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公开(公告)号：US4921946A
公开(公告)日：1990-05-01
申请号：US265729
申请日：1988-11-01
CPC分类号： B01J29/90 , B01J38/12 , C07C2/76 , C07C2529/40 , Y02P20/584
摘要： A hydrocarbon conversion process is disclosed which extends the useful life of a regenerable zeolite-containing hydrocarbon conversion catalyst. In one aspect of this process, a hydrocarbon feed containing fluorides is passed through a fluoride removal system which reduces the fluoride concentration of the feed to below 100 ppb. The hydrocarbon feed containing less than 100 ppb fluorine is then converted over a regenerable zeolite-containing hydrocarbon conversion catalyst. The zeolite-containing hydrocarbon conversion catalyst is regenerated with an oxygen-containing gas stream as necessary to burn off carbonaceous deposits on the catalyst so as to return the zeolite catalyst to a high level of activity.
摘要翻译： 公开了一种延长可再生沸石烃转化催化剂的使用寿命的烃转化方法。 在该方法的一个方面，含氟化物的烃进料通过氟化物去除系统，其将进料的氟化物浓度降低至低于100ppb。 然后将含有少于100ppb氟的烃原料转化为可再生的含沸石的烃转化催化剂。 含有沸石的烃转化催化剂根据需要用含氧气体气流再生，以将催化剂上的碳质沉积物烧掉，使沸石催化剂回复到高水平的活性。
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公开(公告)号：US4783566A
公开(公告)日：1988-11-08
申请号：US90480
申请日：1987-08-28
CPC分类号： B01J29/90 , B01J38/12 , C07C2/76 , C07C2529/40 , Y02P20/584
摘要： A hydrocarbon conversion process is disclosed which extends the useful life of a regenerable zeolite-containing hydrocarbon conversion catalyst. In one aspect of this process, a hydrocarbon feed containing fluorides is passed through a fluoride removal system which reduces the fluoride concentration of the feed to below 100 ppb. The hydrocarbon feed containing less than 100 ppb fluorine is then converted over a regenerable zeolite-containing hydrocarbon conversion catalyst. The zeolite-containing hydrocarbon conversion catalyst is regenerated with an oxygen-containing gas stream as necessary to burn off carbonaceous deposits on the catalyst so as to return the zeolite catalyst to a high level of activity.
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公开(公告)号：US4795845A
公开(公告)日：1989-01-03
申请号：US138187
申请日：1987-12-28
CPC分类号： C07C5/2724 , B01J29/40 , B01J29/44 , B01J29/90 , C07C2/76 , B01J2229/26 , B01J2229/36 , B01J2229/42 , B01J29/65 , B01J29/70 , C07C2521/04 , C07C2523/08 , C07C2527/14 , C07C2529/40 , Y02P20/584
摘要： A process for catalytic dehydrocyclodimerization and regeneration of the catalyst. C.sub.2 to C.sub.5 aliphatic hydrocarbons are reacted to produce aromatics, using a catalyst of a composition especially adapted to minimize deposition of coke on the catalyst. The catalyst is comprised of alumina which contains phosphorus, gallium, and a crystalline aluminosilicate having a silica to alumina ratio of at least 12. The use of this catalyst has resulted in a five-fold reduction in the rate of coke deposition, compared to a conventional dehydrocyclodimerization catalyst. However, the activity of this catalyst once it becomes deactivated is only recovered by burning the coke accumulated upon the deactivated catalyst at catalyst regeneration conditions in the presence of an oxygen-containing gas.
