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Annual Report 2014
15
Chemical Looping
Combustion (CLC) is a
rather new and novel CO
2
capture technology close-
ly combining materials,
reactor and combustion
science.
Øyvind Langørgen
Highlights
(This text was first presented on the #SINTEFenergy-blog)
:
http://blog.sintefenergy.com/enChemical Looping Combustion test rig at Tiller
In order to limit climate changes we need to cut CO
2
emissions.
The burning of fossil fuels for electricity and heat production is
still the largest source of global CO
2
emissions. Capturing the CO
2
emissions from these processes will be important in order to reach
the needed CO
2
reduction. Chemical Looping Combustion (CLC) is
a rather new and novel CO
2
capture technology closely combining
materials, reactor and combustion science. In BIGCCS we are doing
research and development on this in order to bring CLC forward.
CLC belongs to the oxy-combustion route for CO
2
capture. Fuel is
burnt only with oxygen and not with air which is the normal when
burning a fuel (e.g. as in your car engine, wood stove, gas burner
etc.). The main benefit is that it produces an exhaust gas which con-
sists mainly of CO
2
and water vapour since no nitrogen is involved
as would be the case with normal combustion in air. This makes the
CO
2
separation easy by just condensing out the water vapour.
Wen Xing sealing ceramic hydrogen transport
membrane for flux testing at high temperature.
(Photo: SINTEF/Werner Juvik)
Yngve Larring at 3 kW CLC attrition test rig in
Oslo.
(Photo: SINTEF/Werner Juvik)
• Development of a process concept for stand-
alone H
2
production from coal with CO
2
cap-
ture, combining Pd-alloy membranes and
low-temperature capture of CO
2
. The concep-
tual process has a H
2
recovery of ~75% while
producing the power required for low-tem-
perature capture of CO
2
as well as H
2
liquefac-
tion.