Tae Mi Lee

Author:

Tae E. Lee

ISBN #:

1931484724

Author:

Tae Woo Lee

ISBN #:

0754618005

US Patent:

6569226, May 27, 2003

Filed:

Sep 28, 2001

Appl. No.:

09/967890

Inventors:

Stephen E. Dorris - La Grange Park IL
Tae H. Lee - Naperville IL
Uthamalingam Balachandran - Hinsdale IL

Assignee:

The United States of America as represented by the United States Department of Energy - Washington DC

International Classification:

B01D 5322

US Classification:

95 56, 96 4, 96 11

Abstract:

A membrane for separating hydrogen from fluids is provided comprising a sintered homogenous mixture of a ceramic composition and a metal. The metal may be palladium, niobium, tantalum, vanadium, or zirconium or a binary mixture of palladium with another metal such as niobium, silver, tantalum, vanadium, or zirconium.

US Patent:

6726893, Apr 27, 2004

Filed:

Sep 17, 2002

Appl. No.:

10/245039

Inventors:

Tae H. Lee - Naperville IL
Shuangyan Wang - Hinsdale IL
Stephen E. Dorris - LaGrange Park IL
Uthamalingam Balachandran - Hinsdale IL

Assignee:

The University of Chicago - Chicago IL

International Classification:

C01B 308

US Classification:

4236582, 96 7, 96 8, 96 10, 95 54, 95 55, 95 56, 422239, 423579, 4236481

Abstract:

A device and method for separating water into hydrogen and oxygen is disclosed. A first substantially gas impervious solid electron-conducting membrane for selectively passing hydrogen is provided and spaced from a second substantially gas impervious solid electron-conducting membrane for selectively passing oxygen. When steam is passed between the two membranes at disassociation temperatures the hydrogen from the disassociation of steam selectively and continuously passes through the first membrane and oxygen selectively and continuously passes through the second membrane, thereby continuously driving the disassociation of steam producing hydrogen and oxygen.

US Patent:

7087211, Aug 8, 2006

Filed:

Sep 24, 2003

Appl. No.:

10/669832

Inventors:

Uthamalingam Balachandran - Hinsdale IL, US
Shuangyan Wang - Hinsdale IL, US
Stephen E. Dorris - LaGrange Park IL, US
Tae H. Lee - Naperville IL, US

Assignee:

The University of Chicago - Chicago IL

International Classification:

C01B 3/08
B01D 53/22

US Classification:

4236582, 96 7, 96 8, 96 10, 95 54, 95 55, 95 56, 422239, 423579, 4236481

Abstract:

A device and method for separating water into hydrogen and oxygen is disclosed. A first substantially gas impervious solid electron-conducting membrane for selectively passing protons or hydrogen is provided and spaced from a second substantially gas impervious solid electron-conducting membrane for selectively passing oxygen. When steam is passed between the two membranes at dissociation temperatures the hydrogen from the dissociation of steam selectively and continuously passes through the first membrane and oxygen selectively and continuously passes through the second membrane, thereby continuously driving the dissociation of steam producing hydrogen and oxygen. The oxygen is thereafter reacted with methane to produce syngas which optimally may be reacted in a water gas shift reaction to produce COand H.

US Patent:

7604771, Oct 20, 2009

Filed:

May 5, 2006

Appl. No.:

11/418957

Inventors:

Sun-Ju Song - Orland Park IL, US
Tae H. Lee - Naperville IL, US
Ling Chen - Woodridge IL, US
Stephen E. Dorris - LaGrange Park IL, US
Uthamalingam Balachandran - Hinsdale IL, US

Assignee:

UChicago Argonne, LLC - Chicago IL

International Classification:

B28B 3/00
B01D 53/22

US Classification:

264674, 264676, 96 11

Abstract:

A thermal method of making a hydrogen permeable composition is disclosed. A mixture of metal oxide powder and ceramic oxide powder and optionally a pore former is formed and pressed to form an article. The article is dried at elevated temperatures and then sintered in a reducing atmosphere to provide a dense hydrogen permeable portion near the surface of the sintered mixture. The dense hydrogen permeable portion has a higher initial concentration of metal than the remainder of the sintered mixture and is present in the range of from about 20 to about 80 percent by volume of the dense hydrogen permeable portion.