摘要翻译： 一种催化脱氢环化二聚和催化剂再生的方法。 使用特别适合于使焦炭在催化剂上的沉积最小化的组合物的催化剂使C2至C5脂族烃反应以产生芳族化合物。 催化剂由含有磷，镓和二氧化硅与氧化铝之比至少为12的结晶硅铝酸盐的氧化铝组成。与此相比，该催化剂的使用导致焦炭沉积速率降低了五倍 常规脱氢环化二聚催化剂。 然而，一旦催化剂失活，该催化剂的活性只有在含氧气体存在下，在催化剂再生条件下燃烧积聚在失活催化剂上的焦炭来回收。
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公开(公告)号：US4724271A
公开(公告)日：1988-02-09
申请号：US33136
申请日：1987-03-31
CPC分类号： C07C5/2724 , B01J29/40 , B01J29/44 , B01J29/90 , C07C2/76 , B01J2229/26 , B01J2229/36 , B01J2229/42 , B01J29/65 , B01J29/70 , C07C2521/04 , C07C2523/08 , C07C2527/14 , C07C2529/40 , Y02P20/584
摘要： A process for catalytic dehydrocyclodimerization and regeneration of the catalyst. C.sub.2 to C.sub.5 aliphatic hydrocarbons are reacted to produce aromatics, using a water-sensitive catalyst of a composition especially adapted to minimize deposition of coke on the catalyst. The catalyst is comprised of alumina which contains phosphorus, gallium, and a crystalline aluminosilicate having a silica to alumina ratio of at least 12. The use of this catalyst has resulted in a five-fold reduction in the rate of coke deposition, compared to a conventional dehydrocyclodimerization catalyst. However, the activity of this catalyst is significantly reduced by exposure to water at the temperatures normally used in removing the coke, which is accomplished by burning the coke in a combustion zone in the presence of oxygen, producing carbon dioxide and water. At least a portion of the gas leaving the combustion zone catalyst bed is combined with air and recycled back to the combustion zone. This mode of operation causes the concentration of water in the recycled stream to increase to an unacceptable value. Therefore, to obtain the benefit of this superior catalyst, it is necessary to utilize water removal steps in the catalyst regeneration procedure.
摘要翻译： 一种催化脱氢环化二聚和催化剂再生的方法。 使用特别适合于使焦炭在催化剂上的沉积最小化的组合物的水敏催化剂，使C2至C5脂族烃反应以产生芳族化合物。 催化剂由含有磷，镓和二氧化硅与氧化铝之比至少为12的结晶硅铝酸盐的氧化铝组成。与此相比，该催化剂的使用导致焦炭沉积速率降低5倍 常规脱氢环化二聚催化剂。 然而，在通常用于除去焦炭的温度下，该催化剂的活性显着降低，这通过在氧气存在下在燃烧区中燃烧焦炭，产生二氧化碳和水来实现。 离开燃烧区催化剂床的气体的至少一部分与空气结合并再循环回燃烧区。 这种操作模式导致再循环流中的水的浓度增加到不可接受的值。 因此，为了获得该优良催化剂的优点，需要在催化剂再生方法中利用除水步骤。
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5.发明授权Catalyst and process for producing aromatic compounds from C.sub.2 -C.sub.6 失效用于从C2-C6脂族烃生产芳族化合物的催化剂和方法
公开(公告)号：US5169812A
公开(公告)日：1992-12-08
申请号：US760294
申请日：1991-09-16
CPC分类号： B01J29/40 , C07C2/00 , B01J2229/26 , B01J2229/36 , B01J2229/42 , C07C2527/167 , C07C2529/04
摘要： A catalyst for converting C.sub.2 to C.sub.6 aliphatic hydrocarbons to aromatics is described. The catalyst contains a zeolite, an aluminum phosphate binder and a gallium component. Examples of zeolites which can be used are the ZSM family of zeolites, with ZSM-5 being a specific example. The catalyst is characterized in that it is tolerant to exposure to hydrogen at tempertures of about 500.degree. to about 700.degree. C. The catalyst's tolerance to hydrogen exposure is the result of treating the catalyst with an aqueous solution of a weakly acidic ammonium salt or a dilute acid solution at a temperature of about 50.degree. to about 100.degree. C. for a time of about 1 to about 48 hours, followed by calcination. A process for preparing the catalyst is also described.
