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Efficiency and Energy Analysis of Power Plants with Amine‐Impregnated Solid Sorbents CO 2 Capture
Author(s) -
Lara Yolanda,
Romeo Luis M.,
Lisbona Pilar,
Espatolero Sergio,
Escudero Ana I.
Publication year - 2018
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201700806
Subject(s) - sorbent , amine gas treating , process engineering , efficient energy use , reuse , power station , electricity generation , reduction (mathematics) , computer science , environmental science , waste management , chemistry , power (physics) , adsorption , environmental engineering , mathematics , engineering , organic chemistry , thermodynamics , physics , electrical engineering , geometry
Some of the relevant post‐combustion CCS research trends includes the reduction of the energy consumption required for regeneration. It is a priority to find novel solvents that show high affinity for CO 2 together with an ease of regeneration and reuse. Recently, impregnated solid sorbents have been suggested to tackle with these issues. In particular amine‐impregnated solid sorbents require less regeneration energy due to the reduction in water content and the higher heat capacity of solids. As a consequence, they may have the ability to reduce the efficiency penalty of CCS in power plants. Several studies have quantified the efficiency penalty of CO 2 capture in commercial power plants with amine absorption. It is generally assumed a reduction of 7–10 efficiency points. Nevertheless, there is not a clear quantification of the effect of solid sorbent capture plants on efficiency penalty. This paper tries to shed some light on this issue. The objective of this work is to demonstrate and quantify the effect on net power and efficiency penalty of using amine‐impregnated solid sorbents when applied as an option to carbon capture. A full process integration of the system and an overall optimisation for power generation have been carried out. Interesting results have been achieved; it is possible to reduce the efficiency penalty down to 6.7 efficiency points. This figure could make feasible the impregnated amine solid sorbent as a future and promising option for CO 2 capture.