Biomass integrated gasification-gas turbine (BIG-GT) technology offers the opportunity for efficient and environmentally sound power generation from biomass fuels. Since biomass is “carbon-neutral” it can be used in power generation equipment without contributing to the “greenhouse effect” if it is grown sustainably. The Brazilian BIG-GT initiative is one of a number of initiatives world-wide aimed at demonstrating, and thereby establishing, biomass as an energy resource for power production. The goal of the Brazilian BIG-GT project is to confirm the commercial viability of producing electricity from wood through the use of biomass-fueled integrated gasification combined-cycle (BIG-GT) technology. To fulfil this goal a 32 MWe eucalyptus-fueled demonstration power plant will be built in Brazil on the basis of a design made by TPS Termiska Processer AB (TPS). The first two phases of the project, which included experimental and engineering studies and the basic engineering of the plant, were completed in 1997. The next phase of the project, the construction and commissioning of the plant, is the recipient of a U.S. $35 million grant from the Global Environmental Facility (GEF) of the United Nations Development Program (UNDP), in addition to financing from the World Bank (WB). The plant will be built in Bahia, north-eastern Brazil. The customer of the plant is a consortium, SER—Sistemas de Energia Renova´vel, comprising of CHESF (Companhia Hidro Ele´trica do Sa˜o Francisco), a federally owned electricity generation and distribution company, Electrobras (Centrais Ele´tricas Brasileiras), a holding company comprising of the main Brazilian companies from the electric generation and distribution sector, and Shell Brasil. Start-up of the plant is scheduled for the year 2000. The plant will be based on a TPS designed atmospheric-pressure gasification/gas cleaning process. The product gas will be fired in a modified GE LM 2500 gas turbine. The gasification and gas cleaning process is based on the use of a circulating fluidized bed gasifier, secondary stage catalytic tar cracker and conventional cold filter and wet scrubbing technology. The feedstock to the plant will be mainly eucalyptus wood from a dedicated plantation which is harvested on a three-year cycle. This paper describes the background of the project leading up to the technology selection, the technology that will be employed in the plant and the outline of the economics of this “first-of-a-kind” plant. The progress made in establishing the organization and the formal framework (e.g., securing the electricity and fuel contracts) are also reported. Future projections of likely technological improvements and cost reductions, and their effect on the overall economics of an Nth plant, are presented.

Issue Section:
Gas Turbines: Coal, Biomass, and Alternative Fuels
Keywords:
wood, energy resources, bioenergy conversion, gas turbine power stations
Topics:
Biomass, Fuel gasification, Fuels, Gas turbines, Wood products, Energy generation, Power stations
1.
Shell Brazil, 1992, Phase I Final Report to the Global Environment Facility, Brazilian Biomass Power Generation Project BIG/GT, BRASCEP, CHESF, CIENTEC, CVRD, Electrobras, MCT do Brasil, Shell International Petroleum Ltd.
2.
Craig, K. R., Bain, R. L., and Overend, R. P., 1995, “Biomass Power Systems—Where are we, Where are we going and How to get there? The role of Gasification,” EPRI Conference on New Power Generation Technology, San Francisco, October 25–27, 1995, CA, USA.
3.
Trebbi
,
G.
,
1993
, “
Power Production Options from Biomass: The Vision of a Southern European Utility
,”
Bioresource Technology
,
46
, Nos.
1&2
, pp.
23
–
30
.
4.
Carpentieri, A. E., Larson, E. D., and Woods, J., 1992, “Prospects for Sustainable, Utility Scale, Biomass-Based Electricity Supply in Northeast Brazil,” Center for Energy and Environmental Studies, PU/CEES Report No. 270, Princeton University, Princeton, NJ, USA.
5.
Consonni, S., and Larson, E. D., 1994, “Biomass-Gasifier/Aeroderivative Gas Turbine Combined Cycles, Part A and B,” ASME Cogen Turbo Power’94, Oct. 25–27, 1994, Portland, OR.
6.
Larson, E. D., 1993, “Technology for Electricity and Fuels From Biomass,” Annual Review of Energy and the Environment, 18, pp. 567–630.
7.
