Results 51 to 60 of about 1,389,592 (239)

MATHEMATICAL MODELING OF COAL AND SEWAGE SLUDGE CO-CONVERSION USING DOWNDRAFT GASIFER

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2019
The relevance of the study is caused by the need to utilize municipal waste. The utilization of combustible waste, such as sewage sludge, can be combined with energy production for small-scale consumers.
Igor G. Donskoy
doaj   +1 more source

The evolution law of pore characteristics and pore bulk modulus for overpressured coal-bearing formation in Yuwang Minefield

open access: yes矿业科学学报, 2022
The abnormal high pressure in coal and coalbed methane exploitation will bring danger to exploitation, thus threatening the safety of personnel and property.Six coal samples collected from Yuwang colliery in Yunnan province were analyzed by CT scanning ...
Che Yuyan   +4 more
doaj   +1 more source

How Responsive Are EU Coal-Burning Plants to Changes in Energy Prices? [PDF]

open access: yes, 2015
The European Union (EU) Emissions Trading System (ETS) has implicitly made it more expensive to burn coal relative to natural gas because coal has a higher carbon content.
Meyer, Andrew G., Pac, Grzegorz
core   +1 more source

An approach to the use of fixed carbon-volatile matter graph [PDF]

open access: yes, 1986
The use of the fixed carbon-volatile matter (FC-VM) graph for quick calculations of proximate analysis data, as well as for simple presentation of coal classification is illustrated. From the position of the VM and FC values of a coal on the graph (on an
Jankes, Goran, Radovanović, Milan
core   +2 more sources

Annals of Coal Mining and the Coal Trade [PDF]

open access: yesNature, 1899
THE scientific study of any art or industry demands, almost as a matter of necessity, that its history should not be neglected, for it is only when its mode of evolution has been clearly traced that the principles upon which it depends can be thoroughly understood.
openaire   +3 more sources

Financial Risks of Investments in Coal [PDF]

open access: yes, 2011
Analyzes the regulatory, commodity, and construction risks of investing in coal mining and coal-fired power plants. Examines industry analysts' consensus on viable alternatives to coal, including natural gas, solar, wind, and energy ...
Amy Galland, Leslie Lowe, Tom Sanzillo
core  

Continuous coal processing method [PDF]

open access: yes, 1980
A coal pump is provided in which solid coal is heated in the barrel of an extruder under pressure to a temperature at which the coal assumes plastic properties.
Ryason, P. R.
core   +1 more source

Ecological aspects of managing the stressed- deformed state of the mountain massif during the development of multiple coal layers [PDF]

open access: yes, 2018
The ecological consequences of long-term development of coal deposits for the components of the environment, buildings, communications and infrastructure facilities have been analysed.
Borysovska, Olena   +11 more
core   +1 more source

Annals of Coal Mining and the Coal Trade [PDF]

open access: yesNature, 1905
IN a former volume (noticed in NATURE, vol. lix. p. 337) the author carried his annals of coal I mining down to the period of the Select Committee of the House of Commons on Accidents in Mines in 1834. He now continues the subject to the passing of the Coal Mines Inspection Act of 1850, and to the establishment of the Royal School of Mines. This volume,
openaire   +3 more sources

Characterization of coal products from high temperature processing of Usibelli low-rank coals [PDF]

open access: yes, 1991
This research project was conducted in association with Gilbert/Commonwealth Inc. as part of an overall techno-economic assessment of high temperature drying of low-rank coals. This report discusses the characteristics of the dried/pyrolyzed products of
Li, YuFu   +3 more
core  

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