Initial evaluation of the impact of post-combustion capture of carbon dioxide on supercritical pulverised coal power plant part load performance

Dynamic simulation of MEA absorption process for CO2 capture from power plants

“…Therefore, the ability of the amine absorption process to operate within limits in the dynamic fashion need to be evaluated. Although studies have been developed to analyze the flexibility 1 of the power plants with CO 2 capture with respect to part load (Chalmers and Gibbins, 2007;Davison, 2007) and variation in CO 2 recovery (Alie et al, 2006), those studies were performed under steady-state conditions. That is, the dynamic performance of plant due to changes in time in the part load was not included in those studies.…”

“…The costs of electricity generation for coal-fired plants are higher than for gas-fired plant at low load factors due to higher fixed cost for coal-fired plants. Chalmers and Gibbins (2007) proposed to store the rich solvent and regenerate it when the electricity price is low in order to take advantage of varying electricity price. Solvent storage may be used at times of high demand (allowing the plant to generate additional revenues as a result of the high electricity prices associated with periods of high demand) by storing solvent and then regenerating additional solvent at times of lower demand when electricity prices are attractive.…”

Valuing power plant flexibility with CCS: the case of post-combustion capture retrofits

“…It is, therefore, suggested that as CO 2 prices increase it is likely that CO 2 capture will be more important to British coal-fired power plants for maintaining a reasonable number of operating hours than similar plants in Texas. No studies that consider other modes of operating flexibility for power plants with CO 2 capture within an electricity system simulation have been identified in the public domain. Gibbins and Crane (2004), Chalmers and Gibbins (2007) and Haines and Davison (2009) have, however, presented relatively simple plant-level screening analysis of the potential value of rich solvent storage in addition to capture plant bypass for power plants with post-combustion capture. Although this work was not particularly focussing on retrofitted plants, it is useful to given an initial indication of reasonable priorities for further work.…”

“…Section 4 updates and extends the first order technical characterisation of this option presented by Chalmers and Gibbins (2007). Section 5 then reports key results from techno-economic analysis, with a particular focus on understanding under what conditions solvent storage might be important.…”

Energy storage in the UK electrical network: Estimation of the scale and review of technology options

“…Chalmers at al [2006,2009], Chalmers & Gibbins [2007]. The best route for policy makers to encourage this flexibility in CCS generation is unclear and also requires consideration, but if CCS allows the continued use of F-storage, then it is critical that greater flexibility is designed from the outset.…”