Abstract
This research Coal is one of the sedimentary fossil fuels that can ignite, is formed from organic sediment, and the remains of plants are then formed through the process of coalification. The main element consists of carbon, hydrogen, and oxygen. The formation of coal has certain conditions and only occurs in certain eras throughout geological history. The carbon age was approximately 340 million years ago. In the Permian Age or the Paleozoic era, 270 million also formed the most productive coal which is almost the entire coal deposit (black coal) in other parts of the earth. In this study we conducted at the Laboratory of PT. Bukit Asam tbk. Observation Results in the Study of Average Volatile Matter 19.11, Max Volatile Matter value 38.34, Min Vollatie Matter value 11.34. And the Average Calorie Result of 7578.5 Kacl / Kg, Max Calorie Value of 8046 Kcal / Kg. In this study, it was proved that coal samples were Anthracite types.
Highlights
This research Coal is one of the sedimentary fossil fuels that can ignite, is formed from organic sediment, and the remains of plants are formed through the process of coalification
The main element consists of carbon, hydrogen, and oxygen
It was proved that coal samples were Anthracite types
Summary
Batubara merupakan salah satu bahan bakar fosil sedimen yang dapat terbakar,terbentuk dari endapan organik, dan sisa-sisa tumbuhan kemudian terbentuk melalui proses pembatubaraan. Dan Hasil Kalori Rerata 7578.5 Kacl/Kg, Nilai Max Kalori 8046 Kcal/Kg.Pada penelitian ini membuktikan bahwa sampel batubara adalah jenis Antrasit penelitian ini sesuai dengan yang dilakukan oleh (Anisa, 2017) dan (Novrizqa, 2013) dapat dilihat pada Tabel 2. Purba Y.W.M, Karo-Karo P, Ginting E, 2020 Analisis Batubara Jenis Antrasit Di Ptba Berdasarkan Kandungan Volatile Matter dan Kalori , Journal of Energy Material and Instrumentation Technology, Vol 1 No 1, 2020. Dari grafik pada Gambar 2 memiliki kalori 7548 Kcal/Kg dengan kadar volatile Matter 1.34%, ini membuktikan bahwa semakin rendah kadar volatile matter maka nilai kalornya semakin tinggi, sedangkan nomor 23, memiliki kalor 7433 Kcal/Kg dengan kadar volatile matternya 35.56%, kondisi ini juga membenarkan teori semakin besar kadar volatile matternya maka akan semakin kecil nilai kalor pada batubara (Astuti et all, 2007). Namun terdapat juga data yang tidak sesuai dengan teori yang ada, ditunjukkan pada nomor 1, yang memiliki nilai volatile matter 37.67% dengan kalor 7124 Kcal/Kg, sedangkan pada sample no. 20, memiliki volatile matter 38.34% dengan nilai kalor 7045 Kcal/Kg sesuai dengan penelitian (Jati, 2009)
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