Optimum design and control of amine scrubbing in response to electricity and CO2 prices

Ziaii, Sepideh; Rochelle, Gary T.; Edgar, Thomas F.

doi:10.1016/j.egypro.2011.02.041

Cited by 23 publications

(8 citation statements)

References 7 publications

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“…Capture plant response to variation in capture levels is specific to the configuration and technology of each capture unit. This work builds on the previous studies [2][3][4][5][6][7][8][9][10] by considering a continuous relationship between the plant electricity output penalty and broad operating capture level range, rather than considering design point capture and plant bypass only, or discrete full and minimum capture level scenarios. Recent studies [14,15] consider a continuous range of capture levels to illustrate plant operating costs related to capture level, but their work stops short of proposing a methodology to maximise net plant income by optimising the capture level, as presented in this work.…”

Section: Nomenclaturementioning

confidence: 98%

“…Previous work has primarily explored flexibility through capture plant bypassing and solvent storage [2][3][4][5][6][7][8][9][10]. This paper builds on that work to explore which factors are likely to be most important in determining maximum profit from given variations in the CO2 capture level.…”

Section: Introductionmentioning

confidence: 95%

“…It is important to carefully assess the technical options for operating thermal plants flexibly with CCS technologies, since many of the technologies being considered for CCS applications were originally developed for steady state operation in process industries [1]. However, operating with CCS could also increase options for flexible power plant output, including by reducing or bypassing carbon capture processes and converting the energy that is no longer used for CO2 capture and compression into electricity, as proposed by several studies [2][3][4][5][6][7][8][9][10]. The energy penalty incurred by operating with CO2 capture is a significant percentage of the net plant output.…”

Section: Introductionmentioning

confidence: 98%

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Valuing Responsive Operation of Post-combustion CCS Power Plants in Low Carbon Electricity Markets

et al. 2014

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This work considers the potential value in the additional flexibility of CCS post-combustion power plants gained by varying the operating CO2 capture level. The continuous relationship between CO2 capture level and the specific electricity output penalty is illustrated, and a new methodology is proposed for maximising net plant income through optimising the operating capture level. This methodology allows the plant to respond to electricity prices, fuel prices, and carbon reduction incentives including CO2 prices and premium payments for low carbon electricity. The implications for flexible operation under different market scenarios are qualified, and the indicative value to plant operators is determined.

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Section: Nomenclaturementioning

confidence: 98%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 98%

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Valuing Responsive Operation of Post-combustion CCS Power Plants in Low Carbon Electricity Markets

et al. 2014

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“…Using a single regenerator and one pressure configuration, the optimum operating pressure has been found 27 to be 2.1 bar [12,38]. The absorber was considered to be working near ambient condition plus required 28 pressure drop in packing.…”

Section: Identification Of Process Conditions and Control Structure Fmentioning

confidence: 99%

Selection and design of post-combustion CO2 capture process for 600 MW natural gas fueled thermal power plant based on operability

Dutta

Nord

Bolland

2017

Energy

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8Post-combustion CO 2 capture (PCC) plant for a typical 600 MW natural gas fueled thermal power plant was designed as a trade-off between 9 operability and mitigation of the efficiency penalty. Two modified PCC plant configurations with low efficiency penalty were selected. The 10 methodology for designing PCC plants was adapted by incorporating design constraints based on operability and the construction of absorbers. 11This was applied in sizing the equipment of the plants. Two configurations of absorbers were analyzed based on flue gas flow rate at full-load 12 condition and at time-average of an assumed load variation of a power plant operating flexibly. It was found that the absorber designed at time-

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“…Ziaii et al (2011) developed a rate-based model of the capture process using Aspen Custom Modeler and used it to maximize the power plant profit at different prices of electricity and CO 2 . Lin et al (2011) studied the dynamics of the absorption-regeneration loop in Aspen Plus Dynamics and stated that the control of the process water balance was essential for system long-term stability.…”

Section: Introductionmentioning

confidence: 99%

Dynamic modelling and control of a pilot plant for post-combustion CO2 capture

Léonard

Mogador

Belletante

et al. 2013

Computer Aided Chemical Engineering

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A dynamic model of a post-combustion capture pilot plant is developed using Aspen Plus Dynamics. An innovative process control strategy is studied for regulating the water balance of the process. A washing section where the flue gas from the absorber is washed with cold water is included to the process in order to reduce the emissions of amine to the air. Control of the water balance in the solvent loop is successfully achieved by changing the washing water temperature. In previous publications regarding CO 2 capture pilot plants, the regulation of the water balance always required a water make-up flow which appears here as unnecessary. Rejection of disturbances and different load reduction scenarios are tested to confirm the efficiency of this strategy. Potential operational problems of this control strategy are identified and solved.

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Optimum design and control of amine scrubbing in response to electricity and CO2 prices

Cited by 23 publications

References 7 publications

Valuing Responsive Operation of Post-combustion CCS Power Plants in Low Carbon Electricity Markets

Valuing Responsive Operation of Post-combustion CCS Power Plants in Low Carbon Electricity Markets

Selection and design of post-combustion CO2 capture process for 600 MW natural gas fueled thermal power plant based on operability

Dynamic modelling and control of a pilot plant for post-combustion CO2 capture

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