To heat that boiler, the damp, crumbly brown coal known as lignite — which is even more polluting than the harder black anthracite variety — burns in the presence of pure oxygen, a process known
as oxyfuel, releasing as waste both water vapor and that more notorious greenhouse gas, carbon dioxide (CO2).
Not exact matches
One,
as at the Schwarze Pumpe, involves the
oxyfuel process: burning coal in pure oxygen to produce a stream of CO2 - rich emissions.
Within four years, the use of
oxyfuels during winter had become compulsory in 35 cities across the US, even though they lifted petrol prices by
as much
as 15 cents a gallon.
One,
as at Schwarze Pumpe, involves the
oxyfuel process: burning coal in pure oxygen to produce a stream of CO2 - rich emissions.
We need to press on urgently with
oxyfuel and precombustion scrubbing, so
as to reduce the amount of gas and pollutants to be scrubbed,
as well
as save on the energy penalty of dealing with flue gas at atmospheric pressure.
In my previous comment on
oxyfuel for industry I didn't mention that it also allows carbon monoxide to burn faster and so be used not just in low temperature boilers but in high temperature furnaces and gas engines
as well.