DESULFURIZATION OF A PREOXIDIZED OIL

• US 3,668,117 A
• Filed: 03/17/1970
• Issued: 06/06/1972
• Est. Priority Date: 03/17/1970
• Status: Expired due to Term

• Current Assignee: Jitendra A. Patel, Raymond F. Wilson, Reese A. Peck, Sheldon Herbstman
• Original Assignee: Jitendra A. Patel, Raymond F. Wilson, Reese A. Peck, Sheldon Herbstman
• Inventors: Patel, Jitendra A., Herbstman, Sheldon, Peck, Reese A., Wilson, Raymond F.
• Primary Examiner(s): Gantz, Delbert E.
• Assistant Examiner(s): Crasanakis, G. J.
• Application Number:
  US05/020,286
• Time in Patent Office: 812 Days
• Field of Search: 208/28R,231,240,249,189,193,201,203,204,222,229,228
• US Class Current: 208/228
• CPC Class Codes: C10G 45/26 Steam or water
• CPC Class Codes: C10G 67/12 including oxidation as the refining step in the absence of hydrogen

Abstract

A sulfur-containing oil is initially preoxidized with an oxidant, such as, an organic peroxide, an organic hydroperoxide, air or an organic peracid in the presence of a Group IV-B, Group V-B or VI-B metal catalyst, water is then added to the preoxidized oil and desulfurization is carried out with sodium oxide, potassium oxide or calcium oxide catalyst on an alumina support. Water is added to the oil prior to desulfurization at a concentration ranging from 1 to 20 percent by weight.

Claims

2. Process according to claim 1, wherein said oil is residual oil.

3. Process according to claim 1, wherein the oxidant is t-butyl hydroperoxide and said desulfurization catalyst is sodium oxide on alumina.