Comparison of solvent performance for CO2 capture from coal-derived flue gas: A pilot scale study

Reynolds A. Frimpong; Don Johnson; Lisa Richburg; Brian Hogston; Joseph E. Remias; James K. Neathery; Kunlei Liu

doi:10.1016/j.cherd.2012.10.006

Comparison of solvent performance for CO₂ capture from coal-derived flue gas: A pilot scale study

Reynolds A. Frimpong, Don Johnson, Lisa Richburg, Brian Hogston, Joseph E. Remias, James K. Neathery, Kunlei Liu

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

The performance of a proprietary solvent (CAER-B2), an amine-carbonate blend, for the absorption of CO₂ from coal-derived flue gas is evaluated and compared with state-of-the-art 30wt% monoethanolamine (MEA) under similar experimental conditions in a 0.1MWth pilot plant. The evaluation was done by comparing the carbon capture efficiency, the overall mass transfer rates, and the energy of regeneration of the solvents. For similar carbon loadings of the solvents in the scrubber, comparable mass transfer rates were obtained. The rich loading obtained for the blend was 0.50molCO₂/molamine compared to 0.44molCO₂/molamine for MEA. The energy of regeneration for the blend was about 10% lower than that of 30wt% MEA. At optimum conditions, the blend shows promise in reducing the energy penalty associated with using industry standard, MEA, as a solvent for CO₂ capture.

Original language	English
Pages (from-to)	963-969
Number of pages	7
Journal	Chemical Engineering Research and Design
Volume	91
Issue number	6
DOIs	https://doi.org/10.1016/j.cherd.2012.10.006
State	Published - Jun 2013

Bibliographical note

Funding Information:
This work was supported with funding by members of the Carbon Management Research Group: American Electric Power (AEP) , Duke Energy, East Kentucky Power Cooperative (EKPC) , Electric Power Research Institute (EPRI) , Kentucky Department of Energy Development and Independence (KY DEDI) , and LG&E and KU Energy .

Keywords

Amine blend
CO absorption
Energy penalty
Flue gas
Mass transfer
Pilot scale

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

Access to Document

10.1016/j.cherd.2012.10.006

Cite this

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title = "Comparison of solvent performance for CO2 capture from coal-derived flue gas: A pilot scale study",

abstract = "The performance of a proprietary solvent (CAER-B2), an amine-carbonate blend, for the absorption of CO2 from coal-derived flue gas is evaluated and compared with state-of-the-art 30wt% monoethanolamine (MEA) under similar experimental conditions in a 0.1MWth pilot plant. The evaluation was done by comparing the carbon capture efficiency, the overall mass transfer rates, and the energy of regeneration of the solvents. For similar carbon loadings of the solvents in the scrubber, comparable mass transfer rates were obtained. The rich loading obtained for the blend was 0.50molCO2/molamine compared to 0.44molCO2/molamine for MEA. The energy of regeneration for the blend was about 10% lower than that of 30wt% MEA. At optimum conditions, the blend shows promise in reducing the energy penalty associated with using industry standard, MEA, as a solvent for CO2 capture.",

keywords = "Amine blend, CO absorption, Energy penalty, Flue gas, Mass transfer, Pilot scale",

author = "Frimpong, {Reynolds A.} and Don Johnson and Lisa Richburg and Brian Hogston and Remias, {Joseph E.} and Neathery, {James K.} and Kunlei Liu",

note = "Funding Information: This work was supported with funding by members of the Carbon Management Research Group: American Electric Power (AEP) , Duke Energy, East Kentucky Power Cooperative (EKPC) , Electric Power Research Institute (EPRI) , Kentucky Department of Energy Development and Independence (KY DEDI) , and LG&E and KU Energy . ",

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AU - Frimpong, Reynolds A.

AU - Johnson, Don

AU - Richburg, Lisa

AU - Hogston, Brian

AU - Remias, Joseph E.

AU - Neathery, James K.

AU - Liu, Kunlei

N1 - Funding Information: This work was supported with funding by members of the Carbon Management Research Group: American Electric Power (AEP) , Duke Energy, East Kentucky Power Cooperative (EKPC) , Electric Power Research Institute (EPRI) , Kentucky Department of Energy Development and Independence (KY DEDI) , and LG&E and KU Energy .

PY - 2013/6

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N2 - The performance of a proprietary solvent (CAER-B2), an amine-carbonate blend, for the absorption of CO2 from coal-derived flue gas is evaluated and compared with state-of-the-art 30wt% monoethanolamine (MEA) under similar experimental conditions in a 0.1MWth pilot plant. The evaluation was done by comparing the carbon capture efficiency, the overall mass transfer rates, and the energy of regeneration of the solvents. For similar carbon loadings of the solvents in the scrubber, comparable mass transfer rates were obtained. The rich loading obtained for the blend was 0.50molCO2/molamine compared to 0.44molCO2/molamine for MEA. The energy of regeneration for the blend was about 10% lower than that of 30wt% MEA. At optimum conditions, the blend shows promise in reducing the energy penalty associated with using industry standard, MEA, as a solvent for CO2 capture.

AB - The performance of a proprietary solvent (CAER-B2), an amine-carbonate blend, for the absorption of CO2 from coal-derived flue gas is evaluated and compared with state-of-the-art 30wt% monoethanolamine (MEA) under similar experimental conditions in a 0.1MWth pilot plant. The evaluation was done by comparing the carbon capture efficiency, the overall mass transfer rates, and the energy of regeneration of the solvents. For similar carbon loadings of the solvents in the scrubber, comparable mass transfer rates were obtained. The rich loading obtained for the blend was 0.50molCO2/molamine compared to 0.44molCO2/molamine for MEA. The energy of regeneration for the blend was about 10% lower than that of 30wt% MEA. At optimum conditions, the blend shows promise in reducing the energy penalty associated with using industry standard, MEA, as a solvent for CO2 capture.

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