Wood, Sawdust Or Paper Patents (Class 44/590)
  • Patent number: 8250995
    Abstract: A Log Cartridge Burning System is provided comprising a simple, convenient and manageable wood burning system which can easily be applied for use to cook and heat. The log cartridge is comprised of a flammable body of compressed material and a bore formed and sealed by the use of a protective outer paperboard tube and a protective inner paperboard tube together with a top and bottom paperboard cover which serve to hold and maintain the integrity of the entire cartridge without the use of any wax binders. The flammable body of compressed material may be made partly or entirely from natural combustible materials such as sawdust or wheat hulls. The burn pot is specially designed to accommodate the log cartridge of the present invention. The log cartridge burning system can easily be utilized in a variety of appliances such as a patio heater or fireplace, barbecue or grill, or other cooking and heating appliances.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: August 28, 2012
    Inventor: Henry K. Lee
  • Publication number: 20120174475
    Abstract: A Novel fuel object comprised of a proportion of switch grass and a proportion of wood fiber combined with a basically reacting compound. The fuel comprises fiber of the appropriate size and moisture content combined with an inorganic base. An appropriately sized fuel object is readily manufactured, provides high heat output, is consistent in fuel characteristics, and is sized and configured for use in power generation facilities. Based on fiber selection and processing, the fuel object may be used in a variety of current power generation technologies including stoker, fluidized bed, gasifier, cyclonic, direct-fired, and pulverized coal technologies, and results in significant reduction of air emissions (including sulfur dioxide, nitrogen oxides, hydrochloric acid, carbon monoxide, carbon dioxide, and mercury) compared to coal with no loss of boiler or furnace efficiency.
    Type: Application
    Filed: March 16, 2012
    Publication date: July 12, 2012
    Applicant: Biogenic Reagents LLC
    Inventors: James A. Mennell, William A. Brake, Kenneth G. Oja
  • Publication number: 20120174476
    Abstract: A Novel fuel object comprised of a proportion of corn stover and a proportion of wood fiber combined with a basically reacting compound. The object comprises fiber of the appropriate size and moisture content combined with an inorganic base. An appropriately sized object is readily manufactured, provides high heat output, is consistent in fuel characteristics, and is sized and configured for use in power generation facilities. Based on fiber selection and processing, the fuel object may be used in a variety of current power generation technologies including stoker, fluidized bed, gasifier, cyclonic, direct-fired, and pulverized coal technologies, and results in significant reduction of air emissions (including sulfur dioxide, nitrogen oxides, hydrochloric acid, carbon monoxide, carbon dioxide, and mercury) compared to coal with no loss of boiler or furnace efficiency.
    Type: Application
    Filed: March 16, 2012
    Publication date: July 12, 2012
    Applicant: Biogenic Reagents LLC
    Inventors: James A. Mennell, William A. Brake, Kenneth G. Oja
  • Patent number: 8183422
    Abstract: Described is a process for converting pyrolysis oil obtained by pyrolysis of biomass into fuel range hydrocarbon by alcoholysis of pyrolysis oil with subsequent hydrotreatment. A straightforward methodology to prepare upgradeable pyrolysis oil via alcoholysis. A method hydrotreating technology for oxygen removal and hydrocarbon production. The resulting hydrocarbon products are 100% fungible with conventional transportation fuels.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: May 22, 2012
    Assignee: ConocoPhillips Company
    Inventors: Edgar Lotero Alegria, Kristi Fjare, Daren Daugaard, Alexandru Platon
  • Patent number: 8142526
    Abstract: Artificial fire logs made from non-petrochemical based, renewable materials are described. These artificial fire logs perform substantially equivalent to existing commercial fire logs. The artificial fire logs are made from cellulosic materials, a lignin containing composition and a non-petroleum based wax where the lignin containing composition comprises lignin and 1,3-propanediol derived from a renewable resource.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: March 27, 2012
    Assignee: Weyerhaeuser NR Company
    Inventors: David W. Park, Amar N. Neogi, Ludwig Furtner, Jr.
  • Patent number: 8137420
    Abstract: A method of producing a biomass-based fuel pellet, such as a fuel pellet which includes thermoplastic polymeric material and a substantial amount of cellulosic material, e.g. cellulosic material derived from biomass source(s), is provided. The method commonly includes compressing a feed mixture to form a densified material, where the feed mixture includes about 5 to 15 wt. % of the thermoplastic polymeric material and at least about 75 wt. % cellulosic material. Many embodiments of the fuel pellets are suitable for use in a coal-fired furnace and/or in other industrial boiler applications.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: March 20, 2012
    Assignee: Renewable Densified Fuels, LLC
    Inventor: Milan Kluko
  • Patent number: 8123824
    Abstract: An artificial firelog according to the present invention may comprise as constituents a combustible cellulosic or fiber material, a non-absorbent combustible oil- and/or fat-retaining material, and a combustible binder/fuel or wax in appropriate proportions. A combustible binding agent may be also be added as an additional constituent material to allow a further reduction of the combustible wax component. Certain naturally occurring agricultural by products and synthetic filter materials contain oils and/or fats that provide increased BTU value beyond the cellulosic or mineral components of the material. When these oil- and/or fat-retaining materials added to a blend of firelog material, the non-absorbent properties and additional BTU content of these alternative raw materials allow the amount of higher BTU wax material to be reduced without a dramatic reduction in fuel content in the finished mixture.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: February 28, 2012
    Assignee: Duraflame, Inc.
