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| Number | Title | Issue Date |
| 7988754 | Process for producing clean liquid fuels from coal waste The present invention is directed to a process for producing ultra clean liquid fuel from abandoned mine waste. A feedstock is prepared from water and coal mine waste having relatively high ash (non-carbonaceous matter) content. Foundry slag is added to the feedstoc... | 08/02/2011 |
| 7303597 | Method and apparatus for continuously feeding and pressurizing a solid material into a high pressure system A system for substantially continuously providing a solid material, for example pulverized coal, to a pressurized container. The system provides the solid material to a first container of a first pressure elevated above an initial pressure of the solid material. Gen... | 12/04/2007 |
| 7288234 | Glycols as an adjuvant in treating wastes using the Molten Salt Oxidation process An improved system and method for using polyethylene glycol (PEG) as a processing fluid additive for safely and effectively treating water-wet hogout propellant as well as any other water-wet propellants, explosives and hazardous wastes (solids and liquids) to make ... | 10/30/2007 |
| 7247281 | Methanation assembly using multiple reactors A methanation assembly for use with a water supply and a gas supply containing gas to be methanated in which a reactor assembly has a plurality of methanation reactors each for methanating gas input to the assembly and a gas delivery and cooling assembly adapted to ... | 07/24/2007 |
| 7232472 | Method for the treatment of coal A method and apparatus for the treatment of coal to form a product gas such as methane (CH4), and a high purity carbon product. The method includes contacting a coal-containing feedstock with a treatment gas that includes hydrogen. The coal feedstock can ... | 06/19/2007 |
| 7229483 | Generation of an ultra-superheated steam composition and gasification therewith A method for gasifying carbonaceous materials to fuel gases comprises the formation of an ultra-superheated steam (USS) composition substantially containing water vapor, carbon dioxide and highly reactive free radicals thereof, at a temperature of about 2400° F. (1... | 06/12/2007 |
| 7208530 | Production of synthetic transportation fuels from carbonaceous material using self-sustained hydro-gasification A process and apparatus for producing a synthesis gas for use as a gaseous fuel or as feed into a Fischer-Tropsch reactor to produce a liquid fuel in a substantially self-sustaining process. A slurry of particles of carbonaceous material in water, and hydrogen from ... | 04/24/2007 |
| 7135154 | Reactor module for use in a compact fuel processor A reactor module for use in a compact fuel processor having a module inlet for receiving a feed stream, a module outlet for producing an effluent stream, a reactor having a reactor inlet, a reactor outlet, and catalyst, an inlet spiral passage in fluid communication... | 11/14/2006 |
| 7128767 | Method to upgrade low rank coal stocks The ash content of raw coals, lignite, and other carbonaceous materials is reduced by leaching the high-ash material with an aqueous acidic waste product produced by a Fischer-Tropsch reaction. The acidic aqueous waste is mixed with coal and process conditions are d... | 10/31/2006 |
| 7097880 | Method for preparing catalysts A method for impregnating porous monolith supports with catalytically active materials is disclosed. The impregnation is carried out at a temperature which substantially reduces chemisorption rates such that reactions between the monolith substrate and catalytically... | 08/29/2006 |
| 7090707 | Combustion chamber design for a quench gasifier A new combustion chamber design for a quench gasifier. Electrical heating is used in the throat area of the combustion chamber to achieve temperatures up to 3500° F. to melt ash deposits and to increase carbon conversion (reduce soot production). Silicon carbide an... | 08/15/2006 |
| 7087097 | Facility for the gasification of carbon-containing feed materials A pressure-supercharged fluidized-bed gasification chamber has a pressure-tight lock for supplying the feed materials which are to be gasified. The fluidized-bed gasification chamber is connected to a filter chamber via a connecting channel, with the result that the... | 08/08/2006 |
| 7083956 | Method for hydrogen production from organic wastes using a two-phase bioreactor system A method and system for hydrogen production in which a feedstock of at least one biodegradable solid is introduced into a first stage anaerobic bioreactor and a liquid effluent formed. The liquid effluent is transferred into a second stage anaerobic bioreactor havin... | 08/01/2006 |
