| 摘要 |
A process is disclosed for the conversion of mercaptan compounds in a petroleum distillate which comprises contacting the petroleum distillate with caustic possessing a pH of from about 8 to a pH of about 10 to extract naphthenic acids, passing the naphthenic acid-free petroleum distillate to a charcoal bed to extract catalyst-toxin precursors and treating the resultant substantially toxin-precursor free petroleum distillate with an oxygen-containing gas atmosphere in the presence of a catalyst comprising a metal phthalocyanine compound dispersed on a solid support in a treatment medium possessing a pH of from about 9 to a pH of about 14.
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