Aspen Plus rate-based modeling for reconciling laboratory scale and pilot scale CO2 absorption using aqueous ammonia
| Autor: | Chao-Chin Peng, Jialin Liu, David Shan-Hill Wong, Jui-Fu Shen, Shi-Shang Jang, Han-Ci Gao |
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| Rok vydání: | 2015 |
| Předmět: |
Aqueous solution
Post-combustion capture Chemistry Experimental data Thermodynamics Management Monitoring Policy and Law Kinetic energy Pollution Industrial and Manufacturing Engineering General Energy Pilot plant Mass transfer Environmental chemistry Process simulation Absorption (electromagnetic radiation) |
| Zdroj: | International Journal of Greenhouse Gas Control. 34:117-128 |
| ISSN: | 1750-5836 |
| Popis: | In this study, simulations of CO 2 absorption by aqueous ammonia using the rate-based model of Aspen Plus were investigated using laboratory scale experiments and pilot data in the literature. It was found that predictions are greatly influenced by the choice of transfer condition factor and reaction condition factor, mass transfer coefficients, and kinetic parameters in the rate-based model. Using the kinetic data provided by Pinsent et al. (1956) , and mass transfer correlations provided by Billet and Schultes (1993) , the optimal settings of transfer and reactor condition factors were found to be 0.75 and 0.25, respectively, by fitting experimental data obtained in the laboratory using 3 wt% aqueous ammonia. This set of parameters can be extended to the laboratory results of using 7 wt% aqueous ammonia, as well as pilot plant data provided by Yu et al. (2011) . The results show that it is very important to reconcile the simulation model with data from various operating conditions and different scales before it is used for reliable process design and optimization. |
| Databáze: | OpenAIRE |
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