The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 1977
Filed:
Jul. 18, 1975
Angelo A Montagna, Monroeville, PA (US);
Gulf Research & Development Company, Pittsburgh, PA (US);
Abstract
A process comprising passing a residual oil through a plurality of hydrodesulfurization stages in series to produce a relatively low sulfur hydrodesulfurizer residual oil effluent. A portion of desulfurized oil flowing between stages is passed through a thermal cracking zone containing a packed bed of inert solids to produce middle distillates and a cracked residual oil which is relatively high in sulfur but which contains less than 7 weight percent pentane insolubles. Because of its low aromaticity, the relatively high sulfur cracked residual oil is compatible for blending with the relatively low sulfur hydrodesulfurizer residual oil effluent.