-
公开(公告)号：US5591417A
公开(公告)日：1997-01-07
申请号：US184536
申请日：1994-01-21
IPC分类号： B01D53/04 , B01D53/48 , B01D53/50 , B01D53/52 , B01D53/86 , C01B17/04 , B01D53/46 , B01D53/81 , B01D53/96
CPC分类号： B01D53/04 , B01D53/485 , B01D53/508 , B01D53/52 , B01D53/523 , B01D53/8609 , B01D53/8637 , C01B17/0408 , C01B17/0456 , C01B17/0473 , B01D2253/104 , B01D2257/302 , B01D2259/403 , B01D2259/41
摘要： Removing sulfur oxide, carbon monoxide and nitrogen oxide in a flue gas stream by combusting fuel in the combustor with a reduced amount of oxygen to convert all sulfur-containing species in the flue gas stream to sulfur oxide, and to partially convert carbon monoxide therein to carbon dioxide, thus forming a sulfur oxide enriched gas stream having between at least about 500 ppm carbon monoxide and a consequential reduced amount of nitrogen oxide. The sulfur oxide enriched gas stream is contacted with a solid adsorbent bed for adsorbing the sulfur oxides in the form of inorganic sulfates and/or sulfur oxides. The solid adsorbent contains a catalytic oxidation promoter for oxidizing the carbon monoxide gas stream to carbon dioxide, thus forming a sulfur oxide and carbon monoxide depleted stream with the consequential reduced amount of nitrogen oxide for disposal. The adsorbent bed is then contacted with a reducing gas stream for regenerating the adsorbent bed to form a hydrogen sulfide and/or sulfur dioxide bearing stream.
摘要翻译： 通过在燃烧器中燃烧燃料中的氧气来减少烟道气中的硫氧化物，一氧化碳和氮氧化物，以将烟道气中的所有含硫物质转化为硫氧化物，并将其中的一氧化碳部分转化为 从而形成富含硫氧化物的气流，其具有至少约500ppm的一氧化碳和随之减少的氮氧化物的量。 富含硫氧化物的气流与固体吸附剂床接触，以吸附无机硫酸盐和/或硫氧化物形式的硫氧化物。 固体吸附剂含有用于将一氧化碳气流氧化成二氧化碳的催化氧化促进剂，从而形成硫氧化物和一氧化碳贫化物流，从而减少氮氧化物的用量以便处置。 然后将吸附床与还原气流接触，以再生吸附剂床，以形成含硫化氢和/或含二氧化硫的流。
-
公开(公告)号：US5547648A
公开(公告)日：1996-08-20
申请号：US435914
申请日：1995-05-05
IPC分类号： B01D53/04 , B01D53/48 , B01D53/50 , B01D53/52 , B01D53/86 , C01B17/04 , B01D53/46 , B01D53/81 , B01D53/96
CPC分类号： B01D53/12 , B01D53/04 , B01D53/485 , B01D53/508 , B01D53/52 , B01D53/523 , B01D53/8609 , B01D53/8637 , C01B17/0408 , C01B17/0456 , C01B17/0473 , B01D2257/302 , B01D2257/404 , B01D2257/502
摘要： Removing sulfur oxide and carbon monoxide in a flue gas stream by combusting fuel in the combustor with a reduced amount of oxygen to partially convert carbon monoxide therein to carbon dioxide and sufficient to convert all sulfur-containing species in the flue gas stream to sulfur oxide and thus form a sulfur oxide enriched gas stream having between at least about 500 ppm carbon monoxide. The sulfur oxide enriched gas stream is contacted with a solid adsorbent bed for adsorbing the sulfur oxides in the form of inorganic sulfates and/or sulfur oxides. The solid adsorbent contains a catalytic oxidation promoter for oxidizing the carbon monoxide gas stream to carbon dioxide, thus forming a sulfur oxide and carbon monoxide depleted stream for disposal. The adsorbent bed is then contacted with a reducing gas stream for regenerating the adsorbent bed to form a hydrogen sulfide and/or sulfur dioxide bearing stream.
