Impact of Sulphur Content on Coal Quality at Delta Plain Depositional Environment: Case study in Geramat District, Lahat Regency, South Sumatra

  • Siska Linda Sari Geological Study Program, Sriwijaya University, Jl. Srijaya Negara, Bukit Besar, Ilir Barat I Palembang 30139
  • Mutia Armilia Rahmawati Geological Study Program, Sriwijaya University, Jl. Srijaya Negara, Bukit Besar, Ilir Barat I Palembang 30139
  • Alan Triyoga Geological Study Program, Sriwijaya University, Jl. Srijaya Negara, Bukit Besar, Ilir Barat I Palembang 30139
  • Idar Wati Geological Study Program, Sriwijaya University, Jl. Srijaya Negara, Bukit Besar, Ilir Barat I Palembang 30139

Abstract

The research was conducted in Geramat District of Lahat Regency, South Sumatra. An evaluation of the geological condition of the research area shown that the coal deposits were found in Muara Enim Formation as a coal-bearing formation. The method used was literature study, field observation and the laboratory work includes proximate and petrography analysis. The aim of this research is to determine the environmental condition of coal based on the change of total sulphur content and to know the relation between ash content to calorific value.  As the result of proximate analysis conducted on five samples of coal, the research area obtained total sulphur (0,21-1,54% adb), ash content (3,16 - 71,11% adb) and gross calorific value (953 - 5676 cal/g. adb). Based on the result of maceral analysis showed the maceral percentage of coal in research area composed by vitrinite (77,8-87,4 %), liptinite (0,6 %), inertinite (8,0 – 17,6 %) and mineral matter concentration in the form of pyrite (1,6-4,6 %). The average reflectance value of vitrinite (Rv) of coal in the research area (0.54%). the results analysis shows that the coal in Muara Enim Formation on the research area is in the transitional lower delta plain depositional environment phase. Any changes in the sedimentary environment affected by sea water will be followed by changes in total sulphur and the higher ash content, on the contrary, the lower calorific value of the coal.

References

ASTM. 1981. Annual Book of ASTM. Philadelphi, United States of America.

Barber, A.J., Crow and Milsom J.S. 2005. Sumatra : Geology, Resources and Tectonic Evolution. The Geological Society. London.

Casagrande, D.J. 1987. Sulphur in Peat and Coal, in : Scott, A.C. (ed.) Coal And Coal-Bearing Strata : Recent Advances, Geol. Soc. Spec. Publ., No.32, p 87-105.

de Coster G. L. 1974. The Geologi of Central Sumaatera and South Sumatera Basins. Proceeding Indonesian petroleun Assoc, 4th Annual Convention.
Diessel, C.F.K., 1992, Coal – Bearing Depositional System, Spinger – Verlag Berlin. (hal. 423-430).

Gafoer.S, Burhan. G, Dan Purnomo.J. 1986. Laporan

Geologi Lembar Palembang, Sumatera., Skala 1 : 250.000. Pusat Penelitian dan Pengembangan Geologi.

Horne, J.C., Ferm, J.C., Caruccio, F.T., Baganz, B.P. 1978, Depositional Models in Coal Exploration and Mining Planning in Appalachian Regioan, AAPG Bulletin 62 p: 2379 – 2411, America.

Lamberson, M.N., Bustin, R.M., Kalkreuth, W. (1991). Lithotype (maceral) composition and variation as correlated with paleowetland environments, Gates Formations, Northeastern British Columbia. Canada; International Journal of Coal Geology 18. p. 87–124

Sulistyana B., Waterman., and Saputra, Dean. 2012. Analisis Pengaruh Lingkungan Pengendapan Batubara Terhadap Kandungan Sulfur Batubara. Proceeding Simposium dan Seminar Geomekanika Ke-1 Tahun 2012.
Ward, C.R. (1986). Review of Mineral Matter in Coal, Australian Coal Geology,Geol.Soc. of Australia, Vol. 6 pp. 87-107.

Walker, R. G., and Cant, D. J. (1979). Facies models 3. Sandy fluvial systems, in Walker, R. G. (ed.), Facies models: Geoscience Canada Reprint Ser. 1 , p. 23-31.
Published
2017-09-01
How to Cite
SARI, Siska Linda et al. Impact of Sulphur Content on Coal Quality at Delta Plain Depositional Environment: Case study in Geramat District, Lahat Regency, South Sumatra. Journal of Geoscience, Engineering, Environment, and Technology, [S.l.], v. 2, n. 3, p. 183-190, sep. 2017. ISSN 2541-5794. Available at: <http://journal.uir.ac.id/index.php/JGEET/article/view/301>. Date accessed: 26 sep. 2017. doi: https://doi.org/10.24273/jgeet.2017.2.3.301.
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Articles