Catalytic hydrodewaxing gas oils and other selective...

Details Catalytic hydrodewaxing gas oils and other selective... Catalytic hydrodewaxing gas oils and other selective...

C - Chemistry, Metallurgy

10

G

196/100

C10G 11/02 (2006.01) C10G 45/64 (2006.01) C10G 47/00 (2006.01)

Patent

CA 1036527

ABSTRACT OF THE DISCLOSURE In the selective cracking or hydrocracking of normal and slightly (methyl) branched paraffins by contacting petro- leum stocks containing such with a crystalline aluminosilicate zeolite catalyst having a high silica to alumine ratio of at least 12 and a constraint index of about 1-12 at elevated temperature, and hydrogen pressure if required, the improve- ment or using the zeolite catalyst in a microcrystalline form having a maximum crystal size of about 0.05 microns (??) whereby not only is the catalytic activity increased but the catalyst aging rate is decreased and the product distribution is varied.

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