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US 2007/0179331 A1Published application
Method for hydrocarbon isomerization
OwnerDavid Vaughn, Karl Strohmaier +1inventors
InventorsDavid Vaughn, Karl Strohmaier, Wayne Kliewer
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Abstract
An improved isomerization process for hydrocarbon feedstreams through the use of aqueous-treated ferrierite catalysts is disclosed.
Claims27
A process to isomerize hydrocarbon feedstreams comprising:
- a) contacting a hydrocarbon feedstream with a aqueous-treated catalyst comprising ferrierite, or a zeolite isostructural to ferrierite, under hydroisomerization conditions including:
- i) temperatures of about 400 to about 800° F. (205° C. to about 430° C.);
- and
- ii) pressures of about 400 to about 2000 psig (2860 to about 13890 kPa);
- wherein after the above-described method, said catalyst desorbs sorbed ammonia at a temperature about 248° F. (120° C.) lower than the same untreated catalyst before the above-described method.
2 more elements
The process according to claim wherein said Group VIII metal is Pt.
A process to isomerize hydrocarbon feedstreams comprising:
- a) contacting a hydrocarbon feedstream with a aqueous-treated catalyst comprising ferrierite, or a zeolite isostructural to ferrierite, and about 0.05 to about 2.0 wt. % of at least one Group VIII metal, based on the weight of the catalyst, under hydroisomerization conditions including:
- i) temperatures of about 400 to about 800° F. (205° C. to about 430° C.);
- and
- ii) pressures of about 400 to about 2000 psig (2860 to about 13890 kPa);
- wherein said aqueous-treated catalyst is treated under conditions such that the aqueous-treated catalysts show removal of sorbed ammonia at a temperature about 194° F. to about 230° F. (90 to about 110° C.) lower than the same untreated catalyst.
2 more elements
Dependencies are inferred from the claim text.