Jonathan B Lane

US Patent:

6565632, May 20, 2003

Filed:

Dec 17, 2001

Appl. No.:

10/015622

Inventors:

Bart Antonie van Hassel - Getzville NY
Ravi Prasad - East Amherst NY
Jack Chen - Getzville NY
Jonathan Lane - Amherst NY

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

B01D 5322

US Classification:

96 10, 96 11, 95 54, 95 55

Abstract:

An ion-transport membrane assembly including a tubular, ion-transport membrane that is fabricated from one or more ion-transport, ceramic materials capable of ionic transport at an operational temperature of greater than 400Â C. The membrane may be an oxygen transport membrane or a hydrogen transport membrane. A plurality of structural supporting members, fabricated from an open porous material and having an outer cylindrical surface, are inserted within the membrane, without being bonded to the membrane, to inhibit inward collapse of the membrane under application of a pressure applied to an exterior surface of the membrane. The structural supporting members are configured to permit relative movement between the outer surface of the structural supporting member and the interior surface of the tubular membrane during heating to or cooling from the operational temperature thereof.

US Patent:

6838119, Jan 4, 2005

Filed:

Dec 27, 2002

Appl. No.:

10/329440

Inventors:

Jonathan Andrew Lane - Snyder NY, US

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

B05D 302

US Classification:

427226, 4273761, 4273762

Abstract:

A method of manufacturing an ionic conductor to improve oxygen ion conductivity that is otherwise reduced by the presence of deleterious impurities comprising silicon or silicon containing compounds. In accordance with the invention a dissolved salt of a dopant consisting of an alkaline-earth metal is applied to an oxygen ion conducting material composed of doped ceria, doped zirconia, or doped lanthanum gallate and having the impurities. The solution can also be applied with equal success to cation salts and oxides used in making the oxygen ion conducting material. The oxygen ion conducting material with the solution applied thereto is thoroughly mixed and then heated to evaporate the solvent and to decompose the alkaline-earth salt and thereby to form said ionic conductor.

US Patent:

7449262, Nov 11, 2008

Filed:

Dec 9, 2004

Appl. No.:

11/007220

Inventors:

Gervase Maxwell Christie - Buffalo NY, US
Jonathan Andrew Lane - Snyder NY, US

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

H01M 4/64
H01M 4/66
H01M 4/86

US Classification:

429 45, 429 44, 429122, 427115

Abstract:

A current collector and method of forming the same in which a slurry is prepared that contains electrically conductive particles having surface deposits of a metallic oxide on a metal or metal alloy conductor that has a lower weight percentage of the electrically conductive particles than the metal or metal alloy. The slurry is applied to a structure that contains an electrolyte and electrode layers. The resultant coated form is then fired to partly sinter the electrically conductive particles and thereby to obtain porous current collector layers affixed to the electrode layers. The current collector of the present invention is between about 5 microns and about 100 microns thick and preferably has a porosity of between about 10 percent and about 70 percent with pores having a pore size of between about 0. 1 microns and about 20 microns.

US Patent:

7556676, Jul 7, 2009

Filed:

Aug 22, 2006

Appl. No.:

11/507486

Inventors:

Nagendra Nagabhushana - Williamsville NY, US
Jonathan Andrew Lane - Amherst NY, US
Gervase Maxwell Christie - Buffalo NY, US
Bart Antonie van Hassel - Getzville NY, US

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

B01D 53/22

US Classification:

96 11, 96 4, 95 54

Abstract:

A composite oxygen ion transport membrane having a dense layer, a porous support layer, an optional intermediate porous layer located between the porous support layer and the dense layer and an optional surface exchange layer, overlying the dense layer. The dense layer has electronic and ionic phases. The ionic phase is composed of scandia doped, yttrium or cerium stabilized zirconia. The electronic phase is composed of a metallic oxide containing lanthanum, strontium, chromium, manganese and vanadium and optionally cerium. The porous support layer is composed of zirconia partially stabilized with yttrium, scandium, aluminum or cerium or mixtures thereof. The intermediate porous layer, if used, contains the same ionic and electronic phases as the dense layer. The surface exchange layer is formed of an electronic phase of a metallic oxide of lanthanum and strontium that also contains either manganese or iron and an ionic phase of scandia doped zirconia stabilized with yttrium or cerium.