摘要翻译： 通过在燃烧器中燃烧燃料中的燃料以减少氧气量以将其中的一氧化碳部分地转化为二氧化碳并足以将烟道气中的所有含硫物质转化成硫氧化物和在烟道气流中除去硫化氢和一氧化碳， 从而形成富含硫氧化物的气流，其具有至少约500ppm的一氧化碳。 富含硫氧化物的气流与固体吸附剂床接触，以吸附无机硫酸盐和/或硫氧化物形式的硫氧化物。 固体吸附剂含有用于将一氧化碳气流氧化成二氧化碳的催化氧化促进剂，从而形成硫氧化物和一氧化碳贫化物流以便处置。 然后将吸附床与还原气流接触，以再生吸附剂床，以形成含硫化氢和/或含二氧化硫的流。
-
公开(公告)号：US5458861A
公开(公告)日：1995-10-17
申请号：US184708
申请日：1994-01-21
IPC分类号： B01D53/04 , B01D53/48 , B01D53/50 , B01D53/52 , B01D53/77 , B01D53/86 , C01B17/04 , C10L3/10 , B01J8/00
CPC分类号： B01D53/485 , B01D53/04 , B01D53/508 , B01D53/52 , B01D53/523 , B01D53/8609 , B01D53/8637 , C01B17/0408 , C01B17/0456 , C01B17/0473 , B01D2253/104 , B01D2257/302 , B01D2259/403 , B01D2259/41
摘要： A multi-bed process of removing sulfur oxides and/or other combustible sulfur-containing compounds from a gas stream including combusting the other combustible sulfur-compounds when present in the gas stream with air or oxygen to convert such sulfur-containing compounds to sulfur oxide and form a sulfur oxide enriched gas stream. The sulfur oxide enriched gas stream is contacted with first and second serially connected solid adsorbent beds for adsorbing the sulfur oxides in the form of inorganic sulfates and/or sulfur oxides. A third adsorbent bed is contacted with a reducing gas stream to regenerate the bed by reducing the retained inorganic sulfates and/or sulfur oxides to hydrogen sulfide and/or sulfur dioxide, to thereby form a hydrogen sulfide and/or sulfur dioxide bearing stream. The feeds to each of the beds are realigned to place the second and third beds in series with the sulfur oxide and/or sulfur dioxide enriched stream being fed to the second bed and to place the first bed in a regenerative mode. Thereafter, the foregoing steps are repeated whereby each of the three beds are sequentially placed in an initial bed mode in the series, a regenerative mode, and a second bed mode in the series.
摘要翻译： 一种从气流中除去硫氧化物和/或其它可燃含硫化合物的多床方法，包括当气流与空气或氧气存在时燃烧其它可燃硫化合物，以将这种含硫化合物转化成硫氧化物 并形成富含硫氧化物的气流。 富含硫氧化物的气流与第一和第二串联连接的固体吸附剂床接触，以吸附无机硫酸盐和/或硫氧化物形式的硫氧化物。 通过将保留的无机硫酸盐和/或硫氧化物还原成硫化氢和/或二氧化硫，第三吸附剂床与还原气流接触以再生床，从而形成含硫化氢和/或二氧化硫的物流。 将每个床的进料重新对准以将第二和第三床与加入到第二床中的硫氧化物和/或二氧化硫浓缩物流串联并将第一床置于再生模式。 此后，重复上述步骤，其中三个床中的每一个顺序地以串联的初始床模式，串联的再生模式和第二床模式放置。
-
公开(公告)号：US08852326B2
公开(公告)日：2014-10-07
申请号：US13041597
申请日：2011-03-07
IPC分类号： B01D53/02 , C01B39/24 , B01J20/30 , B01J20/28 , B01J29/12 , B01J29/16 , B01J35/02 , B01J20/18 , B01J35/00 , C01B39/20
CPC分类号： B01D53/02 , B01D2253/108 , B01D2255/50 , B01D2256/12 , B01D2257/504 , B01J20/18 , B01J20/186 , B01J20/28004 , B01J20/2803 , B01J20/28057 , B01J20/28071 , B01J20/3007 , B01J20/3042 , B01J29/12 , B01J29/123 , B01J29/126 , B01J29/16 , B01J29/163 , B01J29/166 , B01J35/002 , B01J35/0026 , B01J35/023 , C01B39/20 , C01B39/24 , C01P2006/12 , C01P2006/14 , C01P2006/16 , Y02C10/08 , Y02P20/152
摘要： This invention relates to aggregates of small particles of synthetic faujasite zeolite. Small primary particles of zeolite are clustered into larger secondary particles. The observable average width of the primary particles may be 0.3 micron or less and the observable average width of the secondary particles may be 0.8 micron or more. The silica to alumina ratio of the zeolite may be less than 4:1.
