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    CHEMICAL PROCESSING UTILIZING HYDROGEN CONTAINING SUPPLEMENTAL FUEL FOR CATALYST PROCESSING
    1.
    发明申请
    CHEMICAL PROCESSING UTILIZING HYDROGEN CONTAINING SUPPLEMENTAL FUEL FOR CATALYST PROCESSING 有权

    公开(公告)号：US20220340505A1

    公开(公告)日：2022-10-27

    申请号：US17860357

    申请日：2022-07-08

    Applicant: Dow Global Technologies LLC

    Inventor： Matthew T. Pretz ,  Mark W. Stewart ,  Lin Luo ,  Hangyao Wang

    IPC: C07C5/333 ,  B01J8/00 ,  B01J8/18 ,  B01J8/24 ,  B01J21/12 ,  B01J23/62 ,  B01J23/96 ,  B01J38/02 ,  B01J38/12

    Abstract: A method for processing a chemical stream includes contacting a feed stream with a catalyst in a reactor portion of a reactor system that includes a reactor portion and a catalyst processing portion. The catalyst includes platinum, gallium, or both and contacting the feed stream with the catalyst causes a reaction which forms an effluent stream. The method includes separating the effluent stream from the catalyst, passing the catalyst to the catalyst processing portion, and processing the catalyst in the catalyst processing portion. Processing the catalyst includes passing the catalyst to a combustor, combusting a supplemental fuel in the combustor to heat the catalyst, treating the heated catalyst with an oxygen-containing gas to produce a reactivated catalyst, and passing the reactivated catalyst from the catalyst processing portion to the reactor portion. The supplemental fuel may include a molar ratio of hydrogen to other combustible fuels of at least 1:1.

    Propane dehydrogenation sulfur management
    3.
    发明授权
    Propane dehydrogenation sulfur management 有权

    公开(公告)号：US10392319B2

    公开(公告)日：2019-08-27

    申请号：US15037242

    申请日：2014-12-03

    Applicant: Dow Global Technologies LLC

    Inventor： Matthew T. Pretz ,  Lin Luo ,  Brien A. Stears ,  Mark W. Stewart

    IPC: C07C5/333 ,  C07C7/12 ,  C10G25/00 ,  C10G35/09 ,  C10G9/00

    Abstract: Manage sulfur present as sulfur or a sulfur compound in a hydrocarbon feedstream while effecting dehydrogenation of hydrocarbon(s) (e.g. propane) contained in the hydrocarbon feedstream to its/their corresponding olefin (e.g. propylene where the hydrocarbon is propane) without subjecting the feedstream to desulfurization before it contacts a fluidizable dehydrogenation catalyst that is both a desulfurant and a dehydrogenation catalyst and comprises gallium and platinum on an alumina or alumina-silica catalyst support with optional alkali or alkaline earth metal such as potassium. Contact with such a catalyst yields a desulfurized crude olefin product that corresponds to the hydrocarbon and has a reduced amount of sulfur or sulfur compounds relative to the sulfur or sulfur compounds present in the hydrocarbon feedstream prior to contact with the catalyst.

    PROPANE DEHYDROGENATION SULFUR MANAGEMENT
    5.
    发明申请
    PROPANE DEHYDROGENATION SULFUR MANAGEMENT 审中-公开
    丙烷脱氢硫化物管理

    公开(公告)号：US20160289144A1

    公开(公告)日：2016-10-06

    申请号：US15037242

    申请日：2014-12-03

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： Matthew T. Pretz ,  Lin Luo ,  Brien A. Stears ,  Mark W. Stewart

    IPC: C07C5/333 ,  C07C7/12

    CPC classification number: C07C5/3337 ,  C07C7/12 ,  C07C2521/12 ,  C07C2523/04 ,  C07C2523/08 ,  C07C2523/42 ,  C07C2523/62 ,  C07C2527/224 ,  C10G9/00 ,  C10G25/00 ,  C10G35/09 ,  C10G2400/20 ,  C07C11/06

    Abstract: Manage sulfur present as sulfur or a sulfur compound in a hydrocarbon feedstream while effecting dehydrogenation of hydrocarbon(s) (e.g. propane) contained in the hydrocarbon feedstream to its/their corresponding olefin (e.g. propylene where the hydrocarbon is propane) without subjecting the feedstream to desulfurization before it contacts a fluidizable dehydrogenation catalyst that is both a desulfurant and a dehydrogenation catalyst and comprises gallium and platinum on an alumina or alumina-silica catalyst support with optional alkaline or alkaline earth metal such as potassium. Contact with such a catalyst yields a desulfurized crude olefin product that corresponds to the hydrocarbon and has a reduced amount of sulfur or sulfur compounds relative to the sulfur or sulfur compounds present in the hydrocarbon feedstream prior to contact with the catalyst.

