Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Patent
1981-09-24
1983-12-27
Gantz, Delbert E.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With preliminary treatment of feed
208120, 208122, 208123, 208309, C10G 1104, C10G 2500, C10G 2512
Patent
active
044229267
ABSTRACT:
Basic asphaltenes are selectively removed from asphaltene-containing hydrocarbon feeds by contacting the feed with a transition metal oxide solid acid catalyst exhibiting Bronsted acidity. The catalyst selectively adsorbs the basic asphaltenes. The catalysts will comprise a catalytic metal component selected from the group consisting essentially of oxides of (a) tungsten, niobium and mixtures thereof and (b) mixtures of (a) with tantalum, hafnium, chromium, titanium, zirconium and mixtures thereof, supported on pyrogenic alumina. Asphalt-laden catalyst is separated from the feed, the asphaltenes adsorbed thereon are cracked off in the presence of steam and the catalyst is regenerated and recycled back to the adsorption zone.
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Yen, Shale Oil, Tar Sands, and Related Fuel Sources, Am. Chem. Soc. (1976) pp. 30-33.
Gould Kenneth A.
Grenoble Dane C.
Murrell Lawrence L.
Pieters Wim J. M.
Chaudhuri O.
Corcoran Edward M.
Exxon Research and Engineering Co.
Gantz Delbert E.
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