Results 11 to 20 of about 346,856 (155)

Biodesulphurisation of coal [PDF]

, 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   +7 more sources

The Significance of Hydrophobicity for the Water Retention Properties of Sand and Coal

Applied Sciences, 2021
For mine wastes such as coal tailings, management of these materials requires complex geotechnical engineering that uses many soil properties, such as water retention.
Andrew Vidler, Olivier Buzzi, Stephen Fityus   +2 more
doaj   +1 more source

Innovative Apparatus for Testing Filtration, Sorption and CO₂/CH₄ Exchange Sorption Processes Under Isobaric Conditions on Sorbent Subjected to Confining Pressure in Terms of Laboratory Tests of CO₂-ECBM Technology

Sensors, 2020
In recent years, the interest in the sorption properties of coal in conditions corresponding to in situ has increased due to the continuous development of research on CO2-ECBM (Enhanced Coal Bed Methane recovery) technology.
Mateusz Kudasik, Norbert Skoczylas, Anna Pajdak   +2 more
doaj   +1 more source

Selected Aspects of Combustion Optimization of Coal in Power Plants

Energies, 2020
Growing ecological standards force the implementation of solutions that will contribute to reducing greenhouse gas (GHG) emissions to the atmosphere. This is particularly important in Poland, whose energy system is almost 80% based on coal.
Maciej Dzikuć, Piotr Kuryło, Rafał Dudziak, Szymon Szufa, Maria Dzikuć, Karolina Godzisz   +5 more
doaj   +1 more source

Identifying contaminants of coal-derived inertinite in charcoal briquettes: Preliminary findings of microscopic analysis [PDF]

Journal of Water and Land Development
Despite the widespread popularity of charcoal-based grilling fuels, extensive studies have highlighted various pollutants linked to their production and combustion, posing potential risks to human health and the environment.
Zbigniew Jelonek, Iwona Jelonek
doaj   +1 more source

Research progress on preparation and physicochemical properties of coal-based graphene quantum dots

Meitan kexue jishu, 2023
Graphene quantum dots (GQDs) have attracted great research interest due to their remarkable quantum confinement and edge effects. In addition to exhibiting stable photoluminescence, it also has many advantages such as low cytotoxicity, good solubility ...
Ruifeng MU, Shaoqing WANG, Yungang ZHAO, Xiaoling WANG, Jidun SHA, Kang LI   +5 more
doaj   +1 more source

Characteristics and mechanism of strong dynamic load mine pressure in large mining height full-mechanized caving face with multiple thick and hard roof

Meitan xuebao
In view of the problems of strong mine pressure such as rapid shrinkage of hydraulic support column and easy support crushing in working face under the fully mechanized caving face with large mining height in multi-layer thick and hard roof of extra ...
Zhen ZHANG, Zhizeng HUANG, GANG XU, Xiaogang LIU, Qianjin LIU, Tielin ZHAO, Xingyu LIN   +6 more
doaj   +1 more source

MANAGEMENT OF SUSTEINABLE DEVELOPMENT AND ECONOMIC REVIVAL OF MINING AREAS AFFECTED BY RESTRUCTURING [PDF]

Analele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2013
Sustainable development of an area or region, as a process of change, of economic and jobs development, entails, in the context of what it summarizes through the dualism: ecosystem-ecoeficiency, community concern over the current and future situation of ...
Valeriu Pleşea, Marius Eremia Vlaicu Popa, Ciprian Nimară   +2 more
doaj  

Dynamic evolution mechanism of water-bearing coal permeability and water film under stress

Meitan kexue jishu, 2023
To explore coal permeability evolution mechanism under the comprehensive action of multiple factors including stress - adsorption - water and slippage effect, considering the coal deformation induced by stress - adsorption, the expression of water film ...
Shulei DUAN, Bobo LI, Qiaoyun CHENG, Haosheng SONG   +3 more
doaj   +1 more source

Response characteristics of mining-induced overburden strata under different degrees of regional fracturing on the roof

Meitan xuebao
To obtain the activity patterns and response characteristics of the overburden strata under different fracturing degrees of the roof, and thereby provide a reference for preventing and controlling roof-dominated rock burst through regional fracturing ...
Jianhong WU, Junfeng PAN, Meihua FENG, Chuang LU, Jiaming GAO, Yaodong YAN, Hongyuan MA   +6 more
doaj   +1 more source