Hydroprocessing of a Maya Residue. Intrinsic Kinetics of Sulfur-, Nitrogen-, Nickel-, and Vanadium-removal Reactions

摘要

A residue from a Maya crude was processed in a hydrotreating unit with a continuous stirred tank reactor at high temperatures (375-415 deg. C) and hydrogen pressures (10-15 MPa). A commercial guard-bed demetalation catalyst Ni-Mo supported on γ-Al_2O_3 was used. In this paper, the intrinsic kinetics of the sulfur-, nitrogen-, nickel-, and vanadium-removal reactions are reported. The sulfur-removal reactions first-order kinetics, and the vanadium-removal reactions half-order kinetics.