Air Products and Chemicals, Inc.

Diamonex, Incorporated

Other

Paul N Dyer

Diwakar Garg

Michael Francis Carolan

Leslie E Schaffer

Robin Edward Richards

Ernest L Wrecsics

Ronald Pierantozzi

Carl F Mueller

Robert L Iampietro

Vincent L Magnotta

Robert A Holzl

Steven Lee Russek

Duane B Dimos

Stephen M Fine

Howard P Withers, Jr

Robert M Thorogood

John A Norman

Merrill Anderson Wilson

Dale M Taylor

Stephen Andrew Motika

Eric Minford

Christopher Ceccarelli

James M LaBar, Sr

Fred Moseley

Fred M Kimock

Swaminathan Sunder

Andrew Francis Nordquist

Raymond Ashton Cutler

Jeffrey D Bright

Robert E Stevens

Robert E Benander

Wilman Tsai

Keith R Fabregas

Diwaker Garg

Alexander Makitka, Iii

Richard W Kidd

Beth A Klucher

Sui-Yuan Lynn

Patrick Benjamin Alba

Benjamin H Tilley

Shankar Nataraj

Brett Tamatea Henderson

Ward D Halverson

Richard E Tressler

Stuart Adler

Mark A Pellman

Darryl Paul Butt

Beth A Muratore

David W Prouse

George Vakerlis

Yvonne R DeKay

Rene Hendrick Elias Van Doorn

Carl F Meuller

Stephen A Motika

Patrick B Alba

This invention presents a new class of multicomponent metallic oxides which are particularly suited toward use in fabricating components used in processes for producing syngas. The non-stoichiometric, A-site rich compositions of the present invention are represented by the formula (Ln Ca ) FeO wherein Ln is La or a mixture of lanthanides comprising La, and wherein 1.0>x>0.5, 1.1&gE;y>1.0 and &dgr; is a number which renders the composition of matter charge neutral. Solid-state membranes formed from these compositions provide a favorable balance of oxygen permeance and resistance to degradation when employed in processes for producing syngas. This invention also presents a process for making syngas which utilizes such membranes.

Mixed conducting membranes for syngas production

Natural gas or other methane-containing feed gas is converted to a C.sub.5 -C.sub.19 hydrocarbon liquid in an integrated system comprising an oxygenative synthesis gas generator, a non-oxygenative synthesis gas generator, and a hydrocarbon synthesis process such as the Fischer-Tropsch process. The oxygenative synthesis gas generator is a mixed conducting membrane reactor system and the non-oxygenative synthesis gas generator is preferably a heat exchange reformer wherein heat is provided by hot synthesis gas product from the mixed conducting membrane reactor system. Offgas and water from the Fischer-Tropsch process can be recycled to the synthesis gas generation system individually or in combination.

Synthesis gas production by mixed conducting membranes with integrated

An electrochemical device for separating oxygen from an oxygen-containing gas comprises a plurality of planar ion-conductive solid electrolyte plates and electrically-conductive gas-impermeable interconnects assembled in a multi-cell stack. Electrically-conductive anode and cathode material is applied to opposite sides of each electrolyte plate. A gas-tight anode seal is bonded between the anode side of each electrolyte plate and the anode side of the adjacent interconnect. A regulating electrode, applied to the anode side of each electrolyte plate between the anode seal and the edge of the anode, eliminates anode seal failure by maintaining the 24-hour anode seal power density below about 1.5 .mu.W/cm.sup.2. A gas-tight seal is applied between the cathode sides of each electrolyte plate and the adjacent interconnect such that the anode and cathode seals are radially offset on opposite sides of the plate. The combination of regulating electrodes and offset seals is particularly effective in eliminating anode seal failure.

