Investigation of influence of coal properties on dense-phase pneumatic conveying at high pressure

► The shear tests of different pulverized coals were investigated to obtain effect of powder properties and types on flow characteristics. ► Pulverized coals at high pressure were conveyed to study effect of operated parameters and powder properties on mass flow rate, solid-gas ratio and pressure drop. ► Results of conveying experiment and shear tests were linked to analyze the flow characteristics of pulverized coal.