| 1. A process for desulfurizing and denitrogenating a distillate feedstock to produce a refinery transportation fuel or blending
components for a refinery transportation fuel wherein the feedstock contains sulfur-containing and nitrogen-containing organic
impurities which process comprises:
(a) contacting the feedstock with an oxidizing gas consisting of the oxygen in oxygen-depleted air having an oxygen content
of at least 0.01 percent by volume in an oxidation zone at oxidation conditions in the presence of a heterogeneous oxidation
catalyst comprising a zeolitic material TIQ6 to oxidize a portion of the sulfur-containing organic impurities with oxygen
to form directly sulfur dioxide and sulfur trioxide and to convert another portion of the sulfur-containing and nitrogen-containing
organic impurities to oxidized sulfur-containing and nitrogen-containing organic compounds, and
(b) separating a portion of the oxidized sulfur-containing and nitrogen-containing organic compounds from the oxidation zone
effluent to recover a distillate effluent having a TAN number less that 0.5 mg KOH and a reduced amount of oxidized sulfur-containing
and nitrogen-containing organic impurities.
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