Advances in CO2 capture technology—The U.S. Department of Energy's Carbon Sequestration Program ☆

http://digital.csic.es/bitstream/10261/78793/1/Progress%20in%20chemical-looping%20combustion%20and%20ref....2012.pdf

Progress in chemical-looping combustion and reforming technologies

In recent years, Carbon Capture and Storage (Sequestration) (CCS) has been proposed as a potential method to allow the continued use of fossil-fuelled power stations whilst preventing emissions of CO2 from reaching the atmosphere. Gas, coal (and biomass)-fired power stations can respond to changes in demand more readily than many other sources of electricity production, hence the importance of retaining them as an option in the energy mix. Here, we review the leading CO2 capture technologies, available in the short and long term, and their technological maturity, before discussing CO2 transport and storage. Current pilot plants and demonstrations are highlighted, as is the importance of optimising the CCS system as a whole. Other topics briefly discussed include the viability of both the capture of CO2 from the air and CO2 reutilisation as climate change mitigation strategies. Finally, we discuss the economic and legal aspects of CCS.

Carbon capture and storage update

Chemical-looping combustion (CLC) for inherent CO2 separations—a review

Chemical-looping with oxygen uncoupling for combustion of solid fuels

http://digital.csic.es/bitstream/10261/78281/1/Mapping%20of%20the%20range%20of%20operational.....pdf

Mapping of the range of operational conditions for Cu-, Fe-, and Ni-based oxygen carriers in chemical-looping combustion

Chemical looping combustion (CLC) currently is an attractive option to decrease the greenhouse gas emissions that affect global warming, because it is a combustion process with inherent CO2 separation and with low energy losses. The CLC concept is based on the transfer of oxygen from the combustion air to fuel by means of an oxygen carrier in the form of a metal oxide. The system consists of two separate but interconnected reactors, normally fluidized-bed type. In the fuel reactor, the oxygen carrier particles react with fuel and generate a gas stream mainly composed of CO2 and H2O. The reduced metal oxide is later transported to the air reactor, where oxygen from the air is transferred to the particles; in this way, one can obtain the original metal oxide ready to be returned to the fuel reactor for a new cycle. In this work, a 10 kWth pilot plant that is composed of two interconnected bubbling fluidized-bed reactors has been designed and built to demonstrate the CLC technology. The prototype was operate...

/pdf/chemical-looping-combustion-in-a-10-kwth-prototype-using-a-19tkvzo2ln.pdf

Chemical Looping Combustion in a 10 kWth Prototype Using a CuO/Al2O3 Oxygen Carrier: Effect of Operating Conditions on Methane Combustion

http://digital.csic.es/bitstream/10261/78250/1/Operation%20of%20a%2010%20kWth%20Chemical-Looping.......pdf

Operation of a 10 kWth chemical-looping combustor during 200 h with a CuO-Al2O3 oxygen carrier

Chemical-looping combustion (CLC) is a combustion technology with inherent separation of the greenhouse gas CO2 that involves the use of an oxygen carrier, which transfers oxygen from air to the fu...

/pdf/impregnated-cuo-al2o3-oxygen-carriers-for-chemical-looping-1o7uln21ms.pdf

Impregnated CuO/Al2O3 Oxygen Carriers for Chemical-Looping Combustion: Avoiding Fluidized Bed Agglomeration

Ni-based oxygen carriers allow working at high temperatures (900−1100 °C) in a chemical-looping combustion (CLC) process with full CH4 conversion, although thermodynamic restrictions result in the ...

/pdf/nickel-copper-oxygen-carriers-to-reach-zero-co-and-h2-2why2ju03u.pdf

Javier Celaya

Papers

Mapping of the range of operational conditions for Cu-, Fe-, and Ni-based oxygen carriers in chemical-looping combustion

Chemical Looping Combustion in a 10 kWth Prototype Using a CuO/Al2O3 Oxygen Carrier: Effect of Operating Conditions on Methane Combustion

Operation of a 10 kWth chemical-looping combustor during 200 h with a CuO-Al2O3 oxygen carrier

Impregnated CuO/Al2O3 Oxygen Carriers for Chemical-Looping Combustion: Avoiding Fluidized Bed Agglomeration

Nickel−Copper Oxygen Carriers To Reach Zero CO and H2 Emissions in Chemical-Looping Combustion