This work focuses on the techno-economic assessment of bituminous coal fired sub- and super-critical pulverised fuel boilers from an oxyfuel based CO2 capture point of view. At the initial stage, two conventional power plants with a nominal power output of above 600 MWe based on the above steam cycles are designed, simulated and optimised. Built upon these technologies, CO2 capture facilities are incorporated within the base plants resulting in a nominal power output of 500 MWe. In this manner, some sensible heat generated in the air separation unit and the CO2 capture train can be redirected to the steam cycle resulting in a higher plant efficiency. The simulation results of conventional sub- and super-critical plants are compared with their CO2 capture counterparts to disclose the effect of sequestration on the overall system performance attributes. This systematic approach allows the investigation of the effects of the CO2 capture on both cycles. In the literature, super-critical plants are often considered for a CO2 capture option. These, however, are not based on a systematic evaluation of these technologies and concentrate mainly on one or two key features. In this work several techno-economic plant attributes such as the fuel consumptions, the utility usages, the plant performance parameters as well as the specific CO2 generation and capture rates are calculated and weighed against each other. Finally, an economic evaluation of the system is conducted along with sensitivity analyses in connection with some key features such as discounted cash flow rates, capital investments and plant efficiencies as well as fuel and operating costs.
Bibliographical noteReference text:  McMullan JT, Williams BC, et al. Techno-economic assessment studies of fassil fuel and fuel wood power generation technologies, R&D in clean coal technology, JOULE II Programme, European Commission, 1995.
 McCahey S, Campbell PE, McIlveen-Wright, et al. Performance prediction in advanced pulverised coal fired utility boilers. Techno-economic Studies, EC, vol. IV, 1999. p. 539–60.
 Boyd RK, Wagner C. Application of successes in coal-based generation in developed countries to global CO2 emissions reduction. In: 19th world energy congress, Sydney, Australia, September 2004.
 DTI best practice brochure, Supercritical boiler technology at Hemweg power station, March 2001. <http://www.dti.gov.uk/files/file17969.pdf>.
 DTI Cleaner Coal Technology Programme, Technology Risk Insurance for Advanced Cleaner Coal Technology, March 2000. <http://www.dti.gov.uk/files/file20015.pdf>.
 The Royal Academy of Engineering, The Costs of Generating Electricity, March 2004. ISBN 1-903496-11-X.
 A.R. Smith and J. Klosek, A review of air separation technologies and their integration with energy conversion processes, Fuel Process Technol vol. 70 (2001), pp. 115–134. Article | PDF (438 K) | View Record in Scopus | Cited By in Scopus (37)
 Krishnamurthy KR, Acharya D. Development of a high temperature oxygen generation process and its application to oxyfuel combustion power plant with carbon dioxide capture. In: 22nd annual international, Pittsburgh coal conference, Pittsburgh, PA, USA, September 11–14, 2006.
 R. Bredesen, K. Jordal and O. Bolland, High-temperature membranes in power generation with CO2 capture, Chem Eng Process 43 (2004), pp. 1129–1158. Article | PDF (977 K) | View Record in Scopus | Cited By in Scopus (111)
 Haines MR, Skinner GF, Maunder AD. Rapid assessment of novel CO2 capturing power plants. In: IEA greenhouse gas R&D programme, Cheltenham, UK, Gas Consult, Reading, UK, presented at the seventh international conference on greenhouse gas control technologies (GHGT-7), Vancouver, Canada, 2004.
 Stromberg L. A future “CO2 free” power plant for coal technology and economics. Vattenfall AB Group Function Strategy, the annual fall meeting of the German Physical Society, Bad Honnef, Berlin/Stockhom, October 21–22, 2004.
 J.R. Gibbins and R.I. Crane, Preliminary assessment of electricity costs for existing pulverized fuel plant retrofitted with an advanced supercritical boiler and turbine and solvent CO2 capture, P I Mech Eng A – J Pow 218 (2004), pp. 551–555. Full Text via CrossRef | View Record in Scopus | Cited By in Scopus (1)
 Allam RJ, Higginbotham P, White V. The use of oxygen in CO2 efficient power generation. In: XXI IIR international congress of refrigeration, Washington, DC, USA, August 17–22, 2003.
 Dillon DJ, Panesar RS, et al. Oxy-combustion processes for CO2 capture from advanced supercritical PF and NGCC power plant. In: Proceedings of the seventh international conference on greenhouse gas control technologies. Volume 1: Peer-reviewed papers and plenary presentations, Vancouver, BC, September 5–9, 2004.
 Jordal K, Anheden M, et al. Oxyfuel combustion for coal-fired power generation with CO2 capture – opportunities and challenges. In: Seventh international conference on greenhouse gas control technologies, Vancouver, 2004.
 K. Andersson and F. Johnsson, Process evaluation of an 865 MWe lignite fired O2/CO2 power plant, Energy Convers Manage 47 (18–19) (2006), pp. 3487–3498. Article | PDF (199 K) | View Record in Scopus | Cited By in Scopus (31)
 Andersson K, Johnsson F, Stromberg L. An 865 MWe lignite-fired power plant with CO2 capture – a technical feasibility study. In: VGB conference power plants in competition – technology, operation and environment, Cologne, March 2003.
 IEAGHG, Pipeline transmission of CO2 and energy, Woodhill engineering consults. Report number: PH 4/6, March 2002.
 O. Skovholt, CO2 transportation system, Energy Convers Manage 34 (1993), pp. 1095–1103. Abstract | PDF (541 K) | View Record in Scopus | Cited By in Scopus (32)
 Hendriks C, Graus W, van Bergen F. Global carbon dioxide storage potential and costs, Ecofys/TNO-NITG Report, 2002.
 Hendriks C, Wildenborg AFB, et al. Costs of carbon dioxide removal by underground storage. In: GHGT-5: proceedings of the fifth international conference on greenhouse gas control technologies, Cairns, Australia, 13–16 August 2000.
 Gupta NJ, Smith B, et al. Engineering and economic assessment of CO2 sequestration in saline reservoirs. In: GHGT-5: proceedings of the fifth international conference on greenhouse gas control technologies, Cairns, Australia, 13–16 August 2000.
 R.L. Cornelissen and G.G. Hirs, Exergy analysis of cryogenic air separation, Energy Convers Manage 39 (16–18) (1998), pp. 1821–1826.