公开(公告)号：US06454274B2

公开(公告)日：2002-09-24

申请号：US09809389

申请日：2001-03-15

Applicant: James Eric White ,  Prasad Apte ,  Thomas Gilbert Halvorson ,  Victor Emmanuel Bergsten ,  Ajit Yeshwant Sane ,  Terry Joseph Mazanec

Inventor： James Eric White ,  Prasad Apte ,  Thomas Gilbert Halvorson ,  Victor Emmanuel Bergsten ,  Ajit Yeshwant Sane ,  Terry Joseph Mazanec

IPC: F16J1502

CPC classification number: F16J15/22 ,  F16J15/062 ,  F16J15/18

Abstract: A joint assembly for joining a ceramic membrane of tubular form to a tube sheet used in supporting the ceramic membrane within a reactor. The ceramic membrane is received within a fixture connected to the tube sheet and a follower, extending into the fixture, exerts a force on a high temperature sealing element located between the fixture and the ceramic membrane to effect a seal and to hold the ceramic membrane in place. The force can be exerted directly on the sealing element or on the ceramic membrane itself.

Abstract translation: 用于将管状陶瓷膜接合到用于在反应器内支撑陶瓷膜的管板的接头组件。 陶瓷膜被接纳在与管板连接的固定器内，并且延伸到夹具中的随动件对位于夹具和陶瓷膜之间的高温密封元件施加力，以实现密封并将陶瓷膜保持在 地点。 该力可以直接施加在密封元件或陶瓷膜本身上。

公开(公告)号：US06264811B1

公开(公告)日：2001-07-24

申请号：US09532123

申请日：2000-03-21

Applicant: Weitung Wang ,  Jack C. Chen ,  Prasad Apte ,  Terry Joseph Mazanec

Inventor： Weitung Wang ,  Jack C. Chen ,  Prasad Apte ,  Terry Joseph Mazanec

IPC: C25B1300

CPC classification number: B01D67/0093 ,  B01D53/228 ,  B01D53/32 ,  B01D69/00 ,  B01D71/024 ,  B01D2257/104 ,  B01D2325/26 ,  C01B13/0255

Abstract: The present invention provides an ion conducting ceramic membrane selectively permeable to a gas, for instance oxygen and a method of treating such a membrane to improve permeation through the membrane. The membrane is formed by a mass of a substance through which ions of the gas migrate. The mass has two opposed surfaces where dissociation and ionization of the gas occurs and gas ions release electrons and recombine to form molecules of the gas, respectively. At least one of said two opposed surfaces is treated by a removal of surface material to produce surface irregularities of increased area and therefore an increase in total surface area of a treated surface to in turn increase permeation of the gas. Preferably, both surfaces of the membrane are treated by chemical etching techniques, although sand blasting and ion etching are other possible surface treatments in accordance with the present invention.

Abstract translation: 本发明提供了对气体（例如氧气）可选择性渗透的离子导电陶瓷膜，以及处理这种膜以改善通过膜的渗透的方法。 膜由质量的物质形成，气体的离子通过该物质迁移。 质量具有两个相对的表面，其中气体的离解和电离发生，气体离子释放电子并重新组合以形成气体分子。 通过去除表面材料来处理所述两个相对表面中的至少一个，以产生增加的面积的表面不规则性，因此处理表面的总表面积的增加又增加了气体的渗透。 优选地，通过化学蚀刻技术处理膜的两个表面，尽管喷砂和离子蚀刻是根据本发明的其它可能的表面处理。