SYNTHESIS, CHARACTERIZATION ANDEVALUATION OF NOBLE METALPHOSPHIDE HYDRODESULFURIZATIONCATALYSTS

摘要

The high impurity levels in heavy and unconventional crude oils present major challenges to the petroleum industry at a time that environmental regulations are dramatically lowering allowable sulfur levels in transportation fuels. Metal phosphides, particularly Ni2P/SiO2, have been observed to exhibit high hydrodesulftirization (HDS) activities.