Drying characteristics of bean-curd refuse

Drying characteristics of bean-curd refuse were investigated using a thermo-gravimetric analyzer in order to determine the drying rate. Drying temperature and the physical sample size were the controlled experimental variables. The drying mechanism of bean-curd refuse was found to closely follow the unreacted core model that considered the zero order on gas reactant concentration and a solid particle of unchanging size. The drying reaction step was found to be the dominant factor in the drying mechanism. The activation energy of the drying rate was 21.25 kJ/g mol. The following empirical correlation was proposed for the fractional conversion of dryingt=4.644×106Rp2.628eE/RT{1−(1−X)1/3}.