Here is more documentation concerning the fact that CO2 - whether arising from coal-fired power plants, or, in this additional example, again from Australia's Linc Energy, from the production of liquid fuel from coal - can be safely captured and profitably used.
An excerpt:
"Linc Energy has formed a Joint Venture (JV) with BioCleanCoal to develop a bioreactor which will convert CO2 into oxygen and solid biomass through a photosynthesis process. The aim is to permanently and safely remove CO2 from Linc Energy’s coal-to-liquids processes thereby preventing it from entering the atmosphere."
The "biomass" - algae, no doubt - can then be used for a variety of useful purposes, such as animal feed, or, as we've documented, even as additional raw material for a properly selected and designed coal-to-liquid conversion facility.