CO2 Capture in Solid Form - An Overview of the SkyMine- Process

Abstract

Climate change is a central issue in domestic and international policy, affecting trade, environment, and energy supply strategy. The predominant contributor to climate change is anthropogenic emissions of carbon dioxide (CO2). Retrofit table processes that capture CO2 from flue gas of coal burning power plants, cement plants and steel plants can lead to significant reductions in CO2 emissions and help reverse climate change. The skyMinetrade process relies on well-understood chemical reactions and unit operations to capture and mineralize CO2 at a competitive energy penalty. The process includes the production of marketable chemicals such as hydrogen, chlorine, and sodium bicarbonate. The process also prevents the release of the acid gases associated with the burning of coal, regulated heavy metals [e.g. mercury], and other not yet regulated heavy metals [e.g. selenium, chromium]. The combination of remediating CO2, acid gases, and metals yields an all-in-one cost effective, profitable solution. The chemistry, thermodynamics, material balance and financials for the skyMinetrade process is presented and the field results from a pilot demonstration plant are reviewed.