Sentences with phrase «store coal combustion»

Furthermore, the December coal ash spill in Tennessee makes it clear that there is no adequate means of safely storing coal combustion waste.

Not exact matches

Until advanced coal - combustion technologies become widely available that allow CO2 to be captured and stored safely underground, the shift to coal is bad news for climate change because coal plants usually emit about twice the CO2 per kilowatt - hour of electricity that gas plants do.

The billions of tons of coal combustion waste produced by power plants needs to be stored somewhere, often in waste sites that are inadequately engineered to avoid dangerous spills or leaching of hazardous chemicals into groundwater supplies.

But there's a new coal - based power generation technology, Integrated Gasification Combined Cycle, or IGCC, which allows CCS systems in new plants to more efficiently capture and store CO2 because the CO2 can be removed before combustion.

Given that the models assume that future coal combustion will be significantly curtailed, the alternative cement solution relies on storing fly ash for reuse, diverting it from other uses, and mining fly ash that was previously deposited in landfill.

Zero - emission technology most typically involved the vision of coal gasification, in which pollutants would be separated out of the emissions stream prior to combustion, together with carbon capture and sequestration, in which carbon dioxide would be liquified and stored permanently underground.

Big Coal says that capturing and storing CO2 from these new coal plants is a slam - dunk technology — but one that's not quite ready for prime time yet (capturing CO2 from existing combustion coal plants, while possible, is expensive and cuts the electricity output of the plant by as much as 30 perceCoal says that capturing and storing CO2 from these new coal plants is a slam - dunk technology — but one that's not quite ready for prime time yet (capturing CO2 from existing combustion coal plants, while possible, is expensive and cuts the electricity output of the plant by as much as 30 percecoal plants is a slam - dunk technology — but one that's not quite ready for prime time yet (capturing CO2 from existing combustion coal plants, while possible, is expensive and cuts the electricity output of the plant by as much as 30 percecoal plants, while possible, is expensive and cuts the electricity output of the plant by as much as 30 percent).