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| Number | Title | Issue Date |
| 5421840 | Production of synthesis gas via fluidized bed/fixed bed process combination A mixture of hydrocarbons, oxygen and steam is reacted over a fluidized bed, in a first reaction stage, at high temperature to produce, at hydrocarbon conversion levels ranging from about 85 percent to about 92 percent, a reaction product of hydrogen and ... | 06/06/1995 |
| 5421841 | Process for the elimination of silica and other impurities in fluidized bed syn gas production A process for the production of syn gas (hydrogen and carbon monoxide) by reaction at high temperature between low molecular weight hydrocarbons, steam and oxygen in an impurities-containing refractory lined reaction zone. The lined reaction zone is pretr... | 06/06/1995 |
| 5415673 | Energy efficient filtration of syngas cooling and scrubbing water A partial oxidation process for the production of a stream of cooled and cleaned synthesis gas, reducing gas, or fuel gas substantially free from entrained particulate matter and slag. The hot raw gas stream from the partial oxidation gas generator is que... | 05/16/1995 |
| 5403366 | Partial oxidation process for producing a stream of hot purified gas A partial oxidation process for the production of a stream of hot clean gas substantially free from particulate matter, alkali metal compounds, hydrogen halides, hydrogen cyanide, sulfur-containing gases, and with or without ammonia for use as synthesis g... | 04/04/1995 |
| 5401282 | Partial oxidation process for producing a stream of hot purified gas A partial oxidation process for the production of a stream of hot clean gas substantially free from particulate matter, ammonia, alkali metal compounds, halides and sulfur-containing gas for use as synthesis gas, reducing gas, or fuel gas. A hydrocarbonac... | 03/28/1995 |
| 5395405 | Method for producing hydrocarbon gas from waste A method for dissociating organic waste to produce a gasified hydrocarbon. The method of the invention includes directing an organic waste, into a reaction zone containing a molten metal bath in a reactor maintained under conditions sufficient to dissocia... | 03/07/1995 |
| 5394686 | Combined power cycle with liquefied natural gas (LNG) and synthesis or fuel gas Mechanical and electrical power are produced along with synthesis or fuel gas by the partial oxidation process with integrated combustion and steam turbines. By-product vaporized liquefied natural gas for feed to a pipeline for gas consumers is obtained b... | 03/07/1995 |
| 5392594 | Integrated production of fuel gas and oxygenated organic compounds from synthesis gas An oxygenated organic liquid product and a fuel gas are produced from a portion of synthesis gas comprising hydrogen, carbon monoxide, carbon dioxide, and sulfur-containing compounds in a integrated feed treatment and catalytic reaction system. To prevent... | 02/28/1995 |
| 5386055 | Depolymerization process A process for depolymerizing polymers by selective, partial oxidation at supercritical or near supercritical conditions for water and wherein supercritical water or water near supercritical conditions is used as a solvent and reforming agent, is used to p... | 01/31/1995 |
| 5383944 | Method for gasifying combustible liquid and powder by using gas detonation wave A method for gasifying a combustible liquid or powder using a gas detonation wave including a step of introducing detonable mixed gas including oxidizing gas into a detonation tube, a step of spraying, coating or laying combustible liquid or powder in the... | 01/24/1995 |
| 5369947 | Process for converting plastic waste into power The plastic waste is reacted in a plasma reactor 3 under reducing conditions in a plasma containing substoichiometric oxygen at temperatures above 1200° C. to form a plasma pyrolysis gas consisting of low molecular weight carbon fragments which is then c... | 12/06/1994 |
| 5370715 | Waste destructor and method of converting wastes to fluid fuel Organic wastes of diverse types including toxic materials are converted to synthesis gas or molecular hydrogen or methanol and an inorganic solid residue by heating the material to 1200 ° C. or higher in the presence of steam in a chemically reducing atm... | 12/06/1994 |
| 5356530 | Method for upgrading petroleum residuum and heavy crude oil A method for upgrading a petroleum material comprises charging the material into a vessel having a cylindrical wall, then heating the cylindrical wall. The petroleum material adjacent the wall is heated to a temperature sufficient to form a layer of carbo... | 10/18/1994 |
