Retorts Patents (Class 48/119)
  • Publication number: 20040006917
    Abstract: A fuel preparation apparatus in which coal or coal and other carbon containing material is converted to an environmentally acceptable fuel gas by the reaction with air and steam at a pressure of from 20 to 90 pounds per square inch absolute suitable for providing fuel to a gas turbine, or a stoker type or other boiler having a coal delivery system, a coal crusher, coal storage bins, lock hoppers, a gasifier vessel of two stages, liquid and solid separator vessels, heat and steam recovery vessels, equipment to control the flow of steam and air to the gasifier so as to maintain fuel quality, and a gas clean up plant that will remove environmentally unacceptable components of the gas such as hydrogen sulphide and other sulphur containing compounds and tars and light oils.
    Type: Application
    Filed: July 9, 2002
    Publication date: January 15, 2004
    Inventors: David W. Wakefield, Robert Glover Jackson
  • Patent number: 6648931
    Abstract: A turbine produces in an improved gasification process a stream of pressurized air, which is cooled and further compressed by a cooler and booster/compressor. The cooled and compressed air is humidified in a humidifier, heated by a low temperature heat source and subsequently fed into a gasification vessel in which a feedstock is gasified or partially oxidized. The humidifier may advantageously utilize wastewater to humidify the cooled and compressed air, wherein the wastewater may or may not be produced by a component in a gasification plant.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: November 18, 2003
    Assignee: Fluor Corporation
    Inventor: Ashok Rao
  • Patent number: 6648932
    Abstract: A gasification reactor apparatus (10) comprising a gasification vessel (12), a gas-fired combustion chamber (70) and a combination fan and cyclone unit (20) in an upper part (12′) of the vessel (12) with two functions: first, the fan (62, 64) impels incoming feedstock (14, 14′) centrifugally into contact with the hot inside surface of the vessel to produce rapid onset of gasification. Second, the unit (20) exerts a cyclonic motion on the product gas causing outward separation of particulate matter from the gas, which passes to the outlet via a path through the middle of the vessel (12).
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: November 18, 2003
    Assignee: Graveson Energy Management Ltd.
    Inventor: Maurice Edward George Maton
  • Patent number: 6641625
    Abstract: A hydrocarbon reformer system including a first reactor configured to generate hydrogen-rich reformate by carrying out at least one of a non-catalytic thermal partial oxidation, a catalytic partial oxidation, a steam reforming, and any combinations thereof, a second reactor in fluid communication with the first reactor to receive the hydrogen-rich reformate, and having a catalyst for promoting a water gas shift reaction in the hydrogen-rich reformate, and a heat exchanger having a first mass of two-phase water therein and configured to exchange heat between the two-phase water and the hydrogen-rich reformate in the second reactor, the heat exchanger being in fluid communication with the first reactor so as to supply steam to the first reactor as a reactant is disclosed. The disclosed reformer includes an auxiliary reactor configured to generate heated water/steam and being in fluid communication with the heat exchanger of the second reactor to supply the heated water/steam to the heat exchanger.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: November 4, 2003
    Assignee: Nuvera Fuel Cells, Inc.
    Inventors: Lawrence G. Clawson, Matthew H. Dorson, William L. Mitchell, Brian J. Nowicki, Johannes Thijssen, Robert Davis, Christopher Papile, Jennifer W. Rumsey, Nathan Longo, James C. Cross, III, Vincent Rizzo, Gunther Kleeburg, Michael Rindone, Stephen G. Block, Maria Sun, Brian D. Morriseau, Mark R. Hagan, Brian Bowers
  • Publication number: 20030182861
    Abstract: The present invention provides a method for carrying out high temperature thermal dissociation reactions requiring rapid-heating and short residence times using solar energy. In particular, the present invention provides a method for carrying out high temperature thermal reactions such as dissociation of hydrocarbon containing gases and hydrogen sulfide to produce hydrogen and dry reforming of hydrocarbon containing gases with carbon dioxide. In the methods of the invention where hydrocarbon containing gases are dissociated, fine carbon black particles are also produced. The present invention also provides solar-thermal reactors and solar-thermal reactor systems.
