Power generation from biomass in a small CFBC plant compared with biomass co-fired with coal in a large CFBC

D McIlveen-Wright, S Rezvani, Y Huang, NJ Hewitt

Research output: Contribution to journalArticle

Abstract

which is not intermittent, location-dependent or very difficult to store. If grown sustainably, biomass can be considered to be CO 2 neutral. The use of biomass for power generation is also considered to be important in increasing the electricity output from renewable energy sources. However, power plants dedicated to the use of biomass fuel are not in widespread use and the acceptance of this fuel and development of the infrastructure for biomass production and transportation remain in their infancy. If small ratios of biomass can be co-fired with coal in large-scale conventional power plants, without significant technical, environmental or economic penalties, it could lead to a greater demand for biomass and so stimulate the industry. In this study a 80 MWth Circulating Fluidised Bed Combustion (CFBC) plant, fuelled by biomass only, and a large-scale 1000 MWth CFBC, co-fired with coal and 8% biomass, and the same large CFBC system, fired only with coal, are modelled using the ECLIPSE process simulation package and their technical, environmental and economic properties analysed and compared. The co-firing of biomass with coal was found to have little effect on the large-scale CFBC system, when a small ratio of biomass is used. The large scale system was found to have higher efficiency, lower CO2 emissions and lower break- even electricity selling price than the small biomass-fuelled CFBC. Co-firing of biomass with coal could be a promising way of promoting the production, use and acceptance of biomass as a fuel in electricity generation.
LanguageEnglish
Pages143-150
JournalInternational Journal of Ambient Energy
Volume28
Issue number3
Publication statusPublished - Jul 2007

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@article{396f97c42bfe4d5f9798caa692e5362a,
title = "Power generation from biomass in a small CFBC plant compared with biomass co-fired with coal in a large CFBC",
abstract = "which is not intermittent, location-dependent or very difficult to store. If grown sustainably, biomass can be considered to be CO 2 neutral. The use of biomass for power generation is also considered to be important in increasing the electricity output from renewable energy sources. However, power plants dedicated to the use of biomass fuel are not in widespread use and the acceptance of this fuel and development of the infrastructure for biomass production and transportation remain in their infancy. If small ratios of biomass can be co-fired with coal in large-scale conventional power plants, without significant technical, environmental or economic penalties, it could lead to a greater demand for biomass and so stimulate the industry. In this study a 80 MWth Circulating Fluidised Bed Combustion (CFBC) plant, fuelled by biomass only, and a large-scale 1000 MWth CFBC, co-fired with coal and 8{\%} biomass, and the same large CFBC system, fired only with coal, are modelled using the ECLIPSE process simulation package and their technical, environmental and economic properties analysed and compared. The co-firing of biomass with coal was found to have little effect on the large-scale CFBC system, when a small ratio of biomass is used. The large scale system was found to have higher efficiency, lower CO2 emissions and lower break- even electricity selling price than the small biomass-fuelled CFBC. Co-firing of biomass with coal could be a promising way of promoting the production, use and acceptance of biomass as a fuel in electricity generation.",
author = "D McIlveen-Wright and S Rezvani and Y Huang and NJ Hewitt",
note = "Reference text: 1. Hein, KRG and Bemtgen, JM, “EU clean coal technology – co-combustion of coal and biomass”, Fuel Processing Technology, 54, (1998), 159-169. 2. Benetto, E, Popovici, E-C, Rousseaux, P and Blondin, J, “Life Cycel Assessment of Fossil CO2 Emissions Reduction Scenarios in Coal-Biomass Based Electricity Production”, Energy Convers. Mgmt., 45, (2004), 3053-3074. 3. Pedersen, LS, Nielsen, HP, Kiil, S, Hansen, LA, Dam-Johansen, K, Kildsig, F, Chrstiensen, J and Jespersen, P, “Full scale co-firing of straw and coal”, Fuel, 75, (1996), 1584-1590. 4. Spliethoff, H, Scheuer, W, and Hein, KRG, “Effect of co-combustion of sewage sludge and biomass on emissions and heavy metal behaviour”, Proc. Saf. Environ. Prot., 78, (2000), 33-39. 5. Biagnini, E, Lippi, F, Petarca, L and Tiognotti, L, “Devolatilization rate of biomasses and coal-biomass blends: an experimental investigation”, Fuel, 81, (2002), 1041-1050. 6. McIlveen-Wright DR, Huang Y, Rezvani S and Wang Y, “A technical and environmental analysis of co-combustion of coal and biomass in fluidised bed technologies”, Fuel, 86, (2007), pp 2032-2042. 7. McIlveen-Wright DR, McMullan, JT and Williams BC, “The Economics of Reducing Carbon Dioxide Emissions by the Use of Biomass Co-Combustion”, Proceedings of the Seventh International Conference on Energy for a Clean Environment – ‘Clean Air 2003’, 7-10 July 2003, Calouste Gulbenkian Foundation, Lisbon, Paper 16.1. 8. Williams BC and McMullan JT, “Techno-economic analysis of fuel conversion and power generation systems - the development of a portable chemical process simulator with capital cost and economic performance analysis capabilities”, Int. J. Energy Research , 20, (1996). pp.125-142.",
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Power generation from biomass in a small CFBC plant compared with biomass co-fired with coal in a large CFBC. / McIlveen-Wright, D; Rezvani, S; Huang, Y; Hewitt, NJ.

