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EVALUATION OF SELECTED HIGH RANK COAL IN KUTAI BASIN, EAST KALIMANTAN RELATING TO ITS COKING PROPERTIES

Main Authors: Daulay, Bukin; Research and Development Centre for Mineral and Coal Technology, Santoso, Binarko; Research and Development Centre for Mineral and Coal Technology, Ningrum, Nining Sudini; Research and Development Centre for Mineral and Coal Technology
Format: Article info application/pdf eJournal
Bahasa: eng
Terbitan: Puslitbang tekMIRA , 2017
Subjects:
coking coal
maceral
vitrinite reflectance
crucible swelling number
Online Access: http://jurnal.tekmira.esdm.go.id/index.php/imj/article/view/301
http://jurnal.tekmira.esdm.go.id/index.php/imj/article/view/301/186
ctrlnum article-301
fullrecord <?xml version="1.0"?> <dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><title lang="en-US">EVALUATION OF SELECTED HIGH RANK COAL IN KUTAI BASIN, EAST KALIMANTAN RELATING TO ITS COKING PROPERTIES</title><creator>Daulay, Bukin; Research and Development Centre for Mineral and Coal Technology</creator><creator>Santoso, Binarko; Research and Development Centre for Mineral and Coal Technology</creator><creator>Ningrum, Nining Sudini; Research and Development Centre for Mineral and Coal Technology</creator><subject lang="en-US">coking coal, maceral, vitrinite reflectance, crucible swelling number</subject><subject lang="en-US"/><description lang="en-US">Abundant coal seams of Miocene age with thickness of up to 4.7 metres occur in Kutai Basin, East Kaliman- tan. Selected coals are analyzed in order to evaluate its coking properties. The coals have bituminous in rank with calorific value of 5,582-8,357 kg/kcal (adb) and vitrinite reflectance of 0.57-0.97%. These selected high rank coals are normally concentrated in high gradient temperature zone or proximity to intrusive body. Vitrinite reflectances of these coals are lower than those of Australian coking coals (1.04-1.06%), but higher than of Indonesian normal coalification coals. Vitrinite is the dominant maceral in coals from Kutai Basin (73-96%), while inertinite and liptinite are only present in small amount, i.e. trace-10.2% and trace-8.2%, respectively. In contrast, vitrinite is lower and inertinite is higher in Australian coking coals, i.e. 64.8- 79.0% and 18.4-31.6%, respectively. Generally, crucible swelling number of Kutai Basin coals is lower than of Australian coking coals. Based on its vitrinite reflectance and calorific values, some of selected high rank coals from Kutai Basin have developed semi coking properties. The enhancement of rank is probably due to the effect of igneous intrusions or high gradient temperature. However, vitrinite content of the coals is higher than of coking coal range. Crucible swelling number of the coal is also too low, except for sample EK 1 and EK 2 which have CSN too much of 6 and 4, respectively. Therefore, the coals are not categorized as prime coking coal, but they can be blended with bituminous inertinite rich coals to make metallurgical coke for blast furnace.</description><publisher lang="en-US">Puslitbang tekMIRA</publisher><contributor lang="en-US"/><date>2017-08-26</date><type>Journal:Article</type><type>Other:info:eu-repo/semantics/publishedVersion</type><type>Other:</type><type>Other:</type><type>File:application/pdf</type><identifier>http://jurnal.tekmira.esdm.go.id/index.php/imj/article/view/301</identifier><identifier>10.30556/imj.Vol18.No1.2015.301</identifier><source lang="en-US">Indonesian Mining Journal; Vol 18, No 1 (2015): INDONESIAN MINING JOURNAL Vol. 18 No. 1 February 2015; 1 - 10</source><source lang="id-ID">Indonesian Mining Journal; Vol 18, No 1 (2015): INDONESIAN MINING JOURNAL Vol. 18 No. 1 February 2015; 1 - 10</source><source>2527-8797</source><source>0854-9931</source><language>eng</language><relation>http://jurnal.tekmira.esdm.go.id/index.php/imj/article/view/301/186</relation><rights lang="en-US">Copyright (c) 2017 Indonesian Mining Journal</rights><rights lang="en-US">http://creativecommons.org/licenses/by-nc/4.0</rights><recordID>article-301</recordID></dc>
language eng
format Journal:Article
Journal
Other:info:eu-repo/semantics/publishedVersion
Other
Other:
File:application/pdf
File
Journal:eJournal
author Daulay, Bukin; Research and Development Centre for Mineral and Coal Technology
Santoso, Binarko; Research and Development Centre for Mineral and Coal Technology
Ningrum, Nining Sudini; Research and Development Centre for Mineral and Coal Technology
title EVALUATION OF SELECTED HIGH RANK COAL IN KUTAI BASIN, EAST KALIMANTAN RELATING TO ITS COKING PROPERTIES
publisher Puslitbang tekMIRA
publishDate 2017
topic coking coal
maceral
vitrinite reflectance
crucible swelling number
url http://jurnal.tekmira.esdm.go.id/index.php/imj/article/view/301
http://jurnal.tekmira.esdm.go.id/index.php/imj/article/view/301/186
contents Abundant coal seams of Miocene age with thickness of up to 4.7 metres occur in Kutai Basin, East Kaliman- tan. Selected coals are analyzed in order to evaluate its coking properties. The coals have bituminous in rank with calorific value of 5,582-8,357 kg/kcal (adb) and vitrinite reflectance of 0.57-0.97%. These selected high rank coals are normally concentrated in high gradient temperature zone or proximity to intrusive body. Vitrinite reflectances of these coals are lower than those of Australian coking coals (1.04-1.06%), but higher than of Indonesian normal coalification coals. Vitrinite is the dominant maceral in coals from Kutai Basin (73-96%), while inertinite and liptinite are only present in small amount, i.e. trace-10.2% and trace-8.2%, respectively. In contrast, vitrinite is lower and inertinite is higher in Australian coking coals, i.e. 64.8- 79.0% and 18.4-31.6%, respectively. Generally, crucible swelling number of Kutai Basin coals is lower than of Australian coking coals. Based on its vitrinite reflectance and calorific values, some of selected high rank coals from Kutai Basin have developed semi coking properties. The enhancement of rank is probably due to the effect of igneous intrusions or high gradient temperature. However, vitrinite content of the coals is higher than of coking coal range. Crucible swelling number of the coal is also too low, except for sample EK 1 and EK 2 which have CSN too much of 6 and 4, respectively. Therefore, the coals are not categorized as prime coking coal, but they can be blended with bituminous inertinite rich coals to make metallurgical coke for blast furnace.
id IOS4265.article-301
institution Kementerian Energi dan Sumber Daya Mineral
institution_id 105
institution_type library:special
library
library Pusat Penelitian dan Pengembangan Teknologi Mineral dan Batubara
library_id 974
collection Indonesian Mining Journal
repository_id 4265
subject_area Mining and Related Operations/Teknik Tambang dan Teknik Pertambangan
Minerals of Indonesia/Mineral di Indonesia
Chemistry and Allied Science/Kimia dan Ilmu yang Berhubungan
Metallurgy/Metal, Metalurgi
city BANDUNG
province JAWA BARAT
shared_to_ipusnas_str 1
repoId IOS4265
first_indexed 2017-09-10T02:53:50Z
last_indexed 2018-02-01T02:57:26Z
recordtype dc
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