Sentence examples for coal could be from inspiring English sources
Coal could be exported to China.
I began to think about how a lump of coal could be part of a play.
Mr. Ross acknowledged the environmental issues, but argued that coal could be made clean.
Gas, a cleaner fossil fuel than coal, could be used as an interim measure.
It was also determined that 90.98% of coal could be replaced by oil sludge.
Later, it was discovered that locally mined block coal could be used directly for iron smelting.
Price said it would be "irresponsible" to commit to phase out coal by 2050 because clean coal technology could be available by then.
The results indicate that all the coal samples could be suitable for liquefaction; Shankodi-Jangwa coal may be suitable for hydro-gasification in the production of methane.
Freight prices for trains dropped as a result, which meant that Western coal -- which is much cleaner and cheaper than Eastern coal -- could be sold to markets far away, cutting into the market share of Appalachian mines.
The coal suspension could be flocculated better by kerosene compared to the other bridging liquids at natural pH value of coal.
"We've got 250 years of coal; it could be burned cleanly," he said.
