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All Journal KOVALEN: Jurnal Riset Kimia Jurnal Geomine Sultra Journal of Mechanical Engineering (SJME) Sewagati
Bambang Sardi
Program Studi Teknik Geologi Universitas Tadulako
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Education Energy Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Journal : Jurnal Geomine

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Tinjauan Karakteristik Batubara Asal Sulawesi Tengah Dan Pengaruhnya Dalam Proses Konversi Menjadi Bahan Bakar Cair Muhammad Arif; Bambang Sardi; Dwiki Rivaldy
Jurnal Geomine Vol 7, No 2 (2019): Edisi Agustus 2019
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1632.129 KB) | DOI: 10.33536/jg.v7i2.364

Abstract

Karakteristik batubara seperti calorie value, proximate, ultimate, kandungan maseral dan mineral memiliki pengaruh yang cukup signifikan pada proses konversi batubara peringkat rendah menjadi bahan bakar cair. Tinjauan ini bertujuan untuk mengkaji karakteristik batubara asal Sulawesi Tengah yang terdiri dari kabupaten/kota seperti Donggala, Sigi, Morowali, Buol dan Banggai Kepulauan terhadap kinerja proses konversi menjadi bahan bakar cair melalui metode piolisis. Metodologi penelitian, yaitu melakukan review terhadap literatur yang relevan dengan karakteristik batubara asal Sulawesi Tengah dan pengaruhnya terhadap proses konversi menjadi bahan bakar cair. Berdasarkan karakteristik berupa calorie value, proximate, ultimate, kandungan maseral dan mineral dari batubara asal Kabupaten Banggai Kepulauan menunjukkan karakteristik sebagai batubara terbaik asal Sulawesi Tengah untuk dikonversi menjadi bahan bakar cair melalui metode pirolisis. Dengan, karakteristik batubara, yaitu: (1) calorie value berada pada interval 5.600-5.700 kkal/kg; (2) proximate, yaitu: moisture 4,77%; volatile matter 42,67%; fixed carbon 38,06%; ash content 12,45%; dan total sulfur 2,05%; (3) ultimate, yaitu: karbon 65,33%; hidrogen 4,55%; nitrogen 1,64%; sulfur 2,54%; dan oksigen 25,94%; (5) komposisi maseral dan mineral, yaitu vitrinit 86,85%; inertinit 0,45%; liptinit 1,45%; clay 7,90%; Fe Oksida  2,10%; dan pirit 1,25%.
Karakteristik Batubara Peringkat Rendah Formasi Bobong dan Implikasinya Terhadap Coal Liquefaction Supardin Nompo; Bambang Sardi; Muhammad Arif
Jurnal Geomine Vol 8, No 1 (2020): Edisi April 2020
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (660.417 KB) | DOI: 10.33536/jg.v8i1.545

Abstract

This research was conducted on the Bobong Formation coal in the form of geochemical analysis. The Bobong Formation is geologically located in the Banggai Sula Basin, Pulau Taliabu Regency, North Maluku Province. The study focused on low rank coal on the liquefaction process. Sampling locations are carried out in each coal outcrop near the river channel north of Taliabu Island. Sampling is done by the ply by ply method. Sampling is done at several points of observation in the form of a station. Coal sample analysis is carried out in the form of proximate and ultimate. The coal liquefaction experiment through the pyrolysis method with assisted microwave was carried out with raw material in the form of 300 g of 20 mesh coal, 3 g active carbon catalyst, temperature of 600 C, vacuum pressure (-3 mmHg) and 600 watt microwave power. These problems are focused on the influence of low rank coal geochemistry of the Bobong Formation in the Banggai Sula Basin on coal liquefaction and the behavior of coal liquefaction on changes in time variables. The physical and chemical characteristics of coal in coal content are ash (16.36%) adb, inherent humidity (8.19%) adb, volatile substances (22.21)%) adb and fixed carbon (48.60% ) adb, hydrogen (4.55% adb), oxygen (25.94% adb), carbon (65.33% adb), sulfur (2.54% adb) and nitrogen (1.64% adb). The optimal coal liquefaction yield with a reaction time of 60 minutes is 49%. The results of coal liquefaction did not change at the reaction time of 70 minutes and 80 minutes, respectively 49.01% and 49.02%. Coal with more lignite is more easily liquefied than sub-bituminous because coal has a higher hydroxyl group.
Co-Authors Afrilya, Anggie Putry Amiluddin, Muh. Rafiq Andi Saifah Andriani, Sitti Maghfirah Anti A Jakaria Asri Wulandari Auliandari Auliandari Azzahra, Fadlia Diva Avicenna Dwi Juli Puspitasari Dwiki Rivaldy Fidya Tri Wulandari Fitrawati A. Marhum Henry Runtunuwu Maharani Maharani Mahfud Mahfud Maulana, Asad Miswan Moh Ghifta Hentu Moh. Ripky Muhammad Arif Muhammad Arif Muhammad Arif Ni Ketut Sumarni Novika, Try Nur Airin Nur Anisa Karim Nurhaeni Nurhaeni Putri Hardiyanti Sari Zulhija Sudjaya Juraejo Suhaela Suhaela Supardin Nompo Supardin Nompo Thazkira Aulia Wahyu Hidayat Wahyu Hidayat Widya Ningrum Wulan Mutiara Sabani Yumiron Yumiron