Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And group iii or rare earth metal or lanthanide containing
Reexamination Certificate
2011-03-08
2011-03-08
Griffin, Walter D (Department: 1774)
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And group iii or rare earth metal or lanthanide containing
C502S065000, C502S079000
Reexamination Certificate
active
07902106
ABSTRACT:
The invention is a composition that is suitable for reducing sulfur species from products produced by petroleum refining processes, especially gasoline products produced by fluidized catalytic cracking (FCC) processes. The composition comprises zeolite, yttrium, and at least one element selected from the group consisting of zinc, magnesium and manganese, wherein the yttrium and element are present as cations. The yttrium and zinc are preferably present as cations that have been exchanged onto the zeolite. The zeolite is preferably a zeolite Y.
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Hu Ruizhong
Wormsbecher Richard Franklin
Cross Charles A.
Griffin Walter D
Robinson Renee
W. R. Grace & Co.,-Conn.
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