Abstract:
Processes for producing a low acid biomass-derived pyrolysis oil are provided that include pre-treating a biomass-derived pyrolysis oil to form a treated acid-containing biomass-derived pyrolysis oil. The processes also include esterifying the treated acid-containing biomass-derived pyrolysis oil in the presence of supercritical alcohol and a catalyst composition to form the low-acid biomass-derived pyrolysis oil, the catalyst composition comprising a material selected from the group consisting of an unsupported solid acid catalyst, an unsupported solid base catalyst, and a catalytic metal dispersed on a metal oxide support.
Abstract:
Low water-containing biomass-derived pyrolysis oils and processes for preparing them are provided. Water-containing biomass-derived pyrolysis oil is distilled in the presence of an azeotrope-forming liquid to form an azeotrope. The azeotrope is removed at or above the boiling point of the azeotrope and low water biomass-derived pyrolysis oil is obtained.
Abstract:
A method of determining a surface property of a plurality of solids by contacting the solids with a fluid, measuring the radiation emitted, absorbed, or altered during desorption of the fluid using a detector, and then determining at least one surface property of the solids from the radiation measurements has been invented. The invention is particularly useful in combinatorial applications in order to evaluate a plurality of solids or mixtures of solids to determine at least one surface property of each of the solids.
Abstract:
Se proporcionan métodos para desoxigenar aceites de pirólisis derivados de biomasa. En una modalidad de realización de la presente invención, se proporciona un método que comprende los pasos de, diluir los aceites de pirólisis derivados de biomasa, con un diluyente que contiene compuestos fenólicos, para formar una alimentación de bioaceite diluido en compuestos fenólicos. La alimentación de bioaceite diluido en compuestos fenólicos, se contacta con un catalizador de desoxigenación en presencia de hidrógeno, y en condiciones de hidroprocesamiento, que son efectivas para formar un efluente de aceites de pirólisis derivados de biomasa con bajo contenido de oxígeno.
Abstract:
A hydrocarbon prod-uct stream having hydrocarbons with boiling points in the aviation fuel range is produced from renewable feedstocks such as plant and animal oils. The process involves treating a renewable feedstock by hydrogenat-ing, deoxygenating, isomerization, and selectively hydrocracking the feedstock to produce paraffinic hy-drocarbons having from 9 to 16 car-bon atoms and a high iso/normal ra-tio in a single reaction zone contain-ing a multifunctional catalyst, or set of catalysts, having hydrogenation, deoxygenation, isomerization and se-lective hydrocracking functions.
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 PROCESS FOR THE CONVERSION OF BIOMASS DERIVED PYROLYSIS OIL TO LIQUID FUEL COMPONENTS IS PRESENTED. THE PROCESS INCLUDES THE PRODUCTION OF DIESEL, AVIATION, AND NAPHTHA BOILING POINT RANGE FUELS OR FUEL BLENDING COMPONENTS BY TWO-STAGE DEOXYGENATION OF THE PYROLYSIS OIL AND SEPARATION OF THE PRODUCTS.