Aqueous piperazine/N-(2-aminoethyl) piperazine for CO2 capture

Yang Du; Le Li; Omkar Namjoshi; Alexander K. Voice; Nathan A. Fine; Gary T. Rochelle

doi:10.1016/j.egypro.2013.06.038

Aqueous piperazine/N-(2-aminoethyl) piperazine for CO₂ capture

Yang Du, Le Li, Omkar Namjoshi, Alexander K. Voice, Nathan A. Fine, Gary T. Rochelle

Research output: Contribution to journal › Conference article › peer-review

Abstract

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.

Original language	English (US)
Pages (from-to)	1621-1638
Number of pages	18
Journal	Energy Procedia
Volume	37
DOIs	https://doi.org/10.1016/j.egypro.2013.06.038
State	Published - 2013
Externally published	Yes
Event	11th International Conference on Greenhouse Gas Control Technologies, GHGT 2012 - Kyoto, Japan Duration: Nov 18 2012 → Nov 22 2012

Keywords

Aminoethylpiperazine
Degradation
Nitrosamine
Piperazine
Solvent blend

ASJC Scopus subject areas

General Energy

Online availability

10.1016/j.egypro.2013.06.038

Library availability

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Cite this

@article{df5da48c6bc840a4aad703c54830390c,

title = "Aqueous piperazine/N-(2-aminoethyl) piperazine for CO2 capture",

abstract = "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.",

keywords = "Aminoethylpiperazine, Degradation, Nitrosamine, Piperazine, Solvent blend",

author = "Yang Du and Le Li and Omkar Namjoshi and Voice, {Alexander K.} and Fine, {Nathan A.} and Rochelle, {Gary T.}",

year = "2013",

doi = "10.1016/j.egypro.2013.06.038",

language = "English (US)",

volume = "37",

pages = "1621--1638",

journal = "Energy Procedia",

issn = "1876-6102",

publisher = "Elsevier Ltd",

note = "11th International Conference on Greenhouse Gas Control Technologies, GHGT 2012 ; Conference date: 18-11-2012 Through 22-11-2012",

}

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T1 - Aqueous piperazine/N-(2-aminoethyl) piperazine for CO2 capture

AU - Du, Yang

AU - Li, Le

AU - Namjoshi, Omkar

AU - Voice, Alexander K.

AU - Fine, Nathan A.

AU - Rochelle, Gary T.

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

KW - Aminoethylpiperazine

KW - Degradation

KW - Nitrosamine

KW - Piperazine

KW - Solvent blend

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T2 - 11th International Conference on Greenhouse Gas Control Technologies, GHGT 2012

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