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| Number | Title | Issue Date |
| 6875317 | Waste treating method Wastes mainly containing any one or two or more of raw garbage, waste lumber, paper diapers, waste plastics, and organic sludge discharged from the food industry, common houses, etc. are exposed to high-temperature steam of 510 to 900° C. in an oxygen-free state, p... | 04/05/2005 |
| 6316378 | Process for the production of shaped activated carbon The invention relates to a process for the production of shaped activated carbon by steam activation in an continuously operating rotary tunnel kiln, by continuously drying spherically preformed raw materials in a rotary tunnel dryer with 6-fold product t... | 11/13/2001 |
| 5525196 | Process for producing formed activated coke An improved process for producing a formed activated coke for simultaneous desulfurization and denitrification, which includes passing a ground coal through a tubular or cylindrical carbonization retort by using a hot gas stream, to subject the coal to pr... | 06/11/1996 |
| 5360537 | Apparatus and method for retorting oil shale and like materials A continuously operable combustion-type retort apparatus includes an insulated retort. A preheater is preferably associated with the retort for preheating incoming material, and means are preferably provided for injecting acetic acid and steam into the in... | 11/01/1994 |
| 5172709 | Apparatus and process for removing contaminants from soil An apparatus and process are described for removing contaminants from soil or other substrate materials. A hot pressurized liquid is continuously supplied to a volume of soil or other material contained in a processing vessel. The hot pressurized liquid m... | 12/22/1992 |
| 5171406 | Fluidized bed selective pyrolysis of coal The present invention discloses a process for the pyrolysis of coal which comprises the effective utilization of two zonal inclined fluidized beds, where said zones can be selectively controlled as to temperature and heating rate. The first zonal inclined... | 12/15/1992 |
| 4994174 | Process and system for low-temperature carbonization of oil shale, oil sands or similar oil-bearing solids A process and system for low-temperature carbonization of oil shale, oil sands and similar oil-bearing solids includes low-temperature carbonization of oil-bearing solids in a high-pressure fluidized bed reactor in the presence of a substance selected fro... | 02/19/1991 |
| 4891459 | Oil production by entrained pyrolysis of biomass and processing of oil and char Entrained pyrolysis of lignocellulosic material proceeds from a controlled pyrolysis-initiating temperature to completion of an oxygen free environment at atmospheric pressure and controlled residence time to provide a high yield recovery of pyrolysis oil... | 01/02/1990 |
| 4778585 | Two-stage pyrolysis of coal for producing liquid hydrocarbon fuels Increased yields of liquid hydrocarbon are obtained from a carbonaceous material (e.g., coal) by a two-stage process comprising pretreatment of the carbonaceous material with an appropriate gas in a first stage, followed by pyrolysis of the pretreated car... | 10/18/1988 |
| 4752359 | Method of producing active form coke Active form coke is made from coal by passing the coal granulate downwardly through a preheating and pyrolysis zone, a heating zone, an aftertreatment zone and a cooling zone by moving respective grate bars of grates in each zone so that a bed of granules... | 06/21/1988 |
| 4722768 | Device for carrying out gas/solid reactions Untreated coal is activated with steam at temperatures of 600° to 950° C. in a vibrating fluid bed, which is directly heated. The untreated coal is pre-dried by counter-current passage of the waste gases from the reaction either during feeding of the un... | 02/02/1988 |
| 4597776 | Hydropyrolysis process An improved process for producing a methane-enriched gas wherein a hydrogen-deficient carbonaceous material is treated with a hydrogen-containing pyrolysis gas at an elevated temperature and pressure to produce a product gas mixture including methane, car... | 07/01/1986 |
| 4597772 | Fixed kiln with rotor steam gasifier A tilted, fixed kiln with rotory steam gasifier having a fixed elongated, pressurizable kiln body member with an input end and an output end and with the center axis supported at an angle to the horizontal so as to bring into effect gravitational forces a... | 07/01/1986 |