| 5356540 | Pumpable aqueous slurries of sewage sludge A pumpable aqueous slurry of sewage sludge as produced by the steps of (1) dewatering sewage sludge to produce an aqueous slurry having a solids content of about 10 to 25 wt. %; (2) pretreating said aqueous slurry of sewage sludge to improve its slurrying... | 10/18/1994 |
| 5345756 | Partial oxidation process with production of power A highly efficient partial oxidation process with the production of power comprising the steps of producing fuel gas by the partial oxidation of hydrocarbonaceous fuel, cooling said fuel gas at high pressure by quenching in water to produce quenched fuel ... | 09/13/1994 |
| 5347068 | Method of simultaneous disposal of solid and liquid wastes Method for simultaneous disposal of solid and liquid wastes including the steps of gasifying in a fixed bed pressure gasifier a gasification material containing coal and 1 to 70% of a solid waste material containing sulfur, hydrocarbons, PCBs, dioxins and... | 09/13/1994 |
| 5306481 | Indirectly heated thermochemical reactor apparatus and processes Resonant tubes of a pulse combustor are immersed in a bed of solid particles in a reaction zone to provide indirect heat from the pulsating combustion gases to the solid particles of the bed. The bed is maintained in an agitated state by a gas or vapor fl... | 04/26/1994 |
| 5295350 | Combined power cycle with liquefied natural gas (LNG) and synthesis or fuel gas Mechanical and electrical power are produced along with synthesis or fuel gas by the partial oxidation process with integrated combustion and steam turbines. By-product vaporized liquefied natural gas for feed to a pipeline for gas consumers is obtained b... | 03/22/1994 |
| 5290327 | Device and allothermic process for producing a burnable gas from refuse or from refuse together with coal A method for generating, from refuse or refuse in combination with coal, a fuel gas suited for public utility purposes wherein refuse and coal can be introduced into the process in any proportion one to the other. The method provides the steps of subjecti... | 03/01/1994 |
| 5284550 | Black liquier gasification process operating at low pressures using a circulating fluidized bed A black liquor gasification system intended for use as a replacement for a Tomlinson cycle, Chemical Recovery Unit, and which operates at a temperature below the ash melting temperature thereby removing the potential for smelt-water reactions and explosio... | 02/08/1994 |
| 5284878 | Liquid phase methanol process with co-rich recycle Methanol is produced by reacting a CO-rich synthesis gas in the presence of a powdered methanol synthesis catalyst suspended in an inert liquid in a liquid phase reactor system. Unreacted CO-rich synthesis gas is recycled to the reactor, thus increasing m... | 02/08/1994 |
| 5281243 | Temperature monitoring burner means and method A burner comprises a plurality of nozzles used to introduce a reactive mixture of hydrocarbon fuel and an oxidizing gas into a reaction chamber where synthesis gas is produced. A pyrometer connected to the nozzles senses the temperature of the reaction ch... | 01/25/1994 |
| 5273556 | Process for disposing of sewage sludge A process for disposing of sewage sludge by heating and shearing an aqueous mixture of sewage sludge in a tubular-shaped processing means containing a plurality of rotating agitators to produce a pumpable aqueous slurry of sewage sludge. The aqueous slurr... | 12/28/1993 |
| 5266085 | Process for disposing of sewage sludge A process for disposing of sewage sludge comprising the steps of, (1) dewatering the sewage sludge to produce an aqueous slurry of sewage sludge having a solids content of about 10 to 30 wt. %; (2) simultaneously heating and shearing said dewatered sewage... | 11/30/1993 |
| 5264009 | Processing of sewage sludge for use as a fuel A process for disposing of sanitary sewage sludge by producing a pumpable slurry of sewage sludge with or without solid carbonaceous fuel and burning said slurry as fuel in a partial oxidation gas generator, furnace, or boiler. The aqueous slurry of sewag... | 11/23/1993 |
| 5262577 | Method to convert refuse derived fuel into a combustible gas Method to convert refuse derived fuel (RDF) into a combustible gas, whereby the refuse derived fuel is gasified and the derived gas undergoes a process of catalytic cracking in which at least one alkaline additive or an equivalent product is used, the gas... | 11/16/1993 |
