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公开(公告)号：US5586051A
公开(公告)日：1996-12-17
申请号：US393769
申请日：1995-02-24
申请人： Ronald E. Miranda , Robert O. Dunn , Martin K. Lyons , Steven D. Bridges , Francis M. Brinkmeyer , Michael L. Facker
发明人： Ronald E. Miranda , Robert O. Dunn , Martin K. Lyons , Steven D. Bridges , Francis M. Brinkmeyer , Michael L. Facker
IPC分类号： G05D7/00 , B01D3/00 , B01D3/42 , B01F3/08 , B01F15/04 , B01J8/00 , B01J19/00 , C07C41/06 , C07C43/04 , G05D11/13 , G05D21/00 , G05D29/00 , G01F1/00
CPC分类号： G05D11/132 , B01D3/009 , B01D3/4294 , B01F15/0022 , B01F15/00292 , B01F15/0408 , B01J19/0006 , B01J8/001 , C07C41/06 , B01F3/08 , Y02P20/127
摘要： In a process for manufacture of a chemical product, a reactive hydrocarbon feedstream, which varies in composition of the reactive component, is combined with a compatible but unreactive hydrocarbon feedstream to form a blended hydrocarbon stream which is then combined with a reactive alcohol stream of stable concentration of its reactive component, to form a complete feedstream to the reactor. A desired ratio of relative reactant concentrations in the complete feedstream to the reactor is maintained by a control system which maintains a stable concentration in the blended hydrocarbon stream by manipulating flow rate of the unreactive hydrocarbon feedstream responsive to a concentration measurement in the blended hydrocarbon stream. Flow ratio control is then applied to maintain a desired ratio of reactants in the complete feedstream for the reactor by calculating a flow ratio of the blended hydrocarbon stream to the reactive alcohol feedstream. The calculated flow ratio is the process variable input to a manually set ratio controller which manipulates the flow rate of the reactive alcohol feedstream responsive to the flow ratio.
摘要翻译： 在制造化学产品的方法中，将反应性组分的组成变化的反应性烃进料流与相容但不活泼的烃进料流组合以形成混合的烃流，然后将其与稳定的反应性醇流 其反应组分的浓度，以形成到反应器的完整进料流。 通过控制系统保持完整进料流中反应物的相对反应物浓度的期望比例，其通过响应于混合烃流中的浓度测量来操纵非反应性烃进料流的流速来保持混合烃流中的稳定浓度。 然后施加流量比控制以通过计算混合的烃流与反应性醇进料流的流量比来维持反应器的完整进料流中反应物的期望比例。 计算的流量比是输入到手动设定比率控制器的过程变量，其根据流量比操纵反应性醇进料流的流量。
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公开(公告)号：US5671153A
公开(公告)日：1997-09-23
申请号：US393768
申请日：1995-02-24
IPC分类号： C07C41/01 , B01D3/00 , B01D3/42 , B01F3/08 , B01F15/04 , B01J4/00 , B01J19/00 , C07C41/06 , C07C43/04 , G05D11/00 , G05D11/08 , G05D11/13 , G05D21/00 , G06G7/58 , G06G7/75
CPC分类号： B01D3/009 , B01D3/4294 , B01F15/0022 , B01F15/0408 , B01J19/0006 , B01J4/008 , C07C41/06 , G05D11/132 , B01F3/08 , Y02P20/127
摘要： In a process for manufacture of a chemical product in which a plurality of individual reactant containing feedstreams are combined to form a mixed feedstream for a reactor, and wherein at least one of the plurality of feedstreams is subject to variations in reactant concentration, and another one of the plurality of feedstreams is essentially stable in reactant concentration, a desired ratio of relative reactant concentrations in the mixed feedstream is maintained by a control system which infers a reactant concentration ratio in the mixed feedstream based on process measurements and feed parameters related to the plurality of feedstock containing streams prior to their being combined. In use, flow rate of the feedstream which is essentially stable in reactant concentration is manipulated to maintain the inferred reactant concentrations in the mixed stream.