    Inventors: Alexander U. Cavero, Jr., Gary W. Leach, Willer de Oliveira, Alan Zachary
  • Patent number: 8123864
    Abstract: The present invention provides an apparatus and a method for conversion of cellulosic material, such as chopped straw and corn stover, and household waste, to ethanol and other products. The cellulosic material is subjected to continuous hydrothermal pre-treatment without addition of chemicals, and a liquid and a fiber fraction are produced. The fiber fraction is subjected to enzymatic liquefaction and saccharification. The method of the present invention comprises: performing the hydrothermal pre-treatment by subjecting the cellulosic material to at least one soaking operation, and conveying the cellulosic material through at least one pressurized reactor, and subjecting the cellulosic material to at least one pressing operation, creating a fiber fraction and a liquid fraction; selecting the temperature and residence time for the hydrothermal pretreatment, so that the fibrous structure of the feedstock is maintained and at least 80% of the lignin is maintained in the fiber fraction.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: February 28, 2012
    Assignee: Inbicon A/S
    Inventors: Borge Holm Christensen, Lena Holm Gerlach
  • Patent number: 8100990
    Abstract: Methods, process, apparatus, equipment, and systems are disclosed for converting biomass into bio-oil fractions for chemicals, materials, feedstocks and fuels using a low-cost, integrated fast pyrolysis system. The system improves upon prior art by creating stable, bio-oil fractions which have unique properties that make them individually superior to conventional bio-oil. The invention enables water and low-molecular weight compounds to be separated into a final value-added fraction suitable for upgrading or extracting into value-added chemicals, fuels and water. Initial bio-oil fractions from the process are chemically distinct, have low-water content and acidity which reduces processing costs normally associated with conventional bio-oil post-production upgrading since fewer separation steps, milder processing conditions and lower auxiliary inputs are required. Biochar is stabilized so that it can be handled safely.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: January 24, 2012
    Assignee: Avello Bioenery, Inc.
    Inventors: Cody James Ellens, Jared Nathaniel Brown, Anthony Joseph Sherwood Pollard, Dennis Stephan Banasiak
  • Publication number: 20110302832
    Abstract: A method is provided for the production of pellets or briquettes from lignin containing material in the form of processable particles wherein the method includes the steps of: passing the material having a relative moisture content of more than about 20%, by weight, to a drying step and drying it to a relative moisture content of about 0-30% by weight; passing the material to a heat treatment step and heating the material to about 180-235° C. by injecting steam into a reactor; maintaining the material in the reactor at the temperature reached for a sufficient time to soften the material and release lignin; reducing the pressure in the reactor in at least one step; and pelletizing or briquetting the treated material. The invention also concerns pellets or briquettes produced by the method.
    Type: Application
    Filed: June 13, 2011
    Publication date: December 15, 2011
    Inventor: Arne Johannes Grønn
  • Publication number: 20110155020
    Abstract: Integrated cement production systems and methods implementing the systems are disclosed, where the integrated cement production systems include a burnable fuel supply subsystem, a cement raw material supply subsystem, a kiln subsystem and a cement clinker composition storage subsystem. The burnable fuel supply subsystem is adapted to receive one or a plurality of used and/or unused healthcare materials. The burnable fuel supply subsystem can feed the materials directly into the kiln subsystem, can convert the materials into different form and feed the different form to the kiln subsystem or feed a combination of the materials, different forms and optionally conventional fuels to the kiln subsystem.
    Type: Application
    Filed: December 29, 2009
    Publication date: June 30, 2011
    Applicant: SHARPS COMPLIANCE, INC.
