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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Energy Technologies
Presentation Title In-situ Microscopic Study of Morphology Changes in Natural Hematite and Cu-spinel Particles during Cyclic Redox Gas Exposures for Chemical Looping Applications
Author(s) Anna Nakano, Jinichiro Nakano, James Bennett
On-Site Speaker (Planned) Anna Nakano
Abstract Scope Efficiency of the chemical looping combustion technology is adversely influenced by degradation of oxygen carrier materials during oxidation-reduction process changes at elevated temperatures. In this work, natural hematite (Fe2O3) and alumina (Al2O3) supported Cu-spinel (CuFe2O4) oxygen carrier particles were isothermally exposed to redox gas cycles (air and 10 vol.% CO-90 vol.% Ar) at approximately 800 °C and studied using a high temperature confocal scanning laser microscope for real time alterations in surface morphology, roughness, and particle volume. 3D topological scans from each cyclic gas exposure indicated hematite particles exhibited noticeable volume expansion in reduction and shrinkage in oxidation, corresponding to respective phase transformations. Materials degradation during the redox gas cycles is discussed.
Proceedings Inclusion? Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Absorption of Atmospheric CO2 Using Banana Peel Waste
Advanced Composite Materials for Passive Thermal Management of Electronics
Applications of Engineered Materials for Geothermal Resource Utilization
Continuous Optimization of the Energy Input – The Success Story of AOS
D-22: AC Analysis of Impedancemetric, Electrochemical NOx Sensors for Emission Control
D-23: Effect of Granularity on Pretreatment of Coke with Microwave Irradiation
D-24: Effect of Microwave and Ultrasonic Coupling Treatment on Granularity and Microstructure of Pulverized Coal
D-25: Influence of Sodium on Coke Microstructure in Different Reaction Atmosphere
D-26: The Energy Efficiency Studies Of Aluminium Electrolysis Cells
Development of a Fluidized-Bed Ash Agglomeration Modeling Methodology to Include Particle-Level Heterogeneities in Ash Chemistry and Granular Physics
Disordered 3D Multi-layer Graphene Anode Material from CO2 for Sodium-Ion Batteries
Energy Recovery of Livestock Waste in Taiwan
Energy Savings through Thermally-efficient Crucible Technology: Fundamentals, Process Modeling, and Applications
Experimental Study on Electro-spraying of Ethanol Based on PDA Measurement
Graphene-like Ultrathin 2D Metal Oxide Nanosheets for Sustainable Applications
High-efficiency Natural-gas Generators for Residential Combined Heat and Power
High Efficiency Thermoelectric Materials (skutterudites, half Heusler alloys and clathrates) and Their Mechanical Properties
In-situ Microscopic Study of Morphology Changes in Natural Hematite and Cu-spinel Particles during Cyclic Redox Gas Exposures for Chemical Looping Applications
Interrogating Nanoscale Defects to Enable Cost-Effective Solar Energy Conversion
Large Scale Energy Storage through Heat Balance Shifts at Aluminium Smelters
Leaching of Sb from TROF Furnace Doré Slag
Life Cycle Assessments of Incineration Treatment for Sharp Medical Waste
Modeling Anthropogenic Heat Flux in Climate Models
National Laboratory-led Collaborations for Accelerating Hydrogen Storage Materials Development
Potential CO2 Emission Reduction and H2 Production Using Industrial Slag Wastes Originating from Different Industrial Sectors
Power Generation Using Combined In-situ Combustion with CO2 Separation and Sequestration
The Thermodynamics of Slag Forming Inorganic Phases in Biomass Combustion Processes
Thermal Transport in High ZT Bulk Silicon Thermoelectric Materials
Thermodynamic Stability of Condensed Phases in the Ternary System CaO-Cu-O by the EMF Method
Transforming the Way Electricity is Consumed during the Aluminium Smelting Process
Valuable Metals and Energy Recovery from Electronic Waste Streams
{Ti,Zr}NiSn - based High ZT Spinodal Thermoelectrics

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