General Electric Company

Vidya Ramaswamy

Anthony Yu-Chung Ku

James Anthony Ruud

Mohan Manoharan

Seth Thomas Taylor

Melissa Suzanne Sander

William Hullinger Huber

Milivoj Konstantin Brun

Wei Wei

Don Mark Lipkin

Krishan Lal Luthra

Ke Liu

Jody Alan Fronheiser

Reed Roeder Corderman

Peter Joel Meschter

Geoffrey Mark Eadon

Bastiaan Arie Korevaar

Michael John Bowman

Loucas Tsakalakos

Yan Gao

Patrick Roland Lucien Malenfant

Patrick Daniel Willson

Louis Andrew Schick

Hongbo Cao

Jennifer Lynn Molaison

Joleyn Eileen Balch

Fred Sharifi

Vijay Kumar Srivastava

Nathaniel Patrick Brown

Kalya Vijaya Sarathy

A coated component may have a consumable coating that protects the component from dust. A coated component may include a silicon containing substrate defining a substrate surface, a barrier coating on the substrate surface, with the barrier coating defining a barrier surface, and a consumable coating on the barrier surface. The consumable coating may include a ceramic oxide that includes a silicate. A component, such as a component of a turbomachine, may be protected from dust by applying a consumable coating on the component.

Consumable coatings and methods of protecting a high temperature component from dust deposits

A porous membrane structure is disclosed, which includes a porous substrate, a mesoporous, aluminum oxide layer disposed on the substrate; and a relatively thin, continuous, microporous barrier layer disposed on the mesoporous aluminum oxide layer, also formed from aluminum oxide. The membrane is capable of improving hydrogen selectivity within a gas stream, e.g., a synthesis gas composition. Membrane supports containing these structures are also described, as well as gas separation modules, and related processes. Power plants which incorporate the gas separation modules are also disclosed herein.

Membranes suitable for gas separation, and related articles and processes

A membrane structure is provided. The membrane structure includes a polymer layer having a plurality of pores; and a ceramic layer disposed on the polymer layer. The ceramic layer has a plurality of substantially unconnected pores. Each of the substantially unconnected pores is in fluid communication with at least one of the pores of the polymer layer. A method of manufacturing a membrane structure is provided. The method includes the steps of providing a polymer layer having a plurality of pores; and disposing a ceramic layer on the polymer layer. Disposing a ceramic layer includes depositing a metal layer on the polymer layer; and anodizing the metal layer to convert the metal layer into a porous layer. At least one of the depositing step and the anodizing step is performed as a continuous process. Alternatively, at least one of the depositing and the anodizing step is performed as a batch process.

Membrane structure and method of making

A membrane structure is provided. The membrane structure includes a first layer having a plurality of interconnected pores; and a second layer disposed on the first layer. The second layer has a plurality of unconnected pores. Each of the unconnected pores is in fluid communication with at least one of the interconnected pores of the first layer. A method of making a membrane structure is provided. The method includes the steps of providing a first layer having a plurality of interconnected pores; and disposing a second layer on the first layer. Disposing a second layer includes depositing a conducting layer on the first layer; and anodizing the conducting layer to convert the conducting layer into a porous layer.

An apparatus for separating at least one component from a mixture of a plurality of chemical species is provided. The apparatus comprises a membrane structure comprising a plurality of pores disposed within a matrix material to allow mass transport from a first surface of the membrane structure to a second surface of the membrane structure. The matrix material has a thermal conductivity of at least about 10 W/m/K; and a functional material disposed within at least a portion of the plurality of pores. The functional material has the property of promoting selective transport of at least one species through the membrane structure from the first surface to the second surface.

