Abstract: In some implementations, a method for dehydrating carbon dioxide includes identifying a stream including at least carbon dioxide and water. At least a portion of the stream is dehydrated using an initial lean sorbent including glycerol and a polyhydric alcohol to generate dry carbon dioxide stream and rich sorbent including water. The polyhydric alcohol reduces an amount of glycerol lost to the dry carbon dioxide stream during dehydration. This process may result in the beneficial reduction in the amount of glycerol that leaves the system with the dry carbon dioxide. The dry carbon dioxide and the rich sorbent are separated. The glycerol is recycled by dehydrating the rich sorbent to produce recycled lean sorbent.