摘要翻译： 本发明涉及合成八面沸石的小颗粒的聚集体。 沸石的小一次颗粒聚集成较大的次级颗粒。 一次颗粒的可观察平均宽度可以为0.3微米或更小，并且二次颗粒的可观察到的平均宽度可以为0.8微米或更大。 沸石的二氧化硅与氧化铝之比可以小于4:1。
-
公开(公告)号：US20110021844A1
公开(公告)日：2011-01-27
申请号：US12933700
申请日：2009-02-19
IPC分类号： C07C49/303
CPC分类号： C07C407/00 , C07C37/07 , C07C37/08 , C07C45/006 , C07C45/53 , C07C2601/14 , C07C39/04 , C07C49/403 , C07C409/14
摘要： In a process for producing cyclohexanone, cyclohexylbenzene is oxidized to produce cyclohexylbenzene hydroperoxide and then the resultant cyclohexylbenzene hydroperoxide is cleaved to produce an effluent stream comprising phenol and cyclohexanone. At least a portion of the effluent stream is then fed to at least one hydrogenation reaction zone, where the effluent stream portion is contacted with hydrogen in the presence of a hydrogenation catalyst under conditions effective to convert at least part of the phenol in the effluent portion into cyclohexanone.
摘要翻译： 在制备环己酮的方法中，环己基苯被氧化以产生环己基苯氢过氧化物，然后将所得环己基苯氢过氧化物切割以产生包含苯酚和环己酮的流出物流。 然后将至少一部分流出物流送入至少一个氢化反应区，在氢化催化剂存在下，在有效地将至少部分苯酚在流出物部分中转化的条件下，流出料流部分与氢气接触 加入环己酮。
-
公开(公告)号：US20100317895A1
公开(公告)日：2010-12-16
申请号：US12747295
申请日：2009-01-13
CPC分类号： C07C409/14 , C07C13/28 , C07C37/08 , C07C45/53 , C07C407/00 , C07C2601/14 , C07C49/08 , C07C39/04
摘要： In a process for producing cyclohexylbenzene, hydrogen and a liquid feed comprising benzene are introduced into a reaction zone and are contacted in the reaction zone under hydroalkylation conditions to produce cyclohexylbenzene. An effluent stream comprising cyclohexylbenzene and unreacted benzene is removed from the reaction zone and is divided into at least first and second portions, wherein the mass ratio of the effluent stream first portion to the effluent stream second portion is at least 2:1. The effluent stream first portion is then cooled and the cooled effluent stream first portion is recycled to the reaction zone.
