Chameera Jayarathna
Telemark University College, Faculty of Technology, Porsgrunn, Norway / Tel-Tek, Research Institute, Porsgrunn, Norway
Anette Mathisen
Tel-Tek, Research Institute, Porsgrunn, Norway
Lars Erik Øi
Telemark University College, Faculty of Technology, Porsgrunn, Norway
Lars-Andre Tokheim
Telemark University College, Faculty of Technology, Porsgrunn, Norway
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http://dx.doi.org/10.3384/ecp1511971Ingår i: Proceedings of the 56th Conference on Simulation and Modelling (SIMS 56), October, 7-9, 2015, Linköping University, Sweden
Linköping Electronic Conference Proceedings 119:7, s. 71-80
Publicerad: 2015-11-25
ISBN: 978-91-7685-900-1
ISSN: 1650-3686 (tryckt), 1650-3740 (online)
In calcium looping (CL), calcium oxide (CaO) is used as a sorbent for carbon dioxide (CO2). The CO2 reacts with CaO to produce calcium carbonate (CaCO3) in a carbonator operating at about 650 °C. The CaCO3 is then sent to another reactor, a calciner operating at about 900 °C, where the CaCO3 is calcined, producing CaO (which is returned to the carbonator for another cycle) and more or less pure CO2, which is removed from the system.
The calcination is an endothermic process, so a significant flow of thermal energy must be supplied to the calciner for the reaction to occur. In conventional CL the heat is transferred directly by oxy-combustion in the calciner; pure oxygen is required as the oxidizer to avoid mixing CO2 with nitrogen. Even though most of the thermal energy supplied in the calciner can be recuperated in the carbonator, the oxy-combustion gives an unwanted energy penalty of the CL technology.
However, if the heat could be transferred indirectly to the calciner, then then energy penalty associated with oxy-combustion could be avoided, and this would make CL a much more attractive alternative for the thermal power industry. The low energy penalty of CL with indirect calciner heat transfer is due to high-temperature integration between the CO2 capture plant and the power plant.
In this work, Aspen Plus is used to simulate the CL process with indirect heat transfer. The results confirm that such a scheme could give an energy penalty lower than for example amine scrubbing or oxy-combustion.
Alstom. Fully Integrated Regenerative Carbonate Cycle (FIRCC), Pre-study description. Alstom, 2012.
Aspen Technology. Aspen Physical Property System. Aspen Technology Inc., MA, USA, 2008.
R. Baciocchi, G. Costa, A. Polettini and R. Pomi: Influence of particle size on the carbonation of stainless steel slag for CO2 storage. Energy Procedia, 1:4859-4866, 2009.
K.G. Bennaceur: CO2 capture and storage a key carbon abatement option [Online]. Paris: OECD/IEA, 2008. Available: http://www.sourceoecd.org/9789264041400.
M.H. Chang, C.M. Huang, W.H. Liu, W.C. Chen, J.Y. Cheng, W. Chen, T.W. WEN, S. Ouyang, C.H. Shen and H.W. HSU: Design and Experimental Investigation of Calcium Looping Process for 3-kWth and 1.9-MWth Facilities. Chemical Engineering & Technology, 36:1525-1532, 2013.
A.S.C. Choices. Environmental Effects of Increased Atmospheric Carbon Dioxide. The National Academies Press, 15, 2011.
CLIMIT. 226499 - Fully Integrated Regenerative Carbonate Cycle (FIRCC) - Pre study [Online]. Research Council of Norway, 2014. Available:
http://www.climit.no/en/projects/developmentproject/226499 [Accessed 26 May 2015].
H. Dieter, A.R. Bidwe, G. Varela-Duelli, A. Charitos, C. Hawthorne and G. Scheffknecht: Development of the calcium looping CO2 capture technology from lab to pilot scale at IFK, University of Stuttgart. Fuel, 127:23-37, 2014.
K.S. Hatzilyberis: Design of an indirect heat rotary kiln gasifier. Fuel Processing Technology, 92:2429-2454, 2011.
D. Hoeftberger and J. Karl. Self-Fluidization in an Indirectly Heated Calciner: Chemical Engineering& Technology, 36:1533-1538, 2013.
M. Junk, M. Reitz, J. Ströhle and B. Epple. Thermodynamic evaluation and cold flow model testing of an indirectly heated carbonate looping process. 2nd International Conference on Chemical Looping, Darmstadt, Germany, 2012.
M. Junk, M. Reitz, J. Ströhle and B. Epple: Thermodynamic Evaluation and Cold Flow Model Testing of an Indirectly Heated Carbonate Looping Process. Chemical Engineering & Technology, 36:1479-1487, 2013.
J. Kremer, A. Galloy, J. Ströhle and B. Epple: Continuous CO2 Capture in a 1-MWth Carbonate Looping Pilot Plant. Chemical Engineering& Technology, 36:1518-1524, 2013.
A. Lasheras, J. Ströhle, A. Galloy and B. Epple: Carbonate looping process simulation using a 1D fluidized bed model for the carbonator. International Journal of Greenhouse Gas Control, 5:686-693, 2011.
A.B. Robinson, N.E. Robinson and W. Soon: Environmental Effects of Increased Atmospheric Carbon Dioxide. Journal of American Physicians and Surgeons, 12:79-90, 2007.
T. Shimizu, T. Hirama, H. Hosada, K. Kitano, M. Inagaki and K. Tejima: A Twin Fluid-Bed Reactor for Removal of CO2 from Combustion Processes. Chemical Engineering Research and Design, 77:62-68, 1999.
J. Ströhle, M. Junk, J. Kremer, A. Galloy and B. Epple: Carbonate looping experiments in a 1 MWth pilot plant and model validation. Fuel, 127:13-22,
2014.
UNFCCC. Kyoto Protocol to the United Nations Framework Convention on Climate Change. Review of European Community & International Environmental Law, 7:214-217, 1998.
