公开(公告)号：US06596256B1

公开(公告)日：2003-07-22

申请号：US09648798

申请日：2000-08-28

申请人： Adeola F. Ojo ,  Frank R. Fitch ,  Martin Bülow ,  Craig S. Gittleman ,  Sudhakar R. Jale

发明人： Adeola F. Ojo ,  Frank R. Fitch ,  Martin Bülow ,  Craig S. Gittleman ,  Sudhakar R. Jale

IPC分类号： C01B3922

CPC分类号： C01B39/22 ,  B01D2257/102 ,  B01D2257/11 ,  B01D2257/402 ,  B01D2257/404 ,  B01D2257/504 ,  B01D2257/702 ,  B01J20/18 ,  B01J20/186 ,  Y02C10/08 ,  Y02C20/10 ,  Y10S423/21

摘要： Low silicon sodium X zeolite containing little or no sodium A zeolite as by-product, is prepared by direct synthesis from sodium ion-containing hydrogels, the crystallization step being carried out by maintaining the hydrogels at a temperature below about 70° C., and preferably in the range of about 50 to about 70° C. for the duration of the crystallization step. Preferably, the ratios of components in the solutions used to make the hydrogel are such that in the hydrogel the silica/alumina molar ratio will be in the range of about 2.25:1 to about 2.4:1; the sodium oxide to silica molar ratio will be in the range 1.6:1 to about 1.9:1; and the water to sodium oxide molar ratio will be greater than about 60:1.

摘要翻译： 通过从含钠离子的水凝胶直接合成制备含有很少或不含有钠A沸石的低硅钠X沸石，结晶步骤通过将水凝胶保持在低于约70℃的温度下进行，和 优选在约50至约70℃的范围内，在结晶步骤的持续时间内。 优选地，用于制备水凝胶的溶液中组分的比例使得在水凝胶中二氧化硅/氧化铝的摩尔比将在约2.25:1至约2.4:1的范围内; 氧化钠与二氧化硅的摩尔比将在1.6:1至约1.9:1的范围内; 并且水与氧化钠的摩尔比将大于约60:1。

公开(公告)号：US06583081B2

公开(公告)日：2003-06-24

申请号：US09773441

申请日：2001-02-01

申请人： Karl Seff ,  Hyun Sook P. Cordes ,  Martin Bülow ,  Frank R. Fitch ,  Adeola F. Ojo ,  Sudhakar R. Jale ,  Dongmin Shen

发明人： Karl Seff ,  Hyun Sook P. Cordes ,  Martin Bülow ,  Frank R. Fitch ,  Adeola F. Ojo ,  Sudhakar R. Jale ,  Dongmin Shen

IPC分类号： B01J2906

CPC分类号： C01B39/026 ,  B01J20/186 ,  B01J29/061

摘要： Zeolites exchanged with lithium, rubidium, cesium cations and trivalent cations are prepared by first partially, fully or excessively ion-exchanging a sodium-containing zeolite, a potassium-containing zeolite or a sodium- and potassium-containing zeolite with trivalent cations, then calcining the partially, fully or excessively trivalent cation-exchanged zeolite, and then ion exchanging the calcined zeolite with lithium rubidium, cesium cations, thereby replacing hydrogen and any sodium and/or potassium cations remaining in the zeolite with lithium, rubidium, cesium cations, whereby trivalent cations present in the zeolite will not be substantially replaced by the lithium ions.

公开(公告)号：US06407025B1

公开(公告)日：2002-06-18

申请号：US09501905

申请日：2000-02-10

申请人： Alfons Brandt ,  Baldur Unger ,  Hartmut Tschritter ,  Martin Bülow ,  Frank R. Fitch ,  Adeola F. Ojo

发明人： Alfons Brandt ,  Baldur Unger ,  Hartmut Tschritter ,  Martin Bülow ,  Frank R. Fitch ,  Adeola F. Ojo

IPC分类号： B01J2908

CPC分类号： B01J29/061 ,  B01J20/186 ,  B01J29/70 ,  B01J29/7049 ,  B01J37/30 ,  C01B39/026

摘要： Zeolites exchanged with lithium cations and polyvalent cations are prepared by first partially ion-exchanging a sodium-containing zeolite, a potassium-containing zeolite or a sodium- and potassium-containing zeolite with polyvalent cations, then heat-treating the partially polyvalent cation-exchanged zeolite, then ion exchanging the heat-treated zeolite with ammonium cations, and then reacting the ammonium cation-exchanged zeolite with a water-soluble lithium compound under conditions which result in the removal of ammonia from the reaction zone.

