Sentence examples for coal ground from inspiring English sources
Therefore, a volume-based fractal model is proposed to characterize PSD of coal ground in a high-pressure waterjet mill coupled with a cavitation cell in this research.
Samples containing As below 1 wt% were prepared as follows: the arsenian pyrite sample was hand picked from a pyrite-rich coal, ground, and mixed with mineral oil to minimize oxidation.
This would be PetroChina's first stake in the coalbed methane sector in Australia, an industry that has attracted huge investments in recent years from firms like ConocoPhillips, BG Group of Britain and Shell itself, which already owns part of Arrow's coalbed grounds.
Even as coal loses ground to gas, some coal-producing regions — particularly Wyoming and Illinois — still have jobs.
The amount of initial gas release after the destruction of coal by ground stress relates closely to the outburst danger.
This chapter summarizes recent advances in coal mine ground control technology and practice from the operator's perspective.
Results are presented on the emissions of semivolatile polycyclic aromatic hydrocarbons (PAH) from the combustion of a pulverized bituminous coal and ground waste automobile tires.
Below the coal seam, ground stresses will gradually get closer to the virgin stresses.
A 5.00 g coal sample, ground to pass a 425 μm sieve, was compacted around the rabble arm of a stirrer in a metal crucible with the help of the preparatory facility.
He projected that UCG can supply power 27percentt cheaper than plants such as GreenGen that gasify coal above-ground.
"The day has to come when we can remove coal from the ground and return carbon dioxide" to the ground, Sen. Richard J. Durbin (D-Ill). said at the official groundbreaking Monday of ADM's project.
