公开(公告)号：US5376607A

公开(公告)日：1994-12-27

申请号：US16211

申请日：1993-02-11

申请人： Paul A. Sechrist

发明人： Paul A. Sechrist

IPC分类号： A61K31/43 ,  B01J8/12 ,  B01J23/90 ,  B01J23/96 ,  B01J38/20 ,  C10G35/12 ,  B01J38/24 ,  B01J38/44

CPC分类号： C10G35/12 ,  B01J23/90 ,  B01J23/96 ,  B01J38/20 ,  B01J8/12

摘要： A semi-continuous process for combusting coke from catalyst particles in a fixed bed is improved by rejecting from the combustion process a high moisture content flue gas stream which is produced by the combustion of a relatively large proportion of the hydrogen in the coke that enters the combustion section during an early stage of combustion. By operating the early stage of combustion at conditions to increase the rate of combustion of the hydrogen in the coke relative to that of the carbon in the coke, the overall equilibrium level of water in a flue gas/recycle gas that circulates through the process is lowered. The high moisture content flue gas stream from the early stage of combustion is rejected separately from the process. Subdivision of the bed and separation of the flue gas streams can be easily accomplished in a vertically arranged catalyst particle bed by adding baffles to the recycle gas distribution space that subdivide the distribution space into separate chambers and by adding baffles to the flue gas collection space that subdivide the collection space into separate chambers. The amount of high moisture content flue gas withdrawn from the process can be equal to the amount of the make-up gas streams entering the flue gas/recycle gas loop.

摘要翻译： 通过从燃烧过程中排除高含水量的烟道气流，可以改善在固定床中从催化剂颗粒燃烧焦炭的半连续方法，该高含水量的烟道气流是通过进入焦炭中的相当大比例的焦炭中的氢的燃烧产生的 燃烧段在燃烧的早期阶段。 通过在提高焦炭中氢的燃烧速率相对于焦炭中的碳的燃烧速率的条件下操作燃烧的早期阶段，通过该过程循环的烟道气/循环气体中的水的总平衡水平为 降低 来自燃烧早期的高含水量烟气流与该方法分开拒绝。 床的细分和烟道气流的分离可以在垂直布置的催化剂颗粒床中容易地实现，通过向循环气体分配空间添加挡板，将分配空间细分成分离的室，并且通过向烟道气收集空间添加挡板， 将收集空间细分为不同的房间。 从该方法抽出的高含水量烟道气的量可以等于进入烟道气/循环气回路的补充气流的量。

公开(公告)号：US5338440A

公开(公告)日：1994-08-16

申请号：US998331

申请日：1992-12-30

申请人： Paul A. Sechrist ,  Roger R. Lawrence ,  Larry D. Richardson

发明人： Paul A. Sechrist ,  Roger R. Lawrence ,  Larry D. Richardson

IPC分类号： B01J8/00 ,  C10G35/12 ,  C10G35/10

CPC分类号： C10G35/12 ,  B01J8/001 ,  B01J8/0015

摘要： A controlled method of transporting catalyst between two zones while inhibiting communication between the atmospheres of the zones is disclosed. Communication between the zones is inhibited by controlling pressure differences. The two zones are separated by a means to lift catalyst, which results in a savings in construction costs. This invention is adaptable to a multitude of processes for the catalytic conversion of hydrocarbons in which deactivated catalyst particles are regenerated.

摘要翻译： 公开了一种抑制两个区域之间的催化剂的控制方法，同时抑制区域的气氛之间的连通。 通过控制压力差来抑制区域之间的通信。 这两个区域通过提升催化剂的手段分开，从而节省了建筑成本。 本发明适用于催化转化烃的多种方法，其中失活的催化剂颗粒被再生。