Separation of oxygen from oxygen-containing gas

The present invention presents a fluid separation device capable of separating oxygen from an oxygen-containing gaseous mixture which utilizes at least one solid-state membrane comprising a dense mixed conducting multicomponent metallic oxide layer formed from a mixed conducting multicomponent metallic oxide represented by the formula

Fluid separation devices capable of operating under high carbon dioxide

The present invention presents a new class of multicomponent metallic oxides which are particularly suited toward use in fabricating component used in solid-state oxygen separation devices. The compositions of the present invention are represented by the formula Ln.sub.x A'.sub.x ' Co.sub.y Fe.sub.y' Cu.sub.y' O.sub.3-z wherein Ln is an element selected from the f block lanthanides as represented by the IUPAC periodic table of the elements, A' is selected from strontium or calcium, x&gt;0, y&gt;0, y'&gt;0, x +x'=1, y +y'+y'=1, 0.ltoreq.y'&lt;0.4 and z is a number which renders the composition of matter charge neutral. These compositions provide a favorable balance of oxygen permeance, resistance of degradation when employed in such devices under high oxygen partial pressures and possess coefficients of thermal expansion which are compatible with other materials used to fabricate such devices.

Compositions capable of operating under high oxygen partial pressures

An electrochemical device is disclosed comprising a plurality of planar electrolytic cells connected in series, each cell having an oxygen ion-conducting electrolyte layer, an anode layer and a cathode layer associated with the electrolyte layer, electrically conductive interconnect layers having gas passages situated therein for transporting gaseous streams, which interconnect layers electrically connect the anode layer of each electrolytic cell to the cathode layer of an adjacent planar cell, and sealing means positioned between the interconnect layers and the electrolytic cells to provide a gas-tight seal therebetween. The configuration of the interconnect layer and the placement of the seal means provides a separation between the seal and the conductive pathway of electrons between the anode layer and cathode layer which prevents corrosion or deterioration of the seal.

Series planar design for solid electrolyte oxygen pump

The present invention presents a new class of multicomponent metallic oxides which are particularly suited toward use in fabricating components used in solid-state oxygen separation devices. The compositions of the present invention are represented by the formula Ln.sub.x A'.sub.x' A'.sub.x' B.sub.y B'.sub.y' B'.sub.y' O.sub.3-z, wherein Ln is an element selected from the f block lanthanides, A' is selected from Group 2, A' is selected from Groups 1, 2 and 3 and the f block lanthanides, and B,B',B' are independently selected from the d block transition metals, excluding titanium and chromium, wherein 0.ltoreq.x&lt;1, 0&lt;x'&lt;1, 0.ltoreq.x'&lt;1, 0&lt;y&lt;1.1, 0&lt;y'&lt;1.1, 0&lt;y'&lt;1.1, x+x'+x'=1.0, 1.1&gt;y+y'+y'&gt;1.0 and z is a number which renders the compound charge neutral wherein such elements are represented according to the Periodic Table of the Elements adopted by IUPAC. These compositions provide superior resistance to degradation when employed in such devices under process conditions of high carbon dioxide and water partial pressures.

Coompositions capable of operating under high carbon dioxide partial

The present invention is a method for manufacturing inorganic membranes which are capable of separating oxygen from oxygen-containing gaseous mixtures. The membranes comprise a porous composite of a thin layer of a multicomponent metallic oxide which has been deposited onto a porous support wherein the pores of the multicomponent metallic oxide layer are subsequently filled or plugged with a metallic-based species. The inorganic membranes are formed by depositing a porous multicomponent metallic oxide layer onto the porous support to form a porous composite having a network of pores capable of transporting gases. The network of pores are plugged or filled by organometallic vapor infiltration to form an inorganic membrane having essentially no through porosity.

Inorganic membranes

Planar solid-state membrane modules for separating oxygen from an oxygen-containing gaseous mixture which provide improved pneumatic and structural integrity and ease of manifolding. The modules are formed from a plurality of planar membrane units, each membrane unit which comprises a channel-free porous support having connected through porosity which is in contact with a contiguous dense mixed conducting oxide layer having no connected through porosity. The dense mixed conducting oxide layer is placed in flow communication with the oxygen-containing gaseous mixture to be separated and the channel-free porous support of each membrane unit is placed in flow communication with one or more manifolds or conduits for discharging oxygen which has been separated from the oxygen-containing gaseous mixture by permeation through the dense mixed conducting oxide layer of each membrane unit and passage into the manifolds or conduits via the channel-free porous support of each membrane unit.

