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Annual Report 2014
14
Summary of achievements
The CO
2
Capture Sub-Programme has achieved
the followings:
• New class of precipitating absorbents with
good absorption rates, easily dissolved pre-
cipitate and fast CO
2
desorption rate have
been identified. A more simplified process for
precipitating system for CO
2
capture has been
proposed based on the properties of the new
precipitating system. This process have possi-
bilities to utilize waste heat in plants for sol-
vent regeneration. Further this process offers
possibility for higher pressure CO
2
recovery.
• Dynamic test campaign was completed in the
Gløshaugen pilot plant. Dynamic model that
can be implemented in various solvent based
capture pilots has been developed. The dy-
namic model was implemented to represent
the test result from Gløshaugen pilot plants
and also a dynamic model for Tiller pilot plant
was implemented.
• The long-term flux performance of symmetric
hydrogen pre-combustionmembranes has been
tested up to 1500 hours in H
2
and CO
2
contain-
ing atmospheres at 1000C, and the degradation
phenomena have been elucidated by post-char-
acterization of the membrane material.
• A new, analytic mean flame shape model, that
considerably improves present state-of-the-
art approaches for prediction of flashback in
ducts, is developed and validated versus Direct
Numerical Simulation datasets.
• The technology based on flameless com-
bustion (FLOX®) has been experimentally
demonstrated in high pressure conditions
at DLR and shown to be a good candidate to
achieve Exhaust Gas Recirculation in the flue
gas to be treated in post-combustion capture,
while avoiding combustion stability issues.
• A swirl stabilized burner for semi-closed
oxy-fuel gas turbine application has been tested
under pressure for the first time in the HIPROX
facility. This burner will be used in the demon-
stration oxy-fuel plant to be built through EC-
CSEL infrastructure funding from RCN.
• The 150 kWCLC rig has been installed at Tiller,
and first non-reacting operation has been per-
formed.
• Continuous operation of the 3 kW CLC attri-
tion test rig in Oslo for more than 100 hours
has been achieved, and four new batches of ox-
ygen carriers for CLC has been produced and
tested.
• A new dolomite based material for carbon-
ate looping processes has been found to yield
higher cyclic capacity and less deactivation
than regular dolomite.
• Investigation of the IGCC process with Distri-
buted Fuel Injection (DFI), proves that there is a
potential for efficiency improvement in addition
to resolving the challenges with H
2
combustion.
• Evaluation of an amine-based Novel Generic
Solvent (NGS) to establish an additional bench-
mark for post-combustion CO
2
capture from
Natural Gas Combined Cycles (NGCC) and to
illustrate how adding improvements for amine
capture (new solvent, reduced temperture dif-
ference in reboiler, Exhaust Gas Recirculation)
can yeald a significant reduction in capture
penalty.
• Improvement of a heat- and mass balance
model for Chemical Looping Combustion, sub-
sequently applied for an evaluation of steam
generation in refineries.
Oxy-fuel burner in operation.
(Photo: SINTEF)