GEOLOGI DAN STUDI KUALITAS BATUBARA SEAM “E” FORMASI MUARA ENIM BERDASARKAN ANALISIS PROKSIMAT DAERAH KARANG RAJA, KECAMATAN MUARA ENIM, KABUPATEN MUARA ENIM, PROVINSI SUMATERA SELATAN

Muhammad Anwar, Aris (2023) GEOLOGI DAN STUDI KUALITAS BATUBARA SEAM “E” FORMASI MUARA ENIM BERDASARKAN ANALISIS PROKSIMAT DAERAH KARANG RAJA, KECAMATAN MUARA ENIM, KABUPATEN MUARA ENIM, PROVINSI SUMATERA SELATAN. Other thesis, UPN "Veteran" Yogyajarta.

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Abstract

SARI
Daerah penelitian berada di daerah Karang Raja, Kecamatan Muara Enim,
Kabupaten Muara Enim, Sumatera Selatan. Formasi pembawa batubara pada daerah
penelitian adalah Formasi Muara Enim Miosen Tengah – Akhir. Hal menarik yang dapat
diteliti yaitu faktor geologi seperti lingkungan pengendapan berpengaruh terhadap
kualitas batubara, karena Formasi Muara Enim terendapkan pada lingkungan delta maka
pasokan sedimen dari sungai dan pasang surut air laut berubah - ubah, sehingga perlu
dilakukan analisis kualitas batubara.
Penelitian dilakukan dengan pemetaan geologi permukaan dan analisis data bawah
permukaan (data bor). Penentuan kualitas batubara dilakukan denhan analisis proksimat.
Analisis proksimat merupakan analisis yang meliputi moisture content, volatile matter,
ash content dan fixed carbon dari sampel batubara.
Berdasarkan hasil penelitian didapatkan geomorfologi tersusun oleh satuan
bentuklahan perbukitan homoklin bergelombang lemah, perbukitan homoklin
bergelombang sedang dan tubuh sungai. Stratigrafi daerah penelitian terdiri dari satuan
batulempung Muara Enim, satuan batupasir Muara Enim dan endapan aluvial. Struktur
geologi yang terbantuk yaitu sesar normal, kekar, cleat dan lapisan homoklin. Hasil
analisis proksimat didapat nilai rata-rata Total moisture sebesar 38,38 % (ar). Inherent
moisture 13,51 % (adb), Kadar abu (ash) 5,18 % (adb). Volatile matter 43,22 % (adb).
Fixed carbon 36,4 % (adb), Total sulfur 0.24 % (ad), kalori 5657,5 (adb) kcal/kg.Hasil
perhitungan calorific value (dmmf) didapatkan nilai 9859,11 Btu/1b dikategorikan
Subbituminous B. Berdasarkan analisis geologi dan dikombinasikan dengan data analisis
proksimat dapat mendukung interpretasi lingkungan pengendapan batubara yaitu pada
lingkungan lower delta plain.
Kata kunci: Analisis Proksimat, Formasi Muara Enim, Karang Raja, Lingkungan
pengendapan, Kualitas Batubara
ABSTRACT
The research area is in the Karang Raja area, Muara Enim District, Muara Enim
Regency, South Sumatra. The coal-bearing formation in the study area is the Middle –
Late Miocene Muara Enim Formation. The interesting thing that can be studied is that
geological factors such as depositional environment affect the quality of coal, because the
Muara Enim Formation was deposited in a deltaic environment, the supply of sediment
from rivers and seawater fluctuates, so it is necessary to analyze the quality of coal.
The research was carried out by surface geological mapping and analysis of
subsurface data (drill data). Determination of coal quality is carried out by proximate
analysis. Proximate analysis is an analysis that includes moisture content, volatile matter,
ash content and fixed carbon from coal samples.
Based on the research results, it was found that the geomorphology is composed of
landform units of weakly undulating homocline hills, moderately undulating homocline
hills and river. The stratigraphy of the study area consists of Muara Enim claystone units,
Muara Enim sandstone units and alluvial deposits. The geological structures formed are
normal faults, joints, cleats and homocline bed. The results of the proximate analysis
obtained an average total moisture value of 38.38% (ar). Inherent moisture 13.51 %
(adb), Ash content (ash) 5.18 % (adb). Volatile matter 43.22 % (adb). Fixed carbon 36.4%
(adb), Total sulfur 0.24% (ad), calories 5657.5 (adb) kcal/kg. The calorific value (dmmf)
calculation results obtained a value of 9859.11 Btu/1b categorized as Subbituminous B.
Based on analysis geology and combined with proximate analysis data can support the
interpretation of the coal depositional environment, namely in the lower delta plain
environment.
Keywords: Coal Quality, Depositional environment, Karang Raja, Muara Enim
Formation, Proximate Analysis.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Coal Quality, Depositional environment, Karang Raja, Muara Enim Formation, Proximate Analysis.
Subjects:	Q Science > QE Geology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Eko Yuli
Date Deposited:	23 Nov 2023 04:52
Last Modified:	23 Nov 2023 04:52
URI:	http://eprints.upnyk.ac.id/id/eprint/38192

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