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公开(公告)号：US20210261481A1
公开(公告)日：2021-08-26
申请号：US17256688
申请日：2019-06-26
Applicant: Dow Global Technologies LLC
Inventor： Matthew T. Pretz , Hangyao Wang , Lin Luo
IPC: C07C5/333
Abstract: According to one or more embodiments presently disclosed, a method for processing a chemical stream may include 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. Contacting the feed stream with the catalyst may cause a reaction forming an effluent. The method may include 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 may include passing the catalyst to a combustor, combusting a supplemental fuel stream in the combustor to heat the catalyst, and treating the heated catalyst with an oxygen-containing gas. The supplemental fuel stream may include at least 1 mol % of one or more hydrocarbons, and a weight ratio of catalyst to hydrocarbons in the combustor may be at least 300:1.
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公开(公告)号：US20200231521A1
公开(公告)日：2020-07-23
申请号：US16634335
申请日：2018-07-30
Applicant: Dow Global Technologies LLC
Inventor： Matthew T. Pretz , Madhusudhan Kodam
Abstract: According to one or more embodiments disclosed herein, a reactant gas may be converted by a method comprising introducing the reactant gas to a fluidized bed reactor. The main reactor vessel of the fluidized bed reactor may be tapered such that the upstream portion of the main reactor vessel comprises a lesser cross-sectional area than the downstream portion of the main reactor vessel.
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公开(公告)号：US10507448B2
公开(公告)日：2019-12-17
申请号：US16346626
申请日：2017-10-30
Applicant: Dow Global Technologies LLC
Inventor： Matthew T. Pretz , Ben J. Freireich , Madhusudhan Kodam , Brien A. Stears
Abstract: According to one or more embodiments of the present disclosure, a fluid catalytic reactor may be scaled-up by a method that includes one or more of constructing, operating, observing, or obtaining data related to a template fluid catalytic reactor comprising a template riser, a template lower reactor portion, and a template transition portion connecting the template riser and the template lower reactor portion. The method may further include one or more of constructing or operating a scaled-up fluid catalytic reactor based on the template fluid catalytic reactor.
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公开(公告)号：US20190225563A1
公开(公告)日：2019-07-25
申请号：US16255364
申请日：2019-01-23
Applicant: Dow Global Technologies LLC
Inventor： Matthew T. Pretz
IPC: C07C5/333 , B01J23/26 , B01J38/02 , B01J38/12 , B01J38/14 , B01J23/62 , B01J23/94 , B01J35/00 , B01J21/04 , B01J21/12 , B01J23/887 , B01J23/92 , B01J23/96 , B01J35/10 , B01J8/00 , B01J8/26 , B01J8/18 , B01J8/12 , B01J8/08
CPC classification number: C07C5/3332 , B01J8/0025 , B01J8/0055 , B01J8/087 , B01J8/12 , B01J8/1836 , B01J8/1863 , B01J8/26 , B01J21/04 , B01J21/12 , B01J23/26 , B01J23/62 , B01J23/8871 , B01J23/92 , B01J23/94 , B01J23/96 , B01J35/0006 , B01J35/1009 , B01J35/1014 , B01J38/02 , B01J38/12 , B01J38/14 , B01J2208/00176 , B01J2208/00362 , B01J2208/00769 , B01J2219/00024 , C07C2521/04 , C07C2521/08 , C07C2521/12 , C07C2523/08 , C07C2523/42 , C07C2523/62 , Y02P20/125 , Y02P20/52 , Y02P20/584 , C07C11/06 , C07C11/08
Abstract: An integrated process for producing C3-C4 olefins or di-olefins including: contacting a hydrocarbon feed and a catalyst feed in a fluidized dehydrogenation reactor under conditions such that a product mixture is formed and the catalyst is at least partially deactivated; transferring the product mixture and the catalyst from the reactor to a cyclonic separation system under conditions such that the product mixture is converted to form a new product mixture and is separated from the catalyst; transferring at least a portion of the catalyst to a regenerator vessel and heating it in order to combust the coke deposited thereon; subjecting the catalyst to a conditioning step to form an oxygen-containing, at least partially reactivated catalyst; and transferring the partially reactivated catalyst back to the fluidized dehydrogenation reactor.
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85.发明申请公开(公告)号：US20170334813A1
公开(公告)日：2017-11-23
申请号：US15525354
申请日：2015-11-10
Applicant: Dow Global Technologies LLC
Inventor： Barry B. Fish , Matthew T. Pretz , Max M. Tirtowidjojo
Abstract: A process is provided for the chlorination of ethane using chlorine as the chlorinating agent to produce ethylene, hydrogen chloride (HCl) and vinyl chloride monomer (VCM).
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Patent Agency Ranking
86.发明申请公开(公告)号：US20170334812A1
公开(公告)日：2017-11-23
申请号：US15525352
申请日：2015-11-10
Applicant: Dow Global Technologies LLC
Inventor： Barry B. Fish , Matthew T. Pretz , Max M. Tirtowidjojo
Abstract: A process is provided for the chlorination of ethane using chlorine as the chlorinating agent to produce vinylidene (1,1-dichloroethylene), hydrogen chloride and ethylene.
