Microwave swing regeneration of aqueous monoethanolamine for post-combustion CO2 capture

Stephen J. McGurk, Claudia F. Martin, Stefano Brandani, Martin B Sweatman (Corresponding Author), Xianfeng Fan (Corresponding Author)

Research output: Contribution to journalArticle

18 Citations (Scopus)
4 Downloads (Pure)

Abstract

Post-combustion carbon capture is a key component of the fight against global warming and climate change. Amine stripping is currently the leading post-combustion technology, and indeed is employed at the World’s first and only commercial scale carbon capture project applied to a power plant, at Boundary Dam, Canada. Normally, regeneration of the spent amine solution is achieved by stripping with hot pressurized steam, at around 120-140 °C and 1-2 bar. However, production of these conditions is costly and leads to significant degradation of the amine. Moreover, the size of equipment, and hence capital costs, are also high due to the regeneration timescales involved. Here, we present proof-of-concept laboratory scale experiments to demonstrate the feasibility of regenerating the spent amine solution with microwave irradiation. We show that microwaves can regenerate spent aqueous monoethanolamine solutions quickly and at low temperatures (70-90 oC), potentially reducing overall process costs. By comparing microwave regeneration with conventional thermal regeneration we suggest that, in addition to the usual benefits of microwave heating, microwaves present a special ‘non-thermal’ effect.
Original languageEnglish
Pages (from-to)126-133
Number of pages8
JournalApplied Energy
Volume192
Early online date14 Feb 2017
DOIs
Publication statusPublished - 15 Apr 2017

Fingerprint

Amines
regeneration
combustion
Microwaves
Carbon capture
Microwave heating
Microwave irradiation
Global warming
Climate change
Dams
carbon
Costs
Power plants
Steam
cost
global climate
global warming
power plant
irradiation
Degradation

Keywords

  • CO2 capture
  • amine
  • energy
  • microwave
  • absorption kinetics
  • absorption isotherm

Cite this

Microwave swing regeneration of aqueous monoethanolamine for post-combustion CO2 capture. / McGurk, Stephen J. ; Martin, Claudia F.; Brandani, Stefano; Sweatman, Martin B (Corresponding Author); Fan, Xianfeng (Corresponding Author).

In: Applied Energy, Vol. 192, 15.04.2017, p. 126-133.

Research output: Contribution to journalArticle

McGurk, Stephen J. ; Martin, Claudia F. ; Brandani, Stefano ; Sweatman, Martin B ; Fan, Xianfeng. / Microwave swing regeneration of aqueous monoethanolamine for post-combustion CO2 capture. In: Applied Energy. 2017 ; Vol. 192. pp. 126-133.
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abstract = "Post-combustion carbon capture is a key component of the fight against global warming and climate change. Amine stripping is currently the leading post-combustion technology, and indeed is employed at the World’s first and only commercial scale carbon capture project applied to a power plant, at Boundary Dam, Canada. Normally, regeneration of the spent amine solution is achieved by stripping with hot pressurized steam, at around 120-140 °C and 1-2 bar. However, production of these conditions is costly and leads to significant degradation of the amine. Moreover, the size of equipment, and hence capital costs, are also high due to the regeneration timescales involved. Here, we present proof-of-concept laboratory scale experiments to demonstrate the feasibility of regenerating the spent amine solution with microwave irradiation. We show that microwaves can regenerate spent aqueous monoethanolamine solutions quickly and at low temperatures (70-90 oC), potentially reducing overall process costs. By comparing microwave regeneration with conventional thermal regeneration we suggest that, in addition to the usual benefits of microwave heating, microwaves present a special ‘non-thermal’ effect.",
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AB - Post-combustion carbon capture is a key component of the fight against global warming and climate change. Amine stripping is currently the leading post-combustion technology, and indeed is employed at the World’s first and only commercial scale carbon capture project applied to a power plant, at Boundary Dam, Canada. Normally, regeneration of the spent amine solution is achieved by stripping with hot pressurized steam, at around 120-140 °C and 1-2 bar. However, production of these conditions is costly and leads to significant degradation of the amine. Moreover, the size of equipment, and hence capital costs, are also high due to the regeneration timescales involved. Here, we present proof-of-concept laboratory scale experiments to demonstrate the feasibility of regenerating the spent amine solution with microwave irradiation. We show that microwaves can regenerate spent aqueous monoethanolamine solutions quickly and at low temperatures (70-90 oC), potentially reducing overall process costs. By comparing microwave regeneration with conventional thermal regeneration we suggest that, in addition to the usual benefits of microwave heating, microwaves present a special ‘non-thermal’ effect.

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