Abstract
ABSTRACTThe effects of five main ingredients (i.e. SiO2, Al2O3, Fe2O3, CaO and MgO) of coal ash on the stability of petroleum coke water slurry (PCWS) were investigated in this paper. The results showed that the stability of PCWS could be improved tremendously by the appearance of a small quantity of CaO in the PCWS, while the other 4 ashes had little impact. When the apparent viscosity was 1000 mPa·s, the PCWS with CaO dosage of 0.3 wt% would possess the solid concentration of 68.0%, the flow characteristic exponent of 0.78, and the water separation rate of 3.4%.
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