摘要翻译： 在制造化学产品的方法中，其中将多个含有反应物的原料流混合以形成用于反应器的混合进料流，并且其中多个进料流中的至少一个受到反应物浓度的变化，另一个 多个进料流中的反应物浓度基本上是稳定的，通过控制系统维持混合进料流中相对反应物浓度的期望比例，该控制系统基于与多个流体相关的过程测量和进料参数推测混合进料流中的反应物浓度比 的原料含有物流之前的组合。 在使用中，操作基本上反应物浓度稳定的进料流的流速以维持混合流中推断的反应物浓度。
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公开(公告)号：US5243122A
公开(公告)日：1993-09-07
申请号：US814544
申请日：1991-12-30
CPC分类号： C07C5/3335 , B01J8/062 , C07C5/3337 , Y10S208/01 , Y10S585/91 , Y10S585/922 , Y10S585/95
摘要： In a steam active catalytic process employing a fixed catalyst bed for the dehydrogenation of alkanes to alkenes wherein reaction temperatures above about 500.degree. C. (932.degree. F.) must be maintained for commercially feasible conversions, the decline in catalyst activity druing a production period is slowed by maintaining a substantially constant temperature for the reaction effluent while allowing the average temperature of the fixed catalyst bed to rise during a production period.
摘要翻译： 在使用固定催化剂床用于将烷烃脱氢至烯烃的蒸汽活性催化方法中，必须维持高于约500℃（932°F）的反应温度用于商业上可行的转化，生产周期中催化剂活性的下降 通过保持反应流出物的基本上恒定的温度而减缓，同时允许固定催化剂床的平均温度在生产期间升高。
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公开(公告)号：US5389342A
公开(公告)日：1995-02-14
申请号：US70811
申请日：1993-06-03
CPC分类号： C07C5/3335 , B01J8/062 , C07C5/3337 , Y10S208/01 , Y10S585/91 , Y10S585/922 , Y10S585/95
摘要： In an endothermic steam active catalytic process employing a fixed catalyst bed in a fuel fired reactor for the dehydrogenation of alkanes to alkenes, wherein a reaction temperature above about 500.degree. C. (932.degree. F.) is maintained for commercially feasible conversions, and wherein catalyst activity declines during a production period, apparatus for control of a process temperature so as to compensate for catalyst activity decline includes a temperature sensor mounted in the reaction effluent stream in combination with a temperature controller which automatically adjusts the quantity of fuel supplied to the fired reactor.
摘要翻译： 在用于将烷烃脱氢成烯烃的燃料燃烧反应器中使用固定催化剂床的吸热蒸汽活性催化方法中，保持高于约500℃（932°F）的反应温度用于商业上可行的转化，并且其中 催化剂活性在生产期间下降，用于控制工艺温度以补偿催化剂活性下降的装置包括安装在反应流出物流中的温度传感器，其与温度控制器结合，该温度控制器自动调节供应给燃烧器的燃料的量 反应堆。
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公开(公告)号：US4866211A
公开(公告)日：1989-09-12
申请号：US12968
申请日：1987-02-10
CPC分类号： C07C41/06 , C07C5/3337
摘要： Steam active reforming catalyst is described which in addition to converting isoparaffins to isoolefins also isomerizes 1-olefins at least in part to internal olefins. In a combined steam active reforming and ether forming operation a 1-olefin containing stream can be recycled to the steam active reforming zone whereby this 1-olefin is converted to materials which in a separation step downstream from the ether forming reaction can be readily separated from the isoparaffin, the isolefin and the 1-olefin which are recycled to the steam active reforming zone. The steam active reforming catalyst thus has both the function of a reforming (dehydrogenation) catalyst and that of an isomerization catalyst for disposing of the 1-olefin byproduct and preventing its buildup in the operation.
摘要翻译： 描述了蒸汽活性重整催化剂，其除了将异链烷烃转化为异烯烃之外，还至少部分地将1-烯烃异构化为内烯烃。 在组合蒸汽活性重整和醚形成操作中，含1-烯烃的料流可以再循环到蒸汽活性重整区，由此将该1-烯烃转化成在醚形成反应下游的分离步骤中可容易地从 异链烷烃，烯烃和再循环到蒸汽活性重整区的1-烯烃。 因此，蒸汽活性重整催化剂具有重整（脱氢）催化剂和用于处理1-烯烃副产物的异构化催化剂的作用和防止其在操作中累积的功能。
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公开(公告)号：US4206035A
公开(公告)日：1980-06-03
申请号：US933938
申请日：1978-08-15
摘要： A process is disclosed for producing high octane hydrocarbons from a feed comprising paraffins having 5 to 9 carbon atoms which involves contacting the feed with steam and hydrogen in the presence of a steam active dehydrogenation catalyst wherein the amounts of steam and hydrogen employed relative to the feed are such that one obtains unexpectedly high conversion and unexpectedly high selectivity to high octane product.
