This article has been retracted at the request of the Authors.
This article bears substantial similarity to the authors' own earlier published paper: Development of a modeling approach to predict ash formation during co-firing of coal and biomass V. Doshi, H.B. Vuthaluru, R. Korbee, J.H.A. Kiel. Fuel Processing Technology, Volume 90, Issue 9, September 2009, Pages 1148–1156 DOI: http://dx.doi.org/10.1016/j.fuproc.2009.05.019.
The Authors deeply regret any inconvenience caused to the scientific community and are in the process of preparing a paper with new data.