Appeal 2007-2549
Application 10/163,206
containing product stream, before cycling of the
zones from the alkylation to the regeneration mode
or vice versa, in order to prevent hydrogen from
being contacted with olefin, which would result in
the formation of unwanted alkanes [Specification
11:24 to 12:2].
B. Broekhoven
[13] Broekhoven discloses a process comprising (i) reacting an alkylatable
organic compound with an alkylation agent to form an alkylate in the
presence of a catalyst comprising a hydrogenating function and the
solid acid constituent and (ii) periodically regenerating the catalyst by
contacting the catalyst with hydrogen and a saturated hydrocarbon
(Broekhoven 3:11-16).
[14] Preferred alkylatable organic compounds are isoalkanes having 4-10
carbon atoms, e.g., isobutane, isopentane, isohexane or mixtures
thereof (Broekhoven 8:1-6).
[15] Preferred alkylation agents are olefins having 2-10 carbons, e.g.,
butene (Broekhoven 8:1-6).
[16] Preferred alkylate products are C5+ alkylates having a C9+ content of
less than 30 wt. % and a RON of 90 or higher (Broekhoven 13:7-22).
[17] "The alkylation of isobutane with butene or a mixture of butenes
constitutes an attractive embodiment of the process" (Broekhoven 8:4-
6)
[18] The Examiner found that the alkylation of isobutane with butene
produced a C8 alkane product (Answer 3, ¶ 2).
[19] Group VIII transition metals, e.g., platinum and palladium, are said to
provide suitable hydrogenating functions for the catalyst (Broekhoven
5:3-6)
5
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 Next
Last modified: September 9, 2013