公开(公告)号：US20240017202A1

公开(公告)日：2024-01-18

申请号：US18255082

申请日：2021-12-08

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY

Inventor： John Cirucci ,  Klaus Lackner

IPC: B01D53/04 ,  B01D53/26

CPC classification number: B01D53/0454 ,  B01D53/0438 ,  B01D53/0446 ,  B01D53/261 ,  B01D2253/108 ,  B01D2257/504 ,  B01D2258/06 ,  B01D2259/40088

Abstract: A device, method, and system for CO2 capture is disclosed. The method includes receiving a process vapor including water and CO2 into a vessel at an intake pressure, the vessel having a desiccant and a CO2 sorbent material. The method includes passing the process vapor through the desiccant and sorbent, the desiccant absorbing the water resulting in a dry vapor, the sorbent absorbing CO2 from the dry vapor resulting in a CO2-lean dry vapor. The method includes discontinuing the process vapor, desorbing the water from the desiccant by at least one of reducing pressure downstream from the desiccant to below the intake pressure and increasing a temperature of the desiccant, desorbing the CO2 from the sorbent by placing the desorbed water in contact with the sorbent, removing the desorbed CO2 through the product outlet as a product stream, and desorbing a remaining water from the desiccant and the sorbent.

公开(公告)号：US20240017203A1

公开(公告)日：2024-01-18

申请号：US18255078

申请日：2021-12-08

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY

Inventor： John Cirucci ,  Klaus Lackner

IPC: B01D53/04

CPC classification number: B01D53/0462 ,  B01D53/0438 ,  B01D2257/504 ,  B01D2259/40092

Abstract: A system and method for the efficient collection of CO2 is disclosed. The system includes a subsystem having a condenser and a vaporizer, and a plurality of vessels each having a sorbent and configured to transition between gas collection, gas recovery, and heat recovery phases. The gas collection phase includes the sorbent absorbing CO2. The gas recovery phase has N stages, the vessels releasing a product gas and receiving vapor causing captured CO2 to desorb. The first (N−1) gas recovery stages include the vessel coupled to the subsystem at a downstream pressure and a vessel in the heat recovery phase at an upstream pressure. The Nth gas recovery stage includes the vessel coupled to the condenser at the downstream pressure and the vaporizer at the upstream pressure. The heat recovery phase has (N−1) stages, each including the vessel being coupled to a vessel in the gas recovery phase.

公开(公告)号：US20240024811A1

公开(公告)日：2024-01-25

申请号：US18255077

申请日：2021-12-08

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY

Inventor： John Cirucci ,  Klaus Lackner

IPC: B01D53/047 ,  B01D53/04

CPC classification number: B01D53/047 ,  B01D53/0462 ,  B01D2253/102 ,  B01D2253/206 ,  B01D2257/504

Abstract: A system for collecting a sorbate gas from a sorbent is disclosed, including a regeneration vessel enclosing a sorbent having a sorbate gas, a liquid water supply heated to a first temperature, and a heat pump with a condenser. The heat pump is also in contact with the water supply. Heat is removed from the condenser and used to heat the water supply to the first temperature. The system includes a compressor coupled to the condenser. The sorbent within the vessel is placed in contact with water vapor at the first temperature. The water vapor coming into contact with the sorbent causes sorbate gas to be released, forming a mixture including sorbate and water gases, raising the pressure. The vapor mixture is removed and cooled by the condenser, where a portion is condensed into water that is returned to the supply. The remaining mixture is compressed into a product gas.