Preparation and properties of oil-substituted fuel based on petroleum coke with biomass fermentation

Abstract

To improve the stability of petroleum coke water slurry (PCWS), bubble-PCWS based on biomass fermentation was researched in this paper. The results showed that the stability of bubble-PCWS improved as biomass dosage increased. The bubble-PCWS with yeast could reach a high solid concentration of 65 wt% and a perfect stability with water segregation rate being 0 wt% and pour out rate being more than 90 wt%, when the straw dosage was 3 wt%. The bubble-PCWS with activated sludge possessed good recoverability, but the solid concentration and the pour out rate obviously decreased as the sludge increased.