Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And group viii containing
Reexamination Certificate
2005-09-16
2008-08-05
Wood, Elizabeth D. (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And group viii containing
C502S085000, C502S240000, C502S245000
Reexamination Certificate
active
07407909
ABSTRACT:
A method of ex-situ activation and dry passivation of supported noble metal catalysts including the steps of reducing in the presence of hydrogen and dry passivation by cooling in an inert atmosphere and exposing to air or by filling the pores of the catalyst with a low sulfur oil before exposing to air.
REFERENCES:
patent: 4372841 (1983-02-01), Stuntz et al.
patent: 2004/0200758 (2004-10-01), Yang et al.
Beeckman Jean W.
Borghard William G.
Hantzer Sylvain
McCarthy Stephen J.
Exxonmobil Research and Engineering Company
Purwin Paul E.
Wood Elizabeth D.
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