Preliminary analysis of process flow sheet modifications for energy efficient CO2 capture from flue gases using chemical absorption

Cousins, Ashleigh; Wardhaugh, Leigh T.; Feron, Paul H. M.
August 2011
Chemical Engineering Research & Design: Transactions of the Inst;Aug2011, Vol. 89 Issue 8, p1237
Academic Journal
The energy penalty associated with solvent based capture of CO2 from power station flue gases can be reduced by incorporating process flow sheet modifications into the standard process. A review of modifications suggested in the open and patent literature identified several options, primarily intended for use in the gas processing industry. It was not immediately clear whether these options would have the same benefits when applied to CO2 capture from near atmospheric pressure combustion flue gases. Process flow sheet modifications, including split flow, rich split, vapour recompression, and inter-stage cooling, were therefore modelled using a commercial rate-based simulation package. The models were completed for a Queensland (Australia) based pilot plant running on 30% MEA as the solvent. The preliminary modelling results showed considerable benefits in reducing the energy penalty of capturing CO2 from combustion flue gases. Further work will focus on optimising and validating the most relevant process flow sheet modifications in a pilot plant.


Related Articles

  • Experimental performance assessment of a mono-ethanolamine-based post-combustion CO2-capture at a coal-fired power station in China. Feron, Paul H.M.; Cousins, Ashleigh; Gao, Shiwang; Liu, Lianbo; Wang, Jinyi; Wang, Shiqing; Niu, Hongwei; Yu, Hai; Li, Kangkang; Cottrell, Aaron // Greenhouse Gases: Science & Technology;Jun2017, Vol. 7 Issue 3, p486 

    The performance of a mono-ethanolamine-based post-combustion CO2 capture plant was assessed experimentally using a dedicated pilot plant located at a coal-fired power station in China. The 1000-h pilot campaign enabled the assessment of the flue gas pre-treatment process, the conduct of a...

  • Pilot plant study of post-combustion carbon dioxide capture by reactive absorption: Methodology, comparison of different structured packings, and comprehensive results for monoethanolamine. Mangalapally, Hari Prasad; Hasse, Hans // Chemical Engineering Research & Design: Transactions of the Inst;Aug2011, Vol. 89 Issue 8, p1216 

    Post-combustion carbon capture (PCC) from fossil fuel power plants by reactive absorption can substantially contribute to reduce emissions of the greenhouse gas CO2. To test new solvents for this purpose small pilot plants are used. The present paper describes results of comprehensive studies of...

  • Design of a CO2 Removal Section Treating Very High Flue Gas Flowrates. Moioli, Stefania; Pellegrini, Laura A. // CET Journal - Chemical Engineering Transactions;2019, Vol. 74, p859 

    Carbon capture and storage (CCS) is a technology that can be used to significantly reduce the gradual global increase in Earth warming. Several methods are available, with absorption by amine solvents being the most feasible and technologically mature. One possible successful application of this...

  • Comparison of solvent performance for CO2 capture from coal-derived flue gas: A pilot scale study. Frimpong, Reynolds A.; Johnson, Don; Richburg, Lisa; Hogston, Brian; Remias, Joseph E.; Neathery, James K.; Kunlei Liu // Chemical Engineering Research & Design: Transactions of the Inst;Jun2013, Vol. 91 Issue 6, p963 

    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 30 wt% monoethanolamine (MEA) under similar experimental conditions in a 0.1 MWth pilot plant. The evaluation was...

  • A low-cost electro-gen solvent for carbon dioxide sequestration. Neelameggham, Neale R.; Davis, Brian R. // JOM: The Journal of The Minerals, Metals & Materials Society (TM;Sep2010, Vol. 62 Issue 9, p38 

    n innovative concept for one of the lowest-cost carbon dioxide capture methods from power plants and other carbon-dioxide-emitting facilities is provided here. The concept is to use a novel electro-thermo-chemical regeneration approach which will generate a product solution containing hydroxyl...

  • Rate based modeling and validation of a carbon-dioxide pilot plant absorbtion column operating on monoethanolamine. Simon, Levente L.; Elias, Yannick; Puxty, Graeme; Artanto, Yuli; Hungerbuhler, Konrad // Chemical Engineering Research & Design: Transactions of the Inst;Sep2011, Vol. 89 Issue 9, p1684 

    In-silico amine screening is a fast, low-cost and promising way of efficiently evaluating new amine molecules which are proposed for carbon-dioxide capture purposes. In order to implement the screening environment, reliable and robust absorber models are required. This contribution presents the...

  • CO2 Absorbing Capacity of MEA. Huertas, José I.; Gomez, Martin D.; Giraldo, Nicolas; Garzón, Jessica // Journal of Chemistry;9/7/2015, Vol. 2015, p1 

    We describe the use of a gas bubbler apparatus in which the gas phase is bubbled into a fixed amount of absorbent under standard conditions as a uniform procedure for determining the absorption capacity of solvents. The method was systematically applied to determine the CO2 absorbing capacity of...

  • Alternative solvents for post combustion carbon capture. Arachchige, Udara S. P. R.; Melaaen, Morten C. // International Journal of Energy & Environment;2013, Vol. 4 Issue 3, p441 

    The process model of post combustion chemical absorption is developed in Aspen Plus for both coal and gas fired power plant flue gas treating. The re-boiler energy requirement is considered as the most important factor to be optimized. Two types of solvents, mono-ethylamine (MEA) and...

  • Dynamic modeling of CO2 absorption from coal-fired power plants into an aqueous monoethanolamine solution. Posch, Sebastian; Haider, Markus // Chemical Engineering Research & Design: Transactions of the Inst;Jun2013, Vol. 91 Issue 6, p977 

    Among carbon capture and storage (CCS), the post-combustion capture of carbon dioxide (CO2) by means of chemical absorption is actually the most developed process. Steady state process simulation turned out as a powerful tool for the design of such CO2 scrubbers. Besides steady state modeling,...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics