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Hydrodesulfurization of Venezuelan Residual Fuel Oils.
NTIS: PB 203 666 :18 pages
The hydrodesulfurization characteristics of a Venezuelan topped crude oil and a Venezuelan crude oil were determined at temperatures from 740 deg to 850 deg f, pressures from 800 to 1,600 psig, and space velocities from 1.0 to 2.0 Vo/vc/hr. Kinetic calculations showed that under these conditions the desulfurization reaction was first order with respect to sulfur and had an average activation energy of 32.5 Kcal/mol. Catalyst life tests made at 750 deg f, with pressures of 800, 1,200, and 1,600 psig and space velocities of 1.0 and 1.25 Vo/vc/hr, showed that the decrease in the relative activity of the catalyst was a logarithmic function of time or volume of oil processed and the amount of vanadium deposited on the catalyst. Comparative tests made with residual fuels prepared from a Wilmington, California, crude oil and a Wyoming asphaltic crude oil showed that catalyst life may be extended by processing fuel oil with a low metal content, but it may be shortened by the presence of large amounts of asphalt in the feed.
IH; Report of Investigation;
NTIS Accession No.
NTIS: PB 203 666
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division