APPARATUS TO PRODUCE HIGH PURITY ETHANOL FROM CO2 AND A LOW BTU GAS STREAM

    公开(公告)号:US20220332668A1

    公开(公告)日:2022-10-20

    申请号:US17725137

    申请日:2022-04-20

    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)

    公开(公告)号:US11103849B2

    公开(公告)日:2021-08-31

    申请号:US16434318

    申请日:2019-06-07

    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.

    Upgrading of a raw blend into a diesel fuel substitute: poly(dimethoxymethane)

    公开(公告)号:US10322397B2

    公开(公告)日:2019-06-18

    申请号:US15693991

    申请日:2017-09-01

    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.

    EFFICIENCY, FLEXIBILITY, AND PRODUCT VALUE OF A DIRECT ALKANES TO OXYGENATES PROCESS
    9.
    发明申请
    EFFICIENCY, FLEXIBILITY, AND PRODUCT VALUE OF A DIRECT ALKANES TO OXYGENATES PROCESS 有权
    直接碱对氧化过程的有效性,灵活性和产品价值

    公开(公告)号:US20140275642A1

    公开(公告)日:2014-09-18

    申请号:US13844217

    申请日:2013-03-15

    Abstract: A method for preparing oxygenated hydrocarbons includes steps of: reacting a first heated hydrocarbon-containing gas stream with an oxygen-containing gas stream in a reactor for form a first product blend, recovering the energy generated in the reactor in order to preheat incoming hydrocarbon feed to the reactor and/or to drive endothermic reactions that generate synthesis gas, separating and condensing one or more liquid oxygenated hydrocarbons from the product stream, separating a reject stream from a recycle stream, mixing remaining gaseous hydrocarbon product from the recycle stream with the first hydrocarbon-containing gas stream after one reaction cycle, converting the first reject stream to a synthesis gas mixture, and converting the synthesis gas mixture to light alkanes to be blended with one or with oxygenates in an output stream to optionally form higher molecular weight oxygenates.

    Abstract translation: 一种制备含氧烃的方法包括以下步骤:使第一加热含烃气流与含氧气流在反应器中反应形成第一产物共混物,回收在反应器中产生的能量,以预热进入的烃进料 向反应器和/或驱动产生合成气的吸热反应,从产物流中分离和冷凝一种或多种液态含氧烃,从再循环流中分离出废品流,将来自再循环料流的剩余气态烃产物与第一 在一个反应​​循环之后的含烃气流,将第一废料流转化为合成气混合物,并将合成气混合物转化成轻质烷烃,以与输出物流中的一种或多种含氧化合物共混,以任选地形成较高分子量的含氧化合物。

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