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公开(公告)号：US5286691A
公开(公告)日：1994-02-15
申请号：US966475
申请日：1992-10-26
CPC分类号： C10G11/182 , B01J29/90 , B01J38/30 , Y10S502/516
摘要： A process for demetallizing metals contaminated FCC catalyst in an FCC regenerator. A metals getter additive, with higher settling velocity, is added to the regenerator, to remove metals from FCC catalyst by solid-solid interaction. The FCC catalyst forms a light, discrete, dense phase fluidized bed on top of a fluidized bed of additive. FCC catalyst is recycled to the cracking reactor from the top fluidized bed, while additive can be withdrawn from the lower fluidized bed for disposal or for metals recovery and recycle. Additive can be optimized for metals removal and will not dilute the cracking catalyst in the FCC reactor.
摘要翻译： 在FCC再生器中使金属污染的FCC催化剂脱金属的方法。 将一种具有较高沉降速度的金属吸附剂添加到再生器中，以通过固体 - 固体相互作用从FCC催化剂中除去金属。 FCC催化剂在添加剂流化床的顶部形成轻质，离散的致密相流化床。 FCC催化剂从顶部流化床再循环到裂化反应器中，而添加剂可从下流化床中排出以进行处理或用于金属回收和回收。 添加剂可以优化金属去除，不会稀释FCC反应器中的裂化催化剂。
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公开(公告)号：US5171540A
公开(公告)日：1992-12-15
申请号：US660210
申请日：1991-02-25
申请人： Jan W. Wells , Philip V. Steed
发明人： Jan W. Wells , Philip V. Steed
CPC分类号： B01J38/30 , B01J8/1818 , C10G11/182 , Y10S239/19
摘要： Catalytic regenerators, nozzle designs and processes suitable for introducing regeneration air into a catalytic cracking unit which substantially reduce erosion induced nozzle failures include a plurality of nozzle elements having a roughness defined upon the outside surface of said nozzle elements so as to reduce erosion due to the impact of fluidized catalyst particles within the catalytic regenerator.
摘要翻译： 催化再生器，喷嘴设计和适合于将再生空气引入催化裂化装置的方法，其基本上减少侵蚀引起的喷嘴故障，包括多个喷嘴元件，其具有限定在所述喷嘴元件的外表面上的粗糙度，以便减少由于 流化催化剂颗粒在催化再生器内的影响。
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公开(公告)号：US5106799A
公开(公告)日：1992-04-21
申请号：US646911
申请日：1991-01-28
申请人： Gary J. Green , Tsoung Y. Yan
发明人： Gary J. Green , Tsoung Y. Yan
CPC分类号： F23C10/002 , B01J38/30 , B01J8/28 , C10G11/182
摘要： A process and apparatus for fluidized bed combustion using a dense phase combustion zone over a dilute phase combustion zone. When used to regenerate FCC catalyst containing coke with relatively large amounts of NO.sub.x precursors, the catalyst is added to and partially regenerated in the dense phase zone and then falls down into the dilute phase zone. Most of the combustion air is added to the dilute phase and rises into and fluidizes the dense phase zone. NO.sub.x formed in the dilute phase is reduced to N.sub.2 in the dense phase.
摘要翻译： 一种用于在稀相燃烧区上使用密相燃烧区的流化床燃烧的方法和装置。 当用于再生具有相当大量的NOx前体的含有FCC的FCC催化剂时，将催化剂加入并在密相区域中部分再生，然后落入稀相区。 大部分燃烧空气被加入到稀相中并且上升并使稠相区流化。 在稀相中形成的NOx在密相中降低到N2。
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公开(公告)号：US4980048A
公开(公告)日：1990-12-25
申请号：US431953
申请日：1989-11-06
申请人： Tiberiu M. Leib , Ajit V. Sapre
发明人： Tiberiu M. Leib , Ajit V. Sapre
CPC分类号： B01J8/0015 , C10G11/182
摘要： An improved process and apparatus are disclosed for fluidized bed catalyst regeneration in a cross-flow type regenerator. A baffled coked catalyst inlet located within the dense bed of catalyst disperses and distributes coked catalyst flow in a direction generally normal to the direction of flow in the catalyst inlet. The baffle significantly reduces the stagnant regions in the bed.
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85.发明授权
公开(公告)号：US4923834A
公开(公告)日：1990-05-08
申请号：US325268
申请日：1989-03-17
申请人： David A. Lomas
发明人： David A. Lomas
CPC分类号： B01J38/30 , C10G11/182
摘要： The duty of a side-mounted, backmix type catalyst cooling zone is increased by having one conduit that delivers catalyst to the top of the cooling zone and another conduit that uses fluidizing gas to vent catalyst from the top of the cooling zone back to a regenerator. The catalyst cooling zone is used to cool catalyst in a fluidized catalytic cracking process. The cooling zone comprises a heat exchanger located remote from an FCC regenerator that supplies hot catalyst particles to the cooling zone from a dense phase catalyst bed. Hot catalyst particles enter the top end of the cooling zone through a first conduit. Fluidizing gas, added to the cooling zone for backmixing and heat transfer purposes, exits the top of the cooling zone through a second conduit that communicates the top of the cooler with a dilute phase catalyst zone in the regenerator. Gas flow into and through the second conduit transports catalyst from the cooling zone to the regenerator. In order to minimize any flow of fluidizing gas up the first conduit, a gas collection zone can be maintained in the upper end of the cooling zone.
