Instituto Mexicano Del Petroleo

José Luis Cano Domínguez

Laura Olivia Alemán Vázquez

Federico Jiménez Cruz

Fidencio Hernández Pérez

María Teresa Mares Gallardo

José Luis García Gutiérrez

José Luis Garciá Gutiérrez

The present invention is related to the application of solid polymers or copolymers prepared from monomers having in their structure a polycyclic aromatic ring, an aromatic ring of the type of naphthalene, or polyesters, polyethers, polyamides or polyvynil derivatives having naphthalene units in their structure, in the hydrotreatment or hydrocracking of heavy hydrocarbons, such as heavy or extra-heavy crude oils or residues from the distillation of petroleum; these polymers or copolymers may be supported, anchored or in a physical mixture with metallic oxides such as alumina, silica, titania or kaolin, and they have an application as heterogeneous hydrogen donors in reactions of hydrotreatment or hydrocracking of heavy or extra-heavy crude oils, residues from the distillation of petroleum and cuts and streams deived from this distillation. These solid polymers or copolymers operate in the presence of hydrogen or methane-rich gas. These hydrogen donor polymers, being solid, may be recovered from the reaction mixture to be reused and have a thermal stability that allows for their use in reactions at temperatures above 450&#xb0; C. These heterogeneous hydrogen donors improve the physical properties of crude oils, such as API gravity, viscosity, and distillates yield, inhibiting the formation of coke.

Use of polymers as heterogeneous hydrogen donors in the upgrading of heavy and extra-heavy crudes

The present disclosure covers the use of polymers or copolymers having a naphthalene-type unit in their structure as heterogeneous hydrogen transfer agents for hydrogenation, hydrotreatment or reduction reactions. These heterogeneous hydrogen transfer agents may or may not be supported on metallic oxides and may be used in the presence of reducing agents such as hydrogen or methane. These hydrogen donors, being solid at the reaction temperature, may be recovered from the reaction mixture and reused, and are thermally and chemically stable at temperatures up to above 450&#xb0; C.

Use of polymers as heterogeneous hydrogen donors for hydrogenation reactions

Growing community of inventors

México, Mexico

José Luis Cano Domínguez