Demonstration of the Doosan Power Systems 40MWt OxyCoal™ combustion system

AbstractDoosan Power Systems has adopted an evolutionary approach to the design and implementation of OxyCoal™ technology combining well proven and commercially available components with state-of-the-art advances in technology, and is leading a number of UK Government supported collaborative projects that are developing oxyfuel combustion technology. The “Demonstration of an Oxyfuel Combustion System” OxyCoal 2 project aimed to demonstrate an oxyfuel combustion system of a type and size (40MWt) applicable to new build and retrofit advanced supercritical oxyfuel plant. Following conversion to oxyfuel firing, the Clean Combustion Test Facility (CCTF) became the world’s largest demonstration facility of an oxyfuel combustion system, and since the official opening on 24th July 2009 a test programme has been successfully undertaken to demonstrate the full-scale Doosan Power Systems first generation 40MWt OxyCoal™ burner on air and oxyfuel firing, achieving safe and stable operation across a wide operational envelope and CO2 flue gas concentrations in excess of 75% v/v dry, and up to 85% v/v dry. The OxyCoal 2 project is discussed in the paper and results from testing the full-scale 40MWt OxyCoal™ burner firing bituminous coal in both air and oxyfuel firing operation are presented