Kwangsu Park
Department of and Process Technology, University College of Southeast Norway, Norway
Lars Erik Øi
Department of and Process Technology, University College of Southeast Norway, Norway
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http://dx.doi.org/10.3384/ecp17138292Published in: Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th – 27th, 2017
Linköping Electronic Conference Proceedings 138:39, p. 292-297
Published: 2017-09-27
ISBN: 978-91-7685-417-4
ISSN: 1650-3686 (print), 1650-3740 (online)
For a traditional amine-based CO2 capture system, the
absorber column accounts for a significant part of the
overall capital- and operating cost. One important
design factor of absorber columns is the gas velocity
through the absorber packing. Higher gas velocity leads
to higher energy cost due to increased pressure drop, but
at the same time lower packing cost due to increased
effective interfacial area. By utilizing available
correlations in the new version 9.0 of the simulation
program Aspen HYSYS, the cost optimum gas velocity
can be determined. This work evaluated six types of
structured packings: Mellapak 250X, 250Y, 2X, 2Y,
Mellapak Plus 252Y and Flexipac 2Y. The simulation
results show that for all the packings, the cost-optimum
gas velocity is in the range of 2.0 to 2.5 m/s giving a
pressure drop through the absorber in the range of 10 to
15 mbar.
