Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2012.2548.2554MokhlifNassir D.Al-KayiemHussain H.BaharomM.B.1220121224The wax crystallization in the solvent dewaxing is complicated
process since it involves multi components flow with phase change of dissolved
hydrocarbonates which solidified as wax crystals. In this study, an estimation
mathematical model of the real solvent dewaxing unit was implemented. The model
combined the energy balance equations and the mass-momentum balance in terms
of the population balance for the kinetics of the wax crystallization phenomena.
The transport equations were solved numerically to obtain the wax crystal size
distribution, wax volume fraction along the pipeline of the heat exchanger and
chiller in a solvent dewaxing process. Experimental measurements were conducted
using Differential Scanning Calorimeter to analysis the dissolved temperature,
onset crystallization temperature and the wax content. The results measurement
results were used as the main input parameters to the model for the Crystal
Size Distribution (CSD) prediction in Solvent Dewaxing. The developed numerical
model was proved to be capable to predict wax crystallization characteristics
for different operating conditions of such complex process.]]>Sequerira, A.,1994Thomas, R.L.,2008Taylor, R.J. and A.J. McCormack,1992Lian, G., S. Moore and L. Heeney,2006Benkhlifa, H., A.H. Amamou, G. Alvarez and D. Flick,2008Bessarabov, A.M., V.P. Meshalkin and B.E. Sel'Skii,1996Li, J., H. He, S. Alaamri and Y. Sul,2008Mokhlif, N.D. and H.H. Al-kayiem,2011Muralidhar, K. and T. Sundararajan,2003Lakhdar, M.B., R. Cerecero, G. Alvarez, J. Guilpart, D. Flick and A. Lallemand,2005Incropera, F.P.,2007Mullin, J.W.,2001Dirand, M., V. Chevallier, E. Provost, E. Bouroukba and D. Petitjean,1998Haulait-Pirson, M.C., G. Huys and E. Vanstraelen,1987Chen, J., J. Zhang and H. Li,2004