Title: Effective energy efficient methods for heat duty reduction for amine-based post-combustion capture process based on the theoretical reactions energy calculation

Authors: Zhihao Yu; Huancong Shi

Addresses: The Public Experiment Center, University of Shanghai for Science and Technology, Shanghai, 200093, China ' Department of Environmental Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China

Abstract: There have been many intensive studies in the field of carbon capture and storage (CCS), and a large number of studies have delved into developing energy efficient approaches for heat duty reductions of post-combustion CO2 capture processes under pilot plant scale. This research implemented practical applications of amine regeneration to conduct an energy efficient method based on theoretical reaction energy estimation. The reaction energy calculations was completed on a conventional monoethanolamine (MEA)-based amine scrubbing process, in order to verify that there was a huge deviation of the reaction energy (18.69 kJ/mol CO2/425 kJ/kg CO2) comparing to the overall energy cost (1,300 kJ/kg CO2) including the heat duty and work of CO2 compressing and transportation. Then, two common terms were explained in detail here: 'energy distribution' and 'energy efficiency'. Catalytic amine regeneration was as another practical, beneficial and energy efficient methodology. [Received: October 7, 2015; Accepted: Mach 11, 2016]

Keywords: carbon management; carbon capture and storage; CCS; amine scrubbing process; heat duty reduction; energy efficiency; energy distribution; catalytic amine regeneration; CO2; carbon dioxide.

DOI: 10.1504/IJOGCT.2017.081097

International Journal of Oil, Gas and Coal Technology, 2017 Vol.14 No.1/2, pp.172 - 185

Received: 12 Oct 2015
Accepted: 11 Mar 2016

Published online: 21 Dec 2016 *

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