Results from Lab and Field Testing of Novel CO_2 Sorbents for Existing Coal-Fired Power Plants

摘要

Technologies for carbon capture from existing coal-fired utilities are rapidly being developed. Solid sorbents have many potential benefits compared to other technologies for CO_2 capture, such as ease of handling, greater capacity, reduced energy for regeneration, etc. ADA-ES has completed lab-scale testing (simulated and actual flue gas) of solid sorbents designed to capture CO_2. The traits tested included the CO_2 capacity, regeneration potential, reactivity to other flue gas constituents, and energy necessary for regeneration. CO_2 capacities ranged from <1 wt% to> 6 wt%. Most sorbents regenerated completely and were suited for multiple-cycle use. This paper will compare the sorption/regeneration characteristics for several different sorbents and discuss the potential of the technology.