    Inventors: Burton J. Kunik, James C. Berns, David G. Gossman
  • Patent number: 7967877
    Abstract: An energy product made from biomass, and a method of making an energy product from biomass. The energy product is made by processing biomass in a pressurizable reaction vessel with heat, pressure and agitation.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: June 28, 2011
    Assignee: Biomass Worldwide Group Limited
    Inventors: Anthony P. Noll, Herbert A. Ligon
  • Patent number: 7959692
    Abstract: Compositions for wood pellets including grape vine and methods of making wood pellet compositions including grape vine are described. The wood pellets include wood particles, grape vine particles, and a lubricant. The method includes mixing wood particles and grape vine particles with a lubricant, heating the mixture, and forming the mixture into pellets.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: June 14, 2011
    Assignee: Traeger Pellet Grills LLC
    Inventors: Joseph P. Traeger, Mark A. Traeger, Randolph J Traeger, Brian E. Traeger
  • Publication number: 20110129886
    Abstract: Non-food plant biomass is subjected to hot-water extraction in a pressurized vessel at an elevated temperature up to about 250° C. and at a pH below about 7.0, to yield an aqueous extract containing hemicellulosic components, other wood-derived compounds, and a lignocellulosic residue. The separated aqueous extract or liquor is purified and concentrated through a multi-step process producing fermentable sugars. At each stage, inhibitory chemicals such as acetic acid, lignin, and furfural are separated and eventually recovered as commercial chemicals. The lignocellulosic residue may be further processed, as a material with enhanced resistance to sorption of water, for manufacture of improved pulp and paper, construction materials, pellet fuel, and/or other useful products.
    Type: Application
    Filed: August 5, 2010
    Publication date: June 2, 2011
    Inventors: Joel R. Howard, Thomas E. Amidon, Shijie Liu, Christopher D. Wood
  • Patent number: 7942942
    Abstract: Apparatus for biomass torrefaction which includes a serpentine elongated housing, the housing having three generally U-shaped axial portions having first and second axial extremities and an intermediate section, the first and second axial extremities are disposed in normal use at a higher elevation than the first and second axial extremities, the intermediate section being configured for holding a liquid. Other forms of the invention include the method for biomass torrefaction which includes providing a quantity of biomass, providing a liquid heat transfer fluid, providing at least a first housing for holding the heat transfer liquid, elevating the temperature of the liquid heat transfer liquid, heat treating the biomass by passing it through the heat transfer liquid in the first housing at a temperature and duration sufficient to accomplish torrefaction of the wood. In some forms of the method, the process further includes the step of pelletizing the biomass prior to performing the treating step.
    Type: Grant
    Filed: December 31, 2006
    Date of Patent: May 17, 2011
    Inventor: John A. Paoluccio
  • Publication number: 20110099894
    Abstract: Methods and systems are disclosed for direct conversion of a used healthcare material into a burnable fuel and to burnable fuels derived therefrom.
    Type: Application
    Filed: November 1, 2009
    Publication date: May 5, 2011
    Applicant: SHARPS COMPLIANCE, INC.
    Inventors: Burton J. Kunik, James C. Berns
  • Patent number: 7927388
    Abstract: An apparatus and a method for producing woodfuel briquettes, pellets, compounds, composites, agglomerates, or granulates as source material for subsequent processing in injection molding or extrusion processes, includes a pressing screw with screw spirals, which rotate around a longitudinal axis and which are arranged inside a screw shell. The feed material is conveyed to the pressing screw via a feed chute located at an input side. At the end of the pressing screw, processing tools are arranged, to which the feed material is conveyed by the rotating screw spirals. In the area of the processing tools, the residual moisture in the feed material evaporates due to the heat generated during the processing procedure, and is vented as a steam flow from the apparatus through the screw shell.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: April 19, 2011
    Assignee: Pallmann Maschinenfabrik GmbH & Co. KG
    Inventor: Hartmut Pallmann
  • Publication number: 20100300368
    Abstract: Certain disclosed pellets, briquettes, and other compacted products contain multiple components and have a composition tailored to meet specific requirements for a given application. Frequently, at least one of the components is a biomass component. The compacted biomass products can be used in various applications including power generation, animal bedding, and waste absorbent. One particular embodiment involves using compacted body or mass as a fuel supplement or fuel replacement for coal or other fossil fuel(s) in co-firing power plants. Other specific applications include bedding for various animals including fowl, horses, and rabbits. Another application comprises pelletized absorbents such as cat litter for absorbing liquid and/or solid waste products.
    Type: Application
    Filed: May 25, 2010
    Publication date: December 2, 2010
    Applicant: AMERICAN PELLET SUPPLY LLC
    Inventors: Michael B. Myers, Jay J. Hood
  • Patent number: 7811339
    Abstract: Method and apparatus for fabrication of fuel from form pressed biomass wherein biomass, particularly grass, is dried prior to pressing, for example, into pellets, and use of such fuels, particularly in form of grass pellets, for energy generation.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: October 12, 2010
    Inventor: Hans Werner
  • Publication number: 20100154296
    Abstract: A briquette is comprised essentially of coal particles and solid lignin where the briquette does not include binders other than the lignin. A method of preparing briquettes from coal particles and lignin comprises grinding, drying, mixing, and briquetting. A system of preparing briquettes from coal particles and lignin can either be located proximally to a power plant or delivered by trucks, trains, ships, or air freight to the power plant.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 24, 2010
    Applicant: Clean Coal Briquette, Inc.
