Carbon Dioxide → Carbon Dioxide

In another aspect, the present invention provides a process for reducing the amount of carbon dioxide in a carbon dioxide-containing gas stream. The process includes introducing the carbon dioxide-containing gas stream and a carbonate-containing solution into a chamber; contacting the carbon dioxide-containing gas stream and the carbonate-containing solution in the chamber such that at least a portion of carbon dioxide from the carbon dioxide-containing gas stream is absorbed in the carbonate-containing solution; converting at least a portion of the carbon dioxide and the carbonate in the carbonate-containing solution to bicarbonate to produce a carbon dioxide-, bicarbonate-, carbonate-containing solution; transferring at least a portion of heat from the carbon dioxide-, bicarbonate-, carbonate-containing solution exiting the chamber to the carbonate-containing solution such that the temperature of the chamber is from about 50° C. to about 90° C.; precipitating a bicarbonate-containing solid out of the carbon dioxide-, bicarbonate-, carbonate-containing solution; concentrating the bicarbonate-containing solid to a bicarbonate-containing slurry; and stripping the bicarbonate-containing slurry to produce a carbon dioxide product.

1. customIn another aspect, the present invention provides a process
2. additioncontaining gas stream
3. additioncontaining gas stream
4. additioncontaining gas stream
5. additioncontaining gas stream
6. customis absorbed in the carbonate-
7. additioncontaining solution
8. additionthe carbonate in the carbonate-containing solution to bicarbonate

ORD record

ord-98380220f4064533926f6599f253753c

Source dataset

uspto-grants-2013_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08512445B2