Commercialization of oxy-coal combustion: Applying results of a large 30MWth pilot project

Mercury measurement and control in a CO2-enriched flue gas

“…Approximately 30% O 2 is needed to maintain adiabatic flame temperature similar to conventional air combustion. Heat transfer in an oxycombustion system is expected to be different from air-blown combustion because of changed emissivity and heat capacity of flue gas (Wall, 2007), although pilotscale testing data indicate that, by adjusting burner hardware and oxygen input, combustion performance comparable to air firing can be obtained, while heat absorption in the boiler and convection pass is maintained similar to air-blown combustion (McCauley et al, 2009).…”

Binding of SO3 to fly ash components: CaO, MgO, Na2O and K2O

“…Emissions of nitrogen oxides (NO x ) and sulfur oxides (SO x ) are observed to decrease during oxy-combustion of coal [3,4,[6][7][8][9]. While most of the studies in the literature report a reduction in SO 2 emissions when switched to oxy-combustion [3,4,[6][7][8][9], contradictory information exists where the SO 2 emissions remain the same [10][11][12]. SO x emissions in oxy-coal combustion can be reduced comparing to air combustion due to high concentrations of sulfur trioxide (SO 3 ) in the oxy-combustion flue gas resulting in sulfur retention on fly ash and ash deposits in the furnace [3,4,13].…”

An analysis of the investment risk related to the integration of a supercritical coal-fired combined heat and power plant with an absorption installation for CO 2 separation

“…The initiative proposed in the document is to focus on the requirements of the entire CCS system, including its efficiency, safety and public endorsement. Currently, the integration of power units with CO 2 separation installations have a pilot character [5][6][7][8]. In Poland, the research conducted within the Strategic Research Programme: Advanced technologies for obtaining energy: Development of a technology for highly efficient zero-emission coal-fired power units integrated with CO 2 capture on a mobile pilot installation, which is now an element of the Łaziska power plant process line, may serve as an example [9].…”