Thermal degradation of novel piperazine-based amine blends for CO2 capture

Yang Du, Yukai Wang, Gary T. Rochelle

Research output: Contribution to journalArticlepeer-review


36 novel piperazine (PZ)-based amine blends were investigated for their thermal stability for CO2 capture. These amines include 7 imidazoles, 8 cyclic and long-chain diamines, 12 tertiary amines, 4 hindered amines, 3 hindered and tertiary amino acids, and 2 ether amines that were selected based on known amine structure-property relationships and their potential for industrial application. 18 thermally stable PZ-based amine blends were identified based on their degradation rates in CO2 loaded solutions at 150 and 175 °C. Degradation mechanisms were studied to understand the relationships between the structure and thermal stability of the blended amines of the blends.

Original languageEnglish (US)
Pages (from-to)239-249
Number of pages11
JournalInternational Journal of Greenhouse Gas Control
StatePublished - Jun 1 2016


  • CO capture
  • Diamines
  • Hindered amines
  • Imidazole derivatives
  • Tertiary amines
  • Thermal degradation

ASJC Scopus subject areas

  • Pollution
  • Energy(all)
  • Management, Monitoring, Policy and Law
  • Industrial and Manufacturing Engineering


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