(654e) Pilot Test and Simulation of An Advanced Amine Process for CO2 Capture
AIChE Annual Meeting
2013
2013 AIChE Annual Meeting
Topical Conference: CO2 Capture
Amine Scrubbing for CO2 Capture: Alternative Solvents
Thursday, November 7, 2013 - 2:10pm to 2:35pm
Pilot Test and Simulation of an
Advanced Amine Process for CO2 Capture
Xi Chen, Barath Baburao, Frederic
Vitse*
Alstom Power, 1409 Centerpoint
Blvd, Knoxville, TN 37932
An Advanced Amine Process
(AAP) was extensively tested in the Alstom Power pilot plant facility located
at Växjö, Sweden. The performance of a proprietary solvent X was evaluated under
varied flow schemes.
The test campaign comprised
several series of tests, including energy consumption at varied ratio of liquid
to gas flow rate in absorber with 90% CO2 removal, effect of
absorber packing height, and energy performance under advanced flows schemes as
compared to conventional ones. With advanced flow schemes, the energy demand for
CO2 separation excluding CO2 compression work was reduced
by 13% - 21% compared to the conventional flow scheme, at 90% CO2
capture.
The predictive capability of Procede Process Simulator
was examined against the pilot plant data for absorber and regenerator. The
correlations for mass transfer and interfacial area developed by The University
of Texas at Austin were implemented for the rate-based modeling of Mellapak 2X
absorber packing. The comparison between the simulation results and the pilot
plant data shows that the model is capable of satisfactorily predicting the
performance of AAP under different process conditions and configurations. Comparison
of the simulation to the experimental results in terms of deviation for key
parameters is summarized in the following Table.
Table 1. Deviation
between simulation and experimental results for AAP performance.
Average Absolute Deviation (AADa) |
BIASb |
|
Absorber CO2 removal percentage (wrt. Liquid) |
4.7% |
-0.8% |
Absorber outlet amine solvent flow rate |
1.1% |
-0.5% |
Absorber rich loading |
2.7% |
-0.4% |
Stripper lean Loading |
2.8% |
-0.2% |
Stripper outlet gas flow rate |
14.8% |
-6.5% |
Stripper gas temperature at the outlet of the column (K) |
3.4c |
-1.3 c |
Stripper outlet amine solvent temperature (K) |
0.4c |
0.3 c |
c: For temperature, the arithmetical mean value of deviation is used. |
* Corresponding author. Tel.:
+1-865-560-1732; fax: +1-865-560-1642.
E-mail address: frederic.vitse@power.alstom.com.
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