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

IPC分类号： B01J8/18 ,  B01J38/30 ,  C10G11/18

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。

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

IPC分类号： B01J8/28 ,  B01J38/30 ,  C10G11/18 ,  F23C10/00

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。

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

IPC分类号： B01J38/30 ,  B01J8/00 ,  C10G11/18 ,  C10G47/02

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.

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

IPC分类号： B01J38/30 ,  C10G11/18

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。

公开(公告)号：US4605811A

公开(公告)日：1986-08-12

申请号：US731348

申请日：1985-05-06

申请人： Helmut Tiltscher ,  Helmut Wolf ,  Joachim Schelchshorn ,  Kurt Dialer

发明人： Helmut Tiltscher ,  Helmut Wolf ,  Joachim Schelchshorn ,  Kurt Dialer

IPC分类号： B01J38/00 ,  B01J23/90 ,  B01J38/30 ,  C07B61/00 ,  C07C5/23 ,  B01J21/20 ,  C07C2/68 ,  C07C5/25

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.

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

IPC分类号： B01D3/00 ,  B01J8/24 ,  B01J38/14 ,  B01J38/30 ,  C10G11/18 ,  G05D21/00

CPC分类号： B01D3/009 ,  B01J38/30 ,  C10G11/18 ,  C10G11/187 ,  Y10S208/01

公开(公告)号：US20240149248A1

公开(公告)日：2024-05-09

申请号：US18501308

申请日：2023-11-03

申请人： Ascend Performance Materials Operations LLC

发明人： Mikhail I. Khramov ,  C. Alex Diaz ,  Scott G. Moffatt

IPC分类号： B01J21/20 ,  B01J38/30

CPC分类号： B01J21/20 ,  B01J38/30

摘要： A process for regenerating a deactivated catalyst, the process comprising contacting a deactivated aluminosilicate zeolite catalyst comprising a nitrogen-containing contaminant with an oxidant to provide a regenerated catalyst comprising less than 0.5% contaminant and a regeneration by-product stream comprising nitrogen.

公开(公告)号：US11912947B1

公开(公告)日：2024-02-27

申请号：US18207356

申请日：2023-06-08

申请人： Chevron U.S.A. Inc.

发明人： Sven Ivar Hommeltoft

IPC分类号： C10L1/02 ,  B01J38/30 ,  B01J8/18 ,  B01J8/26 ,  B01J8/22

CPC分类号： C10L1/02 ,  B01J8/1827 ,  B01J8/228 ,  B01J8/26 ,  B01J38/30 ,  B01J2208/00769 ,  C10L2230/04 ,  C10L2290/12

摘要： A process involves (a) processing a lipid feedstock over a fluidized particulate catalyst in a gas-based stream in a fluid bed reactor to obtain a processed stream and spent catalyst comprising coke deposits, (b) continuously introducing the spent catalyst comprising the coke deposits to a catalyst regeneration unit, (c) continuously operating the catalyst regeneration unit to burn off the coke deposits from the spent catalyst to obtain a regenerated particulate catalyst, and (d) continuously introducing the regenerated particulate catalyst from the catalyst regeneration unit to the fluid bed reactor.

公开(公告)号：US20240051901A1

公开(公告)日：2024-02-15

申请号：US18257895

申请日：2021-12-15

申请人： Dow Global Technologies LLC

发明人： Lin Luo ,  Yang Yang ,  Adrianus Koeken ,  Brien Stears ,  Luis Bollmann ,  Andrzej Malek ,  Brian W. Goodfellow

IPC分类号： C07C5/333 ,  B01J23/62 ,  B01J21/04 ,  B01J23/96 ,  B01J38/30 ,  B01J38/02

CPC分类号： C07C5/3337 ,  B01J23/62 ,  B01J21/04 ,  B01J23/96 ,  B01J38/30 ,  B01J38/02 ,  C07C2523/62

摘要： According to one or more embodiments of the present disclosure, a method for producing olefins includes contacting a hydrocarbon-containing feed with a catalyst in a reactor portion of a reactor system to form an olefin-containing effluent, separating at least a portion of the olefin-containing effluent from the catalyst, passing the catalyst to a catalyst-processing portion of the reactor system and processing the catalyst to produce a processed catalyst and a combustion gas, passing the processed catalyst from the catalyst-processing portion to the reactor portion, and introducing a combustion additive to the reactor system when the combustion gas comprises one or more hydrocarbons in an amount greater than 5% of an LFL of the combustion gas at a temperature and pressure of the catalyst processing portion. The catalyst may include from 1 ppmw to 150 ppmw platinum. The combustion additive may include from 150 ppmw to 1,000 ppmw platinum.

公开(公告)号：US11577237B2

公开(公告)日：2023-02-14

申请号：US16714383

申请日：2019-12-13

申请人： UOP LLC

发明人： John J. Senetar ,  Lev Davydov

IPC分类号： B01J8/18 ,  B01J38/30 ,  C07C5/32

摘要： Higher temperature regenerated dehydrogenation catalyst is mixed with the lower temperature spent dehydrogenation catalyst from a dehydrogenation reaction to heat the spent catalyst. Air or other oxygen containing gas may be introduced to facilitate mixing. The mixing of hot regenerated catalyst with cooler spent catalyst increases the temperature of the spent catalyst and makes the coke on catalyst and in the supplemental fuel gas instantly ready to combust without the delay necessary to heat up the spent catalyst to combustion temperature. The regenerated dehydrogenation catalyst may be mixed with the spent dehydrogenation catalyst before the mixture of catalyst is contacted with the supplemental fuel gas. Combustion with fuel gas should be conditioned to avoid generation of a flame.