A sorbent for the capture of carbon dioxide from a gas stream is provided, the sorbent containing calcium oxide (CaO) and at least one refractory dopant having a Tammann temperature greater than about 530.degree. C., wherein the refractory dopant enhances resistance to sintering, thereby conserving performance of the sorbent at temperatures of at least about 530.degree. C. Also provided are doped CaO sorbents for the capture of carbon dioxide in the presence of SO.sub.2.
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
The presently disclosed invention and its respective embodiments were made with U.S. Government support under Grant No. DE-FG26-03NT41810, awarded by the Department of Energy. The government has certain rights in this invention.