Aqueous Piperazine/N-(2-Aminoethyl) Piperazine for CO2 Capture

Autor: Le Li, Omkar Namjoshi, Nathan A. Fine, Yang Du, Gary T. Rochelle, Alexander K. Voice
Jazyk: angličtina
Předmět:
Zdroj: Energy Procedia. :1621-1638
ISSN: 1876-6102
DOI: 10.1016/j.egypro.2013.06.038
Popis: A novel blend of piperazine (PZ) with N-(2-aminoethyl) piperazine (AEP) has been proposed as a superior solvent for CO2 capture from coal-fired flue gas. Blending PZ with AEP can remediate the precipitation issue of concentrated PZ while maintaining its high CO2 absorption rate, and high resistance to degradation. Although PZ/AEP has a lower CO2 capacity than concentrated piperazine, its higher heat of absorption may offset the negative effect on energy consumption. PZ/AEP also shows a milder nitrosamine issue than concentrated piperazine. A novel method for synthesizing AEP using PZ and monoethanolamine (MEA) was also developed to lower the solvent cost in industry application.
Databáze: OpenAIRE