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All Journal International Journal of Advances in Applied Sciences Jurnal Bahan Alam Terbarukan CHEMICA Jurnal Teknik Kimia Jurnal Matematika & Sains Eksergi: Chemical Engineering Journal Bulletin of Chemical Reaction Engineering & Catalysis GRADIEN Elkawnie Agroindustrial Technology Journal Jurnal Abdi Insani Indonesia Berdaya Journal of Agri-Food Science and Technology (JAFoST) Abdimas Indonesian Journal Open Science and Technology Pelita: Jurnal Pengabdian kepada Masyarakat Indonesian Journal of Chemical Engineering Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Abdimas
Totok Eka Suharto
Department Of Chemical Engineering, Faculty Of Industrial Technology, Universitas Ahmad Dahlan, Kampus 4, Jl. Ringroad Selatan, Kragilan, Yogyakarta
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Journal : Agroindustrial Technology Journal

 1 
HIDROGENASI MINYAK KEDELAI DENGAN VARIASI MASSA KATALIS PALLADIUM Adi Permadi; Totok Eka Suharto
Agroindustrial Technology Journal Vol. 7 No. 1 (2023): "Special issue Seminar Nasional Sains dan Teknologi (SNST) 2022"
Publisher : Universitas Darussalam Gontor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/atj.v7i1.9450

Abstract

Soybean oil, also known as vegetable oil, consists of triglycerides such as saturated and unsaturated fatty acids. However, this soybean oil has low oxidative stability when stored at room temperature and used at high temperatures. Hydrogenation is carried out to obtain oxidation stability and will reduce double bonds including trans fatty acids. The use of palladium catalyst is the most potential in the hydrogenation process. This research was conducted in two conditions, experiment 1 and experiment 2. With temperature conditions of 75oC, pressure of 1 atm, using a reactor equipped with a stirrer at a speed of 450-520 rpm. In experiment 1, the palladium catalyst was not activated and hydrogen gas entered through the bottom of the reactor. In experiment 2, the palladium catalyst was activated with NaOH while hydrogen gas entered through the side of the reactor. Iodine number analysis method used is the Wijs method. The results of experiment 1, so that the value of the iodine number can be below 100 gr I2/gr of oil, while in the results of experiment 2, the value of the lowest iodine number is at a value of 110 gr I2/g of oil. The main influencing factors in our research a hydrogen gas turbulence, palladium catalyst activation and stirring.
PENGARUH PRETREATMENT BAHAN KIMA DAN BIOLOGI TERHADAP AKUMULASI VOLUME BIOGAS DARI LIMBAH MAKANAN Adi Permadi; Totok Eka Suharto
Agroindustrial Technology Journal Vol. 7 No. 1 (2023): "Special issue Seminar Nasional Sains dan Teknologi (SNST) 2022"
Publisher : Universitas Darussalam Gontor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/atj.v7i1.9453

Abstract

In daily activities can produce garbage commonly called household waste. Food waste is included in household waste that has an impact on the environment. Household food waste has the potential to release methane gas into the environment causing damage to the earth's ozone layer because it includes greenhouse gases that can cause climate change. The increasing impact of food waste requires serious efforts to deal with the processing of household food waste. One of the efforts to overcome this is to mix household waste with cow dung to make biogas. In addition, it is also an effort to reduce fossil energy sources with renewable energy sources from biogas. This study aims to knowing the influence of chemical pretreatment (Ethanol, NaoH, and HCl) and Biology (EM-4 enzyme) at concentrations of 8%, 10% and 12% on the accumulation of biogas from food waste (rice and vegetables) produced for 30 days. While the pre-treatment results using chemicals (ethanol, HCl and NaOH) and biological materials (EM-4 enzymes) at concentrations of 8%, 10% and 12% provide a larger volume of biogas accumulation for 30 days, compared to raw materials. biogas that does not get pre-treatment. From this study, the pretreatment of biogas raw materials using 10% NaOH provided the highest accumulation of biogas volume (70 ml) in 30 days compared to other pretreatments.
Co-Authors Abdul Aziz Adi Permadi Adi Permadi, Adi Agung Kurniawan Agus Sudaryono Arwini, Arwini Aska, Ghoniyun Nisa Uskhulil Baswara, Ahmad Raditya Cahya Chasanah, Alfi Cindy Wulandari Deslaely Putranti Devi Ratnawati Dewi, Kartika Tunggal Dimas, Doni Dwita Oktiarni Erna Astuti Fethi Kooli Firdaus, Stradivary Maulida Gulo, Herbert Alessandro Panias Hadi, Mulyono Halimathusyakhdyah, Halimathusyakhdyah Hanin, Nabila Hapsari, Intan Tri Hayuningtyas, Ratih Hendry Pangestu Hidayah, Laelatul Ibdal Satar Ibdal, Ibdal Irfan Gustian Is Fatimah Joko Pitoyo Joko Pitoyo Lupi, Ahmad M. Idris Maema, Nadin Okta Martomo Setyawan Maryudi Maryudi Mufti Khakim, Mufti Mulyono, Sekar Larasati Munawaroh, Annisa Luthfiana Nafi’, Zahrotun Nazzal, Sami Nur Halimah Pariz, Ananda Rizky Al Pawenang, Denta Kesdik Pelupessy, Safriyati Pratiwi, Margaretha Herlin Putri, Mutiara Wilson Rahman, Zulfan Hanif Rahmawan, Jihad Rahmawati, Daniar Ramadani, Noorpani Safitri, Harminah Saputri, Rully Indah Satar, Ibdal Setyanto, Barry Nur Sheikh Ahmad Izaddin Sheikh Mohd Ghazali Siti Jamilatun Siti Salamah Subrata, Arsyad Cahya Sudarmini Sudarmini, Sudarmini Sumardani, Wahyu Bintoro Suyitno Suyitno Syamsuddin, Arief Tole Sutikno Trianik Widyaningrum Wahyu Dewi Hapsari Wahyuni, Denik Putri Wardana, Mikael Dia Winarni Winarni Wulandari, Erika Zahrul Mufrodi, Zahrul