    Type: Application
    Filed: March 7, 2003
    Publication date: October 2, 2003
    Inventors: Alan W. Weimer, Jaimee K. Dahl, Allan A. Lewandowski, Carl Bingham, Karen J. Raska Buechler, Willy Grothe
  • Publication number: 20030150163
    Abstract: A fuel reforming method includes the step of supplying carbon-containing fuel and steam to a reactor filled with a fuel reforming catalyst and a CO2 absorbent and discharging CO2, and setting the absorbent at an absorption temperature, thereby converting the carbon-containing fuel into reformed fuel, and separating CO2 from the reformed fuel, the step of obtaining a product gas by oxidizing a portion of the reformed fuel and/or the carbon-containing fuel with an oxidizer, and heating the absorbent with this product gas to a regeneration temperature, thereby regenerating the absorbent and storing heat in this absorbent, and the step of supplying the carbon-containing fuel and steam to the reactor, thereby cooling, to the absorption temperature, the absorbent heated to the regeneration temperature, and converting the carbon-containing fuel into reformed fuel by heat energy stored in the CO2 absorbent. An apparatus for the method is also disclosed.
    Type: Application
    Filed: January 24, 2003
    Publication date: August 14, 2003
    Inventors: Keiji Murata, Kazuaki Nakagawa, Yoshikazu Hagiwara, Kazuya Yamada, Mitsutoshi Hamamura, Yasuhito Sakakibara, Hidetsugu Fujii
  • Publication number: 20030150161
    Abstract: An apparatus and a method fractionate solid fuels, especially whole tires, into metal as well as volatiles and coal to be used as alternative fuels. The apparatus includes a feeding zone wherein the solid fuels are fed to the apparatus, a gasifying zone into which the solid fuels are processed, obtaining a gaseous fraction, coal, and metal; cooled grills controlling the bed permeability and permanence time of the solid fuels at the gasifying zone; and a discharging zone into which the resultant coal and metal are discharged, in which the solid fuel coal and solid and gaseous fractions follow a path inside the apparatus through the feeding zone, the gasifying zone and discharging zone, and in which the gases inside the apparatus follow a path that is co-current with the solid fuel fractions path inside the apparatus.
    Type: Application
    Filed: August 26, 2002
    Publication date: August 14, 2003
    Inventors: Armando Garcia-Segovia, Luis Ramon Farias-Martinez, Jose Javier Garza-Ondarza, Jorge Berrun-Castanon, Hector Agustin Cantun-Martinez, Angel Cuevas-Martinez
  • Publication number: 20030140558
    Abstract: The refractory protected, replaceable insert for a gasifier includes a replaceable floor edge insert that is formed with a predetermined mating profile that is complementary to a finished mating profile of the gasifier floor. The geometry of the mating profiles of the replaceable floor edge insert and the gasifier floor permit removable engagement between the floor edge insert and the mating profile of the gasifier floor. The replaceable floor edge insert is protected by a ring-like arrangement of hanging refractory bricks that each include an appendage. Each brick appendage covers a portion of the inner radial edge of the replaceable floor edge insert and also covers an upper surface portion of an underlying quench ring, thus prolonging the life of the floor and the quench ring. A refractory ceramic fiber paper can be provided between the hanging brick and the floor edge and quench ring.
    Type: Application
    Filed: January 16, 2003
    Publication date: July 31, 2003
    Applicant: Texaco Development Corporation and Texaco, Inc.
    Inventors: John Corwyn Groen, John D. Winter
  • Publication number: 20030140559
    Abstract: A method serves for the pyrolysis and gasification of substance mixtures containing organic constituents. The organic substances (4) or the substance mixture containing the organic constituents are brought into contact with a heat transfer medium, for preference the ash (5) from a combustion reactor (2) in a pyrolysis reactor (1), for preference a shaft reactor and pyrolysed. The pyrolysis coke (10) derived from the pyrolysis is combusted in a combustion reactor (2), for preference a fluidised bed reactor, under the admission of air (11).