US Patent:

7833314, Nov 16, 2010

Filed:

Apr 30, 2008

Appl. No.:

12/112464

Inventors:

Jonathan Andrew Lane - Amherst NY, US
David M. Reed - E. Amherst NY, US

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

B01D 53/22

US Classification:

95 54, 95 73, 95 78, 96 8, 96 9, 96 60, 96 73, 96 74, 96 83

Abstract:

Purification method and apparatus for purifying a gas stream by oxygen removal. The apparatus includes primary and secondary oxygen separation zones and tubular electrically driven oxygen separation elements. There are more elements in the primary zone than the secondary zone so that low concentrations of oxygen can be obtained in a purified stream and turbulent flow conditions can also be obtained that will permit purification to very low levels. In addition, a junction is provided to connect the tubular separation elements to metallic elements such as manifolds.

US Patent:

7883571, Feb 8, 2011

Filed:

Oct 8, 2010

Appl. No.:

12/900610

Inventors:

Jonathan Andrew Lane - Amherst NY, US
David M. Reed - E. Amherst NY, US

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

B01D 53/22

US Classification:

96 8, 96 73, 96 83, 96 88

Abstract:

Purification method and apparatus for purifying a gas stream by oxygen removal. The apparatus includes primary and secondary oxygen separation zones and tubular electrically driven oxygen separation elements. There are more elements in the primary zone than the secondary zone so that low concentrations of oxygen can be obtained in a purified stream and turbulent flow conditions can also be obtained that will permit purification to very low levels. In addition, a junction is provided to connect the tubular separation elements to metallic elements such as manifolds.

US Patent:

8591718, Nov 26, 2013

Filed:

Dec 7, 2010

Appl. No.:

12/961987

Inventors:

Jonathan Andrew Lane - Amherst NY, US
Gervase Maxwell Christie - Williamsville NY, US
Dante Patrick Bonaquist - Grand Island NY, US

Assignee:

Praxair Technology, Inc. - Danbury CT

International Classification:

C25B 15/00
C25C 7/08
C25B 1/00
C25C 1/02
C25C 1/10
C25B 1/02

US Classification:

205349, 205555, 205628, 205629, 205633, 205634, 205637

Abstract:

A method and apparatus for producing a carbon monoxide containing product in which cathode and anode sides of an electrically driven oxygen separation device are contacted with carbon dioxide and a reducing agent, respectively. The carbon dioxide is reduced to carbon monoxide through ionization of oxygen and the reducing agent lowers the partial pressure of oxygen at the anode side to partially drive oxygen ion transport within the device through the consumption of the oxygen and to supply heat. The lowering of oxygen partial pressure reduces voltage and therefore, electrical power required to be applied to the device and the heat is supplied to heat the device to an operational temperature and to the reduction of the carbon dioxide occurring at the cathode side. The device can be used as part of an integrated apparatus in which the carbon dioxide is supplied from a waste stream of a process plant.

US Patent:

20060236719, Oct 26, 2006

Filed:

Apr 22, 2005

Appl. No.:

11/111837

Inventors:

Jonathan Lane - Snyder NY, US
Dante Bonaquist - Grand Island NY, US
Eric Shreiber - Getzville NY, US
Bayram Arman - Grand Island NY, US

International Classification:

F25J 3/00

US Classification:

062648000, 062924000

Abstract:

A method of purifying a gas stream by removing oxygen from the gas stream in which the gas stream is introduced into a series of electrically driven oxygen separation zones that separate the oxygen from the gas stream. Each of the electrically driven oxygen separation zones has an electrolyte that conducts oxygen ions upon the application of the voltage to electrodes sandwiching the electrolyte. The voltage applied to each of the electrodes of the separation zones is selected such that an ionic current induced in the electrolyte within a particular zone that is no greater than a limiting current. When voltage is applied in such manner, the electrical power that is consumed is reduced over the power that would otherwise be consumed had a constant voltage been applied to all zones. The gas stream can be a crude argon stream obtained from a crude argon column or a crude nitrogen stream obtained from a pressure swing adsorption unit or a polymeric membrane unit.