54results about "Screw type gasifiers" patented technology

The process of the invention converts carbonaceous feedstock such as coal, hydrocarbon oil, natural gas, petroleum coke, oil shale, carbonaceous-containing waste oil, carbonaceous-containing medical waste, carbonaceous-containing military waste, carbonaceous-containing industrial waste, carbonaceous-containing medical waste, carbonaceous-containing sewage sludge and municipal solid waste, carbonaceous-containing agricultural waste, carbonaceous-containing biomass, biological and biochemical waste, and mixtures thereof into electrical energy without the production of unwanted greenhouse emissions. The process uses a steam / CO2 reformer operating in the exit range of at least 700° to about 1600° C. (1300-2900°0 F.) to convert the carbonaceous feedstock and a greenhouse gas stream into a synthesis gas comprising mostly carbon monoxide and hydrogen that contains poisons and the compounds that poison fuel cells. The syngas is sent to an interface zone to remove these poisons and other fouling compounds that are electrochemically oxidized in an electricity-producing fuel cell into an exit gas comprising carbon dioxide and water.

Embodiments presented herein describe an apparatus and method to convert carbonaceous materials, particularly biomass and those biomass resources which are remotely located, into a high performance solid fuel. This method, and the apparatus described as the means to accomplish this method, provides a continuous process which can be completely powered by the energy contained in the biomass. The heat, mechanical power and electrical power are provided from the energy in the biomass, through the methods described. In this way, the apparatus is free to operate in remote locations, where no power or auxiliary fuel sources are available.

A pyrolyzer and method is provided for devolatizing coal and other volatile materials. The pyrolyzer has a pyrolyzer furnace housing having at least two screws laterally positioned adjacent and overlapping rotatably mounted within the furnace for moving volatile material through the pyrolyzer furnace housing. The screws have hollow drive shafts with a diverter inside for converging heated fluid to heat the volatile material moving through the pyrolyzer furnace housing. A combustion chamber combusts fuel to create heated exhaust gas for directing through the hollow drive shafts to heat the volatile material. The pyrolyzer furnace housing may have a double wall with a cavity between, capable of receiving heated fluid for further heating of volatile material moving through the pyrolyzer furnace housing.

A char making apparatus comprises a longitudinal pyrolyzer furnace housing wherein coal-bearing material may be heated to a temperature to fluidize volatile materials therein and plasticize coal in the coal-bearing material. At least two rotatable drive screws are laterally positioned and interleaved within the longitudinal furnace housing and capable of conveying coal-bearing materials through the pyrolyzer furnace housing, each drive screw having a hollow drive shaft and a diverter positioned within the drive shaft to provide heating to the coal-bearing material. A heating jacket about the longitudinal furnace housing provides additional heating to the coal-bearing material. Multiple combustion chambers adjacent the heating jacket and hollow drive shaft burn fluidized volatile materials and exhaust combustion fluids through the jacket and shaft.

A char making apparatus comprises a longitudinal pyrolyzer furnace housing wherein coal-bearing material may be heated to a temperature to fluidize volatile materials therein and plasticize coal in the coal-bearing material. At least two rotatable drive screws are laterally positioned and interleaved within the longitudinal furnace housing and capable of conveying coal-bearing materials through the pyrolyzer furnace housing, each drive screw having a hollow drive shaft and a diverter positioned within the drive shaft to provide heating to the coal-bearing material. A heating jacket about the longitudinal furnace housing provides additional heating to the coal-bearing material. Multiple combustion chambers adjacent the heating jacket and hollow drive shaft burn fluidized volatile materials and exhaust combustion fluids through the jacket and shaft.

A pyrolyzer and method is provided for devolatizing coal and other volatile materials. The pyrolyzer has a pyrolyzer furnace housing having at least two screws laterally positioned adjacent and overlapping rotatably mounted within the furnace for moving volatile material through the pyrolyzer furnace housing. The screws have hollow drive shafts with a diverter inside for converging heated fluid to heat the volatile material moving through the pyrolyzer furnace housing. A combustion chamber combusts fuel to create heated exhaust gas for directing through the hollow drive shafts to heat the volatile material. The pyrolyzer furnace housing may have a double wall with a cavity between, capable of receiving heated fluid for further heating of volatile material moving through the pyrolyzer furnace housing.

