Production Paths to Xylitol

Both catalytic and biotechnological processes consist of three major sections. They include  

The thermodynamic model nsed is the nonrandom two liquid (NRTL), which can be used to describe vapor-liquid and liqnid-liquid equilibrium of strongly nonideal solutions. The NRTL model can handle any combination of polar and nonpolar compounds, up to very strong nonideality. In addition, many parameters for xylitol pure component were not available in the databanks of Aspen Plus and had to be acquired from the literature and from regression of experimental data (Table 12.1). 

---