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All Journal Buletin Sumber Daya Geologi Jurnal GEOSAPTA Journal of Applied Geology
Beny Wiranata
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Energy Engineering Environmental Science

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PENGARUH KANDUNGAN ABU DAN ZAT TERBANG TERHADAP MAKSIMUM FLUIDITAS BATUBARA FORMASI TANJUNG DI DAERAH SEKAKO, KALIMANTAN TENGAH: THE INFLUENCE OF ASH AND VOLATILE MATTER CONTENTS ON MAXIMUM FLUIDITY OF TANJUNG FORMATION COAL IN SEKAKO AREA, CENTRAL KALIMANTAN PROVINCE Wiranata, Beny; Amijaya, Hendra; Anggara, Ferian; Tanggara, Deddy N.S.P.
Buletin Sumber Daya Geologi Vol. 15 No. 2 (2020): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v15i2.242

Abstract

High to low volatile bituminous coals of Tanjung Formation in Central Kalimantan Province is known to be potentially used as a metallurgical or coking coal. Coal maximum fluidity is one important parameter which is strongly connected to the quality of the coke produced. This study aims to determine the relationship between coal maximum fluidity and its volatile matter and ash content. Four coal from A seam and 6 coal from B seam of Tanjung Formation in Sekako area were sampled using a ply by ply channel sampling method. Samples are dominated by bright coal and banded bright coals lithotype. All coal samples are subjected to proximate and Gieseler plastometer analysis in the laboratory. The coal samples Laboratory results show that coal in the study area have ash content ranging from 2,79 to 9,05 (wt%, adb), volatile matter contents varies from 35,14 to 39,50 (wt%, adb) and coals maximum fluidity varies from 22263 to 49029 (ddpm). Further data evaluation indicates that in the study area, coal ash content are negatively correlated (r= -0.656, R2= 0.431) and had no significant effect on the maximum of coal fluidity (r = -0,656, R2 = -0,431 and sig. 0,055 > 0,05). On the other hand, coal volatile matter are positively correlated (r = 0.794; R2 = 0.6301) and had a significant effect (sig. 0.003 <0.05) on the maximum fluidity of coal. The increase of ash content causes the decrease of coal maximum fluidity, whereas the increase of coal volatile matter causes the increase of coal maximum fluidity. The correlation of volatile matter content and coal maximum fluidity can be expressed by an equation of y = 6327,9x - 200248.
KUALITAS BATUBARA FORMASI TANJUNG DI DAERAH SEKAKO, KALIMANTAN TENGAH Beny Wiranata; Hendra Amijaya; Ferian Anggara; Deddy N.S.P. Tanggara
Geosapta Vol 5, No 2 (2019): Juli 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (919.054 KB) | DOI: 10.20527/jg.v5i2.6019

Abstract

Formasi Tanjung yang berumur Eosen merupakan salah satu formasi pembawa batubara di Cekungan Barito, Kalimantan Tengah. Kualitas batubara merupakan suatu parameter penting khususnya dalam proses pemanfaatanya. Penelitian ini bertujuan untuk mengetahui kualitas batubara Formasi Tanjung di Daerah Sekako, Kalimantan Tengah. Sampel batubara diambil dengan menggunakan channel sampling ply by ply dan kemudian dilakukan analisis laboratorium meliputi analisis proksimat, ultimat dan nilai kalori. Batubara seam A dan B Formasi Tanjung di Daerah Sekako memiliki kandungan lengas total 1,98 – 4,33 (wt%, ar), kandungan abu 2,79 – 9,05 (wt%, adb), zat terbang 35,14 – 39,50 (wt%, adb), karbon tertambat 53,47 – 59,41 (wt%, adb), nitrogen 1,51 – 1,86 (wt%, adb), total sulfur 0,29 – 1,54 (wt%, adb), nilai kalori 15.889,93 – 17.235,44 (Btu/lb mmmf) dan fuel ratio 1,35 -  1,66. Batubara tersebut secara umum merupakan batubara high volatile A bituminous. Batubara tersebut berpotensi dimanfaatkan baik sebagai thermal coal maupun sebagai batubara coking. Kata kunci : kualitas batubara, Formasi Tanjung, Cekungan Barito 
Total Sulfur and Ash Yield of Tanjung Formation Coal in Sekako, Barito Basin, Central Kalimantan: Implication of Depositional Process Hendra Amijaya; Beny Wiranata; Ferian Anggara; Agung Rizki Perdana; Oyinta Fatma Isnadiyati; Deddy Nan Setya Putra Tanggara
Journal of Applied Geology Vol 4, No 2 (2019)
Publisher : Geological Engineering Department Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2938.647 KB) | DOI: 10.22146/jag.53208

Abstract

Tanjung Formation is one of the major coal-bearing deposit in the Barito Basin, Central Kalimantan. The distribution of total sulfur and ash yield in coal is closely related to the depositional environment. This study was to determine the total sulfur and ash yield and the interpretation of the dynamics of depositional process. Coal seam A and B generally have low to medium ash yield 2.82 to 9.23 (wt.%, db) and low total sulfur content of <1 (wt.%, db), except for the 6PLY1 coal sample which has total sulfur content that relatively high at 1.55 (wt.%, db). Coal samples 5PLY1A, 5PLY1B, 5PLY3, 5PLY5, 6PLY2, 6PLY4, 6PLY5, 6PLY7, and 6PLY9 which have low to medium ash yield and low total sulfur content <1% (wt.%, db) are formed in the topogeneous mire (freshwater swamp) in a fluvial environment. The total sulfur content was interpreted to be derived mainly from the parent plant materials. Meanwhile, the 6PLY1 coal sample which has an ash yield of 5.83 (wt.%, db) and total sulfur content of 1.55 (wt.%, db) formed in topogeneous mire in an environment that is invaded by sea water, and the total sulfur content were interpreted coming from the parent plant materials and the effect of seawater invasion which is rich in sulfate (SO4) compounds. It is also supported by the occurrence of syngenetic mineral content (framboidal pyrite) and epigenetic pyrite of 1.23 (vol.%).
Co-Authors Agung Rizki Perdana Deddy Tanggara Donatus Hendra Amijaya Ferian Anggara Isnadiyati, Oyinta Fatma Oyinta Fatma Isnadiyati Perdana, Agung Rizki