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    UPGRADING OF A RAW BLEND INTO A DIESEL FUEL SUBSTITUTE: POLY(DIMETHOXYMETHANE)
    1.
    发明申请
    UPGRADING OF A RAW BLEND INTO A DIESEL FUEL SUBSTITUTE: POLY(DIMETHOXYMETHANE) 有权

    公开(公告)号：US20210387157A1

    公开(公告)日：2021-12-16

    申请号：US17459038

    申请日：2021-08-27

    Applicant: GAS TECHNOLOGIES LLC

    Inventor： Evan VISSER ,  Walter BREIDENSTEIN

    IPC: B01J19/24 ,  C10G5/06 ,  B64C27/12 ,  F16H57/00 ,  F16H57/025 ,  F16H57/04 ,  B01D3/00 ,  B01D3/14 ,  C07C41/56 ,  C07C41/58 ,  C10L1/02

    Abstract: A method for forming poly(dimethoxymethane) includes a step of separating a formaldehyde-containing blend into a first bottom stream and a first top stream. The first formaldehyde-containing blend includes methanol, formaldehyde, and water while the first bottom stream includes water. The first top stream includes dimethoxymethane that is produced from the reaction between methanol and formaldehyde. The first top stream is separated into a second bottom stream and a second top stream. The second bottom stream includes poly(dimethoxymethane) while the second top stream includes dimethoxymethane, methanol, and ethanol. The second top stream is separated into a third bottom stream and a third top stream. Third bottom stream includes methanol and ethanol while the third top stream includes dimethoxymethane. The third top steam can be recycled to form additional poly(dimethoxymethane). A system that implements the method is also provided.

    HIGHLY EFFICIENT METHANE SEPARATION FOR RNG-LNG AND CO2 CONVERSION
    5.
    发明申请
    HIGHLY EFFICIENT METHANE SEPARATION FOR RNG-LNG AND CO2 CONVERSION 有权

    公开(公告)号：US20240409834A1

    公开(公告)日：2024-12-12

    申请号：US18700882

    申请日：2022-10-12

    Applicant: GAS TECHNOLOGIES LLC

    Inventor： Walter BREIDENSTEIN ,  Evan VISSER ,  Hanif CHOUDHURY

    IPC: C10L3/10

    Abstract: A methane purification system includes one or more components that cool and compress an input methane-containing gaseous mixture stream to form a first methane-containing gaseous mixture stream. A filter-separator in fluid communication with the one or more components receives the first methane-containing gaseous mixture stream removing water therefrom to form a second methane-containing gaseous mixture stream. An activated carbon station receives the second methane-containing gaseous mixture stream removing hydrogen sulfide therefrom to form a third methane-containing gaseous mixture stream. A methanol scrubber that receives the third methane-containing gaseous mixture stream or an expanded stream therefrom, removing carbon dioxide to form a fourth methane-containing gaseous mixture stream. A final stage separator produces a purified methane stream from the fourth methane-containing gaseous mixture stream or an expanded stream therefrom.

    APPARATUS TO PRODUCE HIGH PURITY ETHANOL FROM CO2 AND A LOW BTU GAS STREAM
    7.
    发明申请
    APPARATUS TO PRODUCE HIGH PURITY ETHANOL FROM CO2 AND A LOW BTU GAS STREAM 有权

    公开(公告)号：US20220332668A1

    公开(公告)日：2022-10-20

    申请号：US17725137

    申请日：2022-04-20

    Applicant: GAS TECHNOLOGIES LLC

    Inventor： Walter BREIDENSTEIN

    IPC: C07C29/152 ,  C07C29/153 ,  H05H1/24

    Abstract: Catalytic CO2 hydrogenation to ethanol utilizing radio frequency is very attractive due to higher selectivity (˜99%) to ethanol and yield of 0.000718 g/h or higher. A dielectric barrier discharge (DBD) plasma reactor packed with a catalyst comprising of Cu/Zn/Al2O3 can be used for this purpose, which can be operated at approximately 100-200° C., 1-20 atm pressure and gas flow rates above 20 mL/min. The reactor can be made of a simple inert tube. The process is very attractive for a feasible industrial application. To scale up the process to industrial relevance, a multi-tubular reactor configuration is proposed.

    UPGRADING OF A RAW BLEND INTO A DIESEL FUEL SUBSTITUTE: POLY(DIMETHOXYMETHANE)
    8.
    发明申请
    UPGRADING OF A RAW BLEND INTO A DIESEL FUEL SUBSTITUTE: POLY(DIMETHOXYMETHANE) 审中-公开

    公开(公告)号：US20190282993A1

    公开(公告)日：2019-09-19

    申请号：US16434318

    申请日：2019-06-07

    Applicant: GAS TECHNOLOGIES LLC

    Inventor： Evan VISSER ,  Walter BREIDENSTEIN

    IPC: B01J19/24 ,  B01D3/14 ,  C07C41/58 ,  B01D3/00 ,  C10L1/02 ,  C07C41/56

    Abstract: A method for forming poly(dimethoxymethane) includes a step of separating a formaldehyde-containing blend into a first bottom stream and a first top stream. The first formaldehyde-containing blend includes methanol, formaldehyde, and water while the first bottom stream includes water. The first top stream includes dimethoxymethane that is produced from the reaction between methanol and formaldehyde. The first top stream is separated into a second bottom stream and a second top stream. The second bottom stream includes poly(dimethoxymethane) while the second top stream includes dimethoxymethane, methanol, and ethanol. The second top stream is separated into a third bottom stream and a third top stream. Third bottom stream includes methanol and ethanol while the third top stream includes dimethoxymethane. The third top steam can be recycled to form additional poly(dimethoxymethane). A system that implements the method is also provided.

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