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Indonesian Coal Quality and Coal Reserves – Global Energy ...

2021-8-27  The coal has nil or minimal coking properties, and thus with few exceptions, can only be used as steaming coal. Only some higher-ranking types are also suitable as pulverised injection coal (PCI). The qualities for export generally have a 37–47% share of volatile matter, with 1–10% ash and mostly 15–22% moisture.

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TYPICAL INDONESIAN COAL SPECIFICATIONS

2019-11-5  TYPICAL INDONESIAN COAL SPECIFICATIONS 5100 - 4900 Typical Specs (will vary from mine to mine) 5300 - 5100 Typical Specs (will vary from mine to mine) ASPECT Total Moisture Inherent Moisture Ash Content Volatile Moisture Fixed Carbon Total Sulphur HGI Size DETAIL ADB ARB NAR ARB ADB ADB ADB ADB ADB 0-50

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INDONESIAN COAL INDUSTRY OUTLOOK

2013-9-27  sectors to invest in coal mining industry especially in introducing new clean coal technology such as : coal liquefaction and coal gasification. • The government of Indonesian is committed to promote the application upgrading brown coal technology by coal industry in order to utilize abundant low rank coal in Indonesia.

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INDONESIAN STEAM COAL - stallionenergy

2015-12-3  INDONESIAN STEAM COAL STALLION ENERGY’S INDONESIAN COAL generally have medium calorific values (5000-7000 kcal/kg or 21-29 MJ/kg), with relatively high percentages of volatile matter; they benefit from low ash and sulphur contents, making them some of the cleanest coals in the world. TYPICAL PROPERTIES PHYSICAL PROPERTIES ...

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Influence of Combustion Conditions and Coal Properties

2019-12-12  Regarding the coal properties, the fuel ratio affected the ash particle size distribution. The density and shape of the ash particles strongly depended on their ash size. Our results indicated that the shape of the ash particles and the concentration of unburned carbon affected the specific surface area.

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Influence of coal properties on coal conversion processes ...

2021-2-8  coal selection since carbonization is highly influenced by coal properties. Several coal properties are essential for the accomplishment of the carbonization process. 2.1.1 Organic composition The organic composition of coals comprises of macerals which

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The Influence of Coal Physical and Mechanical Properties ...

2020-11-4  241 The Influence of Coal Physical and Mechanical Properties and Mining Energy Consumption Factor on Airborne Respirable Dust Level Antoni Koziel, 1 Malgorzata Malec, 1 and Ewa Wardas2 1KOMAG, Mining Mechanization Centre, 44-101 Gliwice, Poland; 2Rybnicka Coal Joint Stock Co., 44-253 Rybnik, Poland ABSTRACT

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Influence of additives of various origins on thermoplastic ...

2009-12-1  Two coking coals of different rank were chosen in order to assess the influence of various additives on their thermoplastic properties. Six additives of different origin and characteristics were selected: two non-coking coals, together with a commercial coal tar pitch, a residue from the bottom of the benzol distillation tower and two residues from the tyre recycling industry.

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Influence of Coal Properties on Forward Combustion in ...

For simplicity, the geometry is idealized to a straight circular channel of initially uniform diameter. Coal and inlet gas properties, as well as gas flow rate and initial channel diameter, are arbitrary. A baseline case, in which O 2-steam is injected into a channel in virgin coal, is chosen to match laboratory work reported by other ...

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COAL CHARACTERISTICS - Purdue University

2016-12-8  Geologists also classify coal types according to the organic debris, called macerals, from which the coal is formed. Macerals (microscopic organic constituents found in coal) are identified (microscopically) by reflected light - the reflective or translucent properties of the coal indicating the individual component macerals

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TYPICAL INDONESIAN COAL SPECIFICATIONS

2019-11-5  TYPICAL INDONESIAN COAL SPECIFICATIONS 5100 - 4900 Typical Specs (will vary from mine to mine) 5300 - 5100 Typical Specs (will vary from mine to mine) ASPECT Total Moisture Inherent Moisture Ash Content Volatile Moisture Fixed Carbon Total Sulphur HGI Size DETAIL ADB ARB NAR ARB ADB ADB ADB ADB ADB 0-50