Faaij, A. P. C., 1997, “Energy from Biomass and Waste,” thesis from Universiteit Utrecht, Facultiet Schiekunde, Utrecht, ISBN-90393-1592-2.
8.
Solantausta, Y., Bridgwater, T., and Beckman, D., 1996, “Electricity Production by Advanced Biomass Systems,” VTT research notes 1729, Technical Research Center of Finland, Espoo.
9.
Paterson, W., 1994, Power From Plants, The Royal Institute of International Affairs, Energy and Environmental Programme, Earthscan Publications Ltd. London.
10.
Ricardo J., Semedo, H., Johansson, T. B., and Larson, E. D., 1993, “Gas Turbine Power Generation From Gasified Wood,” Centro para a Conservacao de Energia. Lisboa, Portugal, June 30, 1993, study prepared for the EC Alternative Energy Programme, ALTERNER.
11.
Bodlund, B., and Bergman, J., 1993, Bioenergy in Sweden: Potential. Technology and Application Bioresource Technology, 46, No. 1&2, pp. 31–36.
12.
Elliott
,
P.
,
1993
, “
Biomass-Energy Overview in the Context of Brazilian Biomass-Power Demonstration
,”
Bioresource Technology
,
46
, No.
1&2
, pp.
13
–
23
.
13.
Kaltschmitt, M., et al., 1994, “Analysis and Co-ordination of the Activities Concerning Gasification of Biomass,” report from a Concerted Action within the EC Argoindustrial Research Program, Nov. 1977, contract AIR3-CT94-2284.
14.
Blackadder, W., Lundberg, H., Rensfelt, E., and Waldheim, L., 1992, “Heat and Power Production via Gasification in the Range 5–50 MWe,” Advances in Thermochemical Biomass Conversion, Interlaken, Switzerland, May 11–15, 1992.
15.
Rensfelt, E., 1977, “Atmospheric CFB Gasification—The Gre`ve Plant and Beyond,” International Conference on Gasification and Pyrolysis of Biomass. April 9–11, 1977, Stuttgart, Germany.
16.
Barducci, G., Daddi, P., Polzinetti, G., Ulivieri, P., Baldacci, A., Traniello, A., and Zeppi, C., 1994, “Use of Lean Gas From Sorghum Bagasse in the Cement Production,” 8th European Conference on Biomass for Energy and Environment, Agriculture and Industry, October 3–5, 1994, Vienna, Austria.
17.
Barducci, G., Daddi, P., Polzinetti, G., and Ulivieri, P., 1995, “Thermic and Electric Power Production and Use From Gasification of Biomass and RDF, Experience at CFBG Plant at Gre`ve-in-Chianti,” 2nd Biomass Conference of the Americas: Energy, Environment Agriculture and Industry, August 21–24, 1995, Portland, Oregon, USA.
18.
Barducci, G. L., Ulivieri, P., Polzinetti, G. C., Donati, A., and Repetto, F., 1996, “New Developments in Biomass Utilization for Electricity and Low Energy Gas Production on the Gasification Plant of Gre`ve-in-Chianti, Florence,” Developments in Thermochemical Biomass Conversion, Vol. 2, Bridgwater, A. V., and Boocock, D. G. B., eds.; and “Bioenergy 96—The Seventh National Bioenergy Conference,” Sept. 15–20, Nashville, TN.
19.
Pitcher, K., and Lundberg, H., 1995, “Wood Energy: The Development of a Gasification Plant Utilising Short Rotation Coppice,” Project ARBRE, Third International Wood Fuel Conference, October 9–15, 1995, Glasgow, Scotland.
20.
Elliott, P., and Booth, R., 1993, “Brazilian Biomass Power Demonstration Project,” special project brief, Shell International Petroleum Company, September.
21.
Elliott
,
P.
, and
Booth
,
R.
,
1996
, “
Biomass Energy for the Twenty-First Century. Commercial Demonstration of a Modern Power System Based on Gasification-Combined Cycle Technology
,”
Energy and Environment
,
7
, No.
2
, pp.
191
–
208
.
22.
Saaty, T. L., 1992, Decision Making for Leaders, ISBN 0-534-97959-9.
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