    Inventor: Ravi Malhotra
  • Publication number: 20100139156
    Abstract: A Novel fuel object comprised of a proportion of corn stover and a proportion of wood fiber combined with a basically reacting compound. The object comprises fiber of the appropriate size and moisture content combined with an inorganic base. An appropriately sized object is readily manufactured, provides high heat output, is consistent in fuel characteristics, and is sized and configured for use in power generation facilities. Based on fiber selection and processing, the fuel object may be used in a variety of current power generation technologies including stoker, fluidized bed, gasifier, cyclonic, direct-fired, and pulverized coal technologies, and results in significant reduction of air emissions (including sulfur dioxide, nitrogen oxides, hydrochloric acid, carbon monoxide, carbon dioxide, and mercury) compared to coal with no loss of boiler or furnace efficiency.
    Type: Application
    Filed: January 26, 2009
    Publication date: June 10, 2010
    Inventors: JAMES A. MENNELL, William A. Brake, Kenneth G. Oja
  • Publication number: 20100139155
    Abstract: A Novel fuel object comprised of a proportion of switch grass and a proportion of wood fiber combined with a basically reacting compound. The fuel comprises fiber of the appropriate size and moisture content combined with an inorganic base. An appropriately sized fuel object is readily manufactured, provides high heat output, is consistent in fuel characteristics, and is sized and configured for use in power generation facilities. Based on fiber selection and processing, the fuel object may be used in a variety of current power generation technologies including stoker, fluidized bed, gasifier, cyclonic, direct-fired, and pulverized coal technologies, and results in significant reduction of air emissions (including sulfur dioxide, nitrogen oxides, hydrochloric acid, carbon monoxide, carbon dioxide, and mercury) compared to coal with no loss of boiler or furnace efficiency.
    Type: Application
    Filed: January 26, 2009
    Publication date: June 10, 2010
    Inventors: James A. Mennell, William A. Brake, Kenneth G. Oja
  • Publication number: 20090320358
    Abstract: For manufacture of solid fuels by solidifying processing-object materials containing plastics, waste paper and waste wood, the processing-object materials inputted through an input port 12 are subjected to water injection so that their water content becomes 15 wt % or more, preferably 20 wt % or more, and then kneaded, compacted and extruded in three turns or less, being extruded from molding nozzles 53 of an end face plate 5. The water injection is performed by a water injection nozzle 31 from the input port 12 into a casing 11. Opening and closing of a solenoid valve 33 interposed on a water injection pipe 32 adjoining the water injection nozzle 31 is controlled based on a signal S1 derived from a temperature sensor 55 provided at a molding nozzle 53 of the end face plate.
    Type: Application
    Filed: July 26, 2007
    Publication date: December 31, 2009
    Applicant: Mike Tekkou Kabushikigaisha
    Inventor: Yoshikazu Kobayashi
  • Patent number: 7628826
    Abstract: An artificial firelog and firestarter chip producing apparatus comprising a cutting assembly, a compression conveyor auger assembly and a die. The apparatus converts standard waxed corrugated cardboard boxes into artificial firelogs by first slicing cardboard sheets into cardboard strips, then chopping the cardboard strips into cardboard segments in the cutting assembly. The cardboard segments are compressed and in the compression conveyor auger assembly and extruded in the die to form generally circular, longitudinally-shaped sections of a firelog. Firestarter chips are fabricated by the cutting assembly, which slices cardboard sheets in conjunction with paper sheets into cardboard and paper strips, then chopping the cardboard strips into cardboard segments and the paper strips into paper mix.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: December 8, 2009
    Assignee: Clean Heat, LLC
    Inventors: Gregory J. Peterson, Gary M. Flint
  • Patent number: 7628825
    Abstract: An artificial firelog and firestarter chip producing apparatus comprising a cutting assembly, a compression conveyor auger assembly and a die. The apparatus converts standard waxed corrugated cardboard boxes into artificial firelogs by first slicing cardboard sheets into cardboard strips, then chopping the cardboard strips into cardboard segments in the cutting assembly. The cardboard segments are compressed and in the compression conveyor auger assembly and extruded in the die to form generally circular, longitudinally-shaped sections of a firelog. Firestarter chips are fabricated by the cutting assembly, which slices cardboard sheets in conjunction with paper sheets into cardboard and paper strips, then chopping the cardboard strips into cardboard segments and the paper strips into paper mix.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: December 8, 2009
    Assignee: Clean Heat, LLC
    Inventors: Gregory J. Peterson, Gary M. Flint
  • Publication number: 20090235578
    Abstract: The invention relates to a compressed fuel composed of organic residues and/or raw materials having at least one additive for increasing the calorific value and for decreasing slag formation, which fuel consists of a fuel mixture which contains a) 72 to 83% by weight combustible organic residues and/or raw materials having a moisture of 8 to 20%, b) 15 to 25% by weight natural organic oils and/or fats for increasing the calorific value and c) 2 to 3% by weight sodium perborate for increasing the ash melting point and as oxygen supplier. As organic residues and/or raw materials, use is made of comminuted and naturally aged or artificially aged (by UV irradiation or by the addition of 0.1-0.
