Abstract:
A method for marking a petroleum hydrocarbon or a liquid biologically derived fuel by adding at least one compound having formula (I), wherein R1 and R2 independently represent hydrogen or C1-C4 alkyl groups, and G represents hydrogen or at least one substituent selected from the group consisting of C1-C18 alkyl and C1-C18 alkoxy.
Abstract:
There is provided an apparatus (1) and methods for processing biomass to produce charcoal, bio-oil(s) activated carbon, recarburiser carbon, or nut coke by means of microwave energy. The apparatus has a rotatable tube (5) for receiving biomass (108), an electromagnetic generator (7). One method provides applying electromagnetic energy to the biomass (108) and an absorbing material (109). An alternative method provides allowing an indirect, black body radiation field to develop, and exposing the biomass (108) to the black body radiation field and the electromagnetic energy. Another method provides allowing plasma to form and exposing the biomass to the plasma and the electromagnetic energy. Another method provides introducing the biomass to a second container (205), introducing the second container to a first reaction container (5), applying electromagnetic energy to the biomass and an absorbing material (109), allowing a plasma to form in the first container, which heats the biomass in the second container.
Abstract:
Disclosed is a method for producing a renewable fuel using a supercritical fluid. The method includes charging a supported catalyst into a continuous reactor and adding a catalyst activating material thereto to activate the supported catalyst, feeding an oil or fat, hydrogen and a supercritical fluid into the continuous reactor and allowing hydrogenation and hydrodeoxygenation reactions of the oil or fat in the supercritical fluid to proceed, and collecting a renewable fuel as the reaction product. The method enables the production of an oxygen-free renewable fuel in a higher yield at a lower hydrogen pressure and a lower reaction temperature than conventional methods for producing renewable fuels.
Abstract:
Renewable fuels are produced in commercial quantities and with enhanced efficiency by integrating a bio-oil production system with a conventional petroleum refinery so that the bio-oil is co-processed with a petroleum-derived stream in the refinery. The techniques used to integrate the bio-oil production system and conventional petroleum refineries are selected based on the quality of the bio-oil and the desired product slate from the refinery.
Abstract:
When processing cellulosic biomass, it may be desirable for a digestion unit to operate without being fully depressurized for process efficiency purposes. Methods for processing cellulosic biomass may comprise providing a biomass conversion system comprising a pressurization zone and a digestion unit that are operatively connected to one another; providing cellulosic biomass at a first pressure; introducing at least a portion of the cellulosic biomass into the pressurization zone and pressurizing the pressurization zone to a second pressure higher than the first pressure; after pressurizing the pressurization zone, transferring at least a portion of the cellulosic biomass from the pressurization zone to the digestion unit, which is at a third pressure that is less than or equal to the second pressure but higher than the first pressure; and digesting at least a portion of the cellulosic biomass in the digestion unit to produce a hydrolysate comprising soluble carbohydrates.
Abstract:
A process for making a catalytic system for converting solid biomass into fuel of specialty chemical products is disclosed. The process includes preparing a slurry precursor mixture by mixing an aluminosilicate clay material with a pore regulating agent and optionally a binder, shaping the mixture into shaped bodies; removing the pore regulating agent to form porous shaped bodies, preparing an aqueous reaction mixture comprising the porous shaped bodies in presence of a zeolite seeding material, and thermally treating the aqueous reaction mixture to form the catalyst system. The catalyst system can comprise, for example, a MFI-type zeolite.
Abstract:
The present invention relates to an integrated process, which comprises a single cell oil production process, and a pulp and/or paper industry process. The process comprises that in the single cell oil production process is used a microorganism capable of producing lipids or lipids and enzymes when cultivated on a medium comprising organic material from pulp and/or paper industry. Lipids or lipids and enzymes are produced by said microorganisms in the single cell oil production process and/or in a process connected into it. The present invention relates also to use of lipids produced in the process as biofuel or as a component of biofuel or as a starting material for biofuel production and use of enzymes produced in the lipid production process in pulp and/or paper industry or in other applications as an enzyme preparation or as a source of enzymes.
Abstract:
The present invention provides highly fluorescent markers, made from a reactive polymer and an isocyanate, that fluoresce in the ultraviolet or near infrared region without being visible to the human eye at low concentrations in the fluid or article being marked. The molecular weight and fluorescence emission wavelength of these highly fluorescent marker compounds can be adjusted to provide a multitude of markers with unique fluorescence signatures.
Abstract:
In an embodiment of the present invention, a renewable energy fuel is prepared by a process including the steps of: a) providing a renewable energy feedstock; b) providing an alcohol; c) providing a catalyst; d) mixing (a), (b), and (c) to form a blend; and e) homogenizing the blend at a pressure greater than 400 kilogram-force per square centimeter (Kg/cm2).
Abstract:
A method for recovering lipids from microbial biomass, the method including providing wet microbial biomass which contains lipids to extraction without disrupting the biomass cell walls, and subsequently, extracting the wet microbial biomass with a liquid extractant at elevated temperature of at least 170° C. and elevated pressure. The combination of the temperature and pressure is such that the lipids in the cells are contacted with the extractant. Subsequently the extracted lipids are recovered from or with the extractant.