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INDONESIAN STEAM COAL - stallionenergy

2015-12-3  INDONESIAN STEAM COAL STALLION ENERGY’S INDONESIAN COAL generally have medium calorific values (5000-7000 kcal/kg or 21-29 MJ/kg), with relatively high percentages of volatile matter; they benefit from low ash and sulphur contents, making them some of the cleanest coals in the world. TYPICAL PROPERTIES PHYSICAL PROPERTIES ...

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Coal Mining in Indonesia - Indonesian Coal Industry ...

The Indonesian coal industry is rather fragmented with only a few big producers and many small players that own coal mines and coal mine concessions (mainly in Sumatra and Kalimantan). Since the early 1990s, when the coal mining sector was reopened for foreign investment, Indonesia witnessed a robust increase in coal production, coal exports ...

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Influence of Combustion Conditions and Coal Properties

2019-12-12  To develop combustion technology for upgrading the quality of fly ash, the influences of the coal properties, such as the size of pulverized coal particles and the two-stage combustion ratio during the combustion, on the fly ash properties were investigated using our test furnace. The particle size, density, specific surface area (obtained by the Blaine method), and shape of fly ash particles ...

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THE INFLUENCE OF GAS ENVIRONMENT N COAL

2004 Coal Operators’ Conference The AusIMM Illawarra Branch 4 - 6 February 2004 195 THE INFLUENCE OF GAS ENVIRONMENT ON COAL PROPERTIES- EXPERIMENTAL STUDIES ON OUTBURST CONTROL Naj Aziz1, Ian Porter1 and Farhang Sereshki 1 ABSTRACT: The volumetric changes in the coal matrix (Coal Shrinkage) and permeability properties under various gas

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The Influence of Coal Physical and Mechanical Properties ...

2020-11-4  241 The Influence of Coal Physical and Mechanical Properties and Mining Energy Consumption Factor on Airborne Respirable Dust Level Antoni Koziel, 1 Malgorzata Malec, 1 and Ewa Wardas2 1KOMAG, Mining Mechanization Centre, 44-101 Gliwice, Poland; 2Rybnicka Coal Joint Stock Co., 44-253 Rybnik, Poland ABSTRACT

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Influence of coal characteristics on the yields and ...

@misc{etde_5175369, title = {Influence of coal characteristics on the yields and properties of hydrogenation products} author = {Guyot, R E} abstractNote = {The liquefaction data generated by the hydrogenation of forty coals of brown, sub-bituminous, medium to high volatile bituminous, low to medium volatile bituminous and anthracitic rank were assessed.

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RHEOLOGICAL PROPERTIES OF COAL OIL MIXTURES:

2018-6-13  ABSTRACT The effect of coal properties on the rheological properties of coal oil mixtures (COM) has been studied. Coal samples having different ash and moisture contents have been used to study the effect of these components on rheological properties of coal oil mixtures. It has been observed that coals having higher ash content give rise to less viscous coal oil mixtures and viscosity of the ...

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Influence of Coal Properties on Forward Combustion in ...

For simplicity, the geometry is idealized to a straight circular channel of initially uniform diameter. Coal and inlet gas properties, as well as gas flow rate and initial channel diameter, are arbitrary. A baseline case, in which O 2-steam is injected into a channel in virgin coal, is chosen to match laboratory work reported by other ...

Get Price

COAL CHARACTERISTICS - Purdue University

2016-12-8  Geologists also classify coal types according to the organic debris, called macerals, from which the coal is formed. Macerals (microscopic organic constituents found in coal) are identified (microscopically) by reflected light - the reflective or translucent properties of the coal indicating the individual component macerals

Get Price

INDONESIAN STEAM COAL - stallionenergy

2015-12-3  INDONESIAN STEAM COAL STALLION ENERGY’S INDONESIAN COAL generally have medium calorific values (5000-7000 kcal/kg or 21-29 MJ/kg), with relatively high percentages of volatile matter; they benefit from low ash and sulphur contents, making them some of the cleanest coals in the world. TYPICAL PROPERTIES PHYSICAL PROPERTIES ...

