Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Patent
1988-03-09
1990-04-24
Chaudhuri, Olik
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
502 69, 502234, 502251, 208251R, B01J 2108, B01J 2110
Patent
active
049200879
ABSTRACT:
Catalytic cracking catalysts which contain a basic alkaline earth metal component in amounts greater than 5 percent by weight (expressed as the oxides) are used to crack hydrocarbon feedstocks that contain substantial quantities of metals such as vanadium, nickel, copper and iron. In a particularly preferred embodiment natural or synthetic particulate magnesium oxide (MgO) containing composites such as dolomite or a formed particulate coprecipitated magnesia-silica cogel (MgO.SiO.sub.2) having a substantial intra-particle pore volume in pores ranging from about 200-10,000 .ANG. in diameter and an average pore diameter greater than about 400 .ANG. in the 200-10,000 .ANG. diameter range is mixed with a zeolite containing fluid cracking catalyst (FCC) either as an integral component of the catalyst particle or as a separate additive.
REFERENCES:
patent: 4444655 (1984-04-01), Shiroto et al.
patent: 4465779 (1984-08-01), Occelli et al.
Chaudhuri Olik
Savage Arthur P.
W. R. Grace & Co.,-Conn.
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