No.21 Coking Behavior of Oil Sand Bitumen in Supercritical Water Flow

Abstract

Canadian oil sand bitumen was treated at 440℃ and pressures of 10, 25, and 30 MPs using a continuous stirred-tank reactor to examine its coking behavior in supercritical water flow. The coke yields at those conditions were 11.3, 12.4, and 9.7 wt%, respectively. At 30 MPa, the conversion was the highest, the coke showed the highest aromaticity, and the liquid product was the richest in heavier component suggesting that at this pressure the coking of bitumen processed in the most highly dispersed state.