Abstract: Method for making a slurry of a pulverized solid in liquid or supercritical carbon dioxide. The method includes making a water-pulverized solid slurry at ambient pressure and pressurizing the water-pulverized solid slurry to a high pressure. The pressurized water-pulverized solid slurry is mixed in a pressurized chamber with liquid or supercritical CO2 to form a CO2-pulverized solid slurry.

Abstract: Method for making a slurry of a pulverized solid in liquid or supercritical carbon dioxide. The method includes making a water-pulverized solid slurry at ambient pressure and pressurizing the water-pulverized solid slurry to a high pressure. The pressurized water-pulverized solid slurry is mixed in a pressurized chamber with liquid or supercritical CO2 to form a CO2˜pulverized solid slurry.

Abstract: Systems and methods for the purification of carbon dioxide are provided. Also described are systems and methods of efficiently producing power using novel heat integration techniques, while producing carbon dioxide that is sufficiently pure to be sequestered. In some embodiments, a carbon dioxide-containing fluid stream is purified by removing NOx and SOx, using a single reactive absorption column. A carbon dioxide-containing fluid stream can be purified by removing one or more other contaminants (e.g., a non-condensable gas), in some instances.