Results 21 to 30 of about 60,065 (235)

Particle size change of solid residue and flammability analysis of gaseous residue of lignite coal dust explosion

open access: yesGong-kuang zidonghua, 2021
The solid and gaseous residues of coal dust explosion are the physical evidence for analyzing the detonation site and propagation path and the basis for deploying rescue work.
ZHU Chao, WANG Hao
doaj   +1 more source

The system of tracking the position of the bucket excavator's wheel for prevention of risk situations [PDF]

open access: yes, 2018
For companies doing business in mining mineral deposits, ensuring safe work is one of the key tasks (Safety First!). One of the important trends in this area is prevention and endeavour to forestall risk situations. Risks need to be searched, technically
Kapica, Roman   +2 more
core   +1 more source

Lignite, thermally-modified and Ca/Mg-modified lignite for phosphate remediation [PDF]

open access: yesScience of The Total Environment, 2021
Aqueous phosphate uptake is needed to reduce global eutrophication. Negatively charged adsorbent surfaces usually give poor phosphate sorption. Chemically- and thermally-modified lignite (CTL) was prepared by impregnating low-cost lignite (RL) with Ca2+ and Mg2+ cations, basified with KOH (pH ̴ 13.9), followed by a 1 h 600 °C pyrolysis under nitrogen ...
Hasara, Samaraweera   +9 more
openaire   +2 more sources

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

Removal of Boron from aqueous solutions by adsorption using fly ash, zeolite and demineralized lignite [PDF]

open access: yes, 2009
In the present study for the purpose of removal of boron from water by adsorption using adsorbents like fly ash, natural zeolite and demineralized lignite was investigated.
Yuksel, Seren   +3 more
core   +2 more sources

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

Thermal desorption of mercury from lignite in a high-temperature furnace and in power plant mills

open access: yesInternational Journal of Coal Science & Technology, 2022
In this article, the binding forms of two lignite samples are determined by thermal desorption using a high-temperature furnace. Each mercury compound, such as HgCl2, has a specific binding strength whose decomposition requires a certain thermal energy ...
Anne-Christin Kropp   +2 more
doaj   +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

Economic Resilience of German Lignite Regions in Transition [PDF]

open access: yes, 2019
This paper recalls the development of the German lignite regions Rhineland and Lusatia since 1945 to allow for a better understanding of their situation in 2019. We analyze their economic resilience, defined as adaptive capacity, using Holling’s adaptive
Oei, Pao-Yu   +3 more
core   +1 more source

Palynostratigraphy and palynofacies of the early Eocene Gurha lignite mine, Rajasthan, India [PDF]

open access: yes, 2016
A 105 m early Eocene section exposed in the Gurha mine in the Nagaur-Ganganagar Basin, Rajasthan, India, archiving remains of equatorial vegetation at a time of extreme global warmth and close to the onset of the India-Eurasia collision, is investigated ...
Aggarwal   +50 more
core   +1 more source

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