Chemical looping combustion (CLC) is a promising alternative to the conventional combustion-based, fossil fuel conversion processes. In CLC, solid oxygen carrier used transfer from air carbonaceous fuel. This indirect route allows for effective CO2 capture because sequestrable stream of inherently produced without any need energy-intensive separation. From thermodynamic point view, CuO arguably...

The attrition behaviour of several promising oxygen carriers tested in Chemical Looping Combustion (CLC) units has been evaluated using an air-jet apparatus based on ASTM D5757 at 20 and 800 °C. Results were to determine a general testing procedure that allows estimating the adequacy working temperature potential carrier. For both fresh used carriers, was lower when Air Jet Index (AJI) test inc...

Chemical looping combustion (CLC) of biomass is a promising technology for power generation with integrated carbon capture. In CLC, alkali content poses potential issues bed agglomeration, as well heat exchanger fouling and corrosion. The fate alkalis was investigated in dual-interconnected circulating fluidized CLC system. Experiments were conducted oxygen carrier aided (OCAC) modes. Ilmenite ...

As global power generation is currently relying on fossil fuel-based plants, more anthropogenic CO2 being released into the atmosphere. During transition period to alternative energy sources, carbon capture and storage seems be a promising solution. Chemical-looping combustion (CLC) an conversion technology designed for of fuel with advantageous capabilities. In this work, 1D computational flui...

Unconverted fuel gases are normally present in the gas leaving reactor of a Chemical Looping Combustion (CLC) process. Depending on several factors, including oxygen carrier and volatiles content, unconverted represent 5–30% needed for full combustion. Further conversion these components is imperative to achieve adequate combustion fulfill requirements CO2 storage. An oxy-polishing step using h...

Solid circulation in chemical looping combustion (CLC) is very important and affects the mass heat balance autothermal operation of a CLC system. A key task developing technology to control solid circulation. In this work, characteristic 1.5 MWₜₕ cold flow model reported. The between fuel reactor simplified air riser controlled by overflow method. Three kinds quartz sands are selected as fluidi...

This work presents a simulation study on both energy and economics of power generation plants with inherent CO2 capture based on chemical looping combustion technologies. Combustion systems considered include a conventional chemical looping system and two extended three-reactor alternatives (exCLC and CLC3) for simultaneous hydrogen production. The power generation cycles include a combined cyc...

This paper presents the modeling and simulation of an industrial-scale chemical looping combustion (CLC) power plant, including all process units (reactors, flue gas treatment units, heat integration, steam cycle, CO2 compression train). A model a 525 MWth CLC plant was built using rigorous representation solid fuel oxygen carrier. Petcoke considered main interest in this study, it is compared ...

One of the best low-cost approaches for capturing carbon dioxide from combustion solid fuels is chemical looping (CLC) technology, where processes fuel oxidation and extraction oxygen air are split in two separate reactors. In order to model petroleum coke (petcoke) conversion a CLC method, detailed knowledge about reactions pet-coke with O2, CO2, H2O at temperatures between 750 1100 °C require...