Progress in Ion Transport Membranes for Gas Separation Applications

Bose, Arun C.; Stiegel, Gary J.; Armstrong, Phillip A.; Halper, Barry J.; Foster, E.P.

doi:10.1007/978-0-387-34526-0_1

Cited by 25 publications

(30 citation statements)

References 6 publications

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“…The process is 100% selective to oxygen transport and creates very little pressure loss in the feed air stream. This enables compact low-cost devices that will bring economic and environmental benefits [2,4]. drives oxygen ions from the high partial pressure side to the low partial pressure side.…”

Section: Introductionmentioning

confidence: 99%

“…Oxygen transport membranes are nonporous, mixed ion, and electron-conducting materials typically operating at 800-900 °C; oxygen production using the OTM has been under development by Air Products with U.S. Department of Energy (DOE) support for the past ten years [2]. The process is 100% selective to oxygen transport and creates very little pressure loss in the feed air stream.…”

Section: Introductionmentioning

confidence: 99%

“…The market for high oxygen consumption facilities, such as gasification-based power plants, the metallurgical industry, petroleum recovery, and refining and chemical synthesis, is totally covered by cryogenic ASUs, leaving PSAs and VSAs to the small and medium scale facilities. An advancement in air separation technologies has recently been proposed by major chemical industries and is based on oxygen transport membranes [2,4].…”

Section: Introductionmentioning

confidence: 99%

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Oxygen Transport Membranes for Ultra-Supercritical (USC) Power Plants With Very Low CO2 Emissions

Gambini¹,

Vellini

2012

Journal of Engineering for Gas Turbines and Power

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Coal combustion for electric power generation is one of the major contributors to anthropogenic CO2 emissions to the atmosphere. Carbon capture and storage (CCS) technologies are currently intensively investigated in order to mitigate CO2 emissions. The technique which is currently the most pursued is post combustion scrubbing of the flue gas, due to the potential to retrofit post combustion capture to existing power plants. However, it also comes with a substantial energy penalty. To reduce the energy demand of CO2 processing, the so-called oxyfuel technology presents an option to increase the concentration of CO2 in the flue gas. Here, the coal is burned in a mixture of oxygen and recycled flue gas. Hence, the flue gas primarily consists of CO2 and water vapor, which can be easily condensed. In general, there are two different techniques for oxygen production in oxyfuel power plants: cryogenic air separation (it is a method which can be easily implemented since it is already well established in industry) and a mixed metal oxide ceramic membrane (ITM or OTM) operating at high temperatures (it is a new process for O2 production, which is under development). In the last ten years, efforts in the efficient utilization of energy and reduction of emissions have indirectly stimulated research in mixed conducting membranes. In fact, the presently available cryogenic air separation process consumes a significant fraction of the generating plant's output and reduces its efficiency. Oxygen transport membrane (OTM) integration with an ultra-supercritical (USC) power plant is, indeed, considered a promising technology that will lead to economic and energy savings compared to the previous solution. In this paper, we discuss the actual potentialities and limits of OTM and their integration in USC power plants.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Oxygen Transport Membranes for Ultra-Supercritical (USC) Power Plants With Very Low CO2 Emissions

Gambini¹,

Vellini

2012

Journal of Engineering for Gas Turbines and Power

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“…Moreover, excessive fuel consumption will lead to increasing pollution and global warming. Therefore, discovering of an alternative energy source is very important and many researches have been done in this field [1]. In this scenario, solid oxide fuel cells (SOFCs), which are electrochemical devices that are able to directly convert chemical into electrical energy, are promising candidates.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Manufacturing Method of Half-Cell Fuel Cell Based on Solid Electrolyte with Hydrogen Ion Conductivity

Mirab¹

2012

IJEE

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Barium cerate-based perovskite oxides are protonic conductor candidates for intermediate temperature solid oxide fuel cells due to their high ionic conductivity and good sinterability. The aim of the present study is to fabricate a half-cell single-cell includes substrate, anode and electrolyte layers. The exact composition of BaZr 0.1 Ce 0.7 Y 0.2 O 3─δ (BZCY7) has been selected as a proton conducting electrolyte. The fabrication process of a dense electrolyte membrane on a NiO-BaZr 0.1 Ce 0.7 Y 0.2 O 3─δ (NiO-BZCY7) anode substrate has been studied by a copressing process after co-firing at 1400ºC. BZCY7 powders were synthesized by solid-state reaction method after calcinations at 1150ºC. A single phase was obtained at this low temperature. The phase composition of the resulting specimens was investigated using X-ray diffraction (XRD) analysis. Scanning electron microscope (SEM) was used to evaluate the features of the synthesized powders and also the condition of connected layers in half-cell.