公开(公告)号：US5001095A

公开(公告)日：1991-03-19

申请号：US437149

申请日：1989-11-16

申请人： Paul A. Sechrist

发明人： Paul A. Sechrist

IPC分类号： B01J8/12 ,  B01J23/90 ,  B01J23/96 ,  B01J38/20 ,  C10G35/12

CPC分类号： B01J8/12 ,  B01J23/90 ,  B01J23/96 ,  B01J38/20 ,  C10G35/12

摘要： A semi-continuous process for combusting coke from catalyst particles in a fixed bed is improved by segregating flue gas from the combustion process into a high moisture content flue gas stream which is withdrawn from the process and a relatively low moisture content flue gas stream which is combined with an oxygen-containing make-up gas and recycled to the process. When coke is combusted in a fixed bed to which catalyst is added at an inlet and withdrawn from an outlet on a semi-continuous basis, hydrogen from the coke is quickly combusted whereas less volatile coke components are more slowly combusted. As a result, flue gas passing through the catalyst that has just entered the bed will have the highest water concentration. By separately recovering the flue gas stream having this high moisture content, the overall equilibrium level of water in a flue gas/recycle gas that circulates through the process is lowered. Segregation of flue gas can be easily accomplished in a vertically arranged catalyst bed by adding a baffle to the flue gas collection space that subdivides the collection space into separate chambers. The amount of high moisture content withdrawn from the process can be equal to the amount of make-up gas entering the flue gas/recycle gas loop. A larger amount of high moisture content flue gas than that vented from the process can be collected with the non-vented gas passing through a drier and other treatment steps before re-entering the process as part of the make-up gas. Using the unvented portion of the high moisture content flue gas increases the efficiency of using driers since a relatively large amount of water can be removed from a small volume of flue gas.

摘要翻译： 通过将烟道气从燃烧过程分离成从该方法中排出的高水分含量烟道气流和相对较低水分含量的烟道气流来改善从固定床中的催化剂颗粒燃烧焦炭的半连续方法， 结合含氧补充气体并再循环到该过程中。 当焦炭在固定床中在入口处加入催化剂并在半连续基础上从出口排出的固定床中燃烧时，来自焦炭的氢气被快速燃烧，而较不易挥发的焦炭组分更慢地燃烧。 结果，通过刚刚进入床层的催化剂的烟气将具有最高的水分浓度。 通过单独回收具有高水分含量的烟道气流，通过该方法循环的烟道气/循环气体中的水的总平衡水平降低。 通过向烟气收集空间添加挡板，可以在垂直布置的催化剂床中容易地实现烟道气的分离，该收集空间将收集空间细分成不同的室。 从该方法中提取的高含水量可以等于进入烟气/循环气回路的补充气体的量。 与通过该方法排放的烟气相比，可以收集比通过干燥器的非排气气体和其它处理步骤更大量的高水分含量烟道气，然后作为补充气体的一部分再次进入该过程。 使用高含水量烟道气的未经泄漏的部分提高了使用干燥器的效率，因为相对大量的水可以从少量烟道气中去除。

公开(公告)号：US4980325A

公开(公告)日：1990-12-25

申请号：US364754

申请日：1989-06-12

申请人： Paul A. Sechrist

发明人： Paul A. Sechrist

IPC分类号： B01J38/44 ,  C10G35/12

CPC分类号： B01J8/12 ,  B01J38/44 ,  C10G35/12

摘要： A method for continuously or semi-continuously regenerating reforming catalyst by the recirculation of a gas stream advantageously controls the water content by using an oxygen-deficient makeup gas stream to supply the oxygen for combustion of coke. The volume of makeup gas entering the process is increased by reducing its oxygen concentration so that additional waste gases from the combustion of coke on the catalyst can be vented. The venting of additional gas from the circulating gas stream lowers the overall water concentration during the combustion of coke. The oxygen-deficient makeup gas stream can be supplied by oxygen and nitrogen separation from air. Where the production of the oxygen-deficient makeup gas stream also produces an oxygen-enriched stream, the oxygen-enriched stream is advantageously added to a catalyst reconditioning step for an increased dispersion of metals in the catalyst.

摘要翻译： 通过气流的再循环连续或半连续地再生重整催化剂的方法有利地通过使用缺氧补充气流来供应氧来燃烧焦炭来控制含水量。 进入该过程的补充气体的体积通过降低其氧浓度而增加，使得可以排出来自催化剂上焦炭燃烧的附加废气。 来自循环气流的附加气体的排放降低焦炭燃烧期间的总体水分浓度。 缺氧补充气流可以通过氧气和氮气分离从空气中提供。 当缺氧补充气流的产生也产生富氧流时，有利地将富氧流加入到催化剂再生步骤中，以增加金属在催化剂中的分散。

公开(公告)号：US4872969A

公开(公告)日：1989-10-10

申请号：US173831

申请日：1988-03-28

申请人： Paul A. Sechrist

发明人： Paul A. Sechrist

IPC分类号： B01J3/02 ,  B01J8/00 ,  C10G35/12

CPC分类号： B01J8/0035 ,  B01J3/02 ,  C10G35/12

摘要： A method and apparatus are provided for controlling the transfer of particles between zones of different pressure using particle collection and particle transfer conduits. The solids are moved from a low pressure zone to a high pressure zone by means of a valveless lock hopper system that vents all of the gas from the collection zones through the particle collection conduits. Venting gas from the collection zones through the transfer conduits prevents erosion of control valves and eliminates the need for filters which are prone to clogging. The venting of gas is accomplished by varying the size of the transfer conduits between zones. The invention is particularly applicable in the regeneration of catalyst used in hydrocarbon conversion processes such as catalytic reforming.

