Vattenfall, a Swedish firm, is backing a technology called oxyfuel combustion, which burns coal in a nitrogen - free atmosphere. (discovermagazine.com)
The CCS will be built on the so - called oxyfuel technique, which Vattenfall is also using at its CCS demonstration pilot at the Scwarze Pumpe plant. (treehugger.com)
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. (newscientist.com)