Method for recovery or maintaining the activity of hydroisomeriz

Details Method for recovery or maintaining the activity of hydroisomeriz Method for recovery or maintaining the activity of hydroisomeriz

1993-03-26

1994-04-26

Mc Farlane, Anthony

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Treating with a liquid or treating in a liquid phase,...

502 30, 502 31, 502 53, 208 24, B01J 2034, C10G 7300

Patent

active

053066812

ABSTRACT:
The isomerization activity of hydroisomerization catalyst is recovered by subjecting the catalyst to a wash using light aromatic solvents at elevated temperature, e.g. toluene at 300.degree. C. This hot aromatic solvent wash may be preceded by a hot hydrogen containing gas strip. Catalyst activity can be maintained by the continuous or periodic addition of light aromatic solvent or light aromatic containing materials to the feeds sent to the isomerization catalyst.

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patent: 5050299 (1991-10-01), Cody et al.

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