Technology options for zero emissions gas turbine power generation

As a full service provider of power generation plants and equipment, ALSTOM Power (hereafter called ALSTOM), is aware of the present scientific concerns regarding greenhouse gas emissions and the role of fossil fuel use for power generation. ALSTOM R&D laboratories run various programs aimed at finding options that reduce or avoid emissions through: - high efficiency power generation equipment with the most modern technologies to utilize fossil fuels with the lowest possible emissions, - technologies to remove and sequester CO 2 created in power plants in an environmentally and economically favorable manner, and - technologies to utilize biomass fuel as a method for CO 2 neutral power generation. In this paper, an overview of on-going CO 2 mitigation activities is addressed. Energy efficiency improvements for both new and existing power plants are briefly reviewed for natural gas. The status of development of ALSTOM technology for biomass in industrial gas turbines is presented. Additionally, combustion in O 2 /CO 2 atmospheres including different novel power generation cycles using pure or enriched oxygen are discussed. Conclusions are drawn regarding efficiency, energy consumption and technical feasibility.