Patent ID: 8632627

Claim:
A system, comprising: a carbon dioxide dehydration system, comprising: a desiccant transporter configured to transport a desiccant chamber with solid desiccant from a first dehydration section to a first regeneration section; a CO 2 path extending through the first dehydration section, wherein the solid desiccant is configured to collect moisture from CO 2 in the CO 2 path; a gas path extending through the first regeneration section, wherein the solid desiccant is configured to release the moisture into a gas in the gas path to regenerate the solid desiccant, and the CO 2 path and the gas path are independent from one another; and a controller configured to use instructions to depressurize the desiccant chamber in the first regeneration section with the gas at a first temperature and a first pressure, wherein the controller is configured to execute instructions to repressurize the desiccant chamber in the first regeneration section with the gas at a second temperature and a second pressure, the controller is configured to execute instructions sweeping the gas from the desiccant chamber in the first regeneration section with CO 2 , the first temperature is greater than the second temperature, and the first pressure is less than the second pressure.