摘要翻译： 描述了将C2转化为C6脂族烃到芳族化合物的催化剂。 催化剂含有沸石，磷酸铝粘合剂和镓成分。 可以使用的沸石的实例是沸石的ZSM族，ZSM-5是具体的实例。 该催化剂的特征在于它在约500℃至约700℃的温度下耐受暴露于氢气。催化剂对暴露于氢的耐受性是用弱酸性铵盐或 稀酸溶液在约50℃至约100℃的温度下搅拌约1至约48小时，然后煅烧。 还描述了制备催化剂的方法。
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6.发明授权Process for producing aromatic compounds from C2-C6 aliphatic hydrocarbons using a hydrogen tolerant catalyst 失效使用耐氢催化剂从C2-C6脂族烃生产芳族化合物的方法
公开(公告)号：US5258564A
公开(公告)日：1993-11-02
申请号：US933129
申请日：1992-08-21
CPC分类号： B01J29/40 , C07C2/00 , B01J2229/26 , B01J2229/36 , B01J2229/42 , C07C2527/167 , C07C2529/04
摘要： A process for converting C.sub.2 to C.sub.6 aliphatic hydrocarbons to aromatics is described. The process uses a catalyst which contains a zeolite, an aluminum phosphate binder and a gallium component. Examples of zeolites which can be used are the ZSM family of zeolites, with ZSM-5 being a specific example. The catalyst is characterized in that it is tolerant to exposure to hydrogen at temperatures of about 500.degree. to about 700.degree. C. The catalyst's tolerance to hydrogen exposure is the result of treating the catalyst with an aqueous solution of a weakly acidic ammonium salt or a dilute acid solution at a temperature of about 50.degree. to about 100.degree. C. for a time of about 1 to about 48 hours, followed by calcination.
摘要翻译： 描述了将C2转化为C6脂族烃至芳族化合物的方法。 该方法使用含有沸石，磷酸铝粘合剂和镓成分的催化剂。 可以使用的沸石的实例是沸石的ZSM族，ZSM-5是具体的实例。 催化剂的特征在于它在约500℃至约700℃的温度下耐受暴露于氢气。催化剂对暴露于氢的耐受性是用弱酸性铵盐或 稀酸溶液在约50℃至约100℃的温度下搅拌约1至约48小时，然后煅烧。
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7.发明授权
公开(公告)号：US5212127A
公开(公告)日：1993-05-18
申请号：US790315
申请日：1991-11-08
CPC分类号： C07C2/76 , B01J29/90 , B01J38/66 , C07C2529/06 , Y02P20/584
摘要： This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500.degree. C. The instant process restores substantially all of the catalyst's lost activity. The process involves treating the catalyst with an aqueous solution of a weakly acidic ammonium salt or a dilute acid solution at a temperature of about 50.degree. to about 100.degree. C. for a time of about 1 to about 48 hours. An ammonium nitrate solution is preferred. Next the catalyst is calcined at a temperature of about 500.degree. to about 700.degree. C. for a time of about 1 to about 15 hours to provide a reactivated catalyst. The catalyst can be reactivated several times using this process.
摘要翻译： 本发明涉及一种使脱氢环二聚化催化剂再活化的方法。 含有磷酸铝粘合剂的脱氢环化二聚催化剂在高于500℃的温度下暴露于氢气时可以失活。本工艺基本恢复所有催化剂的失活活性。 该方法包括在约50℃至约100℃的温度下用弱酸性铵盐或稀酸溶液的水溶液处理催化剂约1至约48小时。 优选硝酸铵溶液。 接下来，催化剂在约500至约700℃的温度下煅烧约1至约15小时，以提供再活化的催化剂。 使用该方法可以将催化剂重新活化数次。
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公开(公告)号：US08884055B2
公开(公告)日：2014-11-11
申请号：US13155553
申请日：2011-06-08
申请人： Alakananda Bhattacharyya , Joseph A. Kocal , Joel T. Walenga , Nikolay Y. Adonin , Nina I. Kuznetsova , Bair S. Bal'zhinimaev
发明人： Alakananda Bhattacharyya , Joseph A. Kocal , Joel T. Walenga , Nikolay Y. Adonin , Nina I. Kuznetsova , Bair S. Bal'zhinimaev
IPC分类号： C07C51/16 , C07C51/265
CPC分类号： C07C51/265 , C07C51/42 , Y02P20/52 , Y02P20/542 , C07C63/26
摘要： A solid terephthalic acid composition and a process for producing terephthalic acid from para-xylene. The process comprises forming a mixture comprising the para-xylene, a solvent, a bromine source, and a catalyst; and oxidizing the para-xylene by contacting the mixture with an oxidizing agent at oxidizing conditions to produce a solid oxidation product comprising terephthalic acid, para-toluic acid, 4-carboxybenzaldehyde. The solvent comprises a carboxylic acid having from 1 to 7 carbon atoms and an dialkyl imidazolium ionic liquid; and the catalyst comprises at least one of cobalt, titanium, manganese, chromium, copper, nickel, vanadium, iron, molybdenum, tin, cerium, and zirconium. The solid terephthalic acid composition comprises, less than about 4,000 ppm-wt 4-carboxybenzaldehyde content, and more than about 2,000 ppm-wt a para-toluic acid.
