A growing percentage of the coal utilized is transformed first into electricity by thermal generating plants fueled by coal.
For coal gas life cycle, the coal is utilized for electricity production (Indian electricity mix) and also as the feedstock in coal gasifier.
Accordingly, in this study three proximate and ultimate analysis based nonlinear correlations have been developed for the prediction of HHV of coals by utilizing the computational intelligence (CI) based genetic programming (GP) formalism.
Therefore, sub-bituminous coal is utilized in blended combustion with bituminous coal.
Vertical wells are drilled into a coal seam, and internal pathways in the coal are utilized to direct the oxidant and product gas flow from the inlet to the outlet borehole.
From the convergence of the lines in Richmond, both eastbound and westbound coal trains utilized the Peninsula Subdivision through Williamsburg to service the coal piers in the East End of Newport News.
The conventional coal conversion technologies, such as liquefaction, gasification, combustion and carbonization, had been developed, and so far, the coal was utilized widely not only as the power energy, but also as resources to produce chemical liquids and gas fuels, whereas the coal extensive utilization induced a large quantity of serious effects on environment.
Large quantities of low-volatile coal are utilized in power plants throughout China.
For instance Deep Down, a film on mountaintop coal removal, utilizes a second life virtual mine that can be used as an educational tool in classrooms.
In Bubbling Fluidized Bed Combustors (BFBC) utilizing coal, efficient combustion requires that feed size of coal particles be in the maximum size range of 2 to 6 mm.
Based on time-lapse geophysical monitoring technology, the integrated analysis for water bearing and stratigraphic structure of strata in modern coal mining process utilizing seismic data, electrical data and ground penetrating radar data reaches the following conclusions: (1) In modern coal mining process, water bearing property of surface formations has self-healing trend.
