Title:
The Potential for Cofiring Eucalyptus in Coal Fired Thermal Power Plants in Brazil in the Stage of Rio Grande Do Sul
Author(s):
Hoffmann, B.S., Szklo, A., Schaeffer, R.
Document(s):
Paper
Abstract:
Brazil has favorable edaphoclimatic conditions for the cultivation of biomass for energy. On the other hand, the country plans to expand its thermal power park using fossil fuels, including coal. This paper investigates the potential of cofiring eucalyptus from energy forests in power plants based on Brazilian low rank coal from the main deposits in the South of Brazil. The technical limits of adding woody biomass to a fluidized bed boiler running on Brazilian coal is evaluated along with the availability of this wooden biomass in the south of Brazil. Findings indicate that ash behavior is not expected to represent a technical limit to cofiring. The restrictions for biomass availability were based on the economic viability of transport and land availability for plantations of high productivity. Results indicate that biomass should be available within a radius of around 120 km, which is equivalent to approximately 4,500,000 ha. Only 0.4% of this area would be required to feed a thermal plant of 600 MWe with 30% biomass. However, in the vicinity of the coalfield in the state of Rio Grande do Sul, the land availability for plantations of high productivity rates is restricted by agroclimatic conditions and environmental zoning, so that only 14% of the total area are available for forest plantations.
Keywords:
coal, co-firing, costs, eucalyptus, power generation, environmental limitations
Topic:
Biomass Resources
Subtopic:
Biomass potentials and biomass mobilisation
Event:
20th European Biomass Conference and Exhibition
Session:
1BV.1.26
Pages:
314 - 320
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-1BV.1.26
Price:
FREE