    Type: Application
    Filed: September 21, 2007
    Publication date: September 24, 2009
    Inventor: Herbert Georg Nopper
  • Publication number: 20090223119
    Abstract: A method for production of fuel pellets from a biological material, preferably saw dust, wood or similar, where the method comprises the following steps: supplying the material to a drying step (1) and dry the material to a relative humidity from 40-65 weight-percent to 30-45 weight-percent; supplying the material from the dryer step (1), optionally via an intermediate storage step (2), to a reactor step (3, 3?) and heat the material to 200-300° C. by supply of steam; keeping the material in the reactor at the achieved temperature in sufficient time to soften the material; reducing the pressure of the reactor step (3,3?) in at least two steps, in order to defibrate the material and release of lignin, and supply the material from the reactor step (3,3?) to an additional drying step (5), optionally via an intermediate storage step (4), and optionally pelletizing of the material.
    Type: Application
    Filed: June 16, 2005
    Publication date: September 10, 2009
    Applicant: ARBAFLAME TECHNOLOGY AS
    Inventors: Rune Brusletto, Odd E Solheim, Hans Rasmus Holte
  • Publication number: 20090183424
    Abstract: This invention discloses systems and methods for conversion of high moisture waste materials to dry or low moisture products for recycle or reuse. The equipment systems comprise a gas turbine generator unit (preferred heat source), a dryer vessel and a processing unit, wherein the connection between the gas turbine and the dryer vessel directs substantially all the gas turbine exhaust into the dryer vessel and substantially precludes the introduction of air into the dryer vessel and wherein the processing unit forms the dried material from the dryer vessel into granules, pellets or other desired form for the final product. Optionally, the systems and methods further provide for processing ventilation air from manufacturing facilities to reduce emissions therefrom.
    Type: Application
    Filed: March 27, 2009
    Publication date: July 23, 2009
    Applicant: EARTHRENEW, INC.
    Inventors: Brian N. Gorbell, Christianne Carin, Alvin W. Fedkenheuer, John S. Jonasson, Alexander Starosud
  • Patent number: 7540890
    Abstract: A processed solid fuel composition incorporating agents for destroying creosote and soot within flue ducts and chimneys of fireplaces, solid fuel stoves and other heating devices is disclosed, along with a method for its manufacture and a method for its use. The composition is made up of a combination of compressed cellulosic particulate material and a chemical and/or catalytic creosote and soot removing agent, and is molded in the form of a fire log in the preferred embodiment. The composition may be used alone, but is ideally applied to an active fire to treat a chimney flue by combined heating and chemical disaggregation of accumulated creosote and soot deposits.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: June 2, 2009
    Inventor: Clark Schaefer
  • Publication number: 20090100751
    Abstract: A direct-burning grill smoking composition for imparting the flavor of a selected hardwood to a grilled food product contains a quantity of particles of the selected hardwood distributed in a solid matrix formed by partially dehydrating a slurry containing the hardwood particles and a binder dispersed in water. Following ignition, the grill smoking composition continues to smolder without the need for application of further heat until the grill smoking composition is reduced to ashes.
    Type: Application
    Filed: October 19, 2007
    Publication date: April 23, 2009
    Inventor: Gary Warren Smith
  • Patent number: 7517371
    Abstract: The present invention relates to flavored wood pellets and a method of making flavored wood pellets. The wood pellets of this invention include wood particles, lubricant, and wood oil. Another aspect of the invention is a method that includes mixing wood particles with lubricant and wood oil, heating the mixture, and forming the mixture into pellets.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: April 14, 2009
    Assignee: Traeger Pellet Grills, Inc.
    Inventors: Joseph P. Traeger, Mark A. Traeger, Randolph J. Traeger, Brian E. Traeger
  • Publication number: 20090077871
    Abstract: A process to obtain low molecular weight polyphenols, medium molecular weight polyphenols, and a standardized solid fuel from tree bark or wood that includes the stages of: bark grinding; solid-liquid extraction from the bark using a low molecular weight aliphatic; concentration of the extract, to recover the aliphatic alcohol used in the extraction; decantation, filtration and/or centrifugation, in order to separate the solid and liquid phases of the extract; drying of the soluble fraction in water of the hydroalcoholic extract; drying of the insoluble fraction in water; separation of the fine fraction of the bark extracted in a sieve and/or air fractionation system.