| 7077878 | Method for gasifying organic materials and mixtures of materials The aim of the invention is to provide a method for gasifying organic materials which is simple to carry out and requires minimal equipment and which produced an undiluted gas of high calorific value. The inventive method should eliminate the need to use fluid beds ... | 07/18/2006 |
| 7014834 | Process for preparing hydrogen through thermochemical decomposition of water There is provided a process of preparing hydrogen through thermochemical decomposition of water capable of supplying a mixture composed of the impalpable powders of CaO and coal directly to a main reactor. The process of preparing hydrogen through thermochemical dec... | 03/21/2006 |
| 7008967 | Production of synthesis gas and synthesis gas derived products A process (10) for producing synthesis gas includes, in a gasification stage (12), gasifying a carbonaceous feestock to provide a raw synthesis gas which includes at least H2, CO and CH4 and, in a partial oxidation stage (14 | 03/07/2006 |
| 6997965 | Method for the gasification of coal A method of the gasification of coal using oxygen and steam is provided wherein the coal is gasified at a temperature of from 1000 to 2500° C. and a pressure of from 1 to 100 kg/cm2 using oxygen generated by electrolyzing water and steam having a tempera... | 02/14/2006 |
| 6964696 | Method and apparatus for treating synthesis gas and recovering a clean liquid condensate An apparatus and method for recovering a clean liquid condensate from a synthesis gas at elevated temperatures and pressures. The apparatus includes at least one heat exchanger for reducing the temperature of the synthesis gas down to below 200° F. (93° C.) so as ... | 11/15/2005 |
| 6962681 | Methods and systems for reducing or eliminating the production of pollutants during combustion of carbon-containing fuels Systems and apparatus for increasing combustion efficiency during combustion of a carbon-containing fuel such as a fossil fuel. The systems and apparatus utilize catalytically reactive particles within a reaction chamber, typically silica or alumina, that interact w... | 11/08/2005 |
| 6960234 | Multi-faceted gasifier and related methods A gasifier is disclosed combining a fixed bed gasification section where coarse fuel is gasified and an entrained flow gasification section where fine fuel is gasified. The fixed bed section includes upper and lower sections. Coarse fuel is devolatilized in the uppe... | 11/01/2005 |
| 6955695 | Conversion of petroleum residua to methane This invention discloses improvements on previous inventions for catalytic conversion of coal and steam to methane. The disclosed improvements permit conversion of petroleum residua or heavy crude petroleum to methane and carbon dioxide such that nearly all of the h... | 10/18/2005 |
| 6911058 | Method for producing clean energy from coal A method for producing clean energy from coal by feeding the coal in a reactor which is sealed to the atmosphere and moving the coal in the reactor while injecting oxygen to combust a portion of the coal in a substoichiometric mode to devolatilize the coal and yield... | 06/28/2005 |
| 6911057 | Apparatus for converting coal into fuel cell quality hydrogen and sequestration-ready carbon dioxide An apparatus for burning coal to produce substantially pure hydrogen for use in fuel cells, together with “sequestration ready” carbon dioxide and a stream of oxygen depleted air for powering gas turbines. The apparatus includes two fluidized bed reactors and a ... | 06/28/2005 |
| 6790383 | Method of gasifying carbonaceous materials A method of gasifying organic materials (carbonaceous compounds) such as coal, shredded waste tire or waste oil into gaseous fuel, carbon monoxide and hydrogen, and an apparatus therefore are provided. The method comprises the steps of supplying initial fuel gas and... | 09/14/2004 |
| 6676716 | Method and apparatus for treating wastes by gasification A method and apparatus for treating wastes by gasification recovers useful resources including energy, valuables such as metals, and gases for use as synthesis gas for chemical industries or fuel. The wastes are gasified in a fluidized-bed reactor at a re... | 01/13/2004 |
| 6312482 | Steam generator for gasifying coal A combined, integral steam generator coal gasifier includes a vertically elongated, all welded, gas tight enclosure with a burner zone having a double pitch sloping furnace floor and a slag tap extending therethrough. Successive zones located above the bu... | 11/06/2001 |
