Exhaust Gas Recycle (EGR) is one of the technologies used to increase the CO2 concentration in the gas turbine flue gas. This paper presents the results of an experimental campaign carried out at the Pilot-scale Advanced Capture Technology (PACT) facilities at the UK Carbon Capture and Storage Research Centre (UKCCSRC). A 100 kWe Turbec T100 PH microturbine was integrated with a post combustion CO2 capture plant that has a CO2 capture capacity of one ton per day. The impact of different CO2 concentrations (representing a range of EGR ratios) on the post-combustion CO2 capture process was experimentally evaluated using 30% (wt.%) Monoethanolamine (MEA) solvent. It was observed that the specific reboiler duty was reduced by around 7.1% per unit percentage increase in CO2 concentration. Overall, it was seen that the higher the CO2 concentration, the lower the specific reboiler duty at a fixed capture rate. Both rich and lean solvent loadings increased with increase in flue gas CO2 concentration. Energy balance on the stripper has shown that steam generation rate and condenser duty increases with increase in CO2 concentration. The experimental data was used to develop and validate the model for the Pilot-scale amine capture plant using Aspen HYSYS.
|Number of pages||14|
|Journal||International Journal of Greenhouse Gas Control|
|Early online date||12 Feb 2016|
|Publication status||Published - Apr 2016|
Bibliographical noteFunding Information:
The authors would like to acknowledge the financial support of the UK Engineering and Physical Sciences Research Council (EPSRC) in carrying out this work (EPSRC Gas-FACTS: Gas – Future Advanced Capture Technology Options, EP/J020788/1). The authors would like to acknowledge the UK CCS Research Centre ( www.ukccsrc.ac.uk ) for making their Pilot-scale Advanced Capture Technology (PACT) facilities available for the research. The UKCCSRC is funded by the EPSRC as part of the Research Council UK (RCUK) Energy Programme.
© 2016 Elsevier B.V., All rights reserved.
- Exhaust Gas Recycle
- Gas turbines
- Post-combustion CO capture
- Process modelling
- Specific reboiler duty
ASJC Scopus subject areas
- Industrial and Manufacturing Engineering
- Management, Monitoring, Policy and Law