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Publisher DOI: 10.1021/acs.iecr.8b03444
Title: Dynamic simulation and investigation of the startup process of a postcombustion-capture plant
Language: English
Authors: Marx-Schubach, Thomas 
Schmitz, Gerhard 
Issue Date: 12-Dec-2018
Publisher: American Chemical Society
Source: Industrial and Engineering Chemistry Research 49 (57): 16751-16762 (2018-12-12)
Journal or Series Name: Industrial & engineering chemistry research 
Abstract (english): Carbon capture is an important possibility to reduce carbon dioxide emissions. To be able to study the startup process of such an amine-scrubbing process, a startup model of a postcombustion-capture plant (pcc-plant) was developed in the Modelica language and validated with measured data from a pilot plant in Heilbronn, Germany. Afterward, the process was scaled up in the model to handle the entire flue-gas flow of a 875 MW coal-fired power plant, resulting in three parallel capture plants. A case study was carried out to investigate the startup process of the pcc-plant in detail, indicating that the startup time increased drastically when the plant is operating at partial load. The startup time for a cold start from the beginning of steam flow to a 90% carbon-capture rate is t = 1900 s at full load and t = 11 075 s at 15% load. The total heat demand in the reboiler of one pcc-plant is 326 GJ at full load and 370 GJ at 15% load. Other results show that the startup time increases linearly with increasing total amount of solvent and that the steam flow rate and solvent flow rate have a high impact on the startup time. © 2018 American Chemical Society.
DOI: 10.15480/882.2182
ISSN: 1520-5045
Institute: Technische Thermodynamik M-21 
Type: (wissenschaftlicher) Artikel
Project: DYNSTART - Anfahren und transientes Verhalten von Kraftwerken, Untersuchung von Dampfkraftprozessen und kombinierten Gas- und Dampfprozessen mit CO²-Abtrennung unter den Randbedingungen einer hohen fluktuierenden regenerativen Einspeisung 
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