    Type: Application
    Filed: January 10, 2003
    Publication date: July 31, 2003
    Inventors: Wolfgang Krumm, Gunter Funk, Stefan Hamel, Christian Mertens
  • Publication number: 20030131533
    Abstract: An apparatus for a hydrocarbon reforming process includes a combustion chamber, a convection chamber in fluid communication with the combustion chamber, at least one burner disposed in the combustion chamber, a reaction chamber, a means for flowing a first mixed-feed through a first part of the reaction chamber, and a means for flowing a second mixed-feed through an annular portion of a second part of the reaction chamber, the second part being a tube-in-tube in fluid communication with the first part. The burner(s) generates a flow of a flue has having a sensible heat from the combustion chamber to the convection chamber. The flow of the flue has in the convection chamber is counter-currently with the flow of the second mixed-feed.
    Type: Application
    Filed: January 14, 2002
    Publication date: July 17, 2003
    Inventors: Hoanh Nang Pham, Shoou-I Wang, David Hon Sing Ying, Kevin Boyle Fogash
  • Patent number: 6585785
    Abstract: A fuel processor apparatus comprising a catalytic tubular reactor is heated using an infrared radiant burner to provide the endothermic heat of reaction needed to reform a mixture of hydrocarbon and steam for the production of a hydrogen-rich gas stream. The hydrogen-rich gas stream is further purified using a sequence of catalytic steps that is fed to a fuel cell whereupon a portion of the hydrogen contained in the gas stream is consumed for the production of electricity by electrochemical reaction with oxygen. An unused portion of the purified hydrogen-rich gas stream exits the fuel cell stack and is combusted in the infrared radiant burner. A fuel cell control system rapidly responds to a variable fuel cell electric demand by adjusting the feed of hydrocarbon to the catalytic tubular reactor to maintain the surface temperature of the infrared radiant burner within defined limits.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: July 1, 2003
    Assignee: Harvest Energy Technology, Inc.
    Inventors: David W. Warren, Michael B. Donahue
  • Publication number: 20030115799
    Abstract: A reactor for autothermal reforming of hydrocarbons that allows a reduction of excess-air factor &phgr; during the reforming without resulting in a reduced conversion of the hydrocarbons in an end region of the reaction zone. The reactor includes at least one reaction zone in which is arranged at least one catalyst structure for the reformation so that the educts involved in the reformation are converted while flowing through the reaction zone. A heating device is included for heating the end region of the reaction zone to accelerate the conversion of the hydrocarbons.
    Type: Application
    Filed: December 4, 2002
    Publication date: June 26, 2003
    Applicant: DaimlerChrysler AG
    Inventors: Andreas Docter, Bernhard Vogel, Steffen Oliver Wieland
  • Publication number: 20030118489
    Abstract: A housing containing two or more individual operating components called modules is disclosed. The modules themselves are independently contained in one or more vessels with attendant connectivity structures such as pipes, tubes, wires and the like. Each such vessel or device is configured to conduct at least one unit reaction or operation necessary or desired for generating or purifying a hydrogen enriched product gas formed from a hydrocarbon feed stock. Any vessel or zone in which such a unit operation is conducted, and is separately housed with respect at least one other vessel or zone for conducting a unit operation, is considered a module.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 26, 2003
    Inventors: Mark R. Hagan, William F. Northrop, Jian Lian Zhao
  • Publication number: 20030101651
    Abstract: A process for an endothermic reaction includes the steps of carrying out an exothermic reaction in which a fuel is combusted to generate heat for transfer to a feedstock subject to an endothermic reaction, the waste heat from the exothermic and endothermic reactions being transferred to at least three fluid streams within a single heat recovery zone downstream of the endothermic and exothermic reactions, the apparatus therefor being contained within a single vessel.
