Appeal No. 2000-1808
Application No. 07/855,016
APPEALED SUBJECT MATTER
Claim 1 is representative of the subject matter on appeal
and reads as follows:
1. A process for reforming a petroleum hydrocarbon
feed stream comprising contacting the stream under reforming
conditions with a catalyst which comprises a zeolite KL in
which the Zeolite crystals are cylindrical and have an
average cylinder wall length of 0.1 to 0.6 microns, and an
average cylinder wall length:diameter ratio of less than 0.5
and have microscopically flat basal planes, said Zeolite
being the crystallization product of a mixture comprising q
moles of water, a divalent cation, said divalent cation
present in said mixture and present at a level of up to 250
ppm, a source of m moles of K2O, a source of n moles of SiO2
and a source of p moles of AL2O3 where m:n is 0.2 to 0.35
and n:p is 15 to 160 and q:m is 45 to 70, which zeolite is
further impregnated with a metal hydrogenation-
dehydrogenation promotor, wherein the basal planes of said
cylindrical crystals are flatter than the basal planes of
crystals prepared from an otherwise identical synthesis
mixture which is free of said divalent cation.
PRIOR ART
In support of his rejections, the examiner relies on the
following prior art references:
Drehman et al. (Drehman) 3,883,418 May 13, 1975
Wortel 4,544,539 Oct. 1, 1985
Buss 4,645,586 Feb. 24, 1987
Ellig et al. (Ellig) 4,870,223 Sep. 26, 1989
Verduijn 5,491,119 Feb. 13, 1996
(filed June 30, 1992)1
1 The published PCT application corresponding to this patent
may be available as “prior art” under 35 U.S.C. § 102(a). Upon
return of this application, the examiner is advised to determine
whether the published PCT application, WO91/06367, is available
2
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