Minimum and terminal velocity in fluidization of coal gasification materials and coal blending of gasification under pressure

► Gasifier discharges of pilot and industrial demonstration plant are sampled. ► Investigate fluidized characteristics of large particles under pressure. ► Develop a correlation of minimum fluidization and terminal velocity at pressure. ► The relationship between particle size and Froude number under pressure is studied. ► Decreasing particle size along with increasing pressure may be fairly essential.