Results 1 to 10 of about 9,499,540 (295)
, 1989 This work is a compilation of reports on ongoing research at the University of North Dakota. Topics include: Control Technology and Coal Preparation Research (SO{sub x}/NO{sub x} control, waste management), Advanced Research and Technology Development (turbine combustion phenomena, combustion inorganic transformation, coal/char reactivity, liquefaction
G. F. Weber, D. L. Laudal
core +5 more sources
International Journal of Mining Science and Technology, 2021 In this study, low-rank coal-water slurry (LCWS) was prepared using polyoxyethylene dodecylphenol ether (PDPE) and polyoxyethylene lauryl ether (PLE), respectively.
Lin Li +7 more
doaj +1 more source
Pyrolysis characteristics and kinetics of Indian low rank coal using thermogravimetric analysis
International Journal of Coal Science & Technology, 2019 The present research work deals with the thermogravimetric analysis (TGA) and kinetic analysis of three typical Indian low rank coals selected from Indian coal mines at various temperature ranges. Experiments were performed at four different heating rate
Krishna Kant Dwivedi +3 more
doaj +1 more source
Frontiers in Earth Science, 2021 The accurate characterization of coal pore structure is significant for coalbed methane (CBM) development. The splicing of practical pore ranges of multiple test methods can reflect pore structure characteristics. The pore\fracture compressibility is the
Jielin Lu +4 more
doaj +1 more source
Critical pore size for micropore filling in coal samples with different rank coals
PLoS ONE, 2022 The objectives of this study were to explore the occurrence and migration of coalbed methane in coals of different ranks and reveal the microscopic reservoir space and the mechanism of coalbed methane.
Lin Hong +3 more
doaj +2 more sources
Low-Calorie Coal Liquefaction Products as an Alternative Fuel Oil
Indonesian Journal of Chemistry, 2022 Liquefaction of low-rank coal has been done to optimize the utilization of low-rank coal, which is less economical for obtaining alternative fuel oil. Coal samples were taken from the Bukit Pinang coal mine, Samarinda Ulu, East Kalimantan.
Yulfi Zetra +5 more
doaj +1 more source
Materiali in TehnologijeIn this study, a ceramic proppant for hydraulic fracturing in oil and gas extraction was prepared by sintering secondary aluminum ash as the main raw material, kaolin as the auxiliary material and manganese dioxide as the additive.
Yongming Zeng +6 more
doaj +1 more source
Flotation of low-rank coal slimes
Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, 2023 During coal production, a significant amount of fine coal dust is generated. The utilization of these high-ash coals is of great importance for the national economy. This study aims to recover the slime of the Lavvar facility located in the Kütahya-Tunçbilek region by flotation.
Vildan ÖNEN, Mustafa Kutkan KARAOĞLAN
openaire +2 more sources
Preliminary study on fully replacing bauxite with secondary aluminum ash in ceramsite proppants
Case Studies in Chemical and Environmental EngineeringThis study investigates using secondary aluminum ash, a solid waste, to fully replace bauxite as the main raw material, with kaolin as a binder to prepare ceramsite proppants.
Peipeng Yang +4 more
doaj +1 more source
MoleculesTo reduce solid waste production and enable the synergistic conversion of solid waste into high-value-added products, we introduce a novel, sustainable, and ecofriendly method.
Kaixing Gao +8 more
doaj +1 more source