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公开(公告)号：US20220379257A1
公开(公告)日：2022-12-01
申请号：US17884383
申请日：2022-08-09
Inventor： Narasimhan Sundaram , Patrick P. McCall , Brendon L. Keinath , Ananda K. Nagavarapu
Abstract: Systems and methods are provided for separation of CO2 from dilute source streams. The systems and methods for the separation can include use of contactors that correspond radial flow adsorbent modules that can allow for efficient contact of CO2-containing gas with adsorbent beds while also facilitating use of heat transfer fluids in the vicinity of the adsorbent beds to reduce or minimize temperature variations. In particular, the radial flow adsorbent beds can be alternated with regions of axial flow heat transfer conduits to provide thermal management. The radial flow structure for the adsorbent beds combined with axial flow conduits for heat transfer fluids can allow for sufficient temperature control to either a) reduce or minimize temperature variations within the adsorbent beds or b) facilitate performing the separation using temperature as a swing variable for controlling the working capacity of the adsorbent.
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公开(公告)号：US11707707B2
公开(公告)日：2023-07-25
申请号：US17884383
申请日：2022-08-09
Inventor： Narasimhan Sundaram , Patrick P. McCall , Brendon L. Keinath , Ananda K. Nagavarapu
CPC classification number: B01D53/0431 , B01D53/0462 , B01D53/08 , B01D2253/204 , B01D2257/504 , B01D2259/40086
Abstract: Systems and methods are provided for separation of CO2 from dilute source streams. The systems and methods for the separation can include use of contactors that correspond radial flow adsorbent modules that can allow for efficient contact of CO2-containing gas with adsorbent beds while also facilitating use of heat transfer fluids in the vicinity of the adsorbent beds to reduce or minimize temperature variations. In particular, the radial flow adsorbent beds can be alternated with regions of axial flow heat transfer conduits to provide thermal management. The radial flow structure for the adsorbent beds combined with axial flow conduits for heat transfer fluids can allow for sufficient temperature control to either a) reduce or minimize temperature variations within the adsorbent beds or b) facilitate performing the separation using temperature as a swing variable for controlling the working capacity of the adsorbent.
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Patent Agency Ranking
公开(公告)号：US11420182B2
公开(公告)日：2022-08-23
申请号：US15910212
申请日：2018-03-02
Inventor： Chuansheng Bai , Majosefina Cunningham , Patrick P. McCall , Hans Thomann , Jeannine Elizabeth Elliott , Vinh Nguyen
Abstract: The disclosure generally relates to CCS sorbents, particularly for CO2/H2O displacement desorption process. The sorbent includes an aluminum oxide support and an alkali metal salt impregnated on the support, and a silicon modification of the sorbent to reduce water uptake by the sorbent and make it more hydrophobic. The silicon modification can be an organosilyl moiety added after the initial sorbent is complete, or a silica source added to the aluminum oxide structure, typically via impregnation. The sorbents demonstrate better H2O/CO2 ratios. Compositions and methods of making are disclosed.
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4.发明授权公开(公告)号：US11850569B2
公开(公告)日：2023-12-26
申请号：US16889657
申请日：2020-06-01
Inventor： Jeannine Elizabeth Elliott , Robert James Copeland , Margarita Dubovik , Daniel P. Leta , Patrick P. McCall , Chuansheng Bai , Bruce A. DeRites
CPC classification number: B01J20/043 , B01J20/041 , B01J20/08 , B01J20/20 , B01J20/3204 , B01J20/3236 , B01J20/3466 , B01J20/3483 , B01J20/3491 , B01J2220/603 , B01J2220/606 , Y02C20/40
Abstract: Compositions and methods of preparing the compositions are disclosed for sorbents and other surfaces that can adsorb and desorb carbon dioxide. A sorbent or surface can include a metal compound such as an alkali or alkaline earth compound and a support. The sorbent can be prepared by several methods, including an incipient wetness technique. The sorbents have a CO2 adsorption and desorption profile. A sorbent having high levels of a metal compound and adsorbed CO2 is disclosed.
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公开(公告)号：US12121846B2
公开(公告)日：2024-10-22
申请号：US17034283
申请日：2020-09-28
Inventor： Jeannine Elizabeth Elliott , Robert James Copeland , Jeff Lind , Daniel P. Leta , Patrick P. McCall
CPC classification number: B01D53/0446 , B01D53/06 , B01D53/10 , B01D2253/104 , B01D2257/504 , B01D2258/0283 , B01D2259/40003 , B01D2259/40086 , B01D2259/4009 , B01D2259/402 , B01D2259/4065 , B01D2259/4067 , Y02C20/40
Abstract: A system and method for separating and/or purification of CO2 gas from a CO2 feed stream is described. The system and method include a plurality of fixed sorbent beds, adsorption zones and desorption zones, where the sorbent beds are connected via valve and lines to create a simulated moving bed system, where the sorbent beds move from one adsorption position to another adsorption position, and then into one regeneration position to another regeneration position, and optionally back to an adsorption position. The system and method operate by concentration swing adsorption/desorption and by adsorptive/desorptive displacement.
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公开(公告)号：US12030032B2
公开(公告)日：2024-07-09
申请号：US17316713
申请日：2021-05-11
Inventor： Chuansheng Bai , Majosefina Cunningham , Patrick P. McCall , Hans Thomann , Jeannine Elizabeth Elliott , Vinh Nguyen
CPC classification number: B01J20/08 , B01D53/02 , B01J20/041 , B01J20/3007 , B01J20/3078 , B01J20/3204 , B01J20/3236 , B01D2253/1124 , B01D2257/504 , B01D2258/0283 , Y02C20/40
Abstract: The disclosure generally relates to CCS sorbents, particularly for CO2/H2O displacement desorption process. The sorbents include an aluminum oxide support that includes alkali metal salts within the support, in the form of pseudo alkali aluminate. The sorbents also include alkali metal salt impregnated on the support. The sorbents demonstrate improved CO2 loadings and better H2O/CO2 ratios, as well as improved stability. Compositions and methods of making are disclosed.
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公开(公告)号：US11446601B2
公开(公告)日：2022-09-20
申请号：US16730205
申请日：2019-12-30
Inventor： Narasimhan Sundaram , Patrick P. McCall , Brendon L. Keinath , Ananda K. Nagavarapu
Abstract: Systems and methods are provided for separation of CO2 from dilute source streams. The systems and methods for the separation can include use of contactors that correspond radial flow adsorbent modules that can allow for efficient contact of CO2-containing gas with adsorbent beds while also facilitating use of heat transfer fluids in the vicinity of the adsorbent beds to reduce or minimize temperature variations. In particular, the radial flow adsorbent beds can be alternated with regions of axial flow heat transfer conduits to provide thermal management. The radial flow structure for the adsorbent beds combined with axial flow conduits for heat transfer fluids can allow for sufficient temperature control to either a) reduce or minimize temperature variations within the adsorbent beds or b) facilitate performing the separation using temperature as a swing variable for controlling the working capacity of the adsorbent.
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