| 4533463 | Continuous coking of residual oil and production of gaseous fuel and smokeless solid fuels from coal Coal and residual oil are simultaneously processed in a reactor with a combustion zone at the bottom and a fluidized bed on top of it. The residual oil is injected into heat exchange relationship with the top of the fluidized bed where it is cracked with ... | 08/06/1985 |
| 4511459 | Simultaneous coking of residual oil and partial gasification and desulfurization of coal Coking of residual oil and devolatization/partial gasification and desulfurization of solid particulate fuel are carried out in a single reactor. The particulate fuel is burned in a combustion zone in the bottom of the reactor. A bed of particulate fuel i... | 04/16/1985 |
| 4505809 | Process and apparatus for extracting hydrocarbons from oil shale A process for extracting hydrocarbons from oil shale comprising the steps of subjecting oil shale under superatmospheric pressure in the presence of hydrogen and steam, to low temperature hydrogenating distillation; separating the resulting fluid distilla... | 03/19/1985 |
| 4472245 | Process for continuous thermal treatment of carbonizable material Materials which become carbonized at high temperatures, such as wood, cellulose, household refuse, used tires, plastics, tar sand, oil shale, and the like, are subjected to thermal treatment, i.e., pyrolysis or gasification, in an electric shaft furnace h... | 09/18/1984 |
| 4469488 | Method for gasifying coal An improved method for generating gas from coal including caking and high sulfur coals, in a completely enclosed system wherein no oxygen or air is used to burn a portion of the coal and/or char to produce heat for the reaction. The heat for the reaction ... | 09/04/1984 |
| 4421603 | Process for recovering carbonaceous liquids from solid carbonaceous particles Pyrolysis process and system for recovering product gases and liquids from solid carbonaceous particles. Dual stage fluidized bed retort is disclosed having frusto-conical stages serially connected to promote uniform pyrolysis. Product gases and oil are r... | 12/20/1983 |
| 4406744 | Process for the production of hydrogenated tar and distillates and low sulfur coke from coal The production of hydrogenated tar and distillates from coal which is passed through successive condensing, hydrogenation, desulfurization and cooling zones of a dense bed while a flue gas is discharged into the lower portion of the desulfurization zone i... | 09/27/1983 |
| 4396487 | Process for retorting oil shale and the like The production of oil by retorting shale and other hydrocarbonaceous and lignocellulosic solid materials is facilitated by retorting in the presence of steam and acetic acid.... | 08/02/1983 |
| 4366026 | Process for the production of coke or semicoke In the continuous production of coke or semicoke from coal grains and/or fines an inclined air-tight rotating tubular oven is fed with coal grains and/or fines from a hopper. As the coal grains and/or fines progress down the rotating oven they are heated ... | 12/28/1982 |
| 4347064 | Process of gasifying fine-grained solid fuels A process of gasifying fine-grained solid fuels for the production of a product gas that contains hydrogen, carbon oxides and methane comprises a treatment with steam, oxygen and/or carbon dioxide in two interconnected gasifying stages under a pressure in... | 08/31/1982 |
| 4344821 | Apparatus for continuously carbonizing and activating carbonaceous materials A process for carbonizing and then activating carbonaceous materials in a continuous process as performed by an apparatus consisting of an elongated, slightly inclined rotary retort into the higher end of which the material is deposited and from the lower... | 08/17/1982 |
| 4332641 | Process for producing calcined coke and rich synthesis gas Carbonaceous material such as petroleum coke is calcined in the upper part of an air-injected vertical shaft kiln, and steam injected into the lower part of the kiln reacts with hot coke below the combustion zone to produce hydrogen and carbon monoxide. A... | 06/01/1982 |
| 4325787 | Apparatus for retorting comminuted oil shale A continuously operable retort-type processing system for the recovery of petroleum-like products from comminuted oil-bearing shale and other oil-yielding particulate solid materials. The retort portion of the system includes an insulated retort outer she... | 04/20/1982 |
