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    Recovery and purification of refrigerants
    1.
    发明授权
    Recovery and purification of refrigerants 失效
    制冷剂的回收和净化

    公开(公告)号：US5620502A

    公开(公告)日：1997-04-15

    申请号：US474818

    申请日：1995-06-07

    Applicant: Stephen R. Dunne ,  Mark T. Staniulis ,  Alan P. Cohen

    Inventor： Stephen R. Dunne ,  Mark T. Staniulis ,  Alan P. Cohen

    IPC: B01D15/00 ,  F25B45/00 ,  B01D53/02

    CPC classification number: B60H1/00585 ,  B01D15/00 ,  F25B45/00 ,  F25B2345/002 ,  Y10S62/908 ,  Y10S62/918 ,  Y10S95/902

    Abstract: A process and apparatus for the recovery and purification of a contaminated refrigerant withdrawn from a refrigeration or refrigerant recovery system which employs a compressor and an adsorbent selective for the adsorption of halogenated hydrocarbons. The adsorbent is selected from the group consisting of silicalite, faujasites, steamed and rare earth exchanged zeolite Y, mordenite, ZSM-5 and mixtures thereof, and more particularly the group consisting of a low cerium rare earth exchanged zeolite Y-84, a low cerium rare earth exchanged zeolite LZ-210, Breck Structure Six, ECR-32, and mixtures thereof. A significant increase in the capacity of these adsorbents over conventional adsorbents combined with the use of novel process steps to recover, purify and return a purified refrigerant to the refrigeration system result in significant cost savings at reduced risk of release of halogenated hydrocarbons to the environment.

    Abstract translation: 一种用于回收和净化从制冷或制冷剂回收系统中排出的受污染制冷剂的方法和装置，其使用压缩机和吸附卤代烃的吸附剂。 吸附剂选自硅沸石，八面沸石，蒸汽和稀土交换的沸石Y，丝光沸石，ZSM-5及其混合物，更特别的是低铈稀土交换沸石Y-84，低 铈稀土交换沸石LZ-210，Breck Structure Six，ECR-32及其混合物。 与常规吸附剂相比，这些吸附剂的能力显着增加，并结合使用新的工艺步骤来回收，净化和将纯化的制冷剂返回到制冷系统，导致显着的成本节省，同时降低将卤代烃释放到环境中的风险。

    Catalytic reduction of nitrogen oxides
    3.
    发明授权
    Catalytic reduction of nitrogen oxides 失效
    催化还原氮氧化物

    公开(公告)号：US4867954A

    公开(公告)日：1989-09-19

    申请号：US178578

    申请日：1988-04-07

    Applicant: Mark T. Staniulis ,  Alan P. Risch ,  James G. Vassilakis ,  Donald F. Best

    Inventor： Mark T. Staniulis ,  Alan P. Risch ,  James G. Vassilakis ,  Donald F. Best

    IPC: B01D53/86 ,  B01D53/94 ,  B01J29/00 ,  B01J29/08 ,  B01J29/70 ,  B01J37/06

    CPC classification number: B01J37/06 ,  B01D53/8625 ,  B01D53/9418 ,  B01J29/00 ,  B01J29/084 ,  B01J29/70 ,  B01D2251/2062 ,  B01D2255/2022 ,  B01D2255/20761 ,  B01D2255/50 ,  B01J2229/42 ,  Y02C20/10

    Abstract: This invention relates to a method for catalytically reducing one or more nitrogen oxides from a gaseous stream containing one or more nitrogen oxides and optionally one or more sulfur oxides which comprises contacting said gaseous stream and ammonia with a microporous molecular sieve composition at effective reduction conditions in which the amount of ammonia in said method is excessive over the stoichiometric amount necessary for catalytically reducing one or more nitrogen oxides from said gaseous stream, wherein said microporous molecular sieve composition is (i) optionally acid treated with an inorganic or organic acid, (ii) hydrogen-forming cation exchanged and (iii) optionally metal cation exchanged, prior to said contacting in said method, and wherein at least a portion of excessive ammonia in said method is oxidized without substantial adverse effect on catalytically reducing one or more nitrogen oxides from said gaseous stream.