In: International Journal of Ambient Energy, Vol. 28, No. 3, 07.2007, p. 143-150.

Research output: Contribution to journalArticle

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N1 - Reference text: 1. Hein, KRG and Bemtgen, JM, “EU clean coal technology – co-combustion of coal and biomass”, Fuel Processing Technology, 54, (1998), 159-169. 2. Benetto, E, Popovici, E-C, Rousseaux, P and Blondin, J, “Life Cycel Assessment of Fossil CO2 Emissions Reduction Scenarios in Coal-Biomass Based Electricity Production”, Energy Convers. Mgmt., 45, (2004), 3053-3074. 3. Pedersen, LS, Nielsen, HP, Kiil, S, Hansen, LA, Dam-Johansen, K, Kildsig, F, Chrstiensen, J and Jespersen, P, “Full scale co-firing of straw and coal”, Fuel, 75, (1996), 1584-1590. 4. Spliethoff, H, Scheuer, W, and Hein, KRG, “Effect of co-combustion of sewage sludge and biomass on emissions and heavy metal behaviour”, Proc. Saf. Environ. Prot., 78, (2000), 33-39. 5. Biagnini, E, Lippi, F, Petarca, L and Tiognotti, L, “Devolatilization rate of biomasses and coal-biomass blends: an experimental investigation”, Fuel, 81, (2002), 1041-1050. 6. McIlveen-Wright DR, Huang Y, Rezvani S and Wang Y, “A technical and environmental analysis of co-combustion of coal and biomass in fluidised bed technologies”, Fuel, 86, (2007), pp 2032-2042. 7. McIlveen-Wright DR, McMullan, JT and Williams BC, “The Economics of Reducing Carbon Dioxide Emissions by the Use of Biomass Co-Combustion”, Proceedings of the Seventh International Conference on Energy for a Clean Environment – ‘Clean Air 2003’, 7-10 July 2003, Calouste Gulbenkian Foundation, Lisbon, Paper 16.1. 8. Williams BC and McMullan JT, “Techno-economic analysis of fuel conversion and power generation systems - the development of a portable chemical process simulator with capital cost and economic performance analysis capabilities”, Int. J. Energy Research , 20, (1996). pp.125-142.

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N2 - which is not intermittent, location-dependent or very difficult to store. If grown sustainably, biomass can be considered to be CO 2 neutral. The use of biomass for power generation is also considered to be important in increasing the electricity output from renewable energy sources. However, power plants dedicated to the use of biomass fuel are not in widespread use and the acceptance of this fuel and development of the infrastructure for biomass production and transportation remain in their infancy. If small ratios of biomass can be co-fired with coal in large-scale conventional power plants, without significant technical, environmental or economic penalties, it could lead to a greater demand for biomass and so stimulate the industry. In this study a 80 MWth Circulating Fluidised Bed Combustion (CFBC) plant, fuelled by biomass only, and a large-scale 1000 MWth CFBC, co-fired with coal and 8% biomass, and the same large CFBC system, fired only with coal, are modelled using the ECLIPSE process simulation package and their technical, environmental and economic properties analysed and compared. The co-firing of biomass with coal was found to have little effect on the large-scale CFBC system, when a small ratio of biomass is used. The large scale system was found to have higher efficiency, lower CO2 emissions and lower break- even electricity selling price than the small biomass-fuelled CFBC. Co-firing of biomass with coal could be a promising way of promoting the production, use and acceptance of biomass as a fuel in electricity generation.

AB - which is not intermittent, location-dependent or very difficult to store. If grown sustainably, biomass can be considered to be CO 2 neutral. The use of biomass for power generation is also considered to be important in increasing the electricity output from renewable energy sources. However, power plants dedicated to the use of biomass fuel are not in widespread use and the acceptance of this fuel and development of the infrastructure for biomass production and transportation remain in their infancy. If small ratios of biomass can be co-fired with coal in large-scale conventional power plants, without significant technical, environmental or economic penalties, it could lead to a greater demand for biomass and so stimulate the industry. In this study a 80 MWth Circulating Fluidised Bed Combustion (CFBC) plant, fuelled by biomass only, and a large-scale 1000 MWth CFBC, co-fired with coal and 8% biomass, and the same large CFBC system, fired only with coal, are modelled using the ECLIPSE process simulation package and their technical, environmental and economic properties analysed and compared. The co-firing of biomass with coal was found to have little effect on the large-scale CFBC system, when a small ratio of biomass is used. The large scale system was found to have higher efficiency, lower CO2 emissions and lower break- even electricity selling price than the small biomass-fuelled CFBC. Co-firing of biomass with coal could be a promising way of promoting the production, use and acceptance of biomass as a fuel in electricity generation.

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