| 6200430 | Electric arc gasifier method and equipment A method, and its associated equipment, for producing synthetic gas by means of an electric arc-activated, non-catalytic burner which utilizes up to three streams of product inputs. A primary spray is heated by an electric arc formed between two electrode... | 03/13/2001 |
| 6086722 | Minimizing evaporator scaling and recovery of salts during gasification A process for minimizing evaporator scaling during the recovery of liquids and solids from the aqueous effluent discharged during a partial oxidation gasification, wherein the aqueous effluent contains ammonium chloride (NH4 Cl). The aqueous ef... | 07/11/2000 |
| 6033447 | Start-up process for a gasification reactor Coal gasifiers using technology developed by Texaco Development Corporation, use coal slurry and oxygen as feed stocks. During start-ups, the raw gas produced in the gasifier must be flared until the downstream clean-up and recovery plants can be started.... | 03/07/2000 |
| 5993761 | Conversion of hydrocarbons assisted by gliding electric arcs in the presence of water vapor and/or carbon dioxide Method for conversion of hydrocarbons assisted by gliding electric arcs in the presence of water vapor and/or carbon dioxide. The objective of the process and the plasma assistance device to steam reforming, to the reforming with CO2 or to simultaneous reformi... | 11/30/1999 |
| 5955039 | Coal gasification and hydrogen production system and method A system and method generates electricity and co-produces a hydrogen flow from coal. The electricity is generated by a turbine with a topping combustor and a solid oxide fuel cell ("SOFC") reacting syngas. The syngas is produced in a coal gasifier with a ... | 09/21/1999 |
| 5855631 | Catalytic gasification process and system A catalytic gasification process and system for producing medium grade BTU gas including a gasification reactor having an inner air gasification zone, an outer steam gasification zone, a synthetic coal reaction zone, and an upper lime treating zone. The p... | 01/05/1999 |
| 5849050 | Process for generating burnable gas A process is disclosed for generating burnable gas by gasifying water- and ballast-containing organic materials, be it coal or garbage. The drying, low temperature carbonization and gasification steps are carried out separately. The heat taken form cooled... | 12/15/1998 |
| 5772708 | Coaxial coal water paste feed system for gasification reactor A system for feeding a coal-water paste material coaxially upwardly through a feed nozzle assembly into a pressurized fluidized bed reactor having a lower portion and a larger diameter upper portion. The feed nozzle assembly includes a nozzle unit for ato... | 06/30/1998 |
| 5656042 | Environmentally acceptable process for disposing of scrap plastic materials A pumpable slurry of shredded scrap solid carbonaceous plastic-containing material that contains associated inorganic matter in admixture with a comminuted aluminosilicate-containing material having noncombustible constituents is reacted by partial oxidat... | 08/12/1997 |
| 5645616 | Black liquor gasifier A system and method for producing product gas using residual waste liquor is described with a gasifier reactor having a fluidized bed located therein. The gasifier reactor is heated to a predetermined temperature range with either an external heater or a ... | 07/08/1997 |
| 5641327 | Catalytic gasification process and system for producing medium grade BTU gas A catalytic gasification process and system for producing medium grade BTU gas including a gasification reactor having an inner air gasification zone, an outer steam gasification zone, a synthetic coal reaction zone, and an upper lime treating zone. The p... | 06/24/1997 |
| 5630854 | Method for catalytic destruction of organic materials A method is disclosed for converting waste organic materials into an innocuous product gas. The method comprises maintaining, in a pressure vessel, in the absence of oxygen, at a temperature of 250° C. to 500° C. and a pressure of at least 50 atmosphere... | 05/20/1997 |
| 5624469 | Method and apparatus for recovering heat from solid material separated from gasification or combustion processes Heat is recovered from the hot solids discharged from the combustion chamber of a fluidized bed reactor. Hot solid particles as a result of combustion are removed either in the form of ash, or particles separated from a gas stream, and are passed into ind... | 04/29/1997 |
| 5543117 | System and method for heating and gasification of residual waste liquor A system for providing heated fluidized bed gasification of a residual waste liquor provides a bed of granular material and a source of liquor provided to the material bed. An injector is situated in the material bed and communicates with an air source, a... | 08/06/1996 |
