Supercritical Coal-fired Power Plant Research Articles

Integration of CO 2 capture unit using single- and blended-amines into supercritical coal-fired power plants: Implications for emission and energy management

This work provides the essential information and approaches for integration of carbon dioxide (CO 2) capture units into power plants, particularly the supercritical type, so that energy utilization and CO 2 emissions can be well managed in the subject power plants. An in-house model, developed at the University of Regina, Canada, was successfully used for simulating a 500 MW supercritical coal-fired power plant with a post-combustion CO 2 capture unit. The simulations enabled sensitivity and parametric study of the net efficiency of the power plant, the coal consumption rate, and the amounts of CO 2 captured and avoided. The parameters of interest include CO 2 capture efficiency, type of coal, flue gas delivery scheme, type of amine used in the capture unit, and steam pressure supplied to the capture unit for solvent regeneration. The results show that the advancement of MEA-based CO 2 capture units through uses of blended monoethanolamine–methyldiethanolamine (MEA–MDEA) and split flow configuration can potentially make the integration of power plant and CO 2 capture unit less energy intensive. Despite the increase in energy penalty, it may be worth capturing CO 2 at a higher efficiency to achieve greater CO 2 emissions avoided. The flue gas delivery scheme and the steam pressure drawn from the power plant to the CO 2 capture unit should be considered for process integration.

Materials for ultra supercritical coal-fired power plants : Viswanathan, R. et al. Proceedings of the International Technical Conference on Coal Utilization & Fuel Systems, 2002, 1, (27), 257–272

Materials for ultra supercritical coal-fired power plants : Viswanathan, R. et al. Proceedings of the International Technical Conference on Coal Utilization & Fuel Systems, 2002, 1, (27), 257–272

Materials for ultra supercritical coal-fired power plants : Viswanathan, R. et al. Proceedings of the International Technical Conference on Coal Utilization & Fuel Systems, 2002, 1, (27), 257–272

Materials for ultra supercritical coal-fired power plants : Viswanathan, R. et al. Proceedings of the International Technical Conference on Coal Utilization & Fuel Systems, 2002, 1, (27), 257–272