| 4288293 | Form coke production with recovery of medium BTU gas In the fluidized carbonization and calcination of coal to form a reactive coal calcinate for admixture with bituminous binder for briquetting, curing, and coking to produce form coke, the improvement of recovering medium BTU gases in the overheads by usin... | 09/08/1981 |
| 4273619 | Apparatus for continuously carbonizing and activating carbonaceous materials An apparatus for carbonizing and then activating carbonaceous materials in a continuous process consisting of an elongated, slightly inclined rotary retort into the higher end of which the material is deposited and from the lower end of which the product ... | 06/16/1981 |
| 4269696 | Fluid coking and gasification process with the addition of cracking catalysts An integrated fluid coking and gasification process is provided in which a solid cracking catalyst is added to the coker chargestock and in which a partially gasified coke matrix comprising the cracking catalyst is recycled to the coker vapor phase produc... | 05/26/1981 |
| 4242225 | Method and apparatus for producing active coke At least a portion of coke produced in a hearth-type furnace is fed into an activation reactor, and at least a portion of the waste gas from the hearth-type furnace is fed to the activation reactor to act as a heating gas and/or an activation gas for the ... | 12/30/1980 |
| 4230602 | Process for producing highly activated carbonaceous products A single-pass, continuous process converts organic feedstocks into activated carbonaceous products having high surface area values. The introduction of air and steam into the bed of material at selected locations, and at controlled rates, enables the econ... | 10/28/1980 |
| 4164397 | Fuel gas production A method of manufacturing fuel gas from lignocellulose material such as wood. Wood is converted to fuel gas in a descending bed reactor which encloses a descending bed of wood material. Gas produced in the reactor travels upwardly through and thence out f... | 08/14/1979 |
| 4162959 | Production of hydrogenated hydrocarbons In a continuous process for recovery of values from a solid carbonaceous material, the carbonaceous material is pyrolyzed in the presence of a particulate source of heat to yield a particulate carbon containing residue of pyrolysis and volatilized hydroca... | 07/31/1979 |
| 4153420 | Process for wet carbonizing of peat A process for the wet carbonizing of peat, wherein the peat is diluted and screened to become a raw peat suspension in a suspension preparing apparatus, the peat suspension thus obtained is preheated in series-connected heat exchangers and in a preheating... | 05/08/1979 |
| 4144033 | Process for manufacturing metallurgical cabonaceous materials from coals A process for manufacturing metallurgical carbonaceous materials from coals, particularly coals of a low rank of coalification, in which coal fines and a hydrocarbon base solvent having a boiling point of 150° to 500° C. are mixed together into a slurry... | 03/13/1979 |
| 4140583 | Processing of lignite for petrochemicals Process and apparatus for producing ethylene from lignite and subbituminous coal by chemical condition and temperature control using cellulosic material within the treated mass or added thereto whereby ethylene gas is evolved from such carbonacous feed an... | 02/20/1979 |
| 4122036 | Method of pyrolyzing sewage sludge to produce activated carbon A method of pyrolyzing sewage sludge to transform the same into activated carbon, with the combustible pyrogas and volatile liquids included therewith that arise from the pyrolysis operation being burned to sustain the transformation operation. A first po... | 10/24/1978 |
| 4108731 | Coke production Coke is produced with high yield and low sulfur by heating and drying ground coking coal at 200° to 300° C. for 15 to 120 minutes in air, and then heating in two semicoking stages in nitrogen in fluidized bed reactors. The first semicoking stage is 400Â... | 08/22/1978 |
| 4097360 | Quenching pyrolysis reactor effluent streams A continuous process recovers values from a solid carbonaceous material by directly contacting a stream containing volatilized hydrocarbons resulting from the pyrolysis of the solid carbonaceous material with incoming feed carbonaceous material to quench ... | 06/27/1978 |
| 4094767 | Fluidized bed retorting of tar sands Raw tar sand is treated in a fluidized bed reactor means wherein the raw tar sands are fed into an area below the top of the bed. The bitumen is converted in the process in a reducing atmosphere including steam to produce hot coked sand and hot off-gases.... | 06/13/1978 |
