Results 11 to 20 of about 2,307 (168)
Decrease of Calorific Value in Coal of Oxidation
Journal of the Fuel Society of Japan, 1973 Low temperature oxidation of coal is influenced by various factors such as temperature, time, degree of oxidation, particle size, velocity of ventilation and so on.This paper is concerned with the measurement of changed weight of coal caused by oxidation of low temperature using the weight method of thermobalance, and considers macroscopic mechanism of
Kinji Hoshizawa, Tetsuo Ono
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Preliminary Study of Calorific Value Increase on Lignite Coal Using Dialkyl Carbohydrate Biosurfactant [PDF]
Journal of Pure and Applied Chemistry Research, 2020 Indonesian coal consumption is dominated by a low-grade coal quality, and supplied from local coals mining which was composed of lignite. A technological breakthrough has to be main objective to convert low grade coal into upper-class coal.
Mahreni Mahreni, Mitha Puspitasari
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Coal characteristics of the eocene to pliocene epoch: A case study in the Berau Sub-basin, East Kalimantan, Indonesia [PDF]
E3S Web of ConferencesA complex material, coal is primarily composed of carbon, hydrogen, oxygen, nitrogen, sulfur, and other minerals. The research area is located in the Berau Sub-basin, which is part of the Tarakan Basin.
Wahyu Sugiarto +3 more
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Heliyon, 2022 This study was carried out with one of the physiochemical techniques of coal sample beneficiation using froth flotation technique for upgrading the quality of Achibo-Sombo-Dabaso coal, southwestern Ethiopia.
Temam Usman +3 more
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The Potential Of Biomass Co-firing In Overcoming Coal Limitation In Steam Power Plants [PDF]
E3S Web of ConferencesThe limitations that lead to coal scarcity are interesting to study, because coal is used as the main fuel source in steam power plants (PLTU). In this study, the use of biomass made in the briquette model for biomass cofiring is offered as a substitute ...
Hendrik Sanjaya Eli +6 more
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PENETAPAN NILAI KALORI DALAM BATUBARA DENGAN KALORIMETER PARR 6200
Sains Natural, 2019 Determining Calory Value of Coal With Calorimeter Parr 6200Â Coal is a source of energy utilized by the process of making cement. This type of coal determines the quality and calorific value of the coal. Determination of calorific value on coal is done
Finda Pratiwi Istomo, Ameylia Tristiasti
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A Feasibility Study Evaluating the Efficiency of Fine Coal Washing Using Gravity Separation Methods
ARCHive-SR, 2019 Coal mining and washing activities in South Africa often lead to the generation of fine and ultra-fine coal which is in most cases discarded due to high handling and transportation costs.
Agnes Modiga +3 more
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Biomasses of different Salix L. clones in the decarboxylation process during energy production [PDF]
Zbornik Matice Srpske za Prirodne NaukeBiomass is increasingly employed in diverse applications to achieve and enhance energy efficiency, owing to its carbon-neutral nature. This is attributed to the fact that the quantity of CO2 released during its combustion corresponds precisely ...
Urošević Jelena D. +5 more
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Limited Supply of Quality Coal Affects Subcritical PC Boiler CFPP 300 – 400MW Capacity [PDF]
E3S Web of ConferencesIndonesian coal production exceeded the target, but most of it was exported, particularly for high rank and medium rank coal. Domestic Market Obligation regulation was not effective enough to meet domestic demand for quality coal to supply state owned ...
Saksono Hermawan Donny +3 more
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发电技术ObjectivesThe calorific value of coal is one of the important evaluation criteria for measuring coal quality, and is also the main basis for valuation of power coal.
QIAO Shichao +4 more
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