Orchidea
Sewagati Vol 9 No 4 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i4.2511

Abstract

Makanan sehat mendukung sistem kekebalan tubuh, menjaga tubuh tetap kuat dan siap melawan infeksi dan penyakit. Adanya penerapan program Pangan Jajan Anak Sekolah (PJAS) di SDN MOJO VI Surabaya secara tidak langsung meningkatan kesadaran siswa sekaligus orang tua siswa akan pentingnya memilih jajan anak yang aman dan sehat. Hal ini tidak hanya bermanfaat bagi siswa di sekolah, namun dalam jangka panjang akan mempengaruhi kebiasaan makan keluarga. Penerapan PJAS pada kios-kios kantin sekolah merupakan langkah awal penerapan Sistem Jaminan Halal (SJH); mengingat kriteria PJAS yang sesuai adalah aman dan bermutu selain bergizi. Sehingga PJAS yang aman dan bermutu selangkah menuju PJAS halal. Pemberian pendampingan gratis untuk pengajuan sertifikasi halal dilakukan kepada setiap kios di SDN MOJO VI Surabaya: kantin Melati, Kenanga, Anggrek, dan Mawar. Kegiatan ini membawa keberhasilan bagi SDN Mojo VI Surabaya dalam meraih juara 1 Nasional dalam kategori PJAS. Penerapan PJAS sekaligus sertifikasi halal disetiap kios kantin di SDN Mojo sangat berpotensi untuk ditingkatkan menjadi Zona KHAS. Sehingga pihak pengelola Kantin SDN MOJO VI Surabaya tidak hanya menjamin kehalalan makanan tetapi juga menjamin kebersihan dan kesehatan jajan siswanya secara keseluruhan.
Co-Authors . Widayat A.A. Ketut Agung Cahyawan W Abdul Aziz Adrianto Prihartantyo Agus Budianto Aini, Afrida Nur Aini, Apsari Puspita Airlangga, Bramantyo Al-Muttaqii, Muhammad Ali Altway Anindita Pramesti Putri Nugroho Aparamarta, Hakun Wirawasista Arief Budiman Aushaf, Faishal Danawati Hari Prajitno Darmawan, Raden Delfimelinda Nurul Riyadi Desty Rusdiana Sari Devi, Fatma Putrinta Devita Dian.L Dini Fathmawati Dwi Fitriyanto Fatma Putrinta Devi Fika Anjana Fika Anjana Firman Kurniawansyah Firman Kurniawansyah H Hadiyanto H M Rachimoellah H Satriadi Hafshah Hafshah Hafshah Hafshah Hari Prajitno, Danawati Himawan TBM Petrus Himawan Tri Bayu Murti Petrus Ignatius Gunardi Izza Aliyatul Muna, Izza Aliyatul Jimmy Jimmy Kurniawansyah, Firman Kurniawansyah, Firman Kusno Budhikarjono Kusno Budikarjono Kusno Budikarjono Kusno Budikarjono Kusno Budikarjono Kusuma, Heri Septya Lailatul Qadariyah Lenny Marlinda M. Renardo Prathama Abidin M. Yogi Riyantama Isjoni Mahfud Mahfud Mahfud Mahfud Mahfud Mahfud Marbun, Maja Pranata Mitsuru Sasaki Motonobu Goto Motonobu Goto Muhammad Al Muttaqii Muhammad Al Muttaqii Muhammad Al-Muttaqii Muhammad Al-Muttaqii Muhammad Al-Muttaqii Muhammad Al-Muttaqii Muhammad Rachimoellah Niar Kurnia Julianti Nurjannah Nurjannah Nurjannah Nurjannah Nurkhamidah, Siti Nyoman Puspa Asri Oktarinda Damayanti Pamungkas, Gagas Rachmaniah, Orchidea Rahmaniah Malik Rahmaniah Malik Rahmi Ratna Ediati Renanto Handogo Ricco Aditya S. W Rismawati Rasyid Riyadi, Delfimelinda Nurul Riza Alviany S. Suprapto Santi Dyah Savitri Semuel Pati Senda Semuel Pati Senda Silvy Eka Andansari Siti Machmudah Siti Machmudah Siti Machmudah Siti Machmudah Siti Zullaikah Sri Rachmania Juliastuti, Sri Rachmania Sumarno . Suprapto Suprapto Tantri Kusuma Wardani Tantular Nurtono W. Wahyudiono Wahono Sumaryono Wahyudiono Wahyudiono Widi Astuti Widi Astuti Widiyastuti Widya Rosa Oktaviani Winardi, Sugeng Yazid Bindar Yazid Bindar Yeni Rahmawati, Yeni Yuanita Gustanti Yustia Wulandari Mirzayanti Zulnazri, Z