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@article{Cabral:2019:10.1021/acs.iecr.9b00305,
author = {Cabral, RP and Heldebrant, DJ and Mac, Dowell N},
doi = {10.1021/acs.iecr.9b00305},
journal = {Industrial and Engineering Chemistry Research},
title = {A Techno-Economic Analysis of a Novel Solvent-Based Oxycombustion CO <inf>2</inf> Capture Process},
url = {http://dx.doi.org/10.1021/acs.iecr.9b00305},
year = {2019}
}

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TY  - JOUR
AB  - Copyright © 2019 American Chemical Society.  The gas processing unit (GPU) has previously been identified as the least thermodynamically efficient element of an oxycombustion process. A marginal improvement of this unit operation can provide a greater decrease of the parasitic power to the oxycombustion process than an equivalent improvement in the air separation unit (ASU). Hence, capturing CO 2 from oxycombustion using an alternative method than the conventional cryogenic process has potential to reduce the parasitic power consumption of the GPU. In this work, the authors present an initial evaluation of a new process concept; a hybrid oxycombustion process that uses a solvent-based GPU to capture CO 2 from the flue gas. N-Ethyldiethanolamine (EDEA) is a tertiary alkanolamine that captures CO 2 by forming a zwitterionic ammonium alkylcarbonate ionic liquid in the absence of water as a cosolvent. The new solvent-based GPU proposed herein demonstrates a clear potential to improve the net power efficiency by 1%, a 9% CAPEX reduction, and up to 5% LCOE reduction of an oxycombustion process if the price of EDEA is below $270/kg. Both lower CAPEX and the potential of reduced LCOE demonstrates that alternative CO 2 capture methods for oxycombustion can be more economical.
AU  - Cabral,RP
AU  - Heldebrant,DJ
AU  - Mac,Dowell N
DO  - 10.1021/acs.iecr.9b00305
PY  - 2019///
SN  - 0888-5885
TI  - A Techno-Economic Analysis of a Novel Solvent-Based Oxycombustion CO <inf>2</inf> Capture Process
T2  - Industrial and Engineering Chemistry Research
UR  - http://dx.doi.org/10.1021/acs.iecr.9b00305
ER  -

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Professor Niall Mac Dowell FIChemE FRSC

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