Results 11 to 20 of about 9,406,850 (295)

Low-rank coal research

open access: yes, 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

Biodesulphurisation of coal [PDF]

open access: yes, 2001
The emission of sulphur oxides during the combustion of coal is one of the causes of an environmental problem known as acid rain. Biodesulphurisation technology applied as a method to remove sulphur before coal combustion was investigated in
Prayuenyong, P.
core   +6 more sources

Hydrothermal Treatment of Low Rank Coal [PDF]

open access: yes, 2013
Abundance of low rank coal and increasing demand for energy provide an incentive for upgrading the low rank coal due to their high moisture and oxygen content. Various analyses were done to study the effect of the hydrothermal treatment on the physical and chemical structure of coal. Treatment of lignite coal results in a high reduction of moisture and
Sharifi, Mohammad
openaire   +2 more sources

Understanding the Role of Polyvinylpyrrolidone on Ultrafine Low-Rank Coal Flotation. [PDF]

open access: yesACS Omega, 2022
Effective regulation reagents are essential in low-rank coal flotation for improving the floatability of ultrafine particles. Polymer regulators have great potential in the surface modification of ultrafine coal particles.
Lin Q, Mei Y, Huang W, Zhang B, Liu K.
europepmc   +2 more sources

Experimental study on the influence of middle and low rank coal functional groups on coal wettability [PDF]

open access: yes, 2023
Coal seam water injection can effectively inhibit gas gushing in the process of coal mining, and its inhibition effect mainly depends on the wetting characteristics of coal seam.
Dongjie YAN   +6 more
core   +1 more source

Research and application of the prediction method for CBM enrichment area of low rank coal

open access: yes, 2021
The exploration of low rank coal coalbed methane(CBM) faces the problems of low resource exploration rate and low single well production. And medium and low rank coal CBM exploration is still in the primary stage.
Peng, LIU   +2 more
core   +1 more source

Effect of the benzene ring of the dispersant on the rheological characteristics of coal-water slurry: Experiments and theoretical calculations

open access: yesInternational 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

Dataset of low rank coal pyrolysis

open access: yes, 2022
This dataset of liquid fuel yield obtained from low rank coal pyrolysis to liquid fuel. And dataset of Proximate analysis, XRD data, FTIR data anad GC-MS data of low rank coal and pyrolysis products.THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ...
Mahfud, M (via Mendeley Data)
core   +1 more source

Pyrolysis characteristics and kinetics of Indian low rank coal using thermogravimetric analysis

open access: yesInternational 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

Characterization of Full Pore and Stress Compression Response of Reservoirs With Different Coal Ranks

open access: yesFrontiers 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

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