Journal
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
Volume 51, Issue -, Pages 106-117Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijggc.2016.04.035
Keywords
Post combustion CO2 capture; Piperazine activated; 2-amino-2-methyl-l-propanol; Pilot plant study; Specific energy for solvent regeneration
Categories
Funding
- ANDRITZ AG
- EVN AG
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Piperazine (PIP) activated 2-amino-2-methyl-1-propanol (AMP) (28/17 wt% AMP/PIP) was investigated in a PCC test facility on the power plant in Durnrohr, Austria. Through the use of real power plant flue gas and the well-conceived dimensions of the test facility, industry-related conditions for full-scale applications can be assured. The specific energy consumption for solvent regeneration can be reduced to 3.15 GJ/t(co2) (without absorber intercooler and multi-stage flash), resulting in an energy saving of 10% in comparison to 30 wt% monoethanolamine (MEA). The optimal solvent flow rate is 38% lower in comparison to that of 30 wt% MEA, resulting in less pumping demand. 28/17 wt% AMP/PIP shows a good performance especially at high flue gas flow rates because of piperazineis fast kinetics. The fast kinetics also have a positive effect in the reduction of the absorber height. Halving the absorber height still allows a performance similar to that of 30 wt% MEA. In contrast to the MEA-process, the energy demand remains constant when varying the desorber pressure. (C) 2016 Elsevier Ltd. All rights reserved.
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