Promoted slurryability of petroleum coke–water slurry by using black liquor as an additive

The purpose of this paper is to prepare the petroleum coke–water slurry with a maximal coke mass fraction and the superior slurry natures using black liquor as an additive. The variations of rheological properties, contact angle, fluidity, stability and zeta potential of the coke–water slurry with different black liquor dosages were investigated. It was observed that the addition of a black liquor dosage around 1.0 wt.% of the petroleum coke remarkably improved the rheological properties, fluidity and stability of the slurry, and the slurry could hold a mass of petroleum coke as high as 70 wt.%, with the superior apparent viscosity, fluidity and stability available for practical utilization.