Abstract:
Low metal, low water biomass-derived pyrolysis oils and methods for producing the same are provided. Metal- and water-containing biomass-derived pyrolysis oil is contacted with an acidic ion-exchange resin having sulfonic acid groups to produce a low metal, water-containing biomass-derived pyrolysis oil. The low metal, water-containing biomass-derived pyrolysis oil is removed from the spent ion-exchange resin after ion-exchange. The low metal, water-containing biomass-derived pyrolysis oil is distilled to produce a low metal, low water biomass-derived pyrolysis oil and a distillation product. The distillation product comprises one or both of an alcohol ion-exchange regenerant and an acidic ion-exchange regenerant which may be used to regenerate the spent ion-exchange resin. The regenerated acidic ion-exchange resin may be recycled. The spent alcohol and acid ion-exchange regenerants may be recovered and recycled.
Abstract:
The present invention relates to a continuous process for the enzymatic hydrolysis of cellulosic biomass and to an apparatus for conducting said process. According to the present invention, a steady state is achieved in a reactor in regard to the hydrolysis reaction. Therein, cellulosic biomass of a high total solids content (preferably 10% or higher, further preferably between 15 and 30%) is continually added to said reactor, while at least partially hydrolyzed cellulosic biomass is continually removed from said reactor. The steady state is adjusted, i.e. the amount of cellulosic biomass added and the amount of at least partially hydrolyzed cellulosic biomass removed is adjusted, so that the retention time of a given portion of added cellulosic biomass in the reactor is longer than its “liquefaction time”, i.e. the time period required to transform a solid slurry into a pumpable liquid during hydrolysis, i.e. the time required to lower the viscosity of the slurry to a value, which is acceptable for further processing.
Abstract:
In one aspect, a method for rendering biomass-derived pyrolysis oil miscible with refinery hydrocarbons comprises mixing a high oxygen content bio-oil having an oxygen content of at least about 10 wt. % with a low oxygen content bio-oil having an oxygen content of less than about 8 wt. % to produce a blended oil. The blended oil may be hydrotreated to produce a deoxygenated hydrotreated mixture from which water is removed using a separator, resulting in a low oxygen content hybrid bio-oil intermediate miscible in refinery process streams. A portion of the low oxygen content hybrid bio-oil intermediate may be recycled with the high oxygen content bio-oil or removed for use in a refinery process stream for further hydroprocessing.
Abstract:
The object of the present invention is to neutralize acidity of bio-oil so as to allow practical use of bio-oil as fuel. Neat liquid of acidic bio-oil is flow in the treatment bath 1. Magnesium powder is added to the liquid from the input chute 3 and the mixture is stirred in the stirrer 7 until the magnesium powder is completely dissolved. The treated oil is taken from the outlet tube 4. The hydrogen gas generated is collected by the suction duct 5, and the reaction heat generated is collected by the heat exchanger 6.
Abstract:
The present invention concerns low energy requiring methods for processing low cellulosic biomass materials into oil, char and liquid components. One method comprises the steps of subjecting the biomass to hydrothermal carbonization under specified reaction conditions for producing a combined char and oil fraction as well as an aqueous fraction, separating the combined oil and char fraction from the aqueous fraction by filtration; separating the combined oil and char fraction into individual oil and char fractions using an organic solvent for forming an oil depleted char fraction and a liquid oil and solvent solution, and separating the liquid oil and solvent solution into individual oil and solvent fractions by distillation.
Abstract:
The invention relates generally to the field of biofuel synthesis. More specifically, the invention relates to processes for the synthesis of biofuels from organic materials including lignocellulosic biomass and coal. Also provided are biofuel products obtained from processes of the invention.
Abstract:
A multi-stage process and system for converting solid particulate biomass in a riser reactor having at least two different reaction zones. A lower reaction zone is configured to optimize pyrolysis of the biomass into pyrolysis products, while an upper reaction zone is configured to efficiently crack the pyrolysis products. The relative residence times and/or temperatures of the upper and lower reaction zones can be controlled to optimize product quality and yield.
Abstract:
Techniques, systems, apparatus and material are disclosed for regeneration or recycling of carbon substances into renewable fuel and materials. In one aspect, a method of recycling carbon to produce a renewable fuel can include harvesting carbon donors, such as carbon dioxide (CO2), emitted from an agricultural process. Hydrogen donors, such as from biomass waste, can be dissociated under an anaerobic reaction to produce hydrogen. The harvested carbon dioxide can be reacted with the waste-produced hydrogen under pressure and temperature to generate a renewable fuel, such as methanol fuel.
Abstract:
The present invention relates to a method for renewable energy production using biomass, more specifically, method for producing eco-friendly biodiesel with algal lipid and dimethyl carbonate.
Abstract:
The present disclosure refers to a fuel free of emulsifiers, wherein the fuel may be an emulsion of (a) at least one of a mineral oil, synthetic oil, or natural oil in (b) a pyrolysis oil with a percent weight ratio, (a):(b), of 1 to 15:99 to 85. The Sauter Mean Diameter of droplets of (a) in the emulsion may be 1 micrometer to 15 micrometers. An internal combustion engine system may comprise a reservoir for pyrolysis oil and a reservoir for at least one of a mineral oil, synthetic oil, or natural oil, and a homogenizer configured to provide an emulsion from said oils. The homogenizer may include an inlet connected with said reservoirs and an outlet. The system may also comprise an internal combustion engine which may include at least one combustion chamber, wherein the outlet of the homogenizer may be connected to the internal combustion engine.