CATALIZADORES Y PROCESO DE SELECCIÓN PARA LA PRODUCCIÓN DE COMBUSTIBLES DE AVIACIÓN RENOVABLES Y BIOCOMBUSTIBLES PRODUCIDOS

• Main Authors: ROBERTO GOMES, JEFFERSON, CAETANO CHISTONE, RODRIGO, DE ALMEIDA LYRA CORREA, ANILZA, EDRAL PACHECO, MARCELO, ZOTIN, JOSE LUIZ
• Format: Patent
• Language: Spanish
• Published: 16.11.2022
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; MINERAL WAXES; NATURAL GAS; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; 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; THEIR RELEVANT APPARATUS; TRANSPORTING

La presente invención está relacionada con un proceso para convertir aceites vegetales, grasas animales, aceites alimentarios residuales y ácidos carboxílicos en combustibles líquidos renovables, tales como bionafta, bioQAV y diesel renovable, para su uso en mezclas con combustibles fósiles. El proceso consta de dos pasos: hidrotratamiento e hidrocraqueo. El efluente de la etapa de hidrotratamiento contiene aromáticos, olefinas y compuestos resultantes de la polimerización de ésteres y ácidos en su composición. Este hecho ocurre debido al uso de catalizadores parcialmente reducidos y sin la inyección de un agente sulfuro, y permite obtener un bioQAV con calidad adecuada para su uso en mezcla con queroseno fósil. Al mismo tiempo, el proceso genera, además de productos en el rango de destilación de nafta, queroseno y diesel, parafinas lineales de alto peso molecular (con hasta 40 átomos de carbono). The present invention relates to a process for converting vegetable oils, animal fats, residual edible oils and carboxylic acids into renewable liquid fuels, such as bionaphtha, bioJET-A1 and renewable diesel, for use in a mixture with fossil fuels. The process consists of two steps: hydrotreating and hydrocracking. The effluent from the hydrotreatment step presents aromatics, olefins and compounds resulting from the polymerization of esters and acids in its composition. This fact occurs due to the use of partially reduced catalysts and without injection of sulfide agent and allows obtaining a bioJET-A1 with adequate quality for use in a mixture with fossil kerosene. At the same time, the process generates, in addition to products in the distillation range of naphtha, kerosene and diesel, high molecular weight linear paraffins (with up to 40 carbon atoms).