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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 Bulletin of Chemical Reaction Engineering & Catalysis 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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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 Mahfud Mahfud 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