Journal
APPLIED ENERGY
Volume 111, Issue -, Pages 142-152Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2013.04.074
Keywords
Absorption; Regeneration; CO2 capture; Aqueous ammonia; Process simulation
Categories
Funding
- Beijing Municipal Commission for Science Technology [Z08040902950803]
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A rate-based model, RateFrac, in Aspen Plus process simulator, is used to simulate the CO2 absorption and regeneration processes of a research scale pilot plant. The simulation results of the CO2 absorption and regeneration predicted by the rate-based model are in good agreement with the experimental data. The effects of lean solvent flow rate, NH3 concentration, CO2 loading, and temperature on the absorption process were analyzed. Optimization analysis for the CO2 regeneration process was carried out. The operation parameters include temperature of the rich solvent, temperature of the condenser, inner diameter and packed height of the stripper. Under the optimal operation conditions, the regeneration energy is 3.63 MJ/kgCO(2), which is much lower than that reported for the research scale pilot plant (4-4.2 MJ/kgCO(2)). (C) 2013 Elsevier Ltd. All rights reserved.
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