Synthesis of acidic silica to upgrade heavy feeds
AssigneeBoard of Regents, The University of Texas System
InventorsKarina Castillo, Jason Parsons, Russell R. Chianelli
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Abstract
A method and a product made by treating a sulfur-containing hydrocarbon heavy feed, e.g., heavy crude asphaltene reduction is disclosed herein. The method comprises the steps of: mixing the sulfur-containing hydrocarbon heavy feed with a hydrogen donor solvent and an acidified silica to form a mixture and oxidizing the sulfur in the mixture at a temperature between 50° C. and 210° C., wherein the oxidation lowers the amount sulfur in the sulfur-containing hydrocarbon heavy feed by at least 90%.
Claims3
A method of reducing asphaltene content in a crude oil comprising the steps of:
- mixing the crude oil with an organic solvent and one or more silica-noble metal nanoparticles to form a mixture;
- refluxing the mixture to obtain solids comprising asphaltenes;
- and
- filtering the refluxed mixture to recover the asphaltene in a solid residue and the crude oil with reduced asphaltene content in a filtrate.
Dependencies are inferred from the claim text.