    Abstract translation: 在碳氢化合物原料流中管理作为硫或硫化合物存在的硫，同时将烃原料流中所含的烃（例如丙烷）脱氢至其相应的烯烃（例如丙烯，其中烃是丙烷），而不使进料流 在脱硫和脱氢催化剂接触可流化的脱氢催化剂之前脱硫，并且在含有碱金属或碱土金属如钾的氧化铝或氧化铝 - 二氧化硅催化剂载体上包含镓和铂。 与这种催化剂接触产生对应于烃的脱硫粗烯烃产物，并且在与催化剂接触之前相对于存在于烃进料流中的硫或硫化合物具有减少量的硫或硫化合物。

    CHEMICAL PROCESSING UTILIZING HYDROGEN CONTAINING SUPPLEMENTAL FUEL FOR CATALYST PROCESSING
    6.
    发明申请
    CHEMICAL PROCESSING UTILIZING HYDROGEN CONTAINING SUPPLEMENTAL FUEL FOR CATALYST PROCESSING 有权

    公开(公告)号：US20210261482A1

    公开(公告)日：2021-08-26

    申请号：US17256706

    申请日：2019-06-26

    Applicant: Dow Global Technologies LLC

    Inventor： Matthew T. Pretz ,  Mark W. Stewart ,  Lin Luo ,  Hangyao Wang

    IPC: C07C5/333 ,  B01J23/62 ,  B01J21/12 ,  B01J23/96 ,  B01J38/02 ,  B01J38/12 ,  B01J8/00 ,  B01J8/24 ,  B01J8/18

    Abstract: A method for processing a chemical stream includes contacting a feed stream with a catalyst in a reactor portion of a reactor system that includes a reactor portion and a catalyst processing portion. The catalyst includes platinum, gallium, or both and contacting the feed stream with the catalyst causes a reaction which forms an effluent stream. The method includes separating the effluent stream from the catalyst, passing the catalyst to the catalyst processing portion, and processing the catalyst in the catalyst processing portion. Processing the catalyst includes passing the catalyst to a combustor, combusting a supplemental fuel in the combustor to heat the catalyst, treating the heated catalyst with an oxygen-containing gas to produce a reactivated catalyst, and passing the reactivated catalyst from the catalyst processing portion to the reactor portion. The supplemental fuel may include a molar ratio of hydrogen to other combustible fuels of at least 1:1.

    FLUID CATALYTIC REACTORS WHICH INCLUDE FLOW DIRECTORS
    7.
    发明申请
    FLUID CATALYTIC REACTORS WHICH INCLUDE FLOW DIRECTORS 审中-公开

    公开(公告)号：US20190255498A1

    公开(公告)日：2019-08-22

    申请号：US16346586

    申请日：2017-10-25

    Applicant: Dow Global Technologies LLC

    Inventor： Matthew T. Pretz ,  Mark W. Stewart ,  Ben J. Freireich ,  Madhusudhan Kodam ,  Brien A. Stears

    IPC: B01J8/00 ,  B01J8/26 ,  B01J8/34 ,  C10G11/18

    Abstract: According to one or more embodiments, a fluid catalytic reactor may include a riser, a lower reactor portion, a transition portion, and a flow director. The riser may include a cross-sectional area, and the lower reactor portion may include a cross-sectional area. The transition portion may attach the riser to the lower reactor portion. The cross-sectional area of the riser may be less than the cross-sectional area of the lower reactor portion such that the transition portion is tapered inward from the lower reactor portion to the riser. The flow director may be positioned at least within an interior region of the transition portion. The flow director may include a body which affects the velocity profile of fluids moving from the lower reactor portion to the riser.

    CATALYTIC DEHYDROGENATION PROCESS
    8.
    发明申请
    CATALYTIC DEHYDROGENATION PROCESS 有权
    催化脱氢工艺

    公开(公告)号：US20160272559A1

    公开(公告)日：2016-09-22

    申请号：US15034637

    申请日：2014-10-14

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： Matthew T. Pretz ,  Mark W. Stewart

    IPC: C07C5/333

    CPC classification number: C07C5/3337 ,  C07C2521/04 ,  C07C2521/12 ,  C07C2523/08 ,  C07C2523/42 ,  C07C2523/62 ,  Y02P20/52 ,  C07C11/06

    Abstract: An improved catalytic dehydrogenation process which process comprises contacting an alkane or alkyl aromatic feedstream with a dehydrogenation catalyst under catalytic conditions in an up-flow fluidized reactor, wherein the fluidized reactor comprises one or more reactors, which catalytic conditions include a temperature within a range of from 500 to 800° C., a weight hourly space velocity within a range of from 0.1 to 1000, a gas residence time within a range of from 0.1 to 10 seconds, and, subsequent to the fluidized reactor, effecting separation of entrained catalyst from reactor effluent by use of a cyclonic separation system, wherein the improvement comprises interposing a cooling means between an up-flow fluidized reactor and the cyclonic separation system to substantially halt thermal reactions, thereby effectively increasing overall molar selectivity to alkene product is provided.

    Abstract translation: 一种改进的催化脱氢方法，该方法包括在上游流化反应器中在催化条件下使烷烃或烷基芳族原料流与脱氢催化剂接触，其中该流化反应器包括一个或多个反应器，该催化条件包括在 从500至800℃，重时空速在0.1至1000范围内，气体停留时间在0.1至10秒的范围内，并且在流化反应器之后，将夹带的催化剂从 反应器流出物，其中改进包括在上流式流化反应器和旋风分离系统之间插入冷却装置以基本上停止热反应，由此有效地提高了对烯烃产物的总的摩尔选择性。

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