摘要翻译： 与锂阳离子和多价阳离子交换的沸石通过首先将含钠沸石，含钾沸石或含钠和钾的沸石与多价阳离子部分离子交换，然后热处理部分多价阳离子交换 沸石，然后将热处理的沸石与铵阳离子进行离子交换，然后使铵阳离子交换的沸石与水溶性锂化合物在导致从反应区除去氨的条件下反应。

公开(公告)号：US06409800B1

公开(公告)日：2002-06-25

申请号：US09648982

申请日：2000-08-28

申请人： Adeola F. Ojo ,  Frank R. Fitch ,  Martin Bülow

发明人： Adeola F. Ojo ,  Frank R. Fitch ,  Martin Bülow

IPC分类号： B01D5304

CPC分类号： B01D53/02 ,  B01D53/0462 ,  B01D2253/108 ,  B01D2253/1085 ,  B01D2257/404 ,  B01D2257/504 ,  B01D2257/702 ,  B01D2257/80 ,  B01D2259/4143 ,  B01D2259/4146 ,  B01D2259/416 ,  Y02C10/08 ,  Y10S95/902

摘要： Nitrogen oxides and low molecular weight hydrocarbons are removed from air by subjecting the air to a temperature swing adsorption process using as the adsorbent a composite zeolite product containing both zeolite A and zeolite X. The composite zeolite product is preferably prepared by forming a mixture of an agglomerate of silica and sodium zeolite X having a Si/Al atomic ratio in the range of about 0.9 to less than about 1.2 and a water-soluble sodium aluminate salt; maintaining the mixture at a temperature in the range of about 25 to about 100° C. for a period of time sufficient to convert at least 50% of the silica to sodium zeolite A; and at least partially exchanging the zeolite A-containing product with divalent cations, preferably calcium ions.

摘要翻译： 通过使空气进行变温吸附方法从空气中除去氮氧化物和低分子量烃，使用含有沸石A和沸石X的复合沸石产物作为吸附剂。复合沸石产物优选通过形成 Si / Al原子比在约0.9至小于约1.2范围内的二氧化硅和钠沸石X的附聚物和水溶性铝酸钠盐; 将混合物保持在约25至约100℃范围内的温度下足以将至少50％的二氧化硅转化为沸石A的时间; 并且至少部分地将含沸石A的产物与二价阳离子，优选钙离子交换。

公开(公告)号：US06416569B1

公开(公告)日：2002-07-09

申请号：US09648802

申请日：2000-08-28

申请人： Martin Bülow ,  Adeola F. Ojo ,  Frank R. Fitch ,  Baldur Unger ,  Alfons Brandt

发明人： Martin Bülow ,  Adeola F. Ojo ,  Frank R. Fitch ,  Baldur Unger ,  Alfons Brandt

IPC分类号： B01D5304

CPC分类号： C01B39/023 ,  B01J20/186 ,  B01J2220/42 ,  Y02C10/08 ,  Y02C20/10

摘要： Nitrogen oxides and low molecular weight hydrocarbons are removed from air by subjecting the air to a temperature swing adsorption process using as the adsorbent a composite zeolite product containing both zeolite type A and zeolite type X. The composite zeolite product is prepared by crystallizing a sodium ion- or sodium ion- and potassium ion-containing alumina-silica hydrogel under conditions which result in the production of a zeolitic composite which contains both zeolite type A and zeolite type X crystal domains. In a preferred embodiment, calcium ions constitute a substantial number of the composite's exchangeable cations and the type X portion of the composite zeolite product has a silicon-to-aluminum atomic ratio in the range of 0.9 to less than 1.15. The nitrogen oxide- and hydrocarbon-selective adsorbent can be incorporated into an atmospheric air prepurification plant downstream of a water vapor-selective adsorbent and a carbon dioxide-selective adsorbent.

