公开(公告)号：US06436869B1

公开(公告)日：2002-08-20

申请号：US09517546

申请日：2000-03-02

申请人： Ronald G. Searle ,  Krishna K. Rao ,  Gary D. Mohr ,  Xiaobing Feng

发明人： Ronald G. Searle ,  Krishna K. Rao ,  Gary D. Mohr ,  Xiaobing Feng

IPC分类号： B01J27182

CPC分类号： B01J29/40 ,  B01J29/005 ,  B01J29/80 ,  B01J29/84 ,  B01J29/85 ,  B01J29/87 ,  B01J2229/26 ,  B01J2229/42 ,  C07C1/20 ,  C07C2/861 ,  C07C2/864 ,  C07C2/865 ,  C07C2/868 ,  C07C4/06 ,  C07C4/18 ,  C07C5/321 ,  C07C5/41 ,  C07C6/123 ,  C07C6/126 ,  C07C2529/035 ,  C07C2529/40 ,  C07C2529/65 ,  C07C2529/80 ,  C07C2529/83 ,  C07C2529/85 ,  C10G3/45 ,  C10G3/49 ,  C10G11/05 ,  C10G35/095 ,  C10G49/08 ,  C10G2400/20 ,  Y02P20/52 ,  Y02P30/20 ,  Y02P30/42 ,  C07C15/08

摘要： An aluminophosphate bound silicoaluminophosphate catalyst contains iron, cobalt and/or nickel is useful in a method of making a product including an olefin from a feedstock containing an oxygenate. The method includes contacting an oxygenate feedstock with the catalyst, which is an aluminophosphate bound silicoaluminophosphate catalyst containing iron, cobalt and/or nickel and which does not contain a significant amount of amorphous binder, in its activated state under conditions effective to produce an olefin product.

摘要翻译： 磷酸铝结合的硅铝磷酸盐催化剂含有铁，钴和/或镍可用于制备包含含有含氧化合物的原料的烯烃的产物的方法。 该方法包括使含氧化合物原料与催化剂接触，所述催化剂是含有铁，钴和/或镍的磷酸铝结合的硅铝磷酸盐催化剂，并且其不含有显着量的无定形粘合剂，在其有效产生烯烃产物的条件下处于其活化状态 。

公开(公告)号：US6033641A

公开(公告)日：2000-03-07

申请号：US634233

申请日：1996-04-18

申请人： W. Keith Hall ,  Xiaobing Feng

发明人： W. Keith Hall ,  Xiaobing Feng

IPC分类号： B01D53/86 ,  B01D53/94 ,  B01J29/072 ,  B01D53/56 ,  B01J20/18

CPC分类号： B01J29/072 ,  B01D53/8628 ,  B01D53/9418 ,  B01D2251/208 ,  B01D2255/20738 ,  B01D2255/504 ,  B01D2258/012 ,  Y02T10/24

摘要： This invention discloses a durable catalyst for internal combustion engine or power plant exhaust gas purification which is comprised of a zeolite as the support and Fe (II) base-exchanged cation as the active component for the NO.sub.x selective catalytic reduction (SCR). It has stable activity with up to 20% H.sub.2 O and up to 250 ppm SO.sub.2 and combinations thereof over many hours in the exhaust stream. It is resistant to temperature excursions up to about 1,000.degree. C. The method of producing this catalyst preferably comprises ion-exchanging the zeolite with Fe (II) in an aqueous solution of iron (II) oxalate, iron (II) citrate or iron (II) formate, or a mixture of oxalic acid, citric acid/salts, formic acid/salts, 2,3,4,5,6-pentahydroxyl caproic acid/salts and iron (II) salts, for example, sulfate, nitrate, chloride, carboxylate, chloride acetate, phosphate and carbonate, in the pH range from 3 to 13 under anaerobic conditions. The catalyst produced in this way shows no noticeable deactivation in its activity for reducing NO.sub.x to N.sub.2 under accelerated aging conditions (up to about 20% H.sub.2 O and up to about 250 ppm SO.sub.2 present in the mixture of NO, HC (iso-butane), and O.sub.2) for at least 2,500 hours which meets the Government standard. A method of using this catalyst is also disclosed. Methane can be used satisfactorily as the reducing agent but in the temperature range of greater than 600.degree. C. but less than 750.degree. C.

摘要翻译： 本发明公开了一种用于内燃机或发电厂废气净化的耐久性催化剂，其由作为载体的沸石和作为用于NOx选择性催化还原（SCR）的活性成分的Fe（II））碱交换的阳离子组成。 它具有稳定的活性，高达20％的H 2 O和高达250ppm的SO 2及其组合在许多小时内排出。 它可以耐高达约1000℃的温度漂移。制备​​该催化剂的方法优选包括在草酸铁（II），柠檬酸铁（II）或铁（II）的水溶液中与Fe（II）离子交换沸石 II）甲酸盐，或草酸，柠檬酸/盐，甲酸/盐，2,3,4,5,6-五羟基己酸/盐和铁（II）盐的混合物，例如硫酸盐，硝酸盐， 氯化物，羧酸盐，氯化乙酸盐，磷酸盐和碳酸盐，在无氧条件下在3至13的pH范围内。 以这种方式生产的催化剂在加速老化条件下（NO，HC（异丁烷），异丁烷）混合物中存在的高达约20％H 2 O和高达约250ppm的SO 2，在其将NOx还原为N 2的活性中没有明显的失活。 和O2）至少2500小时，符合政府标准。 还公开了使用该催化剂的方法。 甲烷可以令人满意地用作还原剂，但在大于600℃但小于750℃的温度范围内。