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, 1992
Filed:
Dec. 05, 1988
Nai Yuen Chen, Titusville, NJ (US);
Tai-Sheng Chou, Pennington, NJ (US);
Grant G Karsner, Voorhees Township, NJ (US);
Clinton R Kennedy, Westchester, PA (US);
Rene B LaPierre, Medford, NJ (US);
Melcon G Melconian, Princeton, NJ (US);
Richard J Quann, Moorestown, NJ (US);
Stephen S Wong, Medford, NJ (US);
Mobil Oil Corporation, Fairfax, VA (US);
Abstract
Nitrogenous compounds especially bases such as amines are used to control the operation of a hydrocracker. Catalyst activity and selectivity may be controlled by addition of the base to the feed, for example, to control the balance between isomerization and conversion in an operation using a zeolite beta catalyst. Runaway conditions may be controlled by the addition of nitrogenous compounds and if they are added at intermediate points along the length of the reactor, the temperature profile within the reactor can be effectively regulated.