摘要翻译： 通过使空气进行变温吸附方法，从空气中除去氮氧化物和低分子量烃，使用含有沸石A型和沸石型X的复合沸石产物作为吸附剂。复合沸石产物通过使钠离子 - 或含钠离子和钾离子的氧化铝 - 二氧化硅水凝胶在导致生成含有A型沸石和X型晶体结构域的沸石复合材料的条件下进行。 在优选的实施方案中，钙离子构成了大量的复合材料的可交换阳离子，并且复合沸石产品的X型部分的硅 - 铝原子比在0.9至小于1.15的范围内。 氮氧化物和烃选择性吸附剂可以并入到水蒸汽选择性吸附剂和二氧化碳选择性吸附剂下游的大气空气预纯化装置中。

公开(公告)号：US07214331B2

公开(公告)日：2007-05-08

申请号：US10787606

申请日：2004-02-26

申请人： Weibin Jiang ,  Adeola F. Ojo ,  Sudhakar R. Jale ,  Satish S. Tamhankar ,  Bruce Walter Uhlman

发明人： Weibin Jiang ,  Adeola F. Ojo ,  Sudhakar R. Jale ,  Satish S. Tamhankar ,  Bruce Walter Uhlman

IPC分类号： C01B3/26

CPC分类号： B01J21/066 ,  B01J23/002 ,  B01J23/464 ,  B01J23/63 ,  B01J23/83 ,  B01J23/894 ,  B01J23/8993 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0242 ,  B01J2523/00 ,  C01B3/386 ,  C01B3/40 ,  C01B2203/0261 ,  C01B2203/1017 ,  C01B2203/1023 ,  C01B2203/1047 ,  C01B2203/1082 ,  Y02C20/20 ,  Y02P20/142 ,  Y02P20/52 ,  B01J2523/31 ,  B01J2523/822

摘要： An improved process for the catalytic partial oxidation of hydrocarbons to produce hydrogen and carbon monoxide is disclosed. The process also utilizes a novel catalyst configuration containing at least two serially aligned layers containing a noble metal or transition metal catalyst supported on a support. Alternatively the process employs only the first layer of a catalytically active metal dispersed on an inert carrier support to partially oxidize hydrocarbons.

摘要翻译： 公开了一种用于烃的催化部分氧化以产生氢气和一氧化碳的改进方法。 该方法还使用包含至少两个串联取向的层的新型催化剂构型，该层包含负载在载体上的贵金属或过渡金属催化剂。 或者，该方法仅使用分散在惰性载体载体上的第一层催化活性金属部分氧化烃。

公开(公告)号：US5531808A

公开(公告)日：1996-07-02

申请号：US363187

申请日：1994-12-23

申请人： Adeola F. Ojo ,  Frank R. Fitch ,  Martin Bulow

发明人： Adeola F. Ojo ,  Frank R. Fitch ,  Martin Bulow

IPC分类号： B01D53/02 ,  B01D53/04 ,  B01D53/26 ,  B01J20/08 ,  B01J20/10 ,  B01J20/18 ,  F25J3/04 ,  F25J3/08 ,  B01D53/047

CPC分类号： B01D53/04 ,  B01D2253/108 ,  B01D2253/1085 ,  B01D2253/30 ,  B01D2257/50 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2259/40083 ,  B01D2259/401 ,  B01D2259/402 ,  B01D2259/416 ,  B01D53/02 ,  B01D53/0462 ,  B01D53/047 ,  Y02C10/04 ,  Y02C10/08 ,  Y10S95/902

摘要： Carbon dioxide is removed from gas streams comprised predominantly of gases that are less polar than carbon dioxide by passing the gas stream through a bed of type X zeolite having a silicon to aluminum atomic ratio not greater than about 1.15, thereby adsorbing the carbon dioxide from the gas stream. The process is particularly advantageous when applied to the removal of low levels of carbon dioxide from gas streams at temperatures above 20.degree. C.

