Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1997-03-27
1999-09-21
Griffin, Walter D.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
208112, 208420, 585752, C10G 4702
Patent
active
059549459
ABSTRACT:
A method for converting a hydrocarbonaceous feedstock to a lower boiling temperature product is described which comprises suspending metal sulfide particles and oxide particles in a reaction zone including hydrogen and the hydrocarbonaceous feedstock at hydrocracking conditions. The metal sulfide particles and the oxide particles are introduced into the reaction zone through particle precursor fluids which precipitate upon heating to form the particles. The metal sulfide particles contain sulfidable transition metals. The oxide particles contain oxidisable elements such as magnesium, aluminum, silicon, phosphorous, calcium, scandium, titanium, gallium, germanium, zirconium, cerium, and mixtures thereof and are not hydrogenation catalysts under the reactor conditions. The oxide particles resist being chemically reduced by reducing agents in the reaction zone. Surprisingly, the presence of the oxide particles is associated with a significant reduction of coke production in the reaction zone. A hydrogenation catalyst precursor comprising a hydrocarbonaceous feedstock, a sulfide particle precursor fluid, and an oxide particle precursor fluid is also described.
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Excerpt from Energy Progess (vol. 1, No. 1-4) entitled "Novel Catalyst and Process to Upgrade Heavy Oils" authored by Roby Bearden and Clyde L. Aldridge of Exxon R&D Laboratories, Baton Rouge, LA pp. 44-48 (Dec. 1981).
Pending U.S. Patent Application No. 08/761,746, filed Dec. 5, 1996 as Miller et al.
Cayton Roger H.
Fisher Ronald B.
Miller Jeffrey T.
Waynick John A.
BP Amoco Corporation
Griffin Walter D.
Preisch Nadine
Sroka Frank J.
Yesukevich Robert A.
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