摘要翻译： 提供了一种方法和装置，用于使用颗粒收集和颗粒转移导管来控制不同压力的区域之间的颗粒的转移。 固体通过无阀闭锁料斗系统从低压区移动到高压区，通过颗粒收集管排出收集区中的所有气体。 通过输送导管从收集区排出气体可防止控制阀的侵蚀，并且不需要易于堵塞的过滤器。 气体的排放通过改变区域之间的输送管道的尺寸来实现。 本发明特别适用于烃转化过程如催化重整中所用催化剂的再生。

公开(公告)号：US09422478B2

公开(公告)日：2016-08-23

申请号：US13810405

申请日：2011-07-08

申请人： Paolo Palmas ,  Paul A. Sechrist ,  Sid Kulprathipanja ,  Stanley J. Frey ,  Barry Freel ,  Daniel N. Myers ,  Vincenza Myers

发明人： Paolo Palmas ,  Paul A. Sechrist ,  Sid Kulprathipanja ,  Stanley J. Frey ,  Barry Freel ,  Daniel N. Myers

IPC分类号： F23B90/00 ,  C10B23/00 ,  C10B49/22 ,  C10B53/02 ,  C10C5/00 ,  C10K1/02 ,  F23G5/027 ,  F23G5/30 ,  F23G5/46 ,  F23G5/50 ,  F23G7/10

CPC分类号： C10B23/00 ,  C10B49/22 ,  C10B53/02 ,  C10C5/00 ,  C10K1/026 ,  F23G5/0273 ,  F23G5/30 ,  F23G5/46 ,  F23G5/50 ,  F23G7/10 ,  F23G2201/303 ,  F23G2201/304 ,  F23G2201/601 ,  F23G2206/10 ,  F23G2900/50205 ,  Y02E50/14 ,  Y02P20/133 ,  Y02P20/145 ,  Y02P30/20

摘要： Char-handling processes for controlling overall heat balance, ash accumulation, and afterburn in a reheater are provided. Carbonaceous biomass feedstock is pyrolyzed using a heat transfer medium forming pyrolysis products and a spent heat transfer medium. The spent heat transfer medium is separated into segregated char and char-depleted spent heat transfer medium. The char-depleted spent heat transfer medium is introduced into a dense bed of heat transfer medium fluidized by a stream of oxygen-containing regeneration gas. All or a portion of the segregated char is combusted in the dense bed using the stream of oxygen-containing regeneration gas. A portion of the segregated char may be exported out of the pyrolysis system to control the overall heat balance and ash accumulation.

公开(公告)号：US20120271080A1

公开(公告)日：2012-10-25

申请号：US13090783

申请日：2011-04-20

申请人： Paul A. Sechrist ,  Gregory Werba ,  Mohamed Shakur ,  Steven Lankton ,  Steven Kozup ,  Bing Sun

发明人： Paul A. Sechrist ,  Gregory Werba ,  Mohamed Shakur ,  Steven Lankton ,  Steven Kozup ,  Bing Sun

IPC分类号： C07C4/00 ,  C07C5/327

CPC分类号： C07C5/2732 ,  C07C5/3337 ,  C07C2523/42 ,  C07C11/06 ,  C07C9/12

摘要： Embodiments of processes for producing propylene from paraffins are provided. The process comprises the steps of combining an effluent that comprises propylene and propane from a paraffin dehydrogenation reactor with an offgas stream that comprises propane to form a combined effluent stream. The combined effluent stream is separated into a propylene product stream and a propane-rich recycle stream. The propane-rich recycle stream is introduced to the paraffin dehydrogenation reactor operating at dehydrogenation conditions to convert propane in the propane-rich recycle stream to propylene.