摘要翻译： 通过使气流通过硅与铝原子比不大于约1.15的X型沸石床，从主要由二氧化碳极性小的气体中除去二氧化碳，从而吸附二氧化碳 气流。 当应用于在高于20℃的温度下从气流中除去低水平的二氧化碳时，该方法是特别有利的。

公开(公告)号：US06350298B1

公开(公告)日：2002-02-26

申请号：US09426994

申请日：1999-10-26

申请人： Bao-Lian Su ,  Martin Bulow ,  Jean-Luc Blin ,  Adeola F. Ojo ,  Sudhakar Jale ,  Dongmin Shen ,  Qing Min Wang ,  Frank R. Fitch

发明人： Bao-Lian Su ,  Martin Bulow ,  Jean-Luc Blin ,  Adeola F. Ojo ,  Sudhakar Jale ,  Dongmin Shen ,  Qing Min Wang ,  Frank R. Fitch

IPC分类号： B01D53047

CPC分类号： B01D53/02 ,  B01D53/0462 ,  B01D53/047 ,  B01D2253/104 ,  B01D2253/108 ,  B01D2253/112 ,  B01D2256/12 ,  B01D2257/102 ,  B01D2257/402 ,  B01D2257/502 ,  B01D2257/504 ,  B01J20/186 ,  Y02C10/08 ,  Y02C20/10 ,  Y10S95/902

摘要： Novel compositions of molecular sieve adsorbents are provided in which at least 50% of the exchangeable cations are selected from those of Li, Ca, Ag and Cu and which have within their pore system metal oxide, metal oxide precursors or mixtures thereof. These compositions are useful for the separation of gases and, in particular, the separation of nitrogen from air to produce oxygen or oxygen-enriched gas.

摘要翻译： 提供分子筛吸附剂的新型组合物，其中至少50％的可交换阳离子选自Li，Ca，Ag和Cu的那些，并且在它们的孔体系内具有金属氧化物，金属氧化物前体或其混合物。 这些组合物可用于分离气体，特别是氮气与空气分离以产生氧气或富氧气体。

公开(公告)号：US5464467A

公开(公告)日：1995-11-07

申请号：US287324

申请日：1994-08-08

申请人： Frank R. Fitch ,  Martin Bulow ,  Adeola F. Ojo

发明人： Frank R. Fitch ,  Martin Bulow ,  Adeola F. Ojo

IPC分类号： B01J20/18 ,  B01D53/047

CPC分类号： B01J20/186 ,  Y10S423/21 ,  Y10S95/902

摘要： Type X zeolites whose charge-compensating cations are composed of 95 to 50% lithium ions, 4 to 50% of one or more of aluminum, cerium, lanthanum and mixed lanthanides and 0 to 15% of other ions. The zeolites preferentially adsorb nitrogen from gas mixtures.

摘要翻译： X型沸石，其电荷补偿阳离子由95至50％的锂离子，4至50％的一种或多种铝，铈，镧和混合镧系元素以及0至15％的其他离子组成。 沸石优先从气体混合物中吸附氮气。

公开(公告)号：US5616170A

公开(公告)日：1997-04-01

申请号：US515184

申请日：1995-08-11

申请人： Adeola F. Ojo ,  Frank R. Fitch ,  Martin Bulow

发明人： Adeola F. Ojo ,  Frank R. Fitch ,  Martin Bulow

IPC分类号： B01D53/02 ,  B01D53/04 ,  B01J20/18 ,  C01B21/04 ,  B01D53/047

CPC分类号： B01D53/02 ,  B01D53/04 ,  B01J20/18 ,  B01D2253/108 ,  B01D2256/10 ,  B01D2257/102 ,  B01D53/047 ,  Y10S95/902

摘要： Chabazite, offretite, erionite, levyne, mordenite, gmelinite, zeolite A, zeolite T, EMC-2, ZSM-3, ZSM-18, ZK-5, zeolite L, and beta zeolite whose exchangeable cations are composed of 95 to 50% lithium ions, 4 to 50% of one or more of aluminum, cerium, lanthanum and mixed lanthanides and 0 to 15% of other ions are prepared by ion-exchanging the base zeolite with water-soluble trivalent ion salts and with water soluble lithium salts. The zeolites preferentially adsorb nitrogen from gas mixtures.

摘要翻译： 沸石A，沸石T，EMC-2，ZSM-3，ZSM-18，ZK-5，沸石L和β沸石，可交换阳离子为95〜50％ 通过将碱沸石与水溶性三价离子盐和水溶性锂盐离子交换来制备锂离子，4至50％的铝，铈，镧和混合镧系元素和0至15％的其它离子中的一种或多种 。 沸石优先从气体混合物中吸附氮气。