    Type: Application
    Filed: May 5, 2008
    Publication date: March 26, 2009
    Inventors: Alex Berg Gebert, Leonardo Olave Pozo, Paola Navarrete Fuentes
  • Publication number: 20090056206
    Abstract: A solid fuel is formed in a cuber to form body pieces formed of materials extruded through a die with a density greater than 35 lbs/cu ft; an energy content greater than 6500 BTU/lb; transverse dimensions less than 1.5 inches; and a length less than 4 inches; from plant biomass material which contains components when extended of greater than 1.0 inch. Primarily the materials are paper or other cellulose product and crop residue such as wheat straw. The cellulose and lignin from these materials act without additional binders as binders and encasing materials. The moisture content is maintained at a target value by mixing selected quantities of the materials without drying. The cubing machine has a feeding system where the space between the inner rotor and outer casing is smaller than 4 inches and the height of the outer flight is less than 1 inch.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 5, 2009
    Inventors: Stephane Gauthier, Eugene Gala, Roger Balcean, Shaughn Broesky, Pierre Nadeau
  • Publication number: 20090049741
    Abstract: According to the invention, unpurified biodiesel is brought in contact with cellulose-containing material by continuously and/or discontinuously mixing the same in order to eliminate the glycerin and catalyst residues, such as potassium soaps, accumulated during the production of the biodiesel. A system for carrying out said method comprises an agitated sedimentation tank (1) with a conduit (4,5) for delivering purified biodiesel into the agitated sedimentation tank (1) and a conveying device (6) for feeding cellulose-containing material into the agitated sedimentation tank (1). A drive unit (51) for an agitator (50) is disposed in the agitated sedimentation tank (1). A conduit (16, 20) extends from the agitated sedimentation tank (1) to at least one static sedimentation tank (2, 3). A valve (13) via which solid matter can be discharged from the agitated sedimentation tank (1) is mounted in the area of the bottom of the agitated sedimentation tank (1).
    Type: Application
    Filed: November 16, 2006
    Publication date: February 26, 2009
    Applicant: BIODIESEL ENGINEERING LIMITED
    Inventor: Alfred Moser
  • Patent number: 7384435
    Abstract: The invention concerns a method for preparing organic waste, such as coffee grounds (12), so as to eliminate it by combustion. Said method consists in mixing the waste (12) with a silicic acid additive (14), the proportion of additive ranging between 3 and 5% to constitute a fuel.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: June 10, 2008
    Inventors: Manouk Der Stepanian, Christian Assoun
  • Patent number: 7252691
    Abstract: A combustible pellet comprising municipal solid waste. The pellet has a water content of less than 10% by weight and a fuel value of at least 10,000 BTU. A process for the forming of a combustible pellet from municipal solid wastes, comprising the steps of removing solid hazardous waste from said municipal solid waste; subjecting the municipal solid waste so obtained to at least one step to separate recyclable products therefrom; and subjecting the resultant product to a shredding and a pulverizing step. A fluff with a water content of less than 10% by weight is obtained. The fluff is compacted to form a combustible pellet.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: August 7, 2007
    Inventor: John Philipson
  • Patent number: 7241321
    Abstract: An organically clean biomass fuel formed of mixture of a powder, which may be either dried, cellulosic product, wood charcoal powder, and/or a combination of the two, and a fluid, which may be vegetable oil, vegetable alcohol or a combination of the two. A centrifugal machine dries moist, cellulosic product and extracts black liquor. A grinder transforms the dried, cellulosic product into powder. Gum may be extracted from the vegetable oil or vegetable alcohol. A batch mixer or vibrating vessel mixes the powder and the fluid together; the fluid moisturizes the powder. Depending upon the relative amount of the fluid as compared to powder, the mixture will either be in a liquid cream state or a doughy state. If the latter, the mixture may be pressed into briquettes or ingots.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: July 10, 2007
    Assignee: Ecoem, LLC
    Inventor: Philippe R. Murcia
  • Patent number: 7172636
    Abstract: A combustible wood-based package is disclosed which includes an outer wrapper, preferably formed from burlap or other similar woven material that encloses large pieces of wood material, medium pieces of wood material and smaller pieces of wood material coated or otherwise soaked in a vegetable wax to form an aggregate. The aggregate is disposed at or near the bottom of the burlap wrapper, with the medium-size pieces of wood material disposed thereon with the larger pieces of wood material disposed on top of the medium-sized pieces of wood material. Preferably, all wood materials are fabricated from all-natural wood logs fabricated from compressed wood particles without the use of odor causing binders.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: February 6, 2007
    Assignee: Summit Views LLC.