    Abstract translation: 本发明涉及从含有一种或多种氮氧化物和任选的一种或多种硫氧化物的气流中催化还原一种或多种氮氧化物的方法，其包括在有效还原条件下使所述气流和氨与微孔分子筛组合物接触 其中所述方法中的氨的量超过用于从所述气流催化还原一种或多种氮氧化物所需的化学计量量，其中所述微孔分子筛组合物是（i）任选地用无机或有机酸酸处理（ii） ）成氢阳离子交换，和（iii）任选的金属阳离子交换，在所述方法之前的所述接触之前，并且其中所述方法中的至少一部分过量的氨被氧化，对催化还原一种或多种氮氧化物没有显着的不利影响 所述气流。

    Reforming using a bound zeolite catalyst
    5.
    发明授权
    Reforming using a bound zeolite catalyst 失效
    使用结合的沸石催化剂进行重整

    公开(公告)号：US5106803A

    公开(公告)日：1992-04-21

    申请号：US352399

    申请日：1989-05-15

    Applicant: Donald H. Mohr ,  Charles P. Wilson ,  Albert S. Behan ,  Robert L. Chiang ,  Mark T. Staniulis

    Inventor： Donald H. Mohr ,  Charles P. Wilson ,  Albert S. Behan ,  Robert L. Chiang ,  Mark T. Staniulis

    IPC: B01J29/62 ,  B01J29/72 ,  C10G35/095

    CPC classification number: C10G35/095 ,  B01J29/62 ,  B01J2229/26 ,  B01J2229/42

    Abstract: Reforming to produce aromatics from aliphatics, using a bond zeolite catalyst containing a Group VIII metal such as platinum, has been found to be extremely sensitive to water, even at water concentrations as low as 3 ppm in the feed, unless certain catalysts having a low water sensitivity index are used. The water sensitivity index (WSI) is described and methods for making catalysts with a low WSI are described. The sulfur content of the feed to the reforming/aromatics production process is preferably below 50 parts per billion. The catalysts used in the reforming process is preferably a high crush strength catalyst and is preferably prepared by steps including treating L zeolite with a binding enhancement agent prior to binding with a binder such as silica, silica/alumina or alumina.

    Abstract translation: 已经发现使用含有VIII族金属如铂的键沸石催化剂从脂肪族产生芳族化合物，甚至在进料中的低至3ppm的水浓度下，对水是非常敏感的，除非某些催化剂具有低 使用水敏感指数。 描述了水敏感指数（WSI），并描述了制备低WSI催化剂的方法。 重整/芳烃生产过程的进料的硫含量优选低于50ppm。 在重整过程中使用的催化剂优选是高抗压强度催化剂，并且优选通过以下步骤制备，包括在与粘合剂例如二氧化硅，二氧化硅/氧化铝或氧化铝结合之前用结合增强剂处理L沸石。

    Noble metal exchange of hydrophobic molecular sieves
    6.
    发明授权
    Noble metal exchange of hydrophobic molecular sieves 失效
    贵金属交换疏水分子筛

    公开(公告)号：US5013703A

    公开(公告)日：1991-05-07

    申请号：US402745

    申请日：1989-09-05

    Applicant: Mark T. Staniulis ,  Douglas E. Crozier ,  Alan P. Risch ,  Jenny L. Pai

    Inventor： Mark T. Staniulis ,  Douglas E. Crozier ,  Alan P. Risch ,  Jenny L. Pai

    IPC: B01J29/035

    CPC classification number: B01J29/035 ,  B01J2229/42

    Abstract: Normal methods of impregnating silicalite with noble metals leads either to metal loadings under 8% at high (greater than 60%) dispersion or loading of over 8% noble metal at low dispersion. To obtain silicalite impregnated with a noble metal at more than 8 weight percent loading and with at least 60% dispersion it has been found necessary to pretreat the silicalite with a base and to impregnate the base treated silicalite with a noble metal compound in two stages separated by calcination. Platinized silicalite so prepared may be dispersed in a poly(tetrafluoroethylene) matrix and used as a fixed bed to catalyze isotopic exchange gaseous hydrogen and water vapor arising from a mass of liquid water flowing over the fixed catalyst bed.

