Advancement and new perspectives of using formulated reactive amine blends for post-combustion carbon dioxide (CO2) capture technologies

Chikezie Nwaoha, Teeradet Supap, Raphael Idem, Chintana Saiwan, Paitoon Tontiwachwuthikul, Jaber Al Marri, Abdelbaki Benamor

Research output: Contribution to journalReview article

24 Citations (Scopus)

Abstract

Chemical absorption using amine–based solvents have proven to be the most studied, as well as the most reliable and efficient technology for capturing carbon dioxide (CO2) from exhaust gas streams and synthesis gas in all combustion and industrial processes. The application of single amine–based solvents especially the very reactive monoethanolamine (MEA) is associated with a parasitic energy demand for solvent regeneration. Since regeneration energy accounts for up to three–quarters of the plant operating cost, efforts in its reduction have prompted the idea of using blended amine solvents. This review paper highlights the success achieved in blending amine solvents and the recent and future technologies aimed at increasing the overall volumetric mass transfer coefficient, absorption rate, cyclic capacity and greatly minimizing both degradation and the energy for solvent regeneration. The importance of amine biodegradability (BOD) and low ecotoxicity as well as low amine volatility is also highlighted. Costs and energy penalty indices that influences the capital and operating costs of CO2 capture process was also highlighted. A new experimental method for simultaneously estimating amine cost, degradation rate, regeneration energy and reclaiming energy is also proposed in this review paper.

Original languageEnglish
Pages (from-to)10-36
Number of pages27
JournalCarbon Capture and Storage (CCUS): Carbon Capture and Storage
Volume3
Issue number1
DOIs
Publication statusPublished - 1 Mar 2017

Fingerprint

Carbon Dioxide
Amines
Carbon dioxide
combustion
carbon dioxide
regeneration
energy
Operating costs
cost
Degradation
degradation
Ethanolamine
Synthesis gas
Biodegradability
absorption coefficient
Exhaust gases
amine
Costs
mass transfer
Mass transfer

Keywords

  • Amine cost
  • Amine volatility
  • Biodegradability
  • Blended amines
  • CO capture
  • Degradation
  • Ecotoxicity
  • Oxy–fuel combustion
  • Post–combustion
  • Pre–combustion
  • Reclaiming energy
  • Regeneration energy

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geology
  • Geotechnical Engineering and Engineering Geology
  • Energy Engineering and Power Technology
  • Fuel Technology

Cite this

Advancement and new perspectives of using formulated reactive amine blends for post-combustion carbon dioxide (CO2) capture technologies. / Nwaoha, Chikezie; Supap, Teeradet; Idem, Raphael; Saiwan, Chintana; Tontiwachwuthikul, Paitoon; Al Marri, Jaber; Benamor, Abdelbaki.

In: Carbon Capture and Storage (CCUS): Carbon Capture and Storage, Vol. 3, No. 1, 01.03.2017, p. 10-36.

Research output: Contribution to journalReview article

Nwaoha, Chikezie ; Supap, Teeradet ; Idem, Raphael ; Saiwan, Chintana ; Tontiwachwuthikul, Paitoon ; Al Marri, Jaber ; Benamor, Abdelbaki. / Advancement and new perspectives of using formulated reactive amine blends for post-combustion carbon dioxide (CO2) capture technologies. In: Carbon Capture and Storage (CCUS): Carbon Capture and Storage. 2017 ; Vol. 3, No. 1. pp. 10-36.
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