PROCESO SELECTIVO Y CATALIZADORES PARA LA PRODUCCION DE COMBUSTIBLES Y DESTILADOS RENOVABLES DE ALTO PESO MOLECULAR

• Main Authors: EDRAL PACHECO, Marcelo, CAETANO CHISTONE, Rodrigo, ZOTIN, Jose Luiz, GOMES, Jefferson Roberto, DE ALMEIDA LYRA CORREA, Anilza
• Format: Patent
• Language: Spanish
• Published: 24.03.2023
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; CHEMISTRY; CRACKING HYDROCARBON OILS; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; MINERAL WAXES; NATURAL GAS; 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; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE

La presente invencion se refiere a un proceso para convertir aceites vegetales, grasas animales, aceites comestibles residuales y acidos carboxilicos en combustibles liquidos renovables, tales como bionafta, bioQAV y diesel renovable, para su uso en mezcla con combustibles fosiles. El proceso consta de dos etapas: hidrotratamiento e hidrocraqueo. El efluente de la etapa de hidratacion contiene aromaticos, olefinas y compuestos resultantes de la polimerizacion de esteres y acidos en su composicion. Este hecho se produce debido al uso de catalizadores parcialmente reducidos y sin inyeccion de agente sulfuro y permite la obtencion de un bioQAV con calidad adecuada para su uso en mezcla con querosene fosil. Al mismo tiempo, el proceso genera, ademas de productos en el rango de destilacion de nafta, querosene y diesel, parafinas lineales de alto peso molecular (con hasta 40 atomos de carbono). The present invention relates to a process for the conversion of plant oils, animal fats, waste food oils and carboxylic acids into renewable liquid fuels, such as bio-naphtha, bioQAV and renewable diesel, for use in combination with fossil fuels. The process is composed of two steps: hydrotreatment and hydrocracking. The effluent from the hydrotreatment step contains aromatics, olefins and compounds resulting from the polymerization of esters and acids. This is due to the use of partially reduced catalysts without the injection of a sulfiding agent and allows for the production of bioQAV of suitable quality for use in combination with fossil kerosene. Concurrently, the process generates, in addition to products in the distillation range of naphtha, kerosene and diesel, high molecular weight linear paraffins (up to 40 carbon atoms).