Results 81 to 90 of about 201,364 (273)
Penggunaan Bahan Bakar Alternatif dalam Industri Semen
Mimbar, 2009 One of the various ways to utilize coal ash from either industrial- or power generation (utility) boilers in form of bottom ash and fly ash is brickmaking.
Stefano Munir
doaj
Natural Gas Industry BThe vertical heterogeneity of the pore structure in deep coal seams with varying ash yields is a key control for coalbed methane storage and producibility; however, its specific impact on gas adsorption is not clearly defined.
Runye Han +7 more
doaj +1 more source
Enrichment of carbon recovery of high ash coal fines using air fluidized vibratory deck separator
International Journal of Coal Science & Technology, 2017 Coal is primarily beneficiated by wet gravity methods. The wet processing of coal is an efficient practice. However, it introduces the moisture in the range of 6%–15%, depending upon the size of coal which is as detrimental as ash content to the heating ...
Laxmikanta Sahu, Shobhana Dey
doaj +1 more source
Factors affecting cleanup of exhaust gases from a pressurized, fluidized-bed coal combustor [PDF]
The cleanup of effluent gases from the fluidized-bed combustion of coal is examined. Testing conditions include the type and feed rate of the coal and the sulfur sorbent, the coal-sorbent ratio, the coal-combustion air ratio, the depth of the reactor ...
Kobak, J. A., Rollbuhler, R. J.
core +1 more source
The investigation of heavy metal ion content in rock and coal production [PDF]
, 2013 Приведено олгляд методів визначення вмісту важких металів у вугіллі та продуктах вуглевидобутку. Виявлена доцільність використання НВЧ-поля та зниження температури озолення проб для підвищення точності визначення та зниження витрат часу на проведення ...
Chudaeva, G.V., Nazimko, E.I.
core
Monitoring mercury across the National Wildlife Refuge System using a biosentinel approach
The Journal of Wildlife Management, EarlyView.We measured mercury concentrations in 1,356 dragonfly larvae collected from 30 National Wildlife Refuges across the United States and found wide variability among refuges, spanning the full range reported for other protected lands. Using a management‐focused mercury impairment index, 80% of refuges contained sites classified as moderate or higher risk.
Jennifer L. Wilkening +8 more
wiley +1 more source
This lesson provides an introduction to the use of coal as an energy source. Topics include the history of coal usage, applications of coal as an energy source, and major suppliers of coal (the United States).
John Pratte
core
Land Degradation &Development, EarlyView.ABSTRACT A stable vegetation cover on given habitat conditions can be one of the possible requirements for post‐mining sites, as it can prevent erosion and dustiness of these anthropogenic surfaces and bring several practical future benefits, such as biomass production and microclimate improvement.
Tomáš Matys Grygar +5 more
wiley +1 more source
Karakteristik Briket Biocoal Dengan Penambahan Sekam Padi Dan Wax [PDF]
, 2011 Biocoal made by mixing Sub-Bituminous Tanjung Enim coal with rice skin biomass to make biocoal briquette that will have calorific value suitable for domestic consumption and also have a quicker initial burning time that has been a problem in applying ...
Dewi, R. M. (Retno) +2 more
core
Polymer Composites, EarlyView.Biocomposites produced with agro‐industrial waste from castor hulls and pinewood bonded with urea‐formaldehyde adhesive, intended for application as thermal insulation in buildings. ABSTRACT The production of composite particleboards with agricultural waste has been the focus of many studies that aim to address environmental problems due to waste ...
Thamirys Andrade Lopes +7 more
wiley +1 more source