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    Alkali-based removal of chemical moieties from gas streams with chemical co-generation
    2.
    发明授权
    Alkali-based removal of chemical moieties from gas streams with chemical co-generation 有权

    公开(公告)号：US11559766B2

    公开(公告)日：2023-01-24

    申请号：US17552676

    申请日：2021-12-16

    申请人： 8 Rivers Capital, LLC

    发明人： Xijia Lu ,  Brock Alan Forrest ,  Miles R. Palmer

    IPC分类号： B01D53/75 ,  B01D53/78 ,  B01D53/96 ,  F25J3/02

    摘要： The present disclosure provides systems and methods useful in capture of one more moieties (e.g., carbon dioxide) from a gas stream (i.e., direct air capture). In various embodiments, the systems and methods can utilize at least a scrubbing unit, a regeneration unit, and an electrolysis unit whereby an alkali solution can be used to strip the moiety (e.g., carbon dioxide) from the gas stream, the removed moiety can be regenerated and optionally purified for capture or other use, and a formed salt can be subjected to electrolysis to recycle the alkali solution back to the scrubber for re-use with simultaneous production of one or more further chemicals.

    OXIDATIVE DEHYDROGENATION OF ETHANE USING CARBON DIOXIDE
    6.
    发明申请
    OXIDATIVE DEHYDROGENATION OF ETHANE USING CARBON DIOXIDE 审中-公开

    公开(公告)号：US20190062236A1

    公开(公告)日：2019-02-28

    申请号：US16113772

    申请日：2018-08-27

    申请人： 8 Rivers Capital, LLC

    发明人： Damian Beauchamp ,  Xijia Lu ,  Mohammad Rafati

    IPC分类号： C07C5/333 ,  B01J8/02 ,  B01J8/08

    CPC分类号： C07C5/333 ,  B01J8/02 ,  B01J8/08 ,  C07C5/42 ,  C07C11/04

    摘要： The present disclosure relates to methods and systems suitable for chemical production by dehydrogenation of ethane utilizing carbon dioxide as a soft oxidant. Ethane and carbon dioxide are reacted in a catalytic reactor to produce a reaction product stream comprising at least ethylene and carbon dioxide. The carbon dioxide can be separated for recycling back into the catalytic reactor, and the ethylene can be upgraded using a variety of process units. Heat from the reaction product stream can be recycle for further uses, including reducing the amount of added heating needed in the catalytic reactor. Additional materials, such carbon monoxide, hydrogen, syngas, methanol, methane, ethane, and even heavier hydrocarbons can be provided.

    SYSTEM AND METHOD FOR POWER PRODUCTION WITH SOLID FUEL COMBUSTION AND CARBON CAPTURE
    7.
    发明申请
    SYSTEM AND METHOD FOR POWER PRODUCTION WITH SOLID FUEL COMBUSTION AND CARBON CAPTURE 审中-公开

    公开(公告)号：US20190024583A1

    公开(公告)日：2019-01-24

    申请号：US16040050

    申请日：2018-07-19

    申请人： 8 Rivers Capital, LLC

    发明人： Xijia Lu ,  Brock Alan Forrest ,  Miles R. Palmer

    IPC分类号： F02C3/34 ,  F02C3/26 ,  F02C6/12 ,  F02C7/08 ,  F02C7/141 ,  F02C6/02

    摘要： The present disclosure relates to systems and methods useful for power production utilizing direct combustion of a solid fuel, such as coal, biomass, or the like. The systems and methods can combine a first power producing cycle that is an open loop or semi-closed loop cycle with a second power producing cycle that is a closed loop cycle utilizing a recycled working fluid, preferably CO2. At least one stream from the open loop or semi-closed loop cycle can be used in a heating member to provide heat to the working fluid in the closed loop cycle. The solid fuel can be combusted at conditions facilitating easier removal of solids before a gaseous stream is treated and, optionally, at least partially recycled to the combustor as a recycle stream, preferably include CO2.

    POWER PRODUCTION WITH COGENERATION OF FURTHER PRODUCTS
    8.
    发明公开
    POWER PRODUCTION WITH COGENERATION OF FURTHER PRODUCTS 审中-公开

    公开(公告)号：US20240084721A1

    公开(公告)日：2024-03-14

    申请号：US18513179

    申请日：2023-11-17

    申请人： 8 Rivers Capital, LLC

    发明人： Xijia Lu ,  Brock Alan Forrest ,  Navid Rafati

    IPC分类号： F01K23/06 ,  C01B3/50 ,  F01K7/16 ,  F01K25/10

    CPC分类号： F01K23/064 ,  C01B3/50 ,  F01K7/16 ,  F01K23/068 ,  F01K25/103 ,  C01B2203/0405 ,  C01B2203/042 ,  C01B2203/0475 ,  C01B2203/068 ,  C01B2203/0883 ,  C01B2203/14 ,  C01B2203/84

    摘要： The present disclosure relates to cogeneration of power and one or more chemical entities through operation of a power production cycle and treatment of a stream comprising carbon monoxide and hydrogen. A cogeneration process can include carrying out a power production cycle, providing a heated stream comprising carbon monoxide and hydrogen, cooling the heated stream comprising carbon monoxide and hydrogen against at least one stream in the power production cycle so as to provide heating to the power production cycle, and carrying out at least one purification step so as to provide a purified stream comprising predominately hydrogen. A system for cogeneration of power and one or more chemical products can include a power production unit, a syngas production unit, one or more heat exchange elements configured for exchanging heat from a syngas stream from the syngas production unit to a stream from the power production unit, and at least one purifier element configured to separate the syngas stream into a first stream comprising predominately hydrogen and a second stream.

    Power production with cogeneration of further products
    9.
    发明授权
    Power production with cogeneration of further products 有权

    公开(公告)号：US11859517B2

    公开(公告)日：2024-01-02

    申请号：US17618196

    申请日：2020-06-12

    申请人： 8 Rivers Capital, LLC

    发明人： Xijia Lu ,  Brock Alan Forrest ,  Navid Rafati

    IPC分类号： F01K23/06 ,  C01B3/50 ,  F01K7/06 ,  F01K25/10

    CPC分类号： F01K23/064 ,  C01B3/50 ,  F01K7/06 ,  F01K23/068 ,  F01K25/103 ,  C01B2203/042 ,  C01B2203/0405 ,  C01B2203/0475 ,  C01B2203/068 ,  C01B2203/0883 ,  C01B2203/14 ,  C01B2203/84

    摘要： The present disclosure relates to cogeneration of power and one or more chemical entities through operation of a power production cycle and treatment of a stream comprising carbon monoxide and hydrogen. A cogeneration process can include carrying out a power production cycle, providing a heated stream comprising carbon monoxide and hydrogen, cooling the heated stream comprising carbon monoxide and hydrogen against at least one stream in the power production cycle so as to provide heating to the power production cycle, and carrying out at least one purification step so as to provide a purified stream comprising predominately hydrogen. A system for cogeneration of power and one or more chemical products can include a power production unit, a syngas production unit, one or more heat exchange elements configured for exchanging heat from a syngas stream from the syngas production unit to a stream from the power production unit, and at least one purifier element configured to separate the syngas stream into a first stream comprising predominately hydrogen and a second stream.