| 5251433 | Power generation process Hot raw fuel gas is produced by the partial oxidation of liquid or gaseous hydrocarbonaceous fuel or an aqueous slurry of solid carbonaceous fuel with substantially pure oxygen. The raw fuel gas is cleaned, cooled in a plurality of indirect heat exchanger... | 10/12/1993 |
| 5250083 | Process for production desulfurized of synthesis gas A process for the partial oxidation of a sulfur- and silicate-containing carbonaceous fuel to produce a synthesis gas with reduced sulfur content which comprises partially oxidizing said fuel at a temperature in the range of 1900°-2600° F. in the presen... | 10/05/1993 |
| 5245113 | Decontamination of PCB contaminated solids A method and apparatus for removal of PCBs or similar refractory organic substances from solid surfaces, such as soil or hardware, e.g., capacitors and transformers containing a charge or residue of PCB or similar fluids. Such toxic substances are volatil... | 09/14/1993 |
| 5243922 | Advanced staged combustion system for power generation from coal A process and apparatus for generating electricity from coal comprising a vertically stacked, three-stage combustor in which a sorbent is calcined in a calciner zone of the combustor and transferred to a carbonizer zone disposed below the calciner zone, c... | 09/14/1993 |
| 5241816 | Gas turbine steam addition The output of gas turbines is enhanced by gas moisturization using a water contact tower and a pumped water recirculation loop with low pressure steam addition thereto.... | 09/07/1993 |
| 5234469 | Process for disposing of sewage sludge A process for disposing of sewage sludge comprising the steps of, (1) dewatering the sewage sludge to produce an aqueous slurry of sewage sludge having a solids content of about 10 to 50 wt. %; (2) heating and mildly shearing said dewatered sewage sludge ... | 08/10/1993 |
| 5232467 | Process for producing dry, sulfur-free, CH4 -enriched synthesis or fuel gas Cryogenic liquefied natural gas (LNG) is used as a source of refrigeration and methane in the production of dry sulfur-free, methane-enriched synthesis gas or fuel gas. Raw syngas is indirectly and directly contacted with cryogenic liquefied natural gas (... | 08/03/1993 |
| 5217625 | Process for disposing of sewage sludge A process for disposing of sanitary sewage sludge by producing a pumpable slurry of sewage sludge with or without solid carbonaceous fuel and burning said slurry as fuel in a partial oxidation gas generator, furnace, or boiler. First, an aqueous slurry of... | 06/08/1993 |
| 5213587 | Refining of raw gas The invention relates to a process for the refining of a raw gas produced from a carbonaceous material by means of a gasification process, refining taking place in a secondary stage separated from the gasifier. In order to reduce the gas contents of tar i... | 05/25/1993 |
| 5211724 | Partial oxidation of sewage sludge An improved process for the low-cost disposal of noxious sewage sludge in a safe way without polluting the environment. In the process, sewage sludge having a solids content of about 0.5 to 20 wt.% is concentrated by pressing in a belt filter press, optio... | 05/18/1993 |
| 5211723 | Process for reacting pumpable high solids sewage sludge slurry This invention relates to a novel pumpable sewage sludge fuel and process for burning it. An aqueous slurry of sewage sludge is dewatered and dried to a solids content in the range of about 50 to 99 wt. % in a drying zone in the absence of free-oxygen con... | 05/18/1993 |
| 5211002 | Process and an equipment for the recovery of energy and chemicals in a sulphate process The invention relates to a method and an equipment for the recovery of energy and chemicals in a sulphate process, wherein black liquor is passed into a gasification reactor (3) in which it is gasified at a pressure above the atmospheric pressure in the p... | 05/18/1993 |
| 5183478 | Process for dewatering quenched slag Quenched slag discharged from a gasification process such as a coal gasification process can be continually dewatered and removed without disrupting operations by alternately discharging the quenched slag from means such as lockhoppers and directing the s... | 02/02/1993 |
| 5147415 | Process of treating the gases produced by the gasification of solid fine-grained fuels Fine-grained fuels are gasified in a fluidized state with a mixture of gasifying agents which comprise oxygen, water vapor and/or carbon dioxide. NH3 is substantially entirely removed from the product gas from the gasifier. All or part of the N... | 09/15/1992 |
