초록 ▼

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 pa

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.

대표청구항 ▼

[ We claim as our invention:] [1.] A method for converting a hydrocarbonaceous feedstock to a product having a boiling point which is lower than the boiling point of the hydrocarbonaceous feedstock, which comprises:blending a hydrocarbonaceous feedstock and an oxide particle precursor fluid;heating

[ We claim as our invention:] [1.] A method for converting a hydrocarbonaceous feedstock to a product having a boiling point which is lower than the boiling point of the hydrocarbonaceous feedstock, which comprises:blending a hydrocarbonaceous feedstock and an oxide particle precursor fluid;heating the resulting blend to precipitate oxide particles;suspending metal sulfide particles and the oxide particles as a dispersion in a reaction zone including hydrogen and the feedstock; the reaction zone being maintained under hydrogenation reaction conditions effective to convert the feedstock to a product having a boiling point which is lower than the boiling point of the hydrocarbonaceous feedstock; the metal sulfide particles having an effective suspended particle size of about 0.001 to about 50 microns and being composed essentially of a metal sulfide which persists under the reaction conditions and is a sulfide of a sulfidable transition metal or mixtures thereof; the oxide particles having an effective suspended particle size of about 0.001 to about 50 microns and being composed essentially of an oxide which persists under the reaction conditions and is an oxide of oxidisable element selected from Group IIA, IIIB, IVB, IIIA, IVA, or VA of the Periodic Table of the Elements or mixtures thereof;separating the product from the metal sulfide particles and the oxide particles; andrecovering the product.