Direct conversion of residual oils
AssigneeMobil Oil Corporation
InventorHans J. Schoennagel
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Abstract
A process for the direct catalytic conversion of petroleum residual oils is disclosed wherein said oils, hydrogen and hot solid catalyst particles are contacted to form a suspension in a riser reactor thereby producing lower boiling components with the concomitant removal of impurities, e.g., metals, sulfur and nitrogen,, from the oils. Furthermore, the catalyst particles are regenerated in a partial oxidation mode, i.e. with oxygen and steam present to generate a synthesis gas comprising CO, CO.sub.2 and H.sub.2. Such synthesis gas can be subsequently shifted to produce a H.sub.2 --CO.sub.2 rich gas which could then serve as the hydrogen source in the riser reactor.
Claims16
A process for converting residual oils to lower boiling components which comprises:
- (a) combining petroleum residual oil and hydrogen containing gas with hot solid catalyst particles at a temperature of between about 1000.degree. F. and 1800.degree. F., the ratio of catalyst to oil being within the range of between about 2 and 15, with hydrogen pressure being maintained within the range of between about 100 psig and 1000 psig, to form a suspension;
- (b) passing the suspension through a reactor arrangement providing an oil residence time of between about 1 second and 30 seconds;
- (c) separating and recovering said lower boiling components and said solid catalyst particles;
- (d) gasifying and regenerating the separated solid catalyst particles with a mixture of oxygen-containing gas and steam in a fluidized bed operating in a partial oxidation mode to produce synthesis gas and regenerated catalyst;
- (e) recovering said synthesis gas;
- (f) directly returning the regenerated catalyst to combine with the residual oil and hydrogen in said reactor arrangement.
Dependencies are inferred from the claim text.