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公开(公告)号：US20170087528A1
公开(公告)日：2017-03-30
申请号：US14868507
申请日：2015-09-29
Applicant: Dow Global Technologies LLC
Inventor： Matthew T. Pretz , Richard E. Walter , Don F. Shaw , Fermin A. Sandoval , Liwei Li
CPC classification number: B01J7/00 , B01J8/1818 , B01J8/1827 , B01J8/34 , B01J8/44 , B01J38/02 , B01J2208/00504 , F23C10/12 , F23C10/20 , F23C10/22
Abstract: A fluidized fuel gas combustor system for a catalytic dehydrogenation process comprising a vessel having a lower portion and an upper portion; a plurality of air injection diffusers located in the lower portion of the vessel; a plurality of fuel gas injection diffusers located on fuel gas distributors disposed in the vessel and spaced apart from and above a plurality of air injection diffusers, wherein the fuel gas diffusers are placed in a manner to maximize even mass distribution of a fuel gas injected through the fuel gas diffusers in the vessel, wherein each fuel distributor comprises a tube having a plurality of fuel gas injection diffusers, one or more optional grid assemblies disposed in the vessel spaced apart from and above the plurality of air injection diffusers and paced apart from and below the fuel gas distributors to maximize even air mass distribution; and one or more grid assemblies disposed in the vessel spaced above the fuel gas distributors is provided.
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公开(公告)号：US09597652B1
公开(公告)日：2017-03-21
申请号：US14870368
申请日：2015-09-30
Applicant: Dow Global Technologies LLC
Inventor： Matthew T. Pretz , Don F. Shaw , Richard E. Walter , Madhusudhan Kodam
CPC classification number: B01J8/24 , B01J38/30 , B01J2208/00991 , C10G11/182
Abstract: A catalyst regenerator for combusting carbonaceous deposits from a catalyst comprising a first chamber which comprises a catalyst inlet for feeding spent catalyst with carbonaceous deposits to the first chamber, a supplemental fuel gas distributor, and a distributor for distributing oxygen containing gas into the first chamber; a riser section extending from the first chamber for transporting the spent catalyst and the flue gas, the riser section comprising an outer wall, at least one slot in the outer wall, and a riser termination device which comprises a substantially internally flat cover plate, at least one arm extending from the cover plate, wherein the arm extends about the slot from the outer wall, the arm comprising an outer shell that encloses the arm and wherein no internal portion of the cover plate extends above an upper surface of the outer shell of the at least one arm is provided.
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公开(公告)号：US20170001163A1
公开(公告)日：2017-01-05
申请号：US14755008
申请日：2015-06-30
Applicant: Dow Global Technologies LLC
Inventor： Matthew T. Pretz , Fermin A. Sandoval , Don F. Shaw
CPC classification number: B01J8/24 , B01J8/008 , B01J8/44 , B01J19/305 , B01J19/325 , B01J2208/0084 , B01J2208/00884 , B01J2219/185
Abstract: A fluid solids contacting device comprising a vessel; one or more grid structures comprising two or more levels, wherein each level comprises a plurality of grid assembly sections; a base formed from structural members used to support the multi-tiered structure; and three or more chairs attached to an inside surface of the vessel and spaced apart to support the base; and wherein the base is supported by the chairs is provided.
Abstract translation: 一种流体固体接触装置，包括容器; 一个或多个网格结构包括两个或更多个等级，其中每个级包括多个网格组件段; 由用于支撑多层结构的结构构件形成的底座; 并且三个或更多个椅子附接到容器的内表面并间隔开以支撑底座; 并且其中所述底座由椅子支撑。
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公开(公告)号：US20160375419A1
公开(公告)日：2016-12-29
申请号：US14751424
申请日：2015-06-26
Applicant: Dow Global Technologies LLC
Inventor： Matthew T. Pretz , Don F. Shaw , Fermin A. Sandoval
IPC: B01J8/18
CPC classification number: B01J8/18 , B01D3/22 , B01J8/008 , B01J8/44 , B01J19/305 , B01J19/325 , B01J2208/0084 , B01J2208/00884 , B01J2219/185
Abstract: A fluid solids contacting device comprising a vessel; a first grid assembly section which comprises a plurality of horizontal chords spaced horizontally apart from each other and a plurality of grid platforms inserted between the horizontal chords; wherein each horizontal chord comprises a structural member with sufficient mechanical strength to withstand fluidized forces in the vessel; a plurality of chairs attached to an inside surface of the vessel and spaced circumferentially apart to support the structural member; and wherein each structural member is supported on one or more of the plurality of chairs is provided.
Abstract translation: 一种流体固体接触装置，包括容器; 第一格栅组合部分，其包括彼此水平间隔开的多个水平弦杆和插入在所述水平弦杆之间的多个格栅平台; 其中每个水平弦包括具有足够的机械强度以承受容器中的流化力的结构构件; 多个椅子，其附接到容器的内表面并且周向地间隔开以支撑结构构件; 并且其中每个结构构件被支撑在多个椅子中的一个或多个上。
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