US Patent:

7959716, Jun 14, 2011

Filed:

Sep 30, 2009

Appl. No.:

12/586978

Inventors:

Sun-Ju Song - Orland Park IL, US
Tae H. Lee - Naperville IL, US
Ling Chen - Woodridge IL, US
Stephen E. Dorris - LaGrange Park IL, US
Uthamalingam Balachandran - Hinsdale IL, US

Assignee:

UChicago Argonne, LLC - Chicago IL

International Classification:

B01D 53/22
C04B 35/64

US Classification:

96 11, 96 7, 95 55, 95 56, 429411, 502 4, 264 44, 264666, 264674, 264676, 264681

Abstract:

A hydrogen permeable membrane is disclosed. The membrane is prepared by forming a mixture of metal oxide powder and ceramic oxide powder and a pore former into an article. The article is dried at elevated temperatures and then sintered in a reducing atmosphere to provide a dense hydrogen permeable portion near the surface of the sintered mixture. The dense hydrogen permeable portion has a higher initial concentration of metal than the remainder of the sintered mixture and is present in the range of from about 20 to about 80 percent by volume of the dense hydrogen permeable portion.

US Patent:

8585807, Nov 19, 2013

Filed:

Sep 30, 2011

Appl. No.:

13/250980

Inventors:

Tae H. Lee - Naperville IL, US
Chan Young Park - Naperville IL, US
Yunxiang Lu - Tonawanda NY, US
Stephen E. Dorris - La Grange Park IL, US

Assignee:

UChicago Argonne, LLC - Chicago IL

International Classification:

B01D 53/22

US Classification:

96 12, 95 45, 95 55, 96 4, 96 11

Abstract:

A process for forming a palladium or palladium alloy membrane on a ceramic surface by forming a pre-colloid mixture comprising a powder palladium source, carrier fluid, dispersant and a pore former and a binder. Ultrasonically agitating the precolloid mixture and applying to a substrate with an ultrasonic nozzle and heat curing the coating form a palladium-based membrane.

US Patent:

20070044662, Mar 1, 2007

Filed:

May 5, 2006

Appl. No.:

11/418954

Inventors:

Sun-Ju Song - Orland Park IL, US
Tae Lee - Naperville IL, US
Ling Chen - Woodridge IL, US
Stephen Dorris - LaGrange Park IL, US
Uthamalingam Balachandran - Hinsdale IL, US

Assignee:

The University of Chicago - Chicago IL

International Classification:

B01D 53/22

US Classification:

096004000

Abstract:

A method of making a hydrogen permeable in which a colloid suspension of metal powder and ceramic oxide powder dispersed in an organic carrier is contacted with a porous ceramic substrate to deposit a thin film of the colloid suspension on the substrate. The film is then dried and sintered to provide a two part membrane adhered to the porous ceramic substrate. The two part membrane has a metal powder part of one or more of Ni, Pd, Pd alloys, Nb, Ta, Zr, V or mixtures thereof, and an oxide part of one or more of yttria stabilized zirconia, shrinkable alumina, suitably doped cerates, titanates, zirconates of barium or strotium or mixtures thereof, wherein the metal powder part is present in the range of from about 20 to about 80 percent by volume of the two-part membrane.

US Patent:

20070044663, Mar 1, 2007

Filed:

May 5, 2006

Appl. No.:

11/418955

Inventors:

Sun-Ju Song - Orland Park IL, US
Tae Lee - Naperville IL, US
Ling Chen - Woodridge IL, US
Stephen Dorris - LaGrange Park IL, US
Uthamalingam Balachandran - Hinsdale IL, US

Assignee:

The University of Chicago - Chicago IL

International Classification:

B01D 53/22

US Classification:

096011000

Abstract:

A hydrogen permeable composition having a porous ceramic substrate, and a two part membrane adhered thereto. The two part membrane has a metal powder part and a ceramic oxide part, with the metal powder part being Ni, Pd, Pd alloys, Nb, Ta, Zr, V or mixtures thereof. The oxide part is yttria stabilized zirconia, shrinkable alumina, suitably doped cerates, titanate, zirconates of barium or strontium or mixtures thereof, and the hydrogen flux is at least 20 cmper minute-cmat 500 C. in a 100% hydrogen atmosphere. A paste method of forming the composition is disclosed. A method of extracting hydrogen from a gas is also disclosed.