摘要翻译： 公开了一种从含有5至9个碳原子的链烷烃的进料生产高辛烷值的方法，该方法包括在蒸汽活性脱氢催化剂存在下使进料与蒸汽和氢接触，其中相对于进料使用的蒸汽和氢气的量 使得可以获得意想不到的高转化率和出乎意料的高辛烷值产物的高选择性。
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公开(公告)号：US5220091A
公开(公告)日：1993-06-15
申请号：US842298
申请日：1992-02-26
IPC分类号： B01J23/60 , B01J23/62 , B01J23/96 , B01J37/02 , B01J37/08 , C07B35/04 , C07B61/00 , C07C5/333 , C07C11/02
CPC分类号： B01J23/96 , B01J23/60 , B01J23/626 , C07C5/3337 , Y02P20/584
摘要： A process for dehydrogenating C.sub.2 -C.sub.8 alkanes in the presence of steam and a catalyst composition containing zinc aluminate, a tin oxide and platinum, wherein the zinc aluminate support material has been prepared by calcining zinc oxide and a hydrated alumina (so as to alleviate coking during the dehydrogenation process).
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公开(公告)号：US5235121A
公开(公告)日：1993-08-10
申请号：US739823
申请日：1991-08-02
IPC分类号： C10G35/085
CPC分类号： C10G35/085
摘要： The present invention provides a method and apparatus for reforming a hydrocarbon feedstock in the presence of steam using a steam-active reforming catalyst The present invention can generally be used in conjunction with any steam-active reforming processes wherein the hydrocarbon reforming and catalyst regeneration operations are conducted simultaneously and the catalyst is regenerated using a steam-diluted oxygen (or air) regeneration medium. In the present invention, catalyst regeneration effluent gas is advantageously reused in the reforming operation to provide at least a portion of the steam environment required for reforming the hydrocarbon feedstock. Free oxygen is preferably removed from the regeneration effluent gas before the regeneration effluent gas is brought into contact with the hydrocarbon feedstock.
摘要翻译： 本发明提供了一种使用蒸汽活性重整催化剂在蒸汽存在下重整烃原料的方法和设备。本发明通常可与任何蒸汽活性重整方法一起使用，其中烃重整和催化剂再生操作是 同时进行催化剂，并使用蒸汽稀释的氧（或空气）再生介质来再生催化剂。 在本发明中，催化剂再生废气有利地在重整操作中重新使用以提供重整烃原料所需的至少一部分蒸汽环境。 在再生废气与烃原料接触之前，游离氧优选从再生流出气中除去。
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公开(公告)号：US4229609A
公开(公告)日：1980-10-21
申请号：US18689
申请日：1979-03-08
CPC分类号： B01J37/10 , B01J23/96 , C07C5/325 , Y02P20/584
摘要： A continuous process for dehydrogenating hydrocarbons comprising repetitively carrying out dehydrogenation using a steam active dehydrogenation catalyst and regenerating of said catalyst with steam and oxygen-containing gas wherein the flow rate of steam is maintained constant during both the dehydrogenation and the regeneration and wherein the catalyst is purged with steam prior to each dehydrogenation and each regeneration.
摘要翻译： 一种用于使烃脱氢的连续方法，其包括使用蒸汽活性脱氢催化剂重复进行脱氢和用蒸汽和含氧气体再生所述催化剂，其中在脱氢和再生期间蒸汽的流速保持恒定，并且其中催化剂为 在每个脱氢和每次再生之前用蒸汽吹扫。
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公开(公告)号：US4229602A
公开(公告)日：1980-10-21
申请号：US966457
申请日：1978-12-04
CPC分类号： C07C5/41
摘要： A process for catalytic reforming of hydrocarbons which comprises contacting aliphatic hydrocarbons with steam and a dehydrocyclization catalyst under dehydrocyclization conditions to form a vapor stream containing aromatics and nonaromatics, separating at least a portion of the vapor stream which is compressed, heated, and recycled to the dehydrocyclization reaction to minimize steam diluent requirements for the process.
摘要翻译： 一种用于烃的催化重整的方法，其包括在脱氢环化条件下使脂族烃与蒸汽和脱氢环化催化剂接触以形成含有芳烃和非芳族化合物的蒸气流，将至少一部分被压缩，加热并再循环的蒸气流分离成 脱氢环化反应最小化蒸汽稀释剂对该过程的要求。
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