Gas separator apparatus

A membrane structure is provided. The membrane structure includes a first layer having a plurality of pores; and a second layer disposed on the first layer. The second layer has a plurality of unconnected pores. At least a portion of the plurality of unconnected pores of the second layer is at least partially filled with a filler such that the first layer is substantially free of the filler. At least a portion of the plurality of unconnected pores of the second layer is in fluid communication with at least one of the pores of the first layer. A method of making a membrane structure is provided. The method includes the steps of providing a first layer having a plurality of interconnected pores; disposing a second layer on the first layer, and filling at least a portion of the unconnected pores of the second layer with a filler such that the first layer is substantially free of the filler. Disposing a second layer includes depositing a metal layer on the first layer; and anodizing the metal layer to convert the metal layer into porous oxide layer.

Methods for separating carbon dioxide from a fluid stream at a temperature higher than about 200&#xb0; C. with selectivity higher than Knudsen diffusion selectivity include contacting a porous membrane with the fluid stream to preferentially transport carbon dioxide. The porous membrane includes a porous support and a continuous porous separation layer disposed on a surface of the porous support and extending between the fluid stream and the porous support layer. The porous support comprises alumina, silica, zirconia, stabilized zirconia, stainless steel, titanium, nickel-based alloys, aluminum-based alloys, zirconium-based alloys or a combination thereof. Median pore size of the porous separation layer is less than about 10 nm, and the porous separation layer comprises titania, MgO, CaO, SrO, BaO, LaO, CeO, HfO, YO, VO, NbO, TaO, ATiO, AZrO, AAlO, AFeO, AMnO, ACoO, ANiO, AHfO, ACeO, LiZrO, LiSiO, LiTiO, LiHfO, ANO, YNO, LaNO, HfNO, or a combination thereof;

Membranes for separation of carbon dioxide

A method for forming an array of elongated nanostructures, includes in one embodiment, providing a substrate, providing a template having a plurality of pores on the substrate, and removing portions of the substrate under the plurality of pores of the template to form a plurality of cavities. A catalyst is provided in the plurality of cavities in the substrate, and the pores of the template are widened to expose the substrate around the catalyst so that the catalyst is spaced from the sides of the plurality of pores of the template. A plurality of elongated nanostructures is grown from the catalyst spaced from the sides of the pores of the template.

Nanostructure arrays and methods for forming same

A membrane structure is provided. The membrane structure includes a first layer having a plurality of pores; and a second layer disposed on, the first layer. The second layer has a plurality of unconnected pores. At least a portion of the plurality of unconnected pores of the second layer is at least partially filled with a filler such that the first layer is substantially free of the filler. At least a portion of the plurality of unconnected pores of the second layer is in fluid communication with at least one of the pores of the first layer. A method of making a membrane structure is provided. The method includes the steps of providing a first layer having a plurality of interconnected pores; disposing a second layer on the first layer, and filling at least a portion of the unconnected pores of the second layer with a filler such that the first layer is substantially free of the filler. Disposing a second layer includes depositing a metal layer on the first layer; and anodizing the metal layer to convert the metal layer into porous oxide layer.

An apparatus for producing hydrogen gas wherein the apparatus includes a reactor. In one embodiment, the reactor includes at least two conversion-removal portions. Each conversion-removal portion comprises a catalyst section configured to convert CO in the stream to COand a membrane section located downstream of and in flow communication with the catalyst section. The membrane section is configured to selectively remove the COfrom the stream and to be in flow communication with a sweep gas.

Methods and apparatus for carbon dioxide removal from a fluid stream

A porous membrane for separation of carbon dioxide from a fluid stream at a temperature higher than about 200&#xb0; C. with selectivity higher than Knudsen diffusion selectivity. The porous membrane comprises a porous support layer comprising alumina, silica, zirconia or stabilized zirconia; a porous separation layer comprising alumina, silica, zirconia or stabilized zirconia, and a functional layer comprising a ceramic oxide contactable with the fluid stream to preferentially transport carbon dioxide. In particular, the functional layer may be MgO, CaO, SrO, BaO, LaO, CeO, ATiO, AZrO, AAlO, AFeO, AMnO, ACoO, ANiO, AHfO, ACeO, LiZrO, LiSiO, LiTiOor a mixture thereof;

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Niskayuna, NY, United States of America

Vidya Ramaswamy