METHOD FOR ESTIMATING CONTENT OF FINE PARTICLES IN SLURRY AND PROCESS FOR PRODUCING HYDROCARBON OIL

摘要

This method for estimating the content of fine particles in a slurry is a method for estimating the content of fine particles having a particle diameter of a given value or less in a slurry that comprises hydrocarbons comprising wax and solid particles dispersed in the hydrocarbons. The method is characterized in that a correlation between the visible-light transmittances of dispersions obtained by dispersing solid particles having a particle diameter of the given value or less in the hydrocarbons comprising wax, the transmittances being measured at a temperature at which the hydrocarbons are liquid, and the contents of the solid particles having a particle diameter of the given value or less is determined, and the content of fine particles having a particle diameter of the given value or less in the slurry is estimated, on the basis of the correlation, from the visible-light transmittance of the supernatant of the slurry that was allowed to stand still at that temperature.