    Abstract translation: 用贵金属浸渍硅沸石的常规方法导致在低分散下高达8％以上（大于60％）分散或超过8％贵金属负载的金属负载。 为了获得以高于8重量％的载荷和至少60％的分散体浸渍贵金属的硅沸石，已经发现需要用碱预处理硅沸石，并用贵金属化合物浸渍碱处理的硅沸石两步分离 通过煅烧。 如此制备的铂化硅沸石可以分散在聚（四氟乙烯）基质中，并用作固定床，以催化从固定催化剂床上流动的大量液态水产生的同位素交换气态氢和水蒸汽。

    Catalytic cracking catalysts for high octane gasoline products
    7.
    发明授权
    Catalytic cracking catalysts for high octane gasoline products 失效
    用于高辛烷值汽油产品的催化裂化催化剂

    公开(公告)号：US4744886A

    公开(公告)日：1988-05-17

    申请号：US826501

    申请日：1986-02-05

    Applicant: Robert L. Chiang ,  Mark T. Staniulis

    Inventor： Robert L. Chiang ,  Mark T. Staniulis

    IPC: B01J29/08 ,  C10G11/05

    CPC classification number: C10G11/05 ,  B01J29/084

    Abstract: Catalytic cracking catalysts, the process of their preparation and the process of their use. Cracking catalysts are disclosed for improving the octane number of gasoline products. The catalysts comprise a zeolitic aluminosilicate having a mole ratio of oxides in the dehydrated state of(0.85-1.1) M.sub.2/n O:Al.sub.2 O.sub.3 :xSiO.sub.2wherein M is a cation having a valence of "n" and "x" has a value greater than 6.0 to about 11.0; has an x-ray powder diffraction pattern having at least the d-spacings of Table A; has extraneous silicon atoms in the crystal lattice in the form of framework SiO.sub.4 tetrahedra; has between greater than zero to less than 5.0 percent by weight, expressed as the oxide, of at least one rare earth cation selected from the group consisting of cerium, lanthanum, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium; and less than 1.2 weight percent Na.sub.2 O based on the weight of the aluminosilicate.

    Abstract translation: 催化裂化催化剂，其制备过程及其使用过程。 公开了用于改进汽油产品辛烷值的裂化催化剂。 催化剂包含具有（0.85-1.1）M2 / nO:Al2O3:xSiO2脱水状态的氧化物的摩尔比的沸石硅铝酸盐，其中M是价数“n”的阳离子，“x”的值大于 6.0〜11.0; 具有至少具有表A的d间距的x射线粉末衍射图; 在框架SiO4四面体形式的晶格中具有外来硅原子; 至少一种选自铈，镧，镨，钕，ium，钐，铕，钆，铽，镝的稀土阳离子的重量百分比大于零至小于5.0重量％ ，钬，铒，ium，镱和镥; 和基于硅铝酸盐重量的小于1.2重量％的Na 2 O。

    Reforming using a bound zeolite catalyst
    10.
    发明授权
    Reforming using a bound zeolite catalyst 失效
    使用结合的沸石催化剂进行重整

    公开(公告)号：US4830732A

    公开(公告)日：1989-05-16

    申请号：US141657

    申请日：1988-01-07

    Applicant: Donald H. Mohr ,  Charles R. Wilson ,  Albert S. Behan ,  Robert L. Chiang ,  Mark T. Staniulis

    Inventor： Donald H. Mohr ,  Charles R. Wilson ,  Albert S. Behan ,  Robert L. Chiang ,  Mark T. Staniulis

    IPC: B01J29/60 ,  B01J29/50 ,  B01J29/62 ,  C10G35/06 ,  C10G35/085 ,  C10G35/095

    CPC classification number: C10G35/095 ,  B01J29/62 ,  B01J2229/26 ,  B01J2229/42

    Abstract: Reforming to produce aromatics from aliphatics, using a bound zeolite catalyst containing a Group VIII metal such as platinum, has been found to be extremely sensitive to water, even at water concentrations as low as 3 ppm in the feed, unless certain catalysts having a low water sensitivity index are used. The water sensitivity index (WSI) is described and methods for making catalysts with a low WSI are described. The sulfur content of the feed to the reforming/aromatics production process is preferably below 50 parts per billion. The catalyst used in the reforming process is preferably a high crush strength catalyst and is preferably prepared by steps including treating L zeolite with a binding enhancement agent prior to binding with a binder such as silica, silica/alumina or alumina.

    Abstract translation: 已经发现使用含有VIII族金属如铂的结合的沸石催化剂从脂肪族产生芳族化合物，即使在进料中的低至3ppm的水浓度下，对水也非常敏感，除非某些催化剂具有低的 使用水敏感指数。 描述了水敏感指数（WSI），并描述了制备低WSI催化剂的方法。 重整/芳烃生产过程的进料的硫含量优选低于50ppm。 在重整过程中使用的催化剂优选是高抗压强度催化剂，并且优选通过以下步骤制备，所述步骤包括在与粘合剂如二氧化硅，二氧化硅/氧化铝或氧化铝结合之前用结合增强剂处理L沸石。

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