    Type: Application
    Filed: November 18, 2002
    Publication date: June 5, 2003
    Inventor: Geoffrey G. Weedon
  • Publication number: 20030101650
    Abstract: A reformer that includes a housing including a tubular member and an end plate member hermetically joined to the tubular member. The housing defines within it a first fluid flow path and a second fluid flow path in a heat exchanging relationship with each other. A reforming catalyst is disposed within the first fluid flow path. The tubular member has a tubular end, and the end plate member has an abutting rim that contacts with and extends along the tubular end of the tubular member and that is folded together over an entire circumference thereof to define a folded hermetic seam between the tubular member and the end plate member. The reformer can be low-priced and it manufacture is easy and efficient.
    Type: Application
    Filed: November 8, 2002
    Publication date: June 5, 2003
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tatsunori Okada, Kenji Kawaguchi, Hideo Ichimura
  • Publication number: 20020100216
    Abstract: Procedure and system for the production of hydrogen from methane or other gaseous hydrocarbon, in which the methane is decomposed at high temperature in the presence of a catalyst supplying hydrogen and carbon.
    Type: Application
    Filed: January 23, 2002
    Publication date: August 1, 2002
    Inventors: Piero Colombani, Ernesto Cremonesi
  • Patent number: 6270542
    Abstract: A heating furnace for home and industrial use, having the ability to catalyze fuel oil to produce fuel gas for external applications. The heat produced can be radiated, or can be circulated by a heated air or heated water system.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: August 7, 2001
    Inventor: Harry E. Naylor
  • Patent number: 5993751
    Abstract: Embodiments of a pyrolizer are disclosed in which carbonaceous materials are pyrolyzed in a two stage process. In the first stage the materials are moved through a pretreater using augers and are heated to between 180 and 220 degrees C. In the second stage the materials are moved through a pyrolysis reactor using augers and are heated to between 500 and 1,100 degrees C.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: November 30, 1999
    Inventors: Jack Moriarty, Bill Moriarty, Nathan Moriarty
  • Patent number: 5205225
    Abstract: Apparatus for allowing thermal dimensional changes of metal parts in a retort mechanism including, a retort chamber, a retort pipe axially extending within the retort chamber and having a material inlet and outlet portion, a retort auger axially extending from the inlet portion to the outlet portion of the retort pipe, the retort pipe having an outer end wall at the inlet end thereof, the retort auger being fixed to the outer end wall so as to be rotatable within the retort pipe, the retort pipe, retort auger and outer end wall being mounted so as to be axially slidable within the retort chamber in response to thermal expansion, and a circumferential seal mounted on the retort chamber and in contact with the retort pipe so as to maintain a sealing relationship during axial sliding.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: April 27, 1993
    Assignee: Covenant Environmental Technologies, Inc.
    Inventor: Isaac H. Milsap, III
  • Patent number: 4980029
    Abstract: Gaseous, liguid and solid fuels are recovered from carbonaceous organic waste material by treating charges of waste material in several successive stages including preheating, drying and conversion into solid and gaseous phases, all as a result of heating in a common vessel or in two or three successive vessels. The solid phases are thereupon cooled prior to admission into a bin, either in a separate vessel or in the vessel for conversion into solid and gaseous phases. The gaseous phases are treated to separate oil from reaction water, combustible gases and inert gases. The charges are heated from without and are sealed from the atmosphere during all four stages of treatment. Each charge is mixed during heating and the intensity of mixing action, the heating action and/or the pressure in the vessel can be varied during one or more stages.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: December 25, 1990
    Assignee: Alfred Bolz GmbH & Co. KG
    Inventors: Alfred Bolz, Gunther Boos
  • Patent number: 4116810
    Abstract: Hot, non-oxygenous gas at carefully controlled quantities and at predetermined depths in a bed of lump oil shale provides pyrolysis of the contained kerogen of the oil shale, and cool non-oxygenous gas is passed up through the bed to conserve the heat inventory for a viable process. The bed being fed at the top with raw shale and retorted shale being removed at the bottom provides a constant depth, continuously moving bed of shale, for a continuous process.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: September 26, 1978
    Assignee: Paraho Corporation
    Inventors: John B. Jones, Jr., Adam A. Reeves