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“…The practicalities for incorporating ceramic membrane materials into industrial processes are discussed in comprehensive reviews. 1,2 Recently, the molten oxide membrane (MOM) materials have been developed. 14,15 This MOM materials consist of solid grains and intergranular liquid channels.…”

mentioning

confidence: 99%

Oxygen Ion Transport in Molten Oxide Membranes for Air Separation and Energy Conversion

Климашин

Белоусов

2017

J. Electrochem. Soc.

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Molten oxide membranes (MOMs) are a new class of ion transport inorganic membranes which demonstrate superior oxygen selectivity and permeability and could be used in electrochemical devices such as molten oxide fuel cells (MOFCs) and oxygen separators for energy conversion and air separation, respectively [Acc. Chem. Res., 50, 273 (2017)]. However, oxygen ion transport mechanisms in MOM materials are not clear enough. Understanding the oxygen ion transport mechanisms in molten oxides is important for the discovery of new MOM materials with enhanced performances that can enable the operation of the electrochemical devices more efficiently. Here we suggest an approach that adapts a dynamic polymer chain model, developed for specific molten oxides, to a wide range of melts. This generic model can evaluate the oxygen permeation fluxes through different MOM materials that are comparable to experimental data. The study of ion transport membrane (ITM) materials and processes is a rapidly expanding research interest field. This is due to the fact that the ITM-based technology modules have the potential to improve the efficiency and environmental performances of energy generation systems.1,2 ITM can separate high purity oxygen from air at elevated temperatures and have the potential to reduce the cost of oxygen production in comparison with the conventional cryogenic process.3 The mixed-conducting perovskite-type compounds, 4,5 ceramic composites, 6-9 and cermets 10-13 are used as ITM materials. The practicalities for incorporating ceramic membrane materials into industrial processes are discussed in comprehensive reviews. 1,2Recently, the molten oxide membrane (MOM) materials have been developed. 14,15 This MOM materials consist of solid grains and intergranular liquid channels. The intergranular liquid channels provide the membrane material high ionic conductivity, gas tightness, and ductility. This last property allows us to deal successfully with the problem of thermal incompatibility (difference in coefficient of thermal expansion, CTE).There 14,15 Transport properties (electrical conductivity, oxygen ion transport number, and oxygen and nitrogen permeation fluxes) of these MOM materials have been measured. [16][17][18][19][20] These membrane materials showed high oxygen selectivity and permeability. The ease of the MOM materials fabrication, combined with competitive oxygen permeability and superior oxygen selectivity, demonstrates a promising application.Understanding the oxygen ion transport mechanisms in molten oxides is important for the discovery of new MOM materials that can enable the oxygen separation and energy conversion more efficiently. Recently, a dynamic polymer chain model for oxygen ion transport in molten V 2 O 5 has been developed. [21][22][23] In this paper, we suggest an approach that adapts the dynamic polymer chain model to a wide range of melts. This generic model can predict the gas permeation fluxes through molten oxide 14,15 and carbonate [24][25][26][27][28][29] membrane materials that a...

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Progress in Ion Transport Membranes for Gas Separation Applications

Cited by 25 publications

References 6 publications

Oxygen Transport Membranes for Ultra-Supercritical (USC) Power Plants With Very Low CO2 Emissions

Oxygen Transport Membranes for Ultra-Supercritical (USC) Power Plants With Very Low CO2 Emissions

Optimizing the Manufacturing Method of Half-Cell Fuel Cell Based on Solid Electrolyte with Hydrogen Ion Conductivity

Oxygen Ion Transport in Molten Oxide Membranes for Air Separation and Energy Conversion

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