Maintaining a neutral water balance in a 450MWe NGCC-CCS power system with post-combustion carbon dioxide capture aimed at offshore operation

Kvamsdal, Hanne M.; Hetland, Jens; Haugen, Geir; Svendsen, Hallvard F.; Major, Fredrik; Kårstad, Vemund; Tjellander, Göran

doi:10.1016/j.ijggc.2010.01.002

Cited by 50 publications

(40 citation statements)

References 7 publications

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“…It plays a major role in the water balance in the absorber (Kvamsdal et al, 2010), and therefore influences the performance of the absorber. It also has an impact on the temperature profile of the absorber since the exothermic nature of the absorption of CO 2 into the solvent results in water evaporation from the solvent.…”

Section: Process Analysismentioning

confidence: 99%

Dynamic modelling, validation and analysis of post-combustion chemical absorption CO2 capture plant

Biliyok

Lawal

Wang

et al. 2012

International Journal of Greenhouse Gas Control

108

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Section: Process Analysismentioning

confidence: 99%

Dynamic modelling, validation and analysis of post-combustion chemical absorption CO2 capture plant

Biliyok

Lawal

Wang

et al. 2012

International Journal of Greenhouse Gas Control

108

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“…Consumed exergy depends on the gas consumption specified in Table 4. The exergy efficiency for the overall plant has been calculated for the two cases by using Equation (13). Table 6 shows the results of the overall performance of the offshore platform.…”

Section: Resultsmentioning

confidence: 99%

“…It was concluded that the gas separation system is accountable for nine percentage points of efficiency (fuel penalty) reducing the net power capacity to 450 MW e (net electric efficiency: 45%). Kvamsdal et al [13] developed a study on minimizing the process water consumption in a natural gasfired power plant with post-combustion CO 2 capture process aimed at offshore operations. The results showed that the neutral water balance is achieved by controlling the temperature in the top part of the absorber and minimizing the temperature variations in the absorber.…”

Section: Introductionmentioning

confidence: 99%

Exergy analysis of offshore primary petroleum processing plant with CO2 capture

Sánchez

Oliveira

2015

Energy

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“…The exhaust flue gas is therefore typically cooled down by means of a direct contact cooler until it reaches an optimal temperature, which has been reported to be around 35 ºC [1] and 40 ºC [2,3,4]. Temperatures as high as 50 ºC have also been presented in pilot plant data [5,6]. A large amount of process and cooling water is, however, required and this fact might constitute a limitation for the full scale deployment of post-combustion capture, particularly in jurisdictions with an increasingly restricted access to cooling water.…”

Section: Introductionmentioning

confidence: 99%

On the use of Rotary Gas/gas Heat Exchangers as a Novel Integration Option for Heat and Water Management in Exhaust Gas Recycling Gas Turbine Plants.

et al. 2014

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This work is a first-of-a-kind feasibility study investigating technology options with gas/gas rotary heat exchangers for the water management in the integration of Natural Gas Combined Cycle (NGCC) plants with post-combustion carbon capture, with and without exhaust gas recirculation (EGR). A range of configurations are examined for wet and dry cooling of the flue gas entering a postcombustion capture (PCC) absorption system, and regenerative heating of the CO2-depleted flue gas prior to the power plant stack. First, this work examines the addition of a gas/gas rotary heat exchanger to transfer heat from the exhaust gas entering the absorber into the CO2-depleted gas stream leaving the absorber. It then investigates the performance of a configuration with an additional air/gas rotary heater to further reduce exhaust flue gas temperature and water consumption, and, eventually, a more compact arrangement which combined the two heaters into a single gas/gas/air heater with a trisector configuration. A thermal performance analysis was conducted for each of the previous configurations, in order to evaluate the dimensions and the operational parameters of the heaters. By replacing the direct contact cooler traditionally used in PCC technology by a dry-cooling system, a significant reduction in the overall process water usage and cooling water consumption associated to the capture plant can be achieved. The second part of this work examines the use of a similar system for NGCC plant with EGR. This strategy increases CO2 concentration in gas turbine exhaust gases and reduce O2 induced solvent degradation. In addition to the heat and water balance around the absorber column of the PCC process, an important aspect of EGR is that recirculated gas stream temperature should be as low as possible so that the gas turbine performance is not compromised. The performance of the rotary heat exchanger configurations is analysed at different recirculation ratios.

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Maintaining a neutral water balance in a 450MWe NGCC-CCS power system with post-combustion carbon dioxide capture aimed at offshore operation

Cited by 50 publications

References 7 publications

Dynamic modelling, validation and analysis of post-combustion chemical absorption CO2 capture plant

Dynamic modelling, validation and analysis of post-combustion chemical absorption CO2 capture plant

Exergy analysis of offshore primary petroleum processing plant with CO2 capture

On the use of Rotary Gas/gas Heat Exchangers as a Novel Integration Option for Heat and Water Management in Exhaust Gas Recycling Gas Turbine Plants.

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