Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – Faujasite type
Reexamination Certificate
2005-04-26
2005-04-26
Johnson, Christina (Department: 1725)
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
Faujasite type
C502S064000, C502S065000, C502S073000
Reexamination Certificate
active
06884744
ABSTRACT:
A catalyst useful in cracking of hydrocarbon feedstock comprising particulate material composed of at least 70 weight percent zeolite and the remainder substantially composed of silica sol, alumina sol or mixtures thereof; wherein the particulate material has a kinetic conversion activity of at least about 3; and compositions for fluid catalytic cracking of petroleum feedstock comprising said catalyst and a second particulate material having a kinetic conversion activity of less than 3 wherein said catalyst composition having a kinetic conversion activity of at least about 2.
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Cheng Wu-Cheng
Deitz Philip S.
Zhao Xinjin
Johnson Christina
Troffkin Howard J.
W. R. Grace & Co.,-Conn.
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