USE OF POLYMERS AS HETEROGENEOUS HYDROGEN DONORS FOR HYDROGENATION REACTIONS

• Main Authors: JOSÉ LUIS CANO DOMÍNGUEZ, LAURA OLIVIA ALEMÁN VÁZQUEZ, JOSÉ LUIS GARCÍA GUTIÉRREZ
• Format: Patent
• Language: English; Spanish
• Published: 05.05.2016
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; COMPOSITIONS BASED THEREON; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MINERAL WAXES; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention 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 DEG C. La presente invención consiste en el uso de polímeros y copolímeros de tipo naftaleno como agentes de transferencia de hidrógeno heterogéneos para reacciones de hidrogenación, los cuales pueden estar soportados o extrudados y no soportados en óxidos metálicos tales sílice-caolín, como agentes de transferencia de hidrógeno en reacciones de hidrotratamiento térmico en presencia de agentes reductores como hidrógeno y/o metano. Estos donadores de hidrógeno por ser sólidos pueden ser reutilizados y recuperados del medio de reacción; además presentan una estabilidad térmica tal que permite llevar a cabo reacciones a temperaturas superiores a los 450 °C.