Chemical-Looping Combustion (CLC) is a two-step combustion process that produces a pure CO2 stream, ready for compression and sequestration. A CLC system is composed by two reactors, an air and a fuel reactor, and an oxygen carrier circulating between the reactors, which transfers the oxygen necessary for the fuel combustion from the air to the fuel. This system can be designed similar to a cir...

In gas and petroleum industry, the waste gas stream from the sweetening process of a sour natural gas stream is commonly referred as acid gas. Chemical Looping Combustion (CLC) technology has the potential to exploit the combustible fraction of acid gas, H2S, to produce energy obtaining a flue gas highly concentrated on CO2 and SO2, which can be cost-effectively separated for subsequent applica...

Heterogeneous chemical looping combustion (CLC) reactions and conjugate transports in large oxygen carrier particles were numerically investigated with computational fluid dynamics (CFD) approaches, which a simplified noncatalytic reaction model was implemented for reducing intraparticle modelling computation. Volumic gas-solid treated as surface based on the equivalent internal particle model....

Chemical looping combustion (CLC) is a technology allowing CO2 capture at low cost. The development of durable oxygen carrier materials key factor for the scale-up CLC. Once promising has been identified dedicated studies into effects reaction conditions on durability these kinds are required in order to improve their reliability before use industrial scale. This method requires several long-te...

Chemical-Looping Combustion (CLC) of biofuels is a promising technology for cost-efficient CO2 separation and can lead to negative emissions when combined with carbon capture storage. A potential challenge in developing CLC the effects alkali metal-containing compounds released during fuel conversion. This study investigates interactions between an oxygen carrier (OC), CaMn0.775Ti0.125Mg0.1O3-?...

• Validation of optimum operating conditions for a Cu-based oxygen carrier. Very low air excess may be used in chemical looping combustion. Complete CH 4 conversion is achieved. Negligible copper loss due to migration the surface particles. Excellent mechanical performance Chemical combustion (CLC) allows fuel with inherent CO 2 capture by using an carrier transfer from fuel. Previously CLC sca...

The Power Sector is undergoing a rapid technological change with respect to implementation of low carbon technologies. IEA Energy Outlook 2017 shows that the investments in Renewables for first time are equal those on fossil sources. It likely conventional gas turbines and internal combustion engines will need be integrated systems employing biofuels and/or CCUS (Carbon Capture Usage Storage). ...