    Inventors: Gregg D. Weissman, Jennifer J. Young
  • Patent number: 6913631
    Abstract: This invention relates to a solid combustible element and a method for manufacturing it, whereby in the element an open or closed internal space is provided, and in this space is placed a chemical product for disintegrating a combustion deposit layer. When burning this element in a combustion device, such as e.g. a hearth or a stove, the product is released so that a combustion deposit layer (e.g. consisting of soot, ash and tar) formed on the walls of the combustion device or the smoke flue is disintegrated. The element is preferably formed by compressing an amount of loose particles of one or several solid combustible materials, such as among others wood waste and sawdust, without adding any binding agent. Such an element can be manufactured at lower raw material and production costs than the known elements in which such a product is incorporated.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: July 5, 2005
    Assignee: NV Behoko
    Inventor: Christophe Lefevre
  • Patent number: 6902589
    Abstract: The invention relates to a method for producing shaped, activated charcoal. According to the method, after being ground, carbon-bearing material, or a mixture of several carbon-bearing materials are rendered homogenous with a binding agent which contains water, or a mixture of several binding agents, at least one of which contains water. The mixture of carbon-bearing material and binding agent is then formed into shaped bodies. According to the invention, in order to consolidate the grain formation, these are dried until they exhibit a maximum total water content of 3% by wt. in relation to the shaped body. The shaped bodies which have been formed and dried in this manner are then subjected to a carbonization and subsequently a gas activation process.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: June 7, 2005
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Joachim Guderian, Volker Heil, Christian Horn, Michael Feseker, Jens Sohnemann
  • Patent number: 6840764
    Abstract: An apparatus and process for producing charcoal in a kiln from hardwood. The kiln is constructed over an array of hardwood logs supported on a suitable platform. Fill material is used to form a surrounding jacket surrounding the hardwood, a sawdust layer is applied over the surrounding jacket, and an airtight layer of clay earth and sand is applied over the sawdust layer. An ignition access port is provided through the several layers to allow ignition and combustion of the hardwood, after which the access port is closed to prevent air from entering the interior of the kiln during burning of the hardwood. After a predetermined burning time, the kiln and its contents are allowed to cool, and the filler, clay earth, sand and any remaining debris are removed from the hardwood. The hardwood is then cooled a second time, and then cooled a third time by stifling the hardwood, such as in a cooling box capped with earth.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: January 11, 2005
    Inventor: Eugene Kennedy
  • Patent number: 6818027
    Abstract: An organically clean biomass fuel formed of mixture of a powder, which may be either dried, cellulosic product, wood charcoal powder, and/or a combination of the two, and a fluid, which may be vegetable oil, vegetable alcohol or a combination of the two. A centrifugal machine dries moist, cellulosic product and extracts black liquor. A grinder transforms the dried, cellulosic product into powder. Gum may be extracted from the vegetable oil or vegetable alcohol. A batch mixer or vibrating vessel mixes the powder and the fluid together; the fluid moisturizes the powder. Depending upon the relative amount of the fluid as compared to powder, the mixture will either be in a liquid cream state or a doughy state. If the latter, the mixture may be pressed into briquettes or ingots.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: November 16, 2004
    Assignee: Ecoem, L.L.C.
    Inventor: Philippe R. Murcia
  • Patent number: 6793697
    Abstract: A solid fuel composition of spent coffee grounds and/or green coffee bean waste, sawdust and a wax binder is useful for manufacturing a fire-log with more flame output. This combination of solid particulate together with wax burns with a natural-sounding sizzling and crackling. The fuel composition also develops cracks as it burns, in much the same way as natural wood logs do. The cracks expose more surface area to combustion air, thereby enhancing flame output.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: September 21, 2004
    Inventors: Rodney K. Sprules, Joanne M. Johnson
  • Patent number: 6790317
    Abstract: A low-energy input process for the pyrolytic conversion of biomass to charcoal or carbonized charcoal is provided. The biomass is sealed in a container, pressurized with air and heated to ignition. Control of pressure by input of air and release of gases to maintain successively lower pressure levels results in a typical time for the conversion of less than 30 minutes.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: September 14, 2004
    Assignee: University of Hawaii
    Inventor: Michael J. Antal, Jr.