摘要翻译： 在生产环己基苯的方法中，将氢和含苯的液体原料引入反应区，并在加氢烷基化条件下在反应区中接触以制备环己基苯。 将包含环己基苯和未反应苯的流出物流从反应区除去，并分成至少第一和第二部分，其中流出物流第一部分与流出物流第二部分的质量比至少为2:1。 然后将流出物流第一部分冷却，将冷却的流出物流第一部分再循环至反应区。
-
公开(公告)号：US20090187047A1
公开(公告)日：2009-07-23
申请号：US12162970
申请日：2007-02-08
申请人： Jihad M. Dakka , Jon E. Stanat , Francisco M. Benitez , John S. Buchanan , Jane C. Cheng , Jeffrey T. Elks
发明人： Jihad M. Dakka , Jon E. Stanat , Francisco M. Benitez , John S. Buchanan , Jane C. Cheng , Jeffrey T. Elks
CPC分类号： C07C409/08 , C07C37/08 , C07C45/53 , C07C407/00 , C07C49/10 , C07C39/04
摘要： A process for producing phenol and methyl ethyl ketone comprises contacting benzene and a C4 alkylating agent under alkylation conditions and in the presence of an alkylation catalyst comprising at least one molecular sieve of the MCM-22 family to produce an alkylation effluent comprising secbutylbenzene; wherein the contacting is conducted in a plurality of reaction zones and the C4 alkylating agent secbutylbenzene fraction is recovered from the alkylation effluent and comprises at least 95 wt % sec-butylbenzene, less than 100 wt ppm of C8+ olefins, and less than 0.5 wt % of isobutylbenzene and tert-butylbenzene. The sec-butylbenzene fraction is then oxidized to produce sec-butylbenzene hydroperoxide and the hydroperoxide is cleaved to produce phenol and methyl ethyl ketone.
摘要翻译： 一种生产苯酚和甲基乙基酮的方法包括在烷基化条件下和在包含至少一种MCM-22族分子筛的烷基化催化剂的存在下使苯和C4烷基化剂接触以产生包含二丁基苯的烷基化流出物; 其中所述接触在多个反应区中进行，并且所述C4烷基化剂仲丁苯部分从所述烷基化流出物中回收，并且包含至少95重量％的仲丁基苯，小于100重量ppm的C 8+烯烃和小于0.5重量％ 的异丁基苯和叔丁基苯。 然后将仲丁基馏分氧化以产生仲丁基苯氢过氧化物，并将氢过氧化物裂解以产生苯酚和甲基乙基酮。
-
8.发明授权Vapor/liquid contacting cyclone with device to prevent backmixing and process for using the same 失效蒸汽/液体接触式旋风分离器与装置防止回混和使用该混合物
公开(公告)号：US6105941A
公开(公告)日：2000-08-22
申请号：US120419
申请日：1998-07-22
申请人： John S. Buchanan , Berne K. Stober
发明人： John S. Buchanan , Berne K. Stober
CPC分类号： B01D3/20
摘要： This invention is directed to a cyclonic vapor/liquid contacting device, wherein liquid exiting the cyclonic device is directed primarily to one side, and distillation or related mass transfer or heat transfer processes employing its use, such as fluid catalytic cracking. Liquid feed is introduced near the floor of the cyclone via downcomer or plenum. Vapor enters through sieve holes in the bottom of the cyclonic device. Near the floor are angled tabs or vanes that impart a spin to the vapor rising up through the floor. The tabs or vanes mix the liquid and vapor. The liquid is then thrown toward the cyclone wall, where it exits through slots in the wall. Preferably, a second set of tabs or vanes, located about in the middle of the cyclone, imparts additional spin to the vapor and entrained liquid rising through the cyclone. This improves liquid collection by the cyclone, especially in cases where a heavy liquid load dampens the spin action of the vapor in the base of the cyclone. Means to direct liquid flow primarily to one side include a shroud around the top of the cyclone, vanes to direct fluid flow downward and baffles between the cyclone barrels.