Get Price

TYPICAL INDONESIAN COAL SPECIFICATIONS

2019-11-5  TYPICAL INDONESIAN COAL SPECIFICATIONS 5100 - 4900 Typical Specs (will vary from mine to mine) 5300 - 5100 Typical Specs (will vary from mine to mine) ASPECT Total Moisture Inherent Moisture Ash Content Volatile Moisture Fixed Carbon Total Sulphur HGI Size DETAIL ADB ARB NAR ARB ADB ADB ADB ADB ADB 0-50

Get Price

Coal Mining in Indonesia - Indonesian Coal Industry ...

The Indonesian coal industry is rather fragmented with only a few big producers and many small players that own coal mines and coal mine concessions (mainly in Sumatra and Kalimantan). Since the early 1990s, when the coal mining sector was reopened for foreign investment, Indonesia witnessed a robust increase in coal production, coal exports ...

Get Price

Influence of Combustion Conditions and Coal Properties

2019-12-12  To develop combustion technology for upgrading the quality of fly ash, the influences of the coal properties, such as the size of pulverized coal particles and the two-stage combustion ratio during the combustion, on the fly ash properties were investigated using our test furnace. The particle size, density, specific surface area (obtained by the Blaine method), and shape of fly ash particles ...

Get Price

(PDF) 3 Properties of Coal Table 1.4 GCV for Various Coals ...

3 Properties of Coal Table 1.4 GCV for Various Coals Parameter Lignite Indian Coal Indonesian Coal South African Coal GCV (kcal/kg) 4,500 Download 1.3 Properties of Coal Coal Classification Coal is classified into three major types namely anthracite, bituminous, and lignite.

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THE INFLUENCE OF GAS ENVIRONMENT N COAL

2004 Coal Operators’ Conference The AusIMM Illawarra Branch 4 - 6 February 2004 195 THE INFLUENCE OF GAS ENVIRONMENT ON COAL PROPERTIES- EXPERIMENTAL STUDIES ON OUTBURST CONTROL Naj Aziz1, Ian Porter1 and Farhang Sereshki 1 ABSTRACT: The volumetric changes in the coal matrix (Coal Shrinkage) and permeability properties under various gas

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Elucidation of the Influence of Coal Properties on Coal ...

2019-4-18  Elucidation of the Influence of Coal Properties on Coal-Char Reactivity: A Look at Southern Hemisphere Coals Andrew Odeha*, Samuel Ogbeideb and Charity Okieimenc Department of Chemical Engineering, University of Benin, Benin City, Nigeria Abstract

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Indonesian coal specification - SlideShare

2013-6-14  Indonesian coal specification 1. coallateral 1 TYPICAL INDONESIAN COAL SPECIFICATIONS 5100 ‐ 4900 5300 ‐ 5100 Typical Specs (will vary from mine to mine) Typical Specs (will vary from mine to mine) ASPECT DETAIL

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Chemical Analyses and Physical Properties of 12 Coal ...

2012-7-24  Modern coal-quality data and geologic field observations are interpreted in terms of the coal geology in a small area near Pocahontas, Va. Detailed chemical analyses and physical-property determinations of 12 channel-coal samples (reported on whole-coal and laboratory ash basis) indicate that the coals are mostly of high coking quality, low

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Influence of coal ash properties on compressive behaviour ...

2015-11-24  Influence of coal ash properties on compressive behaviour of FA- and BA-based GPC Open PDF. Magazine of Concrete Research. ISSN 0024-9831 E-ISSN 1751-763X. Volume 67 Issue 24, December, 2015, pp. 1301-1314. Prev Next > Influence of coal ash properties on compressive behaviour of FA- and BA-based GPC ...

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