  • Patent number: 6780210
    Abstract: A process for making a fuel product from paper mill sludge including dewatering the paper mill sludge so as to have a solids content of greater than 7 percent by weight, mixing an oxide-containing chemical and molasses with the dewatered paper mill sludge, pressurizing the mixed sludge to a pressure of greater than 6 p.s.i. for a period of time of no less than 15 seconds, and drying the pressurized mixed sludge to no less than 60 percent solids by weight. The oxide-containing chemical can be either calcium oxide or calcium hydroxide. The oxide-containing chemical is mixed in an amount of between 1 percent to 10 percent by weight of the dewatered paper mill sludge. The molasses is mixed in an amount of between 0.1 percent and 1 percent by weight of the dewatered paper mill sludge. The method also includes grinding the dried sludge to a desired size of no less than 325 mesh and no larger than one-quarter inch in diameter. The dried sludge has a heating content of no less than 5,000 BTUs/pound.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: August 24, 2004
    Inventors: Edward E. Boss, Samuel L. Shepherd
  • Patent number: 6719816
    Abstract: An artificial firelog is provided comprising combustible cellulosic material, a combustible wax binder and an amount of sodium bicarbonate effective to reduce emissions of particulate matter (PM) and carbon monoxide (CO). The sodium bicarbonate comprises about 1% to about 10% by weight of the artificial firelog. Preferably, the sodium bicarbonate comprises about 2% to about 5% by weight of the artificial firelog. Besides substantially reducing PM and CO emissions during combustion of the artificial firelog, the undesirable odor associated with combustion of the wax binder is decreased and the firelog's total burn time is extended. Moreover, the sodium bicarbonate increases the “poke resistance” of the firelog making the log suitable for outdoor use and a natural appearing white ash develops during the course of combustion.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: April 13, 2004
    Assignee: Duraflame, Inc.
    Inventor: Eric D. Barford
  • Patent number: 6716260
    Abstract: An artificial firelog and firestarter chip producing apparatus comprising a cutting assembly, a compression conveyor auger assembly and a die. The apparatus converts standard waxed corrugated cardboard boxes into artificial firelogs by first slicing cardboard sheets into cardboard strips, then chopping the cardboard strips into cardboard segments in the cutting assembly. The cardboard segments are compressed and in the compression conveyor auger assembly and extruded in the die to form generally circular, longitudinally-shaped sections of a firelog. Firestarter chips are fabricated by the cutting assembly, which slices cardboard sheets in conjunction with paper sheets into cardboard and paper strips, then chopping the cardboard strips into cardboard segments and the paper strips into paper mix.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: April 6, 2004
    Inventors: Gregory J. Peterson, Gary M. Flint
  • Patent number: 6716259
    Abstract: An artificial firelog and firestarter chip producing apparatus comprising a cutting assembly, a compression conveyor auger assembly and a die. The apparatus converts standard waxed corrugated cardboard boxes into artificial firelogs by first slicing cardboard sheets into cardboard strips, then chopping the cardboard strips into cardboard segments in the cutting assembly. The cardboard segments are horizontally disposed between the rifling and compressed in the compression conveyor auger assembly and extruded in the die to form generally horizontally disposed, circular, longitudinally-shaped sections of a firelog. Firestarter chips are fabricated by the cutting assembly, which slices waxed cardboard sheets in conjunction with paper sheets into waxed cardboard and paper strips, then chopping the waxed cardboard strips into waxed cardboard segments and the paper strips into paper segments and waxed cardboard segments mix.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: April 6, 2004
    Inventors: Gregory J. Peterson, Gary M. Flint
  • Patent number: 6692544
    Abstract: Mechanically and biologically stable briquettes and pellets are obtained from either municipal solid waste (MSW), Refuse Derived Fuel (RDF) or municipal sewage sludge and their combination for purposes of disposing said briquettes and pellets as fuel in waste-to-energy processes such as the one described herein or to form geometric aggregates with such briquettes for their disposal at landfill sites. The use of binding material is not required whereas fuel additives such as crushed coal and petroleum residues may be added to enhance fuel performance but are not needed to improve waste processing or product stability and mechanical properties.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: February 17, 2004
    Assignee: Ecosystems Projects, LLC
    Inventor: Mauro Grillenzoni
  • Patent number: 6635093
    Abstract: The invention relates to a method of making pelletized fuel containing plastic and cellulose particles in which a feed stream containing plastic and cellulose particles is supplied to a pelletizing device. The process is used in particular in processes for recycling household and industrial waste streams into pelletized fuel. The invention also relates to pelletized fuel, to the use of the pelletized fuel as secondary fuel and to various methods of firing furnaces with the pelletized fuel. The process according to the invention is characterized in that the feed stream contains at least 40 wt. % plastic and the pelletizing device has an annular mould with holes whose effective hole length (L) and hole diameter (D) ratio (R) is at least 5. Besides a high calorific value, the pelletized fuel obtained has a good hardness, good bulk, storage and transport properties and a good grindability.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: October 21, 2003
    Assignee: DSM N.V.
    Inventors: Löwhardt A. A. Schoen, Anton R. Christoffel