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公开(公告)号:US5792894A
公开(公告)日:1998-08-11
申请号:US932377
申请日:1997-09-07
摘要: A process is disclosed for alkylating a volatile aromatic compound with a light aliphatic mono-olefinic alkylating agent and concurrently condensing the alkylating agent in the presence of a solid alkylation- and condensation-promoting catalyst and at a temperature of at least the critical temperature of the reactant mixture and at a total pressure that is above the critical pressure of the reactant mixture.
摘要翻译: 公开了一种用轻脂肪族单烯烃烷基化剂烷基化挥发性芳香族化合物的方法,并且在固体烷基化和缩合促进催化剂的存在下并在至少临界温度的温度下同时缩合烷基化剂 反应物混合物和高于反应物混合物的临界压力的总压力。
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公开(公告)号:US5849965A
公开(公告)日:1998-12-15
申请号:US861475
申请日:1997-05-22
CPC分类号: C07C2/62 , C07C2/70 , C07C2527/03 , C07C2531/025 , Y02P20/582
摘要: In a multistage process, a relatively unreactive paraffinic substrate is alkylated in a primary stage while a more reactive aromatic substrate is alkylated in a secondary stage wherein at least a portion of the effluent from the primary stage is used as a diluent in the secondary stage. The alkylation reaction in each stage is catalyzed by an acid catalyst which is adsorbed on a particulate solid support.
摘要翻译: 在多级方法中,相对非反应性的链烷基底物在初级阶段被烷基化,而较活泼的芳族底物在次级阶段被烷基化,其中至少一部分来自初级阶段的流出物在次级阶段用作稀释剂。 每个阶段的烷基化反应由吸附在颗粒状固体载体上的酸催化剂催化。
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公开(公告)号:US06025534A
公开(公告)日:2000-02-15
申请号:US56212
申请日:1998-04-07
CPC分类号: C10G50/00 , C07C2/18 , C08F10/00 , C07C2527/173 , Y02P20/584
摘要: A method is provided for regenerating a fixed bed of olefin polymerization catalyst which can be performed without taking the catalyst bed out of service. The method involves the use of two different olefin-containing feedstocks, wherein the first feedstock is a conventional olefin-containing feedstock which contains little if any content of aromatic compounds. The second feedstock contains a significant concentration of aromatic compounds. In the practice of the invention, the second feedstock is substituted for the first feedstock whenever catalyst regeneration is deemed appropriate, and the flow of the second feedstock to the catalyst bed is continued for a period of time which is effective to at least partially regenerate the catalyst.
摘要翻译: 提供了一种用于再生烯烃聚合催化剂固定床的方法,其可以在不使催化剂床停止使用的情况下进行。 该方法涉及使用两种不同的含烯烃原料,其中第一种原料是常规的含烯烃原料,其含有少量芳族化合物。 第二原料含有显着浓度的芳族化合物。 在本发明的实践中,当催化剂再生被认为合适时,第二原料代替第一原料,并且将第二原料流向催化剂床的流程持续一段时间,这一时间段至少部分地再生 催化剂。
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公开(公告)号:US08937208B2
公开(公告)日:2015-01-20
申请号:US12493662
申请日:2009-06-29
申请人: Robert L. Mehlberg
发明人: Robert L. Mehlberg
CPC分类号: B01D5/0006 , B01D3/14 , B01D3/32 , B01D5/0063 , B01D5/0078 , B01D5/0084 , B01J19/24 , B01J2219/00103 , B01J2219/24 , C07C2/66 , F28D15/00
摘要: One exemplary embodiment can be a process for cooling a vent stream from a receiver. Generally, the process may include providing a refrigerant including at least one compound contained in the receiver so the refrigerant leaking into the receiver can be compatible with the process.
摘要翻译: 一个示例性实施例可以是用于从接收器冷却排气流的过程。 通常,该方法可以包括提供包含接收器中包含的至少一种化合物的制冷剂,使得泄漏到接收器中的制冷剂可以与该方法兼容。
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公开(公告)号:US08815082B2
公开(公告)日:2014-08-26
申请号:US13323217
申请日:2011-12-12
申请人: Lisa M. Wolschlag , Lev Davydov , Paolo Palmas , Robert L. Mehlberg , Mohammad-Reza Mostofi-Ashtiani , Daniel R. Johnson , Chad R. Huovie , Michael S. Sandacz , Peter J. Van Opdorp , Thomas W. Lorsbach , Karthikeyan Paramanandam
发明人: Lisa M. Wolschlag , Lev Davydov , Paolo Palmas , Robert L. Mehlberg , Mohammad-Reza Mostofi-Ashtiani , Daniel R. Johnson , Chad R. Huovie , Michael S. Sandacz , Peter J. Van Opdorp , Thomas W. Lorsbach , Karthikeyan Paramanandam
CPC分类号: B01J8/26 , B01J8/0025 , B01J8/003 , B01J8/004 , B01J8/0055 , B01J8/34 , C10G11/18 , C10G11/182 , C10G2300/1044 , C10G2300/107 , C10G2300/1074 , C10G2300/1077
摘要: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.
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公开(公告)号:US08747758B2
公开(公告)日:2014-06-10
申请号:US13323129
申请日:2011-12-12
申请人: Lev Davydov , Lisa M. Wolschlag , Paolo Palmas , Robert L. Mehlberg , Mohammad-Reza Mostofi-Ashtiani , Daniel R. Johnson , Chad R. Huovie , Michael S. Sandacz , Peter J. Van Opdorp , Thomas W. Lorsbach , Karthikeyan Paramanandam
发明人: Lev Davydov , Lisa M. Wolschlag , Paolo Palmas , Robert L. Mehlberg , Mohammad-Reza Mostofi-Ashtiani , Daniel R. Johnson , Chad R. Huovie , Michael S. Sandacz , Peter J. Van Opdorp , Thomas W. Lorsbach , Karthikeyan Paramanandam
IPC分类号: F27B15/08
CPC分类号: B01J8/0055 , B01J8/1863 , B01J8/1872 , B01J2208/0084 , B01J2208/00902 , B01J2208/00911 , C10G11/18
摘要: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.
