Abstract:
Methods for deoxygenating treated biomass-derived pyrolysis oil are provided. The treated biomass-derived pyrolysis oil is exposed to a catalyst having a neutral catalyst support such as a non-alumina metal oxide support, a theta alumina support, or both. The non-alumina metal oxide support may be a titanium oxide (TiO2) support, a silicon oxide support, a zirconia oxide (ZrO2) support, a niobium oxide (Nb2O5) support, or a support having a mixture of non-alumina metal oxides. The catalyst may include a noble metal or a Group VIII non-noble metal and a Group VIB non-noble metal on the neutral catalyst support. The treated biomass-derived pyrolysis oil is introduced into a hydroprocessing reactor in the presence of the catalyst under hydroprocessing conditions to produce low oxygen biomass-derived pyrolysis oil.
Abstract:
Methods for producing low oxygen biomass-derived pyrolysis oil are provided. Starting biomass-derived pyrolysis oil is deoxygenated by exposing the biomass-derived oil to a first catalyst in the presence of hydrogen-containing gas at first hydroprocessing conditions to produce a partially deoxygenated biomass-derived pyrolysis oil. The first catalyst has a neutral catalyst support. The partially deoxygenated biomass-derived pyrolysis oil is exposed to a second catalyst in the presence of additional hydrogen-containing gas at second hydroprocessing conditions to produce a hydrocarbon product. The biomass-derived pyrolysis oil may be esterified prior to deoxygenation. A portion of the low oxygen biomass-derived pyrolysis oil is recycled.
Abstract:
A METHOD OF REMOVING HETEROCYCLIC SULFIDE IMPURITIES FROM A FLUID STREAM IS PRESENTED. THE METHOD COMPRISED CONTACTING THE FLUID STREAM WITH A SORBENT COMPRISING METALLIC COPPER.
Abstract:
A method of removing mercury from a fluid stream comprising contacting the fluid stream with a sorbent comprising cupric sulfide. The cupric sulfide is formed from direct sulfidation of copper carbonate, without thermal decomposition of the copper carbonate to an oxide, at a temperature less than 150°C.
Abstract:
Se proveen métodos de desoxigenación de aceite de pirólisis derivado de biomasa tratado. El aceite de pirólisis derivado de biomasa tratado es expuesto a un catalizador que posee un soporte de catalizador neutro como un soporte de óxido metálico no alúmina, un soporte de theta alúmina, o ambos. El soporte de óxido metálico no alúmina puede ser un soporte de óxido de titanio (TiO2), un soporte de óxido de silicio, un soporte de óxido de zirconio (ZrO2), un soporte de óxido de niobio (Nb2O5), o un soporte que comprende mezclas de óxidos de metálicos no alúmina. El catalizador puede incluir un metal noble o un metal no noble del Grupo VIII y un metal no noble del Grupo VIB sobre el soporte de catalizador neutro. El aceite de pirólisis derivado de biomasa tratado es introducido en un reactor de hidroprocesamiento en presencia del catalizador bajo condiciones de hidroprocesamiento con el fin de obtener un aceite de pirólisis derivado de biomasa tratado con bajo contenido de oxígeno.
Abstract:
A method of removing mercury from a fluid stream comprising contacting the fluid stream with a sorbent comprising cupric sulfide. The cupric sulfide is formed from direct sulfidation of copper carbonate, without thermal decomposition of the copper carbonate to an oxide, at a temperature less than 150°C.
Abstract:
Methods for producing low oxygen biomass-derived pyrolysis oil are provided. Starting biomass-derived pyrolysis oil is deoxygenated by exposing the biomass-derived oil to a first catalyst in the presence of hydrogen-containing gas at first hydroprocessing conditions to produce a partially deoxygenated biomass-derived pyrolysis oil. The first catalyst has a neutral catalyst support. The partially deoxygenated biomass-derived pyrolysis oil is exposed to a second catalyst in the presence of additional hydrogen-containing gas at second hydroprocessing conditions to produce a hydrocarbon product. The biomass-derived pyrolysis oil may be esterified prior to deoxygenation. A portion of the low oxygen biomass-derived pyrolysis oil is recycled.
Abstract:
Methods for deoxygenating treated biomass-derived pyrolysis oil are provided. The treated biomass-derived pyrolysis oil is exposed to a catalyst having a neutral catalyst support such as a non-alumina metal oxide support, a theta alumina support, or both. The non-alumina metal oxide support may be a titanium oxide (TiO2) support, a silicon oxide support, a zirconia oxide (ZrO2) support, a niobium oxide (Nb2O5) support, or a support having a mixture of non-alumina metal oxides. The catalyst may include a noble metal or a Group VIII non-noble metal and a Group VIB non-noble metal on the neutral catalyst support. The treated biomass-derived pyrolysis oil is introduced into a hydroprocessing reactor in the presence of the catalyst under hydroprocessing conditions to produce low oxygen biomass-derived pyrolysis oil.