摘要翻译： 固体对苯二甲酸组合物和由对二甲苯生产对苯二甲酸的方法。 该方法包括形成包含对二甲苯，溶剂，溴源和催化剂的混合物; 并通过在氧化条件下将氧化剂与氧化剂接触来氧化对二甲苯以产生包含对苯二甲酸，对甲苯甲酸，4-羧基苯甲醛的固体氧化产物。 溶剂包括具有1至7个碳原子的羧酸和二烷基咪唑鎓离子液体; 催化剂包括钴，钛，锰，铬，铜，镍，钒，铁，钼，锡，铈和锆中的至少一种。 固体对苯二甲酸组合物包含小于约4,000ppm重量的4-羧基苯甲醛含量和大于约2,000ppm重量的对甲苯甲酸。
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公开(公告)号：US08222465B2
公开(公告)日：2012-07-17
申请号：US13193227
申请日：2011-07-28
申请人： Tom N. Kalnes , John Q. Chen , Joseph A. Kocal
发明人： Tom N. Kalnes , John Q. Chen , Joseph A. Kocal
CPC分类号： C07C29/132 , C10G3/44 , C10G3/46 , C10G3/48 , C10G3/52 , C10G3/56 , C10G2300/1014 , Y02P20/52 , Y02P30/20 , C07C31/202 , C07C31/205
摘要： A catalytic process for generating at least one polyol from a feedstock comprising cellulose is performed in a continuous manner. The process involves, contacting, continuously, hydrogen, water, and a feedstock comprising cellulose, with a catalyst to generate an effluent stream comprising at least one polyol, water, hydrogen, and at least one co-product. The water, hydrogen, and at least one co-product are separated from the effluent stream and recycled to the reaction zone. The polyol is recovered from the effluent stream.
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公开(公告)号：US20120004449A1
公开(公告)日：2012-01-05
申请号：US13155519
申请日：2011-06-08
申请人： Alakananda Bhattacharyya , Joseph A. Kocal , Joel T. Walenga , Nikolay Y. Adonin , Nina L. Kuznetsova , Bair S. Bal'zhinimaev
发明人： Alakananda Bhattacharyya , Joseph A. Kocal , Joel T. Walenga , Nikolay Y. Adonin , Nina L. Kuznetsova , Bair S. Bal'zhinimaev
IPC分类号： C07C51/265 , C07C51/42 , C07C51/16
CPC分类号： C07C51/265 , C07C63/16 , C07C63/24 , C07C63/26 , C07C63/06
摘要： A process and a mixture for oxidizing an alkyl-aromatic compound comprises forming a mixture comprising the alkyl-aromatic compound, a solvent, a bromine source, and a catalyst; and contacting the mixture with an oxidizing agent at oxidizing conditions to produce an oxidation product comprising at least one of an aromatic aldehyde, an aromatic alcohol, an aromatic ketone, and an aromatic carboxylic acid. The solvent comprises a carboxylic acid having from 1 to 7 carbon atoms and an ionic liquid selected from the group consisting of an imidazolium ionic liquid, a pyridinium ionic liquid, a phosphonium ionic liquid, a tetra alkyl ammonium ionic liquid, and combinations thereof. The catalyst comprises at least one of cobalt, titanium, manganese, chromium, copper, nickel, vanadium, iron, molybdenum, tin, cerium, and zirconium.
摘要翻译： 用于氧化烷基 - 芳族化合物的方法和混合物包括形成包含烷基 - 芳族化合物，溶剂，溴源和催化剂的混合物; 以及在氧化条件下使所述混合物与氧化剂接触以产生包含芳族醛，芳族醇，芳族酮和芳族羧酸中的至少一种的氧化产物。 溶剂包括具有1至7个碳原子的羧酸和选自咪唑鎓离子液体，吡啶鎓离子液体，鏻离子液体，四烷基铵离子液体及其组合的离子液体。 催化剂包括钴，钛，锰，铬，铜，镍，钒，铁，钼，锡，铈和锆中的至少一种。
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