Gas separation: apparatus – Apparatus for selective diffusion of gases – Hollow fiber or cylinder
Reexamination Certificate
2006-10-24
2006-10-24
Lawrence, Frank M. (Department: 1724)
Gas separation: apparatus
Apparatus for selective diffusion of gases
Hollow fiber or cylinder
C096S011000, C055S524000, C055SDIG007
Reexamination Certificate
active
07125440
ABSTRACT:
A hydrogen purification system and method that utilizes a hydrogen separator with a novel composite structure. The hydrogen separator has a first porous layer of a hydrogen permeable material, such as a palladium alloy. A solid layer of the same hydrogen permeable material is then disposed onto the first porous layer. A pressure differential is created across the structure of the composite hydrogen separator. The porous layer of hydrogen permeable material supports the solid layer and enables the solid layer to withstand large pressure differentials. Furthermore, the porous layer of the hydrogen permeable material bonds to the solid layer, thereby greatly increasing the effective surface area of the solid layer that is exposed to hydrogen gas. Accordingly, a large flow rate of hydrogen gas can be obtained in a small amount of space.
REFERENCES:
patent: 3413777 (1968-12-01), Langley et al.
patent: 3428476 (1969-02-01), Myers et al.
patent: 4528003 (1985-07-01), Dittrich et al.
patent: 4536196 (1985-08-01), Harris
patent: 4655797 (1987-04-01), Iniotakis et al.
patent: 4699637 (1987-10-01), Iniotakis et al.
patent: 5215729 (1993-06-01), Buxbaum
patent: 5259870 (1993-11-01), Edlund
patent: 5498278 (1996-03-01), Edlund
patent: 5614001 (1997-03-01), Kosaka et al.
patent: 5734092 (1998-03-01), Wang et al.
patent: 5738708 (1998-04-01), Peachey et al.
patent: 5782959 (1998-07-01), Yang et al.
patent: 5827569 (1998-10-01), Akiyama et al.
patent: 6152987 (2000-11-01), Ma et al.
patent: 6183542 (2001-02-01), Bossard
patent: 6214090 (2001-04-01), Dye et al.
patent: 6641647 (2003-11-01), Uemura et al.
patent: 6828037 (2004-12-01), Uemura et al.
patent: 2001/0000380 (2001-04-01), Buxbaum
patent: 2002/0020298 (2002-02-01), Drost et al.
patent: 2003/0183080 (2003-10-01), Mundschau
patent: 2003/0190486 (2003-10-01), Roa
patent: 2004/0237779 (2004-12-01), Ma et al.
patent: 2005/0072304 (2005-04-01), Etievant et al.
See Attached List of Professional Papers (11) references.
Nanostructured thin palladium-silver membranes: Effects of grain size on gas permeation properties A. McCool, Y. S. Lin* Department of Chemical Engineering, University of Cincinnati Cincinnati, OH 45221-0171, USA E-mail. Jlin@alpha.che.uc.edu.
A study on the palladium
ickel composite membrane by vacuum electrodeposition Seung-Eun Nam, Kew-Ho Lee * Membranes and Separation Research Center, Korea Research Institute of Chemical Technology, P.O. Box 107, Yusung, Taejon 305-606, South Korea Received I Jun. 1999; received in revised form Sep. 28, 1999, accepted Nov. 15, 1999.
Preparation of a palladium alloy composite membrane supported in a porous stainless steel by vacuum electrodeposition Seung-Eun Nam, Sang-Hak Lee, Kew-Ho Lee* Membranes and Separation Center Korea Research Institute of Chemical Technology PO Box 107, Yusung, Taejon 305-606, South Korea Received Mar. 26, 1998; received in revised form Mar. 26, 1998; accepted Jul. 29, 1998.
Defect-Free. Palladium Membranes on Porous Stainless-Steel Support Peter P. Mardilovich, Ying She, and Yi Hua Ma Dept. of Chemical Engineering, Worcester Polytechnic Institute Worcester, MA 01609 Min-Hon Rei, China Technical Consulting, Inc., Taipei, Taiwan, R.O.C.
Fabrication of thin metallic membranes by MOCVD and sputtering George Xomeritakis, Y.S. Lin* Department of Chemical Engineering, University of Cincinnati Cincinnati, OH 45221-0171, USA Received Jan. 15, 1997; received in revised form Mar. 31, 1997; accepted Apr. 2, 1997.
Structurally stable composite Pd-Ag alloy membranes: Introduction of a diffusion barrier J. Shu, A. Adnot, B.P.A. Grandjean *, S. Kaliaguine Department of Chemical Engineering and CERPIC, Laval University Quebec G1K 7P4, Canada Received Jul. 26, 1995; accepted Jan. 4, 1996.
The relationship between intermetallic diffusion and David J. Edlund , Jack McCarthy b 'Bend Research, Inc., 64550 Research Road, Bend, OR 97701-8599, USA b Oregon Graduate Institute, P.O. Box 91000, Portland, OR 97291-1000, USA H. Zuchner, HA. Schluter T. Rauf, and R. Hergemoller Institut fur Physikalische Chemie der Universitat Munster, SchloBplatz 4, W-400 Munster.
Synthesis and hydrogen permeation properties of ultrathin palladium—silver alloy membranes V. Jayaraman, Y.S. Lin * Department of Chemical Engineering, University of Cincinnati Cincinnati. OH 45221-0171, USA Received Sep. 12, 1994; accepted in revised form Feb. 6, 1995.
Nanostructured palladium membrane synthesis by magnetron sputtering Kenneth J. Bryden, Jackie Y. Ying* Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA Received Jan. 11, 1995; accepted Apr. 3, 1995.
Properties of Thin Palladium-Films and Their Hydrogen-Permeability H. Zuchner, HA. Schluter T. Rauf, and R. Hergemoller Institut fur Physikalische Chemie der Universitat Munster, SchloBplatz 4, W-4000 Munster.
Morphological changes of Pd-Ag membranes upon hydrogen permeation Journal of Materials Science Letters 16 (1997) 294-297 J. Shu, B. E. W. Bongondo, B. P. A. Grandjean, S. Kaliaguine Department of Chemical Engineering, Laval University, Quebec, Canada G1K 7P4.
Bossard Peter R.
Petkie Ronald R.
Lamorte & Associates
Lawrence Frank M.
LandOfFree
Composite structure for high efficiency hydrogen separation... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Composite structure for high efficiency hydrogen separation..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite structure for high efficiency hydrogen separation... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3638161