Results 21 to 30 of about 18,367 (186)

Study and Numerical Simulation on Explosion Propagation Characteristics of Lignite Dust [PDF]

open access: yesE3S Web of Conferences, 2020
In order to reveal the explosion propagation law of lignite dust in 20L spherical explosion test device, the dust diffusion behavior and explosion propagation characteristics of lignite were studied by experiment and numerical simulation. The propagation
Pang Zizheng, Zhu Shunbing, He Yanru
doaj   +1 more source

Grade Level of Lignite Coal datas in the different areas with Decison Tree, Random Forest, and Discriminant Analysis Methods

open access: yesApplied Artificial Intelligence, 2020
Lignite is one of the most important energy sources. An important problem in the economic and technical evaluation of lignite reserves is to measure lignite quality.
Sevcan Aytaç Korkmaz
doaj   +1 more source

The lignite of tracey [PDF]

open access: yesProceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character, 1910
Abstract In 1863, Heer and Pengelly published in the ‘Phil. Trans.’ an account of these lignite-beds and their flora. Heer classed the lignite as Lower Miocene, considering it equivalent to the Aquitanian of Prance and to the Hamstead Beds of the Isle of Wight.
Clement Reid, Eleanor M. Reid
openaire   +1 more source

Elemental analysis of lignite.

open access: yes, 2023
Mastering the molecular structure of coal is important for the effective utilization of coal. For a detailed study of the microstructural characteristics of Tiebei lignite, its molecular structure was characterized by elemental analysis, solid 13C ...
Jinzhang Jia (9647878)   +5 more
core   +1 more source

XPS spectrum of lignite.

open access: yes, 2023
Mastering the molecular structure of coal is important for the effective utilization of coal. For a detailed study of the microstructural characteristics of Tiebei lignite, its molecular structure was characterized by elemental analysis, solid 13C ...
Jinzhang Jia (9647878)   +5 more
core   +1 more source

Adsorption of Pb(II) cation from aqueous solutions by acid modified low-rank coal: An experimental study and simulation

open access: yesWater Science and Technology, 2021
An acid modified approach to enhance the adsorption capacity of low-rank coal (lignite) is proposed to reduce the risk of heavy metal ions within the wastewater.
Penghui Wang   +3 more
doaj   +1 more source

XRD spectrum of lignite.

open access: yes, 2023
Mastering the molecular structure of coal is important for the effective utilization of coal. For a detailed study of the microstructural characteristics of Tiebei lignite, its molecular structure was characterized by elemental analysis, solid 13C ...
Jinzhang Jia (9647878)   +5 more
core   +1 more source

Spontaneous Combustion in Coal Stockpiles with Different Particle Sizes

open access: yesInternational Journal of Economic and Environment Geology
In this study, the spontaneous combustion behavior of stocks created with coals of 3 different particlesizes (0-18/18-28/25-100 mm) was examined for 2 months and the results were analyzed.
Arif Çelik   +3 more
doaj   +1 more source

Synergism between lignite and high-sulfur petroleum coke in CO2 gasification

open access: yesGreen Processing and Synthesis, 2023
High-sulfur petroleum coke (PC) as solid waste has high treatment cost. Gasification technology can utilize PC and lignite for co-gasification. Organically combining the two is the key to expanding the adaptability of gasification raw materials.
Mao Lirui   +3 more
doaj   +1 more source

Aspects of structural features in lignite and lignite humic acids

open access: yesFuel Processing Technology, 2006
Abstract Structural features of a South Moravian lignite and its humic acid (HA) fraction were studied by means of UV–vis, 1 H and solid-state 13 C NMR, and FT-IR spectroscopy in addition to basic elemental analyses. The structural differences between the original lignite and its HA-type fraction were relatively minor, and their unambiguous ...
J. Peuravuori   +2 more
openaire   +1 more source

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