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Evaluation of coking properties bituminous medium volatile coal Batu Ayau Formation Kutai Basin Central Kalimantan Hendra Amijaya 2018 IOP Conference Series Earth and Environmental Science
Briefly coking coal is a hard coal with the quality that allows the production of coke to be suitable for supporting a blast furnace charge On the other hand different from coking coal non coking coal also commonly known as thermal coal or steam coal [3] is all other hard coals which are not classified as coking coals
·Processes 2023 11 724 2 of 16 and carboxyl groups break down and release gases such as carbon dioxide and water in the temperature range of 200 400 C Secondly depolymerization reactions
·The aim of this study is to evaluate the quality of the metallurgical coking coal seams in the north block of Eastern Parvadeh coal deposit located in Tabas Central Iran Quality particulars of
Demineralization of low grade coal A review Pratima Meshram Pandey in Renewable and Sustainable Energy Reviews 2015 Coking and non coking coals Coking coals are used for production of coke which is used in steel industries and non coking coals are required for thermal power plants for steam production Coking coals are hard porous substance that
·This study aims at identifying the proper parts of C 1 and B 2 coking coal seams in the North block of East Parvadeh coal deposit Central Iran using the concentration volume C V fractal modeling according to sulfur and ash values which were calculated by turning bands conditional simulation The C V log log plots were generated based on results of 100
·Coking coal mines although known about for decades were not exploited until the 2000s mainly in the confluence area of the Central/South/East Kalimantan region Production to date is mainly semi soft coking coal from companies like Marunda Grahamineral partly owned by Japan s Itochu Metallurgical coal production commenced in the mid 2000s
·Coke is an integral component of the blast furnace charge; therefore it plays an important role in the integrated steelmaking process Achieving the required coke quality parameters by producers requires the use of a high proportion of the highest quality coking coals hard coking coals in the coking blends which significantly increases the unit production
·The 38 coals C1 C38 with different ranks including four gas coals two 1/3 coking coals thirteen fat coals fourteen coking coals and five lean coals were selected for this investigation The ash content of these coals ranged from % to % while the volatile matter varied between % and %
·To obtain a better understanding of the development of coking pressure during the carbonization process the plastic and semicoke layers of nine coking coals were investigated The permeability of the plastic layer to the passage of gas and the porosity of the semicoke were analyzed at two temperatures 500 and 800 °C In the case of dangerous coals there was a
·The targets were within Eocene age coal measures of the upper Kutai sub basin of East and Central Kalimantan and nearby areas with similar stratigraphy within the NW portion of the Barito Basin The quality of Central Kalimantan coking coals Proceedings Kalimantan Coal and Mineral Resources 2010 Balikpapan Indonesia 2010 pp 1 11
·coals have considerably higher volatile matter than the BBP samples analysed to date The generally low volatile matter of the outcrop samples analysed to date may impact the coking potential of these coals and further metallurgical coal analyses are warranted to test the suitability of these coals for a coking product
bituminous coking coals International Journal of Coal Geology p 167 176 Petrologi dan Geokimia Batubara Coking Pada Formasi Batu Ayau Daerah Murung Raya Provinsi Kalimantan Tengah Serta Pengaruhnya Terhadap Karakteristik Produk Kokas Metalurgi DEDDY TANGGARA Ir Donatus Hendra Amijaya IPM
Download Table Proximate analysis of coal from publication Evaluation of coking properties bituminous medium volatile coal Batu Ayau Formation Kutai Basin Central Kalimantan Selected coal
Evaluation of coking properties bituminous medium volatile coal Batu Ayau Formation Kutai Basin Central Kalimantan D Tanggara DH Amijaya SS Surjono IOP Conference Series Earth and Environmental Science 212 0
·Selected coal samples of Batu Ayau formation in Murung Raya Central Kalimantan Indonesia were analyzed in order to evaluate its coking properties for metallurgical propose The samples from an
·Kalimantan in the Pulobalang Formation [3 4] while in Central Kalimantan it is identified in the Batu Ayau Formation [5] The more intensive research and development in the case of coking coal especially an understanding of coal quality for the quality of coke making in Indonesia especially in the Bintuni Basin is very important to do
Evaluation of coking properties bituminous medium volatile coal Batu Ayau Formation Kutai Basin Central Kalimantan
·Some of the biggest coking coal deposits of Mongolia Four coking coal deposits such as Pennsylvanian Nuurstkhotgor Upper Permian Khurengol and Tavantolgoi and Lower Middle Jurassic Ovoot are selected to present here Coal quality Nuurstkhotgor coals have crucible swelling number CSN and 0 86 G index Vitrinite reflectance value R
·The blends of multiple coals with distinct properties were heated to temperature exceeding 1100 °C in coke oven in order to produce metallurgical coke [1] during which a multitude of chemical reactions took place [2] [3] [4] The evolution of coking properties was contingent upon the coal structure transformation during carbonization as previously
·With the huge utilization of inferior coals like high sulfur coal in coking industry high quality 1/3 coking coal is badly needed to regulate sulfur content by its abundant volatiles and to maintain the coke strength by its high coking ability The replacement of coals in a similar category is common in practical coke making
The Quality of Central Kalimantan Coking Coals Kalimantan Coal and Mineral Resources Proceeding MGEI IAGI Balikpapan p 1 11 Riddell J dan Han T 2017 Ash Chemistry Database for British Columbia Rocky Mountain Bituminous Coals British Columbia
