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:
Mar. 31, 1981
Filed:
Aug. 30, 1979
Wouter C Van Zijll Langhout, The Hague, NL;
Abraham A Pegels, The Hague, NL;
Joannes B Wijffels, The Hague, NL;
Shell Oil Company, Houston, TX (US);
Abstract
A hydroconversion process for heavy hydrocarbon oil and reactor system having a series of closed reactor vessels containing substantially fixed catalyst beds in flow communication with each of one catalyst-supply conduit system and one catalyst-removal conduit system, both of said conduit systems communicating with each reactor in said series of reactor vessels, via separate valve means, whereby each reactor can be separately connected or disconnected to flow communication with each of said conduit systems and whereby process-deactivated catalyst present in each reactor is continuously or periodically replaced by fresh catalyst as a slurry in oil via said conduit systems.