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Study of thermal decomposition of ignition temperature of bagasse, coal and their blends
(2010)
In Brazil, due to its availability, sugar cane bagasse has a high potential for power generation. The knowledge of ignition behavior, as well as the knowledge of the chemical kinetics, in of fuels combustion process is ...
Emissions of NO(x) and SO(2) from Coals of Various Ranks, Bagasse, and Coal-Bagasse Blends Burning in O(2)/N(2) and O(2)/CO(2) Environments
(AMER CHEMICAL SOC, 2011)
Oxy-coal combustion is a viable technology, for new and existing coal-fired power plants, as it facilitates carbon capture and, thereby, can mitigate climate change. Pulverized coals of various ranks, biomass, and their ...
Radionuclides (222Rn, 226Ra, 234U, and 238U) Release in Natural Waters Affected by Coal Mining Activities in Southern Brazil
(2017-01-01)
Water quality was evaluated in a coal mining area in the city of Figueira, Paraná State, Brazil, where uranium was associated with the coal deposit. Upstream the mine, groundwaters were more acid and some elements and ...
Natural radionuclides in plants, soils and sediments affected by U-rich coal mining activities in Brazil
(Elsevier B.V., 2017-10-01)
Mining activities can increase the mobility of metals by accelerating the dissolution and leaching of minerals from the rocks and tailing piles to the environment and, consequently, their availability for plants and ...
Natural radionuclides in plants, soils and sediments affected by U-rich coal mining activities in Brazil
(2017-10-01)
Mining activities can increase the mobility of metals by accelerating the dissolution and leaching of minerals from the rocks and tailing piles to the environment and, consequently, their availability for plants and ...
Abordagem quantitativa na avaliacao do deposito de carvao de cerquilho - SP
(1988-12-01)
This paper deals with an integrated study concerning the evaluation of the coal deposit at Cerquilho (Sao Paulo State) in the upper part of the Tubarao Group. Palaeogeographical studies from other authors describe the ...
CFD Simulations of coal gasification in a fluidized bed
(Societé Française de Génie de Procédés, 2013-10)
In the world there is a trend towards new forms of energy, generated mainly by the progressively increment in demand for non-renewable resources, which are becoming more expensive and scarce. This has motivated countries ...
Effect of a low rank coal inoculated with coal solubilizing bacteria for the rehabilitation of a saline-sodic soil in field conditions
(Universidad Nacional de Colombia - Sede Medellín - Facultad de Ciencias Agrarias, 2017-09-01)
The aim of this research was to assessing changes on some chemical, biological and physical properties of a Salidic Calciustolls, in response enhanced by treatment with low rank coal (LRC) and coal solubilizing bacteria ...
NO reduction with C3H8 on Co/Al2O3 catalyst. Effect of O2 concentration
(Springer, 2003-12)
The selective catalytic reduction (SCR) of NO by propane in excess oxygen-containing gas mixture was studied on Co/Al2O3 catalyst. The oxygen concentration is very important for the reaction. The NO conversion to N2 without ...
Evaluation of parameters to determine the degree of coal dust explosibility
(Universidad Nacional de Colombia - Sede Medellín - Facultad de Minas, 2014-07-01)
Coal dust is highly explosive and caused dozens of victims in Colombia. In this research the most important and direct influence on coal dust, especially those that cause combustion and explosion inside the mine factors ...