摘要翻译： 本发明涉及旋风蒸气/液体接触装置，其中离开旋风装置的液体主要指向一侧，并且采用其使用的蒸馏或相关的传质或传热方法，例如流化催化裂化。 通过降液管或气室将液体进料引入旋风分离器的地板附近。 蒸气通过气旋装置底部的筛孔进入。 在地板附近是倾斜的翼片或叶片，使蒸汽上升到通过地板上升。 翼片或叶片混合液体和蒸气。 然后将液体朝向旋风壁投掷，在那里它通过壁中的槽排出。 优选地，位于旋风分离器中部附近的第二组翼片或叶片对蒸气和通过旋风分离器上升的夹带液体赋予额外的旋转。 这样可以改善旋风分离器的液体收集，特别是在重液体负载抑制旋风分离器底部蒸气的旋转作用的情况下。 将液体主要引导到一侧的装置包括围绕旋风分离器顶部的护罩，用于引导流体向下流动的叶片和旋风筒之间的挡板。
-
公开(公告)号：US6030597A
公开(公告)日：2000-02-29
申请号：US3610
申请日：1998-01-07
CPC分类号： B01J20/28014 , B01D53/523 , B01J20/041 , B01J20/06 , B01J20/08 , B01J20/3433 , B01J20/3458 , C01B17/0404 , Y10S502/514
摘要： This invention is directed to an improved process for conversion of H2S to sulfur, using MOST(Mobil Offgas Sulfur Treatment) catalyst or sorbent. The sorbent is typically a magnesium-aluminate spinet, with oxidation promoters such as ceria and vanadia. H.sub.2 S from the feed gas is used to regenerate sulfated sorbent, simultaneously producing elemental sulfur which is then condensed out. The improvement involves combusting part of the feed, converting some of the feed H.sub.2 S to SO.sub.2 prior to contacting the sulfated sorbent. Thus much of the stoichiometric oxygen required for conversion of H.sub.2 S to S is supplied in the form of SO.sub.2 by this pre-combustion step, instead of coming totally from the oxidized/sulfated solid sorbent. This can decrease the amount of sorbent required, as well as the frequency of regenerations, thus reducing process cost. The hot combustion gas also helps to heat the feed stream. One or more Claus reactors may optionally be added, to further increase sulfur recovery efficiency.
摘要翻译： 本发明涉及使用MOST（Mobil Offgas硫处理）催化剂或吸附剂将H2S转化为硫的改进方法。 吸附剂通常是铝酸镁尖晶石，具有氧化促进剂，例如二氧化铈和氧钒。 来自进料气体的H 2 S用于再生硫酸化吸附剂，同时产生元素硫，然后将其冷凝。 改进之处在于使部分进料燃烧，然后在硫酸吸附剂接触之前将一些进料H2S转化为SO2。 因此，通过该预燃烧步骤以SO 2的形式提供将H 2 S转化为S所需的大部分化学计量的氧气，而不是完全来自氧化/硫酸化的固体吸附剂。 这可以减少所需的吸附剂的量以及再生的频率，从而降低工艺成本。 热燃烧气体还有助于加热进料流。 可以任选地加入一个或多个克劳斯反应器，以进一步提高硫回收效率。
-
公开(公告)号：US5716514A
公开(公告)日：1998-02-10
申请号：US521179
申请日：1995-08-30
申请人： John S. Buchanan
发明人： John S. Buchanan
CPC分类号： B01J38/30 , B01D53/56 , B01J38/14 , C10G11/182
摘要： Oxides of nitrogen (NO.sub.x) emissions from an FCC regenerator are reduced by operating the regenerator in partial CO burn mode and controlled turbulent/laminar flow processing of the flue gas. Partial CO burn FCC catalyst regeneration produces flue gas with CO and NO.sub.x precursors. Air is added to a turbulent flow reactor such as a flue gas transfer line where most NO.sub.x precursors are homogeneously converted while leaving some CO unconverted. A downstream CO boiler thermally converts this unconverted CO. NO.sub.x emissions are less than would be experienced using a like amount of air injection to a conventional CO boiler.
摘要翻译： 通过在部分CO燃烧模式下操作再生器并且对烟道气进行受控的湍流/层流处理，来减少来自FCC再生器的氮（NOx）排放的氧化物。 部分CO燃烧FCC催化剂再生产生烟气与CO和NOx前体。 将空气添加到湍流反应器，例如烟道气输送管线，其中大多数NOx前体均匀转化，同时留下一些未转化的CO。 下游CO锅炉热转换未转化的CO。NOx排放量比使用类似量的空气喷射到常规CO锅炉所经历的少。
-
-
-
-
-
-
-
-
-
搜索结果
49 条记录 (耗时 0.027 秒)
