High conversion co-processing

In order to reduce the amount of low value residue products obtained in coprocessing coals and petroleum resids, a series of high severity coprocessing runs was carried out using a 1 kg/h bench-scale continuous stirred tank reactor unit. Different coal ranks including Rhenish brown coal (Germany), Illinois No. 6 coal (high-volatile bituminous) and Battle River coal (subbituminous) were reacted at relatively high severities with a petroleum resid (Amoco pipestill) and a heavy oil (Cold Lake vacuum bottoms). The experiments were performed between 430{degrees}C and 460{degrees}C and space velocities between 0.5 and 1 kg/h-L. The effect of process severity on yields and quality are discussed.