A parametric study of CO2 capture from gas-fired power plants using monoethanolamine (MEA)

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Title: A parametric study of CO2 capture from gas-fired power plants using monoethanolamine (MEA)
Authors: Soltani, SM
Fennell, PS
Mac Dowell, N
Item Type: Journal Article
Abstract: The value of dispatchable, low carbon thermal power plants as a complement to intermittent renewable energy sources is becoming increasingly recognised. In this study, we evaluate the performance of post-combustion CO2 capture using monoethanolamine (MEA) retrofitted to a 600 MW CCGT, with and without exhaust gas recycle (EGR). Our results suggest that the EGR ratio plays a primary role in the regeneration energy penalty of the process. We contrast a gas-CCS process with its coal counterpart and show that whilst CCGTs have a greater energy penalty per tonne of CO2 captured than coal (i.e., GJtCO2Gas>GJtCO2Coal), owing to the high thermal efficiencies of CCGTs relative to coal-fired power plants, the energy penalty per MWh of low carbon energy generated is lower for gas than it is for coal (i.e., GJMWhGas<GJMWhCoal), making CCGT-CCS an attractive choice for low carbon electricity generation.
Issue Date: 21-Jun-2017
Date of Acceptance: 4-Jun-2017
URI: http://hdl.handle.net/10044/1/54611
DOI: https://dx.doi.org/10.1016/j.ijggc.2017.06.001
ISSN: 1750-5836
Publisher: Elsevier
Start Page: 321
End Page: 328
Journal / Book Title: International Journal of Greenhouse Gas Control
Volume: 63
Copyright Statement: © 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/M015351/1
Keywords: Science & Technology
Technology
GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
Energy & Fuels
Engineering, Environmental
Science & Technology - Other Topics
Engineering
CO2 capture
Post-combustion capture
Aspen Plus
CCGT
Gas CCS
Gas-fired power plant
MULTICOMPONENT SEPARATION PROCESSES
NONEQUILIBRIUM STAGE MODEL
PILOT-PLANT
POSTCOMBUSTION CAPTURE
CHEMICAL ABSORPTION
CARBON CAPTURE
AQUEOUS MONOETHANOLAMINE
PART I.
PERFORMANCE
SOLVENTS
04 Earth Sciences
05 Environmental Sciences
09 Engineering
Energy
Publication Status: Published
Appears in Collections:Centre for Environmental Policy
Chemical Engineering
Faculty of Natural Sciences



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