Deep desulfurization of FCC gasoline at low temperatures to maxi

Details Deep desulfurization of FCC gasoline at low temperatures to maxi Deep desulfurization of FCC gasoline at low temperatures to maxi

1998-11-16

2000-03-28

Myers, Helane

Mineral oils: processes and products

Refining

Sulfur removal

208216R, 208143, 208144, C10G 4504

Patent

active

060427191

ABSTRACT:
Low sulfur gasoline of relatively high octane-barrel value is produced from cracked, sulfur containing olefinic naphthas by hydrodesulfurization at low temperature and low space velocity over either a conventional catalyst, such as CoMo/Al.sub.2 O.sub.3, or a dual functional catalyst, such as CoMo ZSM-5/Al.sub.2 O.sub.3. This approach also minimizes the olefins/hydrogen sulfide re-combination frequently observed at high temperature. The process produces a gasoline having a reduced sulfur content with a less than 5% change in motor octane number and a less than 10% change in research octane number.

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