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:
Jul. 09, 2002
Filed:
Dec. 30, 1994
Tai-Sheng Chou, Pennington, NJ (US);
Nai Yuen Chen, Titusville, 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 ammonia vapor are used to control the operation of a hydrocracker or catalytic dewaxer. Catalyst activity and selectivity may be controlled by addition of the base to the feed, for example, to control the balance between isomerization and hydrocracking in an operation using a zeolite beta catalyst. Runaway conditions may be controlled by the addition of nitrogenous compounds to regulate the temperature profile within the reactor.