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, preferably while being stirred, to be carbonized. Thereby, the amount of wastes is reduced safely and efficiently with no fear of generating harmful substances such as dioxin, and moreover the carbonized wastes can be reused effectively for applications to fuel or the like.

The process of the invention converts carbonaceous feedstock such as coal, hydrocarbon oil, natural gas, petroleum coke, oil shale, carbonaceous-containing waste oil, carbonaceous-containing medical waste, carbonaceous-containing military waste, carbonaceous-containing industrial waste, carbonaceous-containing medical waste, carbonaceous-containing sewage sludge and municipal solid waste, carbonaceous-containing agricultural waste, carbonaceous-containing biomass, biological and biochemical waste, and mixtures thereof into electrical energy without the production of unwanted greenhouse emissions. The process uses a steam / CO2 reformer operating in the exit range of at least 700° to about 1600° C. (1300-2900° F.) to convert the carbonaceous feedstock and a greenhouse gas stream into a synthesis gas comprising mostly carbon monoxide and hydrogen that contains poisons and the compounds that poison fuel cells. The syngas is sent to an interface zone to remove these poisons and other fouling compounds that are electrochemically oxidized in an electricity-producing fuel cell into an exit gas comprising carbon dioxide and water.

Chemical reactors with annularly positioned delivery and removal devices, and associated systems and methods. A reactor in accordance with a particular embodiment includes a reactor vessel having a light-transmissible surface proximate to a reaction zone, and a movable reactant delivery system positioned within the reactor vessel. The reactor can further include a product removal system positioned within the reactor vessel and positioned annularly inwardly or outwardly from the delivery system. A solar concentrator is positioned to direct solar radiation through the light-transmissible surface to the reaction zone.

The present document describes a system and a process for the thermochemical treatment a matter containing organic compounds such as biomass in the form of animals droppings. The system and process may be used for the production of useful energetic products such as biochar, bio-oil and gases from non-condensed vapors.

The invention discloses a multi-section spiral moving bed pyrolysis gasification device which comprises a dry-section reactor, a pyrolysis-section reactor and a gasification-section reactor. The dry-section reactor is used for drying materials, the pyrolysis-section reactor is used for pyrolyzing the materials, the gasification-section reactor is used for gasifying the materials, the dry-section reactor, the pyrolysis-section reactor and the gasification-section reactor are provided with feeding ports and discharging ports, the discharging port of the dry-section reactor is connected with thefeeding port of the pyrolysis-section reactor, and the discharging port of the pyrolysis-section reactor is connected with the feeding port of the gasification-section reactor. The device has the advantages that the standing time of the materials is controlled by adjusting the rotating speed of a motor, and matching amount of gasifying agents and the materials is manually and accurately controlledby combining the sectioned air supply speed of an air-distribution plate, so that physical and chemical properties of target products can be controlled.

The present document describes a system and a process for the thermochemical treatment a matter containing organic compounds such as biomass, for the production of useful energetic products such as biochar, bio-oil and gases from non-condensed vapors. The system comprises a reactor comprising a feedstock reservoir having entry and exit, a thermochemical reaction chamber having an entrance disposed under and coupled to the reservoir exit, an exit, and a first heating means for thermal treatment of the matter to produce a solid and a vapor. The system also comprises a feeder having at least one substantially vertical auger operatively coupled to the feedstock reservoir and the thermochemical reaction chamber exit to drive the matter downwardly from the feedstock reservoir exit through the thermochemical reaction chamber. A chamber for separation of the solid from the vapor which maintains the vapor in a gaseous state has an entrance coupled to the thermochemical reaction chamber exit, and an exit for exit of said vapor. The system also comprises a controller, operatively coupled to the first heating means for controlling temperature of the thermochemical reaction chamber, and a pump operatively coupled to the separation chamber exit for maintaining a light vacuum within the reactor and for helping exit of the vapor.

