B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
196/131, 252/40,
B01J 35/02 (2006.01) B01J 23/88 (2006.01) C10G 45/04 (2006.01) C10G 45/08 (2006.01) B01J 23/24 (2006.01) B01J 23/74 (2006.01) B01J 23/85 (2006.01)
Patent
CA 1212370
SHAPED CATALYST PARTICLE FOR USE IN HYDROPROCESSING OF PETROLEUM OILS ABSTRACT OF THE INVENTION Petroleum-derived feedstocks are treated at elevated temperatures and pressures in the presence of hydrogen and in contact with a bed of porous catalytic particles. In accordance with the invention, each of the catalytic particles is specially shaped as a cylinder of polylobate cross-section having bluntly rounded, concave, interlobular interstices and in conformity with a selected combination of values of three defining parameters. The particle shape is further characterized as being substantially straight-sided and as having a geometric surface-to-volume ratio in the range of about 40 to about 95 in 2/in3. When the catalyst particle cross-section is selected to be circumscribed by a rectangle, the shorter side of the rectangle is about 70% as long as the longer side of the rectangle for all preferred combina- tions of values of the defining radial parameters. Further, when the entire catalyst particle is circumscribed by a right circular cylinder of the same length as the particle, the particle itself is in contact with the cylinder along three longitudinal elements and occupies about 55% of the volume of the cylinder.
456129
Katalco Corporation
Smart & Biggar
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