Results 31 to 40 of about 1,389,592 (239)

Relationships among coking coals and related cokes characteristics: a statistical evaluation [PDF]

, 2018
From 61 coking coals, 36 coal blends were prepared. Using a pilot coke oven, cokes were prepared from both 61 coking coals (Type I cokes) and 36 coal blends (Type II cokes). Coals were characterized by 14 coal characteristics and cokes by Coke Reactivity
Baran, Pavel, Bartoňová, Lucie, Klika, Zdeněk, Kolomazník, Ivan, Serenčíšová, Jana   +4 more
core   +1 more source

THE HYDROGEN OF COAL. [PDF]

Journal of the American Chemical Society, 1907
n ...
openaire   +3 more sources

Adaptive intelligent coupling control of hydraulic support and working face system for 6−10 m super high mining in thick coal seams

Meitan kexue jishu
The reserves and production of thick coal seams account for half of the total reserves and production of raw coal in China. By combing the history of thick coal seam mining, we summarize the technology and equipment development practice of thick coal ...
Huijun HAN, Guofa WANG, Yongxiang XU, Jinhu ZHANG, Sheng LEI, Yanpeng LI   +5 more
doaj   +1 more source

Evaluation of Coal Bottom Ash for clay brick manufacturing: a preliminary study

Revista UIS Ingenierías, 2021
Currently, industrial, economic, and social growth has produced large amounts of solid waste, which harms the environment and human health. Coal bottom ash (CBA) is a waste produced by burning coal.
Janneth Torres-Agredo, Luisa Fernanda Mosquera-Idrobo, Patricia Paz-Villegas, Miguel Fernando Díaz-Huertas   +3 more
doaj  

Investigation of the performances of classic flotation oils and their mixture in the enrichment of Soma lignite coal by flotation

Journal of Applied Surfaces and Interfaces, 2022
In the present study, the effects of classical oils (kerosene, fuel oil) and their mixtures (25% Kerosene + 75% fuel oil; 50% Kerosene + 50% fuel oil; 75% Kerosene + 25% fuel oil) on the enrichment of Soma Lignite coal by flotation were investigated. The
Selma ŞİMŞEK, Turan KILINÇ, Yakup CEBECI   +2 more
doaj   +1 more source

Experimental study on mechanical and fracture-seepage characteristics of sandstone under hydro-mechanical coupling

Meikuang Anquan
In order to explore the fluid-solid coupling feedback characteristics of rock under the action of hydro-mechanical coupling, the triaxial and pore water pressure loading tests of saturated sandstone were carried out by using the rock mechanics ...
Jiawei LI, Yujun ZHANG, Jie XIAO, Youwei LI, Zhiwei ZHANG   +4 more
doaj   +1 more source

Characterization of Moroccan coal waste: valorization in the elaboration of the Portland clinker

MATEC Web of Conferences, 2014
Coal exploited in the mine of Jerada (northeast of Morocco) was accompanied by large quantities of waste. The purpose of this work is to characterize this waste with the aim of its use as a material for civil engineering.
Belkheiri D., Taibi M., Diouri A., Boukhari A., Aride A., Sassi O.   +5 more
doaj   +1 more source

Granny shows the way: Results from implementing an alternative fire-lighting method in Orange Farm

Journal of Energy in Southern Africa, 2017
High levels of air pollution caused by domestic coal burning create human health problems and unwarranted economic loss. The associated health cost is estimated at R1.2 billion per annum.
M Wentzel
doaj   +1 more source

Innovative ways to control dust and explosion safety of mine workings

Записки Горного института, 2021
Ensuring dust and explosion safety during underground coal mining is one of the most important tasks of industrial safety and labor protection departments.
Sergey B. Romanchenko, Yuri K. Naganovskiy, Anton V. Kornev   +2 more
doaj   +1 more source

Global Coal Risk Assessment: Data Analysis and Market Research [PDF]

, 2012
Coal-fired power plants are the largest contributor to the greenhouse gas emissions that cause climate change. In 2010, 61 countries produced coal and 104 countries consumed it.
Ailun Yang, Yiyun Cui
core