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Patent Searching and Data


Title:
MIDDLE DISTILLATE SELECTIVE HYDROCRACKING PROCESS
Document Type and Number:
WIPO Patent Application WO2003039747
Kind Code:
A3
Abstract:
Increased yields of middle distillate products are obtained in a hydrocracking process by the use of a catalyst containing a Beta zeolite which has been hydrothermally treated to adjust the distribution of relatively weak and strong acid sites. The number of strong acid sites is reduced, preferably by steaming at a temperature above 750 DEG C (1382 DEG F) for at least one hour, with the acidity distribution being measured by pyridine IR adsorption values taken at 150 DEG C (302 DEG F), and 300 DEG C (572 DEG F), and 450 DEG C (842 DEG F).

Inventors:
BAUER LORENZ J (US)
Application Number:
PCT/US2002/035690
Publication Date:
February 12, 2004
Filing Date:
November 06, 2002
Export Citation:
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Assignee:
UOP LLC (US)
BAUER LORENZ J (US)
International Classes:
B01J29/70; B01J29/78; B01J37/10; C10G47/16; C10G47/18; C10G47/20; B01J21/12; (IPC1-7): B01J29/70; B01J29/78; B01J37/10; C10G47/20
Foreign References:
EP0955093A11999-11-10
US5833840A1998-11-10
US5866744A1999-02-02
US3923641A1975-12-02
US5384296A1995-01-24
US5128024A1992-07-07
US4820402A1989-04-11
US4911823A1990-03-27
Other References:
DATABASE WPI Section Ch Week 200001, Derwent World Patents Index; Class H06, AN 1999-348058, XP002237545
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