Method of preparing a catalyst for hydrocracking

Details Method of preparing a catalyst for hydrocracking Method of preparing a catalyst for hydrocracking

B - Operations, Transporting

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B01J 23/74 (2006.01) B01J 27/18 (2006.01) B01J 27/19 (2006.01) B01J 35/10 (2006.01) B01J 37/00 (2006.01) C10G 45/04 (2006.01) C10G 47/02 (2006.01) C10G 47/12 (2006.01)

Patent

CA 1204722

ABSTRACT The invention relates to a hydrocracking catalyst in pellet form and a method for making the hydrocracking catalyst. The hydrocracking catalyst has a surface area of about 90 to about 250 square meters per gram, a pore volume of about 0.25 to about 0.55 cubic centimeters per gram, a real density of about 3.00 to about 5.00 grams per cubic centimeter, and an apparent density of about 1.50 to about 2.00 grams per cubic centimeter. The catalyst contains aluminum in an overall concentration of about 25 to about 35 weight percent, iron in an overall concentration of about 5 to about 15 weight percent, silicon in an overall concentration of about 1 to about 10 weight percent, titanium in an overall concentration of about 0.63 to about 5 weight percent, and a promoter which is a member of the group consisting of molybdenum and phosphorus or mixture thereof. The molybdenum, if present, is present in an overall concentration of about 1 to about 10 weight percent and the phosphorus, if present, is present in an amount of about 1 to about 8 weight percent. The catalyst pellet surface concentration of the promoter is higher than the overall concentration of the promoter. The atomic ratio of molybdenum to aluminum at the pellet surface is in the range of about 0.03 to about 0.09 when molybdenum is present in the catalyst. The atomic ratio of phosphorus to aluminum at the pellet surface is in the range of about 0.10 to about 0.60 when phosphorus is present in the catalyst.

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