摘要翻译： 通过具有将催化剂输送到冷却区的顶部的一个导管和使用流化气体将催化剂从冷却区的顶部排出回到再生器的另一个导管来增加侧装式背混式催化剂冷却区的负荷 。 催化剂冷却区用于在流化催化裂化过程中冷却催化剂。 冷却区包括位于远离FCC再生器的热交换器，其从致密相催化剂床向冷却区提供热催化剂颗粒。 热催化剂颗粒通过第一导管进入冷却区的顶端。 添加到用于回混和传热目的的冷却区中的流化气体通过将冷却器的顶部与再生器中的稀相催化剂区域连通的第二管道离开冷却区的顶部。 进入和穿过第二导管的气流将催化剂从冷却区输送到再生器。 为了最小化第一导管上的流化气体的任何流动，气体收集区可以保持在冷却区的上端。
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公开(公告)号：US4605811A
公开(公告)日：1986-08-12
申请号：US731348
申请日：1985-05-06
CPC分类号： C07C2/66 , B01J23/90 , C07C5/2512 , C07C2101/14 , C07C2521/04 , Y02P20/584
摘要： By the process of the present invention the activity of heterogeneous catalysts for reactions at normal and low pressures is restored or maintained. These catalysts can lose their activity as a result of the deposition, physisorption or chemisorption of organic or inorganic deactivating substances which are carried over into the reaction system or are formed as the result of side reactions in a chemical synthesis carried out with the aid of the catalyst. The activity is restored or maintained by using a pressure greater than the critical pressure of the fluid phase and a temperature higher than or equal to the critical temperature of the fluid phase. In this process, the pressure and temperature are applied for a period such that the deactivating substances are either removed from the catalyst or are not initially deposited thereon or absorbed or formed.
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87.发明授权Method and apparatus for controlling the regeneration of contaminated solids in a fluidized system 失效用于控制流化系统中污染固体再生的方法和装置
公开(公告)号：US3410793A
公开(公告)日：1968-11-12
申请号：US56051466
申请日：1966-06-27
申请人： TEXACO INC
发明人： STRANAHAN JOHN J , CHVATAL LELAND A , KITE JAMES C
CPC分类号： B01D3/009 , B01J38/30 , C10G11/18 , C10G11/187 , Y10S208/01
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公开(公告)号：US20220401924A1
公开(公告)日：2022-12-22
申请号：US17627832
申请日：2020-07-30
发明人： Brian M. P. Weiss , Changmin Chun , Sophie Liu , Federico Barrai , Paul F. Keusenkothen , Zachary D. Young
IPC分类号： B01J23/34 , B01J23/00 , B01J35/04 , B01J23/10 , B01J21/02 , B01J21/00 , B01J37/02 , B01J37/08 , B01J38/18 , B01J38/30
摘要： An active material useful in an oxidative dehydrogenation reactor system has an active phase, a support phase, and an intermediate composite phase. The active phase includes a transition metal oxide such as manganese oxide, which is reversibly oxidizable and/or reducible between oxidized and reduced states. The support phase includes an oxide of a IUPAC Group 2-14 element. The composite phase is a mixed metal oxide of the transition metal and the Group 2-14 element. The active phase can also include a promoter such as Na-W04 and/or a selectivity modifier such as A1 or ceria. Also, a reactor including the active material in a reactor, a method of making the active material, and a method of using the active material in a regenerative reaction process.
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公开(公告)号：US11298671B2
公开(公告)日：2022-04-12
申请号：US16609905
申请日：2018-05-03
发明人： Matthew T. Pretz
摘要： A method for processing a chemical stream includes contacting a feed stream with a catalyst in a reactor portion of a reactor system causing a reaction which forms a product stream. The method includes separating the product stream from the catalyst, passing the catalyst to a catalyst processing portion of the reactor system, processing the catalyst in the catalyst processing portion, and passing a portion of the catalyst from the catalyst processing portion of the reactor system into a catalyst withdrawal system that includes a catalyst withdrawal vessel and a transfer line coupling the catalyst withdrawal vessel to the catalyst processing portion. Each of the catalyst withdrawal vessel and the transfer line include an outer metallic shell and an inner refractory lining. The method further includes cooling the catalyst in the catalyst withdrawal vessel from greater than or equal to 680° C. to less than or equal to 350° C.
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公开(公告)号：US11046625B1
公开(公告)日：2021-06-29
申请号：US16888066
申请日：2020-05-29
申请人： Bio2Electric, LLC
摘要： A system for oxidative conversion of a mixed hydrocarbon feed stream to a product stream containing at least one olefin is provided. The system includes a plurality of reactors each capable of oxidatively dehydrogenating at least a portion of a hydrocarbon in the mixed hydrocarbon feed, and each reactor able to operate at different set of reaction conditions from other reactors in the plurality of reactors. All of the reactors use the same oxygen transfer agent to produce at least one olefin. In some embodiments, at least one reactor is optimized to oxidatively couple methane to produce ethylene, while other reactors are optimized to oxidatively dehydrogenate ethane to ethylene or to oxidatively dehydrogenate propane to ethylene and/or propylene. All of the reactors feed into a single regeneration unit for the oxygen transfer agent. A method of oxidatively converting the mixed hydrocarbon feed to an olefin is also provided.
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