Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1998-03-03
1999-08-31
Wood, Elizabeth D
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502305, 502306, 502321, 502322, 502323, B01J 2306, B01J 2328
Patent
active
059453710
ABSTRACT:
A catalyst composition and a process for hydrodealkylating a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon are disclosed. The composition comprises an alumina, molybdenum oxide, and zinc oxide. The process comprises contacting a fluid which comprises a C.sub.9 + aromatic compound with the catalyst composition under a condition sufficient to effect the conversion of a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon. Also disclosed is a process for producing the composition which comprises: (1) contacting an alumina, which can be optionally calcined before being contacted, with a molybdenum compound and zinc compound in a liquid medium under a condition sufficient to incorporate the molybdenum compound and zinc compound into the alumina to form a modified alumina wherein the volume of the liquid medium is larger than the bulk volume of alumina; (2) removing the excess liquid medium; (3) drying the modified alumina; and (4) calcining the modified alumina to a Mo/Zn-promoted alumina under a condition sufficient to effect the conversion of the molybdenum compound and zinc compound to corresponding oxides.
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Drake Charles A.
Wu An-hsiang
Phillips Petroleum Company
Wood Elizabeth D
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