Costs of CO2 Capture Technologies in Coal Fired Power and Hydrogen Plants

Abstract

In recent years The International Energy Agency Greenhouse Gas R&D Programme (IEAGHG) has undertaken a series of studies on the performance and costs of coal-fired power and hydrogen plants with CO2 capture, based on the three leading technology options. Following the significant technological advances and the substantial increase in estimated plant costs, IEAGHG has recently undertaken a wholly new study, covering the following plant types: • Supercritical pulverised coal (SC-PC) power plant without CO2 capture (reference); • SC-PC power plant using oxy-combustion; • SC-PC power plant with post-combustion capture based on a high-efficiency solvent washing process; • Integrated Gasification Combined Cycle plant with pre-combustion capture using solvent scrubbing; • Gasification for combined production of hydrogen (via PSA) and power. With the support of the leading technology suppliers, the study focuses on various process optimisation alternatives. Capital costs, levelised costs of electricity generation and costs of CO2 emissions avoidance of the different power plant alternatives are estimated, including sensitivities to main financial parameters.