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

Cousins, Ashleigh; Wardhaugh, Leigh; Feron, Paul

doi:10.1016/j.cherd.2011.02.008

Cited by 116 publications

(85 citation statements)

References 4 publications

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“…The Kent-Eisenberg model gave slightly higher heat consumption. The standard process gives a lower value than in most references [7,9,13,17], and as mentioned earlier, this can be explained by a high number of stages, a low temperature difference and a low removal grade.…”

Section: Energy Comparisons Of the Alternativesmentioning

confidence: 83%

“…Recent surveys of process flowsheet modifications for energy efficient CO 2 capture from flue gas using chemical absorption have been published by Cousins et al [5] and also Le Moullec and Kanniche [6]. Rate-based Aspen Plus simulations for such processes have been performed by Cousins et al [7], and Fernandez et al [8] have also performed cost estimation based on Aspen Plus simulations. Simulations with the process simulation programs Unisim and ProTreat followed by economical calculations have been performed by Karimi et al [9].…”

Section: Literature On Alternative Process Configurations For Co 2 Abmentioning

confidence: 99%

“…The values in this work are close to Karimi's values. Using a rate-based simulation tool, a vapour recompression process has been calculated by Cousins et al [7] with a reboiler duty of 3.0 MJ/kg CO 2 removed compared to a standard process using 3.8 MJ/kg CO 2 . The reduction of 0.7 MJ/kg in this work is close to the reduction of 0.8 MJ/kg in Cousin's work.…”

Section: Energy Comparisons Of the Alternativesmentioning

confidence: 99%

See 2 more Smart Citations

Optimization of Configurations for Amine based CO2 Absorption Using Aspen HYSYS

et al. 2014

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The drawback with an absorption based CO 2 capture process is the large heat consumption needed for desorption. Different absorption and desorption configurations for 85 % amine based CO 2 removal from a natural gas based power plant have been simulated using Aspen HYSYS. A standard process, split-stream, vapour recompression and different combinations thereof have been simulated. The simulations have been used as a basis for equipment dimensioning, cost estimation and process optimization. Of the evaluated cases, a simple vapour recompression case has been calculated to be the most cost optimum configuration.

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Section: Energy Comparisons Of the Alternativesmentioning

confidence: 83%

Section: Literature On Alternative Process Configurations For Co 2 Abmentioning

confidence: 99%

Section: Energy Comparisons Of the Alternativesmentioning

confidence: 99%

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Optimization of Configurations for Amine based CO2 Absorption Using Aspen HYSYS

et al. 2014

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“…However, this will lead to the formation of diluted ammonia solution, which requires the subsequent recovery of ammonia and regeneration of water. After examining several alternative options, we chose rich solvent split as the focus of the investigation (Cousins et al, 2011). In this option, a small portion of rich solvent is introduced into the top of stripper, while the rest of the rich solvent is heated and introduced into the middle of the stripper (e.g.…”

Section: Applying the Rich Solvent Split Option To Eliminate Solid Prmentioning

confidence: 99%

Results from trialling aqueous ammonia-based post-combustion capture in a pilot plant at Munmorah Power Station: Gas purity and solid precipitation in the stripper

Wang

et al. 2012

International Journal of Greenhouse Gas Control

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“…For their base line configuration in which 2.1053 kmol/h of CO 2 captured by 30 mass% MEA, they found that the reboiler heat duty was 187.5 kW. Cousins et al [3] analyzed process flowsheet modification for energy efficient CO 2 capture from flue gases with aqueous solution of MEA. Their simulation results for 85% CO 2 capture from flue gas with a CO 2 purity stream of about 98% revealed that up to 19% energy can be saved by using vapor compression of lean solvent flashing.…”

Section: Introductionmentioning

confidence: 99%

Retrofitting a CO2 Capture Unit with a Coal Based Power Plant, Process Simulation and Parametric Study

Dash¹,

Wadibhasme²

2017

JOCET

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Abstract-In this work flowsheet simulation of a coal fired power plant retrofitted with a CO 2 capture unit has been carried out in the AspenPlus process simulator platform. The simulation is an attempt for the detailed process involved in CO 2 capture starting from generation of flue gas, CO 2 capture by monoethanolamine (MEA) and regeneration of solvent using unit operation models available in Aspen Plus and appropriate calculator blocks wherever necessary using FORTRAN codes. The parametric study includes effect of absorber column height, regenerator pressure, on reboiler heat duty and power plant efficiency. Parametric study such as energy penalty on the power plant, reboiler duty of the capture unit, evolution of energy requirement has been done and presented. The contribution of desorption energy is about 47% of the total capture energy and the power plant penalty is about 30% lower when low pressure steam has been utilized to supply heat energy to reboiler. Index Terms-CO 2 capture, MEA, absorption, coal-fired power plant, simulation.

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

Cited by 116 publications

References 4 publications

Optimization of Configurations for Amine based CO2 Absorption Using Aspen HYSYS

Optimization of Configurations for Amine based CO2 Absorption Using Aspen HYSYS

Results from trialling aqueous ammonia-based post-combustion capture in a pilot plant at Munmorah Power Station: Gas purity and solid precipitation in the stripper

Retrofitting a CO2 Capture Unit with a Coal Based Power Plant, Process Simulation and Parametric Study

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