Planar solid-state membrane module

Tubular solid-state membrane modules for separating oxygen from an oxygen-containing gaseous mixture which provide improved pneumatic and structural integrity and ease of manifolding. The modules are formed from a plurality of tubular membrane units, each membrane unit which comprises a channel-free porous support having connected through porosity which is in contact with a contiguous dense mixed conducting oxide layer having no connected through porosity. The dense mixed conducting oxide layer is placed in flow communication with the oxygen-containing gaseous mixture to be separated and the channel-free porous support of each membrane unit is placed in flow communication with one or more manifolds or conduits for discharging oxygen which has been separated from the oxygen-containing gaseous mixture by permeation through the dense mixed conducting oxide layer of each membrane unit and passage into the manifolds or conduits via the channel-free porous support of each membrane unit.

Tubular solid-state membrane module

The present invention relates to surface catalyzed ion transport membranes which demonstrate superior oxygen flux. The membranes comprise a dense multicomponent metallic oxide layer having a first surface and a second surface wherein the first surface is coated with a catalyst such as a metal or an oxide of a metal selected from Groups II, V, VI, VII, VIII, IX, X, XI, XV and the F Block lanthanides of the Periodic Table of the Elements. One or more porous layers formed from a mixed conducting multicomponent metallic oxide or a material which is not mixed conducting under process operating conditions may be formed contiguous to the second surface of the dense layer. The claimed membranes are capable of separating oxygen from oxygen-containing gaseous mixtures.

Ion transport membranes with catalyzed dense layer

The present invention relates to surface catalyzed ion transport membranes which demonstrate superior oxygen flux. The membranes comprise a porous mixed conducting multicomponent metallic oxide layer having a first surface onto which a catalyst is deposited and a second surface which is contiguous with a dense mixed conducting multicomponent metallic oxide layer. Suitable catalysts to be deposited onto the porous mixed conducting layer include one or more metals or oxides of metals selected from Groups II, V, VI, VII, VIII, IX, X, XI, XV and the F Block lanthanides of the Periodic Table of the Elements. The claimed membranes are capable of separating oxygen from oxygen-containing gaseous mixtures.

Ion transport membranes with catalyzed mixed conducting porous layer

The present invention is a method for manufacturing inorganic membranes which are capable of separating oxygen from air. The membranes comprise a thin layer of a multicomponent metallic oxide which has been deposited onto a porous substrate by organometallic chemical vapor deposition. The inorganic membranes are formed by reacting organometallic complexes corresponding to each of the respective metals making up the multicomponent metallic oxide and an oxidizing agent under conditions sufficient to deposit a thin layer of the multicomponent metallic oxide onto the porous substrate.

Method for manufacturing inorganic membranes by organometallic chemical

A coated carbon body having improved resistance to high temperature oxidation and a method for producing the coated carbon body are described. The coated carbon body comprises a carbon body, an intermediate glass forming coating within said converted layer, and an outer refractory coating on the intermediate coating. The body has a converted porous layer formed by etching and reacting the body with gaseous boron oxide and the resulting converted layer contains interconnecting interstices and boron carbide formed by the reaction of the boron oxide and the carbon body. The method comprises contacting a carbon body with boron oxide at an elevated temperature sufficient to cause the reaction between the carbon body and boron oxide to form a converted porous layer which contains interconnecting interstices in the body and boron carbide and then applying the intermediate glass forming coating over the converted layer and an outer refractory coating over the intermediate coating.

Oxidation resistant carbon and method for making same

Growing community of inventors

Allentown, PA, United States of America

Paul N Dyer