Abstract
Experiments in a one barrel per day (1.84 cm3 /s) thermal hydrocracking pilot plant were conducted on topped (to 260°C) Athabasca bitumen, with emphasis on continuous runs at constant conditions for up to three week's duration to study reactor fouling. The reactor was 1.5 in. (3.8 cm) ID by 13 ft (4 m) high. Experiments were carried out at pressures from 1000 to 3500 psi (6900 to 24,100 kPa), temperatures from 450 to 470°C, and space velocities of 1 and 2 reactor volumes of feed per hour. The most successful runs, from the point of view of reducing reactor fouling, were at 460°C and 470°C and 3500 psi. Results are given and correlated on pitch conversion, distillate oil yield, hydrogen consumption, gas formation and other parameters for these runs. A comparison is made with published data on delayed coking and fluidized coking for bitumen treatment.
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