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    SORBENT SYSTEM FOR REMOVING AMMONIA AND ORGANIC COMPOUNDS FROM A GASEOUS ENVIRONMENT
    1.
    发明申请
    SORBENT SYSTEM FOR REMOVING AMMONIA AND ORGANIC COMPOUNDS FROM A GASEOUS ENVIRONMENT 有权

    公开(公告)号：US20210236983A1

    公开(公告)日：2021-08-05

    申请号：US17211946

    申请日：2021-03-25

    Applicant: Precision Combustion, Inc.

    Inventor： Christian Junaedi ,  Codruta Maria Zoican-Loebick ,  Kyle Hawley

    IPC: B01D53/047 ,  B01J20/02 ,  B01J20/28 ,  B01J20/34 ,  B01J20/04 ,  B01J20/32 ,  B01J20/20 ,  B01J20/06

    Abstract: A first process and sorbent for removing ammonia from a gaseous environment, the sorbent comprised of graphene oxide having supported thereon at least one compound selected from metal salts, metal oxides and acids, each of which is capable of adsorbing ammonia. A second process and sorbent system for removing ammonia and a volatile organic compound from a gaseous environment; the sorbent system comprised of two graphene-based materials: (a) the aforementioned graphene oxide, and (b) a nitrogen and oxygen-functionalized graphene. The sorbents are regenerable under a pressure gradient with little or no application of heat. The processes are operable through multiple adsorption-desorption cycles and are applicable to purifying and revitalizing air contaminated with ammonia and organic compounds as may be found in spacesuits, aerospace cabins, underwater vehicles, and other confined-entry environments.

    Process of producing ethylene
    3.
    发明授权
    Process of producing ethylene 有权

    公开(公告)号：US11453625B1

    公开(公告)日：2022-09-27

    申请号：US17243065

    申请日：2021-04-28

    Applicant: PRECISION COMBUSTION INC

    Inventor： Jeffrey G Weissman ,  Codruta Maria Zoican-Loebick

    IPC: C07C5/327 ,  B01J20/34 ,  C07C7/13

    Abstract: A process of producing ethylene involving steam cracking ethane to produce a steam cracker product stream containing ethylene; cooling and drying the steam cracker product stream; contacting the cooled and dried steam cracker product stream with a MOF sorbent capable of adsorbing ethylene from the product stream, and desorbing the ethylene from the MOF sorbent using an ethylene sweep gas. The process replaces complex and energy intensive fractionation steps of the prior art with a selective adsorption step for separating ethylene from the steam cracker product stream. An energy efficient ethylene sorbent regeneration method and related apparatus systems are also disclosed.

    Sorbent system for removing ammonia and organic compounds from a gaseous environment
    7.
    发明授权
    Sorbent system for removing ammonia and organic compounds from a gaseous environment 有权

    公开(公告)号：US10994241B1

    公开(公告)日：2021-05-04

    申请号：US16008115

    申请日：2018-06-14

    Applicant: Precision Combustion, Inc.

    Inventor： Christian Junaedi ,  Codruta Maria Zoican-Loebick ,  Kyle Hawley

    IPC: B01D53/04 ,  B01J20/20 ,  B01D53/047 ,  B01J20/04 ,  B01J20/06 ,  B01J20/02 ,  B01J20/28 ,  B01J20/32 ,  B01J20/34

    Abstract: A first process and sorbent for removing ammonia from a gaseous environment, the sorbent comprised of graphene oxide having supported thereon at least one compound selected from metal salts, metal oxides and acids, each of which is capable of adsorbing ammonia. A second process and sorbent system for removing ammonia and a volatile organic compound from a gaseous environment; the sorbent system comprised of two graphene-based materials: (a) the aforementioned graphene oxide, and (b) a nitrogen and oxygen-functionalized graphene. The sorbents are regenerable under a pressure gradient with little or no application of heat. The processes are operable through multiple adsorption-desorption cycles and are applicable to purifying and revitalizing air contaminated with ammonia and organic compounds as may be found in spacesuits, aerospace cabins, underwater vehicles, and other confined-entry environments.

    High capacity regenerable graphene-based sorbent
    8.
    发明授权
    High capacity regenerable graphene-based sorbent 有权

    公开(公告)号：US10464044B1

    公开(公告)日：2019-11-05

    申请号：US15582813

    申请日：2017-05-01

    Applicant: PRECISION COMBUSTION, INC.

    Inventor： Codruta Maria Zoican-Loebick

    IPC: B01D53/02 ,  B01J20/22 ,  B01D53/04 ,  B01J20/28

    Abstract: A process of removing a volatile organic compound (VOC) from a gaseous environment, involving contacting a gaseous feedstream containing one or more VOC's, such as an odoriferous compound, an irritant, a contaminant or pollutant, for example, formaldehyde, with a sorbent under conditions sufficient to reduce the concentration of the VOC's in the gaseous feedstream. The sorbent is comprised of a functionalized graphene prepared by amination of graphene oxide. The sorbent is regenerated by adsorbate desorption under mild conditions of air flow. The process can be run through multiple adsorption-desorption cycles in a single fixed bed or swing bed configuration, and is applicable to purifying indoor air and ventilation air as well as reducing pollutants in industrial waste gas streams.

    System for dehumidification of a vehicle interior
    10.
    发明授权
    System for dehumidification of a vehicle interior 有权

    公开(公告)号：US12103365B1

    公开(公告)日：2024-10-01

    申请号：US17695320

    申请日：2022-03-15

    Applicant: Precision Combustion, Inc.

    Inventor： Codruta Maria Zoican-Loebick ,  Christian Junaedi ,  Julian Prada ,  Subir Roychoudhury

    IPC: B60H3/02

    CPC classification number: B60H3/024 ,  B60H2003/028

    Abstract: A dehumidification system comprising an enclosure having sidewalls, the sidewalls defining a cavity; an inlet fluidly coupled to the cavity, the inlet configured to receive air into the cavity; an outlet fluidly coupled to the cavity, the outlet configured to discharge the air from the cavity; a sorbent bed located within the cavity fluidly coupled to the inlet and the outlet; the sorbent bed comprising a substrate with dehumidification materials attached to the substrate and coupled to an insulator; a regenerable power source electrically coupled to the substrate configured to electrically heat the substrate to a predetermined temperature configured to regenerate the sorbent bed and a blower fluidly coupled to the inlet and the outlet, the blower configured to transfer air from the inlet through the sorbent bed and out the outlet.

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