摘要翻译: 用于混合再生和碳化催化剂的流的方法和装置包括使催化剂流进入和离开提升管的下部的室中。 在与烃进料接触之前,该室促进了催化剂流的混合以降低它们的温差。
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公开(公告)号:US20130148463A1
公开(公告)日:2013-06-13
申请号:US13323053
申请日:2011-12-12
申请人: Lev Davydov , Lisa M. Wolschlag , Paolo Palmas , Robert L. Mehlberg , Mohammad-Reza Mostofi-Ashtiani , Daniel R. Johnson , Chad R. Huovie , Michael S. Sandacz , Peter J. Van Opdorp , Thomas W. Lorsbach , Karthikeyan Paramanandam
发明人: Lev Davydov , Lisa M. Wolschlag , Paolo Palmas , Robert L. Mehlberg , Mohammad-Reza Mostofi-Ashtiani , Daniel R. Johnson , Chad R. Huovie , Michael S. Sandacz , Peter J. Van Opdorp , Thomas W. Lorsbach , Karthikeyan Paramanandam
IPC分类号: B01F15/02
CPC分类号: B01J8/0055 , B01J8/1863 , B01J8/1872 , B01J2208/0084 , B01J2208/00902 , B01J2208/00911 , C10G11/18
摘要: A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed.
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公开(公告)号:US08137631B2
公开(公告)日:2012-03-20
申请号:US12333262
申请日:2008-12-11
申请人: Paolo Palmas , Robert L. Mehlberg
发明人: Paolo Palmas , Robert L. Mehlberg
CPC分类号: C10G11/18 , C10G11/182 , C10G51/06 , C10G2300/1059 , C10G2300/107 , C10G2300/1088 , C10G2300/301 , C10G2300/4081 , C10G2400/02 , C10G2400/20
摘要: One exemplary embodiment can be a fluid catalytic cracking unit. The fluid catalytic cracking unit can include a first riser, a second riser, and a disengagement zone. The first riser can be adapted to receive a first feed terminating at a first reaction vessel having a first volume. The second riser may be adapted to receive a second feed terminating at a second reaction vessel having a second volume. Generally, the first volume is greater than the second volume. What is more, the disengagement zone can be for receiving a first mixture including at least one catalyst and one or more products from the first reaction vessel, and a second mixture including at least one catalyst and one or more products from the second reaction vessel. Typically, the first mixture is isolated from the second mixture.
摘要翻译: 一个示例性实施方案可以是流化催化裂化装置。 流化催化裂化装置可以包括第一提升管,第二提升管和分离区。 第一提升管可适于接收终止于具有第一容积的第一反应容器的第一进料。 第二提升管可以适于接收在具有第二容积的第二反应容器处终止的第二进料。 通常,第一体积大于第二体积。 此外,分离区可以用于接收包含至少一种催化剂和来自第一反应容器的一种或多种产物的第一混合物,以及包含至少一种催化剂和来自第二反应容器的一种或多种产物的第二混合物。 通常,第一混合物与第二混合物分离。
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公开(公告)号:US20110108458A1
公开(公告)日:2011-05-12
申请号:US12614938
申请日:2009-11-09
CPC分类号: C10G51/026 , C10G11/18
摘要: A process is disclosed for catalytically converting two feed streams. The feed to a first catalytic reactor may be contacted with product from a second catalytic reactor to effect heat exchange between the two streams and to transfer catalyst from the product stream to the feed stream. The feed to the second catalytic reactor may be a portion of the product from the first catalytic reactor.
摘要翻译: 公开了一种用于催化转化两种进料流的方法。 可将来自第一催化反应器的进料与来自第二催化反应器的产物接触以实现两种流之间的热交换并将催化剂从产物流转移至进料流。 第二催化反应器的进料可以是来自第一催化反应器的产物的一部分。
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公开(公告)号:US07758820B2
公开(公告)日:2010-07-20
申请号:US11614830
申请日:2006-12-21
IPC分类号: B01D50/00
CPC分类号: C10G11/18 , C10G11/182 , Y02C20/10
摘要: Apparatus and process is provided for increasing mixing in a regenerator. Streamlines of gas and some catalyst may form in a regenerator as a result of cyclone inlet horns positioned in the same direction. Overall mixing in the regenerator may decrease because of these streamlines. A dampening device may be used to interrupt the streamlines and increase mixing in the regenerator. The dampening device may be a baffle and direct streamlines from the outside of the chamber toward the center to collide and mix. In another embodiment, a dampening device may be a secondary disengager such as a T-disengager or an inverted can arrangement that may discharge gas and catalyst near the center of the upper chamber and interrupt the streamlines. In another embodiment, a dampening device may have swirl arms that redirect stream lines counter to the direction of flow.
摘要翻译: 提供装置和方法用于增加再生器中的混合。 由于旋风入口角位于同一方向,气体和一些催化剂的流线可能在再生器中形成。 由于这些流线,整个再生器中的混合可能会减少。 阻尼装置可用于中断流线并增加再生器中的混合。 阻尼装置可以是挡板,并且从腔室的外部朝向中心直接流线以碰撞和混合。 在另一个实施例中,阻尼装置可以是次级分离器,例如T分离器或倒置罐装置,其可以在上部室的中心附近排出气体和催化剂并中断流线。 在另一个实施例中,阻尼装置可以具有将流线重新定向到流动方向的旋转臂。
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