| abstract |
abstract "silica-containing alumina supports, catalysts made therefrom, and processes using the same" alumina support compositions comprising at least 0.1% by weight silica are disclosed. alumina supports are characterized by a pore volume greater than 0.60 cm3 / g, an average pore size ranging from about 70 å to about 120 å, a pore size distribution such that at least at least 90% of the total pore volume falls within the range of about 20 å to about 250 å, and a pore size distribution width of not less than about 40 å. the alumina compositions of the present invention exhibit a main peak mode with a pore diameter smaller than the average pore diameter. also provided are the catalysts obtained from the alumina supports, and processes for preparing and using the supports and catalysts. |