摘要翻译： 提供了从石蜡生产丙烯的方法的实施方案。 该方法包括将来自石蜡脱氢反应器的包含丙烯和丙烷的流出物与包含丙烷的废气流组合以形成组合的流出物流的步骤。 将合并的流出物流分离成丙烯产物流和富含丙烷的再循环流。 将富丙烷循环流引入在脱氢条件下操作的链烷烃脱氢反应器，以将丙烷富循环物流中的丙烷转化为丙烯。

公开(公告)号：US08192691B2

公开(公告)日：2012-06-05

申请号：US12858888

申请日：2010-08-18

申请人： David J. Fecteau ,  Paul A. Sechrist ,  Christopher Naunheimer

发明人： David J. Fecteau ,  Paul A. Sechrist ,  Christopher Naunheimer

IPC分类号： F27B15/08 ,  B01J8/08 ,  C10G35/10

CPC分类号： C10G11/14 ,  B01J8/125 ,  B01J2219/00006 ,  C10G35/10 ,  C10G49/10 ,  C10G2300/4012

摘要： One exemplary embodiment can include an apparatus for transferring catalyst from a regeneration zone to a reaction zone in a hydrocarbon conversion unit. The hydrocarbon conversion unit can include a transfer vessel, and first, second, and third lines. The transfer vessel can transfer regenerated catalyst from the regeneration zone at a first pressure to the reaction zone at a second pressure where the second pressure is greater than the first pressure. Generally, the first line communicates the catalyst to the transfer vessel and is coupled to a first valve to allow catalyst into the transfer vessel and the second line communicates the catalyst from the transfer vessel and is coupled to a second valve to allow catalyst out of the transfer vessel. The third line for allowing the passage of gas therethrough may be at a pressure higher than the first pressure having a first portion communicating with the transfer vessel and having a second portion coupled to third and fourth valves. Each of the third and fourth valves can have a first position that is open and a second position that is closed, which may correspond, respectively, to the opening and closing of the first and second valves to allow gas to pass therethrough.

摘要翻译： 一个示例性实施例可以包括用于将催化剂从再生区转移到烃转化单元中的反应区的装置。 烃转化单元可以包括转移容器，以及第一，第二和第三管线。 转移容器可以在第二压力大于第一压力的第二压力下将再生催化剂在第一压力下从再生区转移到反应区。 通常，第一管线将催化剂连接到转移容器并且耦合到第一阀以允许催化剂进入转移容器，并且第二管线将催化剂与转移容器连通并且联接到第二阀，以使催化剂脱离 转运船。 用于允许气体通过的第三条线可以处于比第一压力高的压力，该第一压力具有与转移容器连通的第一部分，并具有连接到第三和第四阀的第二部分。 第三阀和第四阀中的每一个可以具有打开的第一位置和关闭的第二位置，其可分别对应于第一和第二阀的打开和关闭以允许气体通过。

公开(公告)号：US08177198B2

公开(公告)日：2012-05-15

申请号：US12147011

申请日：2008-06-26

申请人： Paul A. Sechrist

发明人： Paul A. Sechrist

IPC分类号： B01F3/04

CPC分类号： C21D1/667 ,  B01J8/008 ,  B01J8/0453 ,  C21D1/62

摘要： A liquid distribution device is presented for the collection and distribution of liquid between reactor or adsorbent beds. The device includes a liquid collection tray, a mixing chamber in fluid communication with the liquid collection tray, a liquid distribution tray in fluid communication with the mixing chamber, and a plurality of nozzles for delivering the liquid over the top of a reactor or adsorbent bed.

摘要翻译： 液体分配装置用于在反应器或吸附剂床之间收集和分配液体。 该装置包括液体收集托盘，与液体收集托盘流体连通的混合室，与混合室流体连通的液体分配托盘以及用于将液体输送到反应器或吸附床顶部的多个喷嘴 。

公开(公告)号：US20120074038A1

公开(公告)日：2012-03-29

申请号：US12890904

申请日：2010-09-27

申请人： John A. Petri ,  Peter Kokayeff ,  Paul A. Sechrist

发明人： John A. Petri ,  Peter Kokayeff ,  Paul A. Sechrist

IPC分类号： C10G65/10 ,  C10G47/02

CPC分类号： C10G65/04 ,  C10G65/10 ,  C10G65/12

摘要： A process for hydroprocessing a hydrocarbonaceous feedstock in a continuous liquid phase utilizes a hydroprocessing catalyst comprising pills that have a largest dimension that averages no more than 1.27 mm ( 1/20 inch) and more than 100 nm to produce a hydrocarbonaceous product stream.

摘要翻译： 用于在连续液相中加氢处理烃原料的方法使用包含平均不大于1.27mm（1/20英寸）且大于100nm的最大尺寸的丸剂的加氢处理催化剂以产生烃产物流。