公开(公告)号：US20130343962A1

公开(公告)日：2013-12-26

申请号：US14010887

申请日：2013-08-27

申请人： Naresh Suchak ,  Zhixiong Cha ,  Frank R. Fitch

发明人： Naresh Suchak ,  Zhixiong Cha ,  Frank R. Fitch

IPC分类号： B01J19/00

摘要： A method and apparatus for increasing the concentration of oxygen in the reaction medium present in the oxidation reactor. A volume of aqueous medium from the oxidation reactor is removed and pressurized and oxygen is added to it. The oxygen-rich volume of aqueous medium is then reintroduced into the oxidation reactor at an increased pressure to ensure adequate mixing with the aqueous medium having a lower content of oxygen.

摘要翻译： 一种提高氧化反应器中存在的反应介质中的氧浓度的方法和装置。 去除来自氧化反应器的体积的水性介质并加压，并向其中加入氧气。 然后将水介质的富氧体积以增加的压力重新引入氧化反应器，以确保与具有较低氧含量的水性介质充分混合。

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：US06309445B1

公开(公告)日：2001-10-30

申请号：US09442973

申请日：1999-11-18

申请人： Craig S. Gittleman ,  Adeola Florence Ojo ,  Frank R. Fitch ,  Martin Bulow ,  Vijay R. Balse ,  Philip Connolly

发明人： Craig S. Gittleman ,  Adeola Florence Ojo ,  Frank R. Fitch ,  Martin Bulow ,  Vijay R. Balse ,  Philip Connolly

IPC分类号： B01D5304

CPC分类号： B01D53/02 ,  B01D53/0462 ,  B01D53/0476 ,  B01D53/261 ,  B01D2253/108 ,  B01D2253/1085 ,  B01D2257/504 ,  Y02C10/04 ,  Y02C10/08 ,  Y10S95/902

摘要： Carbon dioxide is removed from gas streams comprised predominantly of gases that are less strongly adsorbed than is 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 and at least 75% of the exchangeable cations of which are potassium ions, 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 of about 0 to 80° C.

摘要翻译： 二氧化碳从主要由气体组成的气流中除去，这些气体比二氧化碳不太强吸附的气体，通过使气流通过X型沸石床，其硅与铝的原子比不大于约1.15和至少75％ 其可交换的阳离子是钾离子，从而从气流中吸附二氧化碳。 当应用于在约0至80℃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：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。