A5064442573- Chemical Looping and Thermochemical Processes
- Nuclear Materials and Properties
- Industrial Gas Emission Control
- Advancements in Solid Oxide Fuel Cells
- Carbon Dioxide Capture Technologies
- Thermal and Kinetic Analysis
- Taxation and Legal Issues
- Oil, Gas, and Environmental Issues
- Catalytic Processes in Materials Science
- Energy Efficiency and Management
- Coal and Its By-products
- Labor Movements and Unions
- Labour Market and Migration
Chalmers University of Technology
2011-2015
Spray dried particles of the perovskite material CaMn0.9Mg0.1O3−δ have been examined as oxygen carrier for chemical-looping combustion natural gas. The experiments conducted in a continuously operating reactor with nominal size 10 kWth. showed excellent ability to convert fuel, and complete was reached at certain conditions. In general, CO2 yield increased fuel temperature circulation rate. able release gaseous through so-called CLOU-mechanism (chemical looping uncoupling). When fluidized by...
In chemical looping combustion with solid fuels, the oxygen-carrier lifetime is expected to be shorter than gaseous fuels. Therefore, it particularly important use low-cost oxygen carriers in fuel applications. Apart from being cheap, these should able convert CO and H<sub>2<sub/> produced gasification sufficiently hard withstand fragmentation. Several iron-based materials displayed high conversion of syngas mechanical strength can used for further development technology. These include oxide...
Carbon capture and storage (CCS) can be used to mitigate climate change. Chemical-looping combustion (CLC) is an innovative carbon-capture technology with potential drastically reduce the cost. In CLC, oxygen transported from air fuel by means of metal-oxide particles, called carrier. This work presents findings a 100 kW CLC reactor system, which designed as interconnected fluidized beds. The unit was operated ilmenite Swedish wood char Mexican petcoke, both having low volatile content, were...
Chemical-looping with oxygen uncoupling (CLOU) is an innovative method to oxidize fuels inherent CO2 sequestration, which utilizes a solid oxygen-carrier material provide O2 for fuel combustion. In this study, range of CuO-based particles have been manufactured and examined. Out 24 samples prepared, 10 were examined in batch fluidized-bed reactor, three selected further examination by continuous operation small circulating reactor system. Composite consisting CuO as active phase support such...
Three materials of perovskite structure,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M2"><mml:mrow><mml:msub><mml:mrow><mml:mtext>CaMn</mml:mtext></mml:mrow><mml:mrow><mml:mi>1−x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mtext>M</mml:mtext><mml:mi>x</mml:mi></mml:msub><mml:msub><mml:mtext>O</mml:mtext><mml:mrow><mml:mi>3−</mml:mi><mml:mi>δ</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>(M = Mg or and Ti), have been examined as oxygen carriers in continuous operation...
The manganese based ilmenite analogue pyrophanite (MnTiO3) and six other combined (Fe1-xMnx)TiyO3 oxides have been examined as oxygen-carrier materials for chemical-looping combustion (CLC) with oxygen uncoupling (CLOU). Particles different compositions were manufactured by spray drying studied consecutive reduction oxidation at 850-1050 °C in a batch fluidized-bed reactor using CH4 fuel. A fuel conversion of 80-99% could be achieved most materials, formulations being favored temperature...
Chemical-looping combustion is a carbon capture technology which has received increased attention during the last years. The based on fuel oxidation with oxygen provided by solid carrier particles. In this study two such materials have been examined in continuously circulating chemical-looping reactor system designed for thermal power of 300 W. consisted manganese and silica oxides, an addition titania one them. particles were produced spray drying, followed calcination sintering. Both...