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Abstrak (Bhs. Indonesia)

Penelitian yang berlokasi di daerah Tanjung Agung, Kecamatan Tanjung Agung, Kabupaten Muara Enim, Sumatera Selatan memiliki keunikan geologi dari segi sumber daya alam. Sumber daya alam yang terdapat di daerah penelitian berupa batubara. Batubara tersebut terbentuk pada Formasi Muara Enim. Di daerah penelitian dilakukan analisis proksimat untuk menentukan kualitas batubara menurut Classification of Inseam Coal (UN-ECE, 1998). Hasil analisis berturut-turut terhadap dua sampel batubara A2 dan C di laboratorium yaitu analisis proksimat dengan nilai untuk moisture in air dried 14,8% dan 16,7%, Ash Content 4,6% dan 3,7%, Volatile Matter 40,7% dan 39,7%, Fixed Carbon 39,9% dan 39,9%, Total Sulfur 0,15% dan 0,37% dalam air dried basis (adb). Selain itu untuk nilai kalor berturut-turut 5446 dan 5324 kal/gram dalam basis air dried basis (adb). Nilai kalor dikonversi ke dalam basis daf secara berturut-turut bernilai 28,5 Mj/Kg dan 28,3 Mj/Kg (daf). Dari hasil tersebut dapat disimpulkan bahwa kedua batubara yang tersingkap di daerah penelitian termasuk dalam high grade coal berdasarkan ash content (% db) dan rank kedua batubara tersebut termasuk dalam subbituminous rank low rank) berdasarkan nilai kalor menurut Classification of In Seam Coal (UN-ECE, 1998). Selain itu dilakukan analisis petrografi material organik yang memiliki tujuan untuk menentukan lingkungan pengendapan batubara di daerah penelitian. Metode yang dilakukan dengan analisis maseral dan mineral, plotting Tissue Preservation Index (TPI) terhadap Gelification Index (GI). Plot Tissue Preservation Index (TPI) dan Gelification Index (GI) terhadap kedua sampel batubara menunjukkan bahwa peristiwa penggambutan atau pembatubaraan terjadi pada lingkungan lower delta plain.

Abtrak (Bhs. Inggris)

Research located in the area of Tanjung Agung, District Tanjung Agung, Muara Enim Regency, South Sumatra has a unique geology in terms of natural resources. Natural resources contained in the research area in the form of coal. The coal was formed in the Muara Enim Formation. In the research area, a proximate analysis was conducted to determine the quality of coal according to the Classification of Inseam Coal (UN-ECE, 1998). The results of successive analysis of two A2 and C coal samples in the laboratory, namely proximate analysis with values for moisture in water dried 14.8% and 16.7%, Ash Content 4.6% and 3.7%, Volatile Matter 40.7% and 39.7%, Fixed Carbon 39.9% and 39.9%, Total Sulfur 0.15% and 0.37% in water dried base (adb). In addition to the consecutive calorific values of 5446 and 5324 cal/gram in the dried water base (adb). The calorific value converted into daf base is 28.5 Mj/Kg and 28.3 Mj/Kg (daf) respectively. From these results, it can be concluded that the two coals uncovered in the research area are included in the high grade coal based on ash content (% db) and the rank of both coals is included in the subbituminous rank low rank) based on calorific value according to the Classification of In Seam Coal (UN-ECE, 1998). In addition, an analysis of organic material petrography is carried out that aims to determine the coal deposition environment in the research area. The method is done by maseral and mineral analysis, plotting Tissue Preservation Index (TPI) against Gelification Index (GI). Plot Tissue Preservation Index (TPI) and Gelification Index (GI) of both coal samples show that netting or logging events occur in the lower delta plain environment.

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