Techniques, systems, apparatus and material are disclosed for generating renewable energy from biomass waste while sequestering carbon. In one aspect, a method performed by a reactor to dissociate raw biomass waste into a renewable source energy or a carbon byproduct or both includes receiving the raw biomass waste that includes carbon, hydrogen and oxygen to be dissociated under an anaerobic reaction. Waste heat is recovered from an external heat source to heat the received raw biomass waste. The heated raw biomass waste is dissociated to produce the renewable fuel, carbon byproduct or both. The dissociating includes compacting the heated raw biomass waste, generating heat from an internal heat source, and applying the generated heat to the compacted biomass waste under pressure.

A method of removing organic components from a mixture containing organic and inorganic components which method involves providing an induction heated screw conveyor having an auger and passing the mixture through the induction heated screw conveyor while inductively heating the auger so as to heat the mixture in the induction heated screw conveyor primarily from the center of the induction heated screw conveyor. The mixture is heated to a temperature that is sufficient to cause the organic components in the mixture to separate from the mixture as a vapor. The oxygen concentration in the induction heated screw conveyor is controlled so as to gasify the organic components. The gasified organic components are removed and the remaining inorganic components are collected.

Methods apparatus for producing fuel and power from the reformation of organic waste. Various embodiments include the use of steam to produce syngas in a Fischer-Tropsch reaction, followed by conversion of that syngas product to hydrogen. Some embodiments include the use of a heated auger both to heat the organic waste and further to cool the syngas.

A means for improving prior art combined cycle combustor and / or gasifiers and / or plural thermodynamic cycle gasification systems by introducing and utilizing an auger for the continuous feeding, agitation, tumbling, advancement and discharge of heterogenous carbonaceous fuel. In addition to the aforementioned improvement, I have included provisions for Fontana's water gas shift reaction utilizing refectory embedded down-tubes that convey steam and oxygen into and through the chambers fluidized bed.

A device for producing fuel gas from materials of organic and / or inorganic origin, comprising filling chamber connected to at least one supply auger conveyor for supplying material from the filling chamber into a reactor comprising at least two heated gasification augers. The invention consists in the fact that each horizontal row of gasification augers is formed by a gasification body, the casing of which has a closed oval cross-section formed by an upper base, a lower base, and convex side walls each with circular arc profiles, wherein each gasifying body contains at least two gasification augers arranged side by side and mutually partially separated by longitudinal partitions that form half-grooves for gasifying augers. The device is provided with at least one electrical heater. The filling chamber is hermetically sealed.

Provided is a biomass rotary propulsion pyrolysis device. The device comprises a pyrolysis device body, the pyrolysis device body is connected to a rotary device, and comprises a feed pipe (1), a discharge pipe (8) and several pyrolysis pipes (4), the outlet of the feed pipe (1) is fixedly connected to the inlets of the several pyrolysis pipes (4) separately, the outlets of the several pyrolysis pipes (4) are fixedly connected to the inlet of the discharge pipe (8) separately, the feed pipe (1) is internally provided with a feed helical blade (2), the discharge pipe (8) is internally provided with a discharge helical blade (9), the pyrolysis pipes (4) are internally provided with pyrolysis helical blades (5), and several means one or more. Through the biomass rotary propulsion pyrolysis device, the problem of pool sealing caused by a complicated mechanism in which the helical blades need to rotate and transmit solely is solved, and the device has good economic and environmental protection effects.

A device for processing scrap rubber has a reactor with a screw conveyor disposed inside a heating chamber, a thermal decomposition unit, burners, a condenser, a cyclone filter, and devices for discharging solid residue and removing a gas-vapor mixture. The reactor has two sections connected in parallel. The thermal decomposition unit has screw conveyors in each section, the conveyors have axial heating pipes with a coil. Along the length of the conveyors plates are arranged at the corners of an equilateral triangle in contact with and perpendicular to the side surface of the heating tube. A cylinder furnace with an evaporator and a burner is connected to the ends of the pipes. An outlet of the condenser is connected to a liquid fraction separator, inlets of the coils are connected to an outlet of the evaporator, and an inlet of the evaporator is connected to an outlet from the