AAAR 35th Annual Conference October 17 - October 21, 2016 Oregon Convention Center Portland, Oregon, USA
Abstract View
On the Limits of Current Predictive Tools for an Efficient Control of Emissions from Agricultural Waste Combustion
Imara Ibarra, Gaizka Aragon, Enrique Rojas, David Sanz, Igor Gomez, Jesus Rodriguez-Maroto, CRISTINA GUTIERREZ-CANAS, University of the Basque Country, SPAIN
Abstract Number: 282 Working Group: Combustion
Abstract Mediterranean countries produce 95% of the total world olive oil with important environmental, social and economical implications. Decentralized MCP (medium scale of combustion boilers >1MWth) are of interest for logistic reasons and for its ability to fulfil the requirements of a number of applications, among them, electricity generation, domestic/residential heating and cooling, or heat/steam for industrial processes Until now, there was a lack of emission limit values for operations with a rated thermal input less than 50 MW. However, the MCP Directive, establishing limit values for both existing and new installations will have to be transposed by Member States by 19 December 2017.
In addition to the characteristic seasonality in supply, which leads to a traditional practice of blending with other fuels, there is a growing interest on “fuel engineering” to minimize corrosion and fouling, and to prevent atmospheric emissions.
However, this kind of practice can enhance the formation of submicronic aerosol (Joeller M. et al., 2007) concentrating a substantial amount of trace heavy metals. A user-friendly and cost-effective approach for these MCP could be based on predictive tools, such as chemical equilibrium modeling. These can also provide systematic information on the behavior of different fuels and could be further utilized to reduce or prevent ash-related issues. Therefore, this work focuses on the assessment of the ability of these tools to provide guidelines for minimizing operation problems, blending rules and estimating emission limits.
Aragon, G. et al (2015) Energy & Fuels 29, 2358-2371.
EU directive 2015/2193 On the limitation of emissions of certain pollutants into the air from medium combustion plants
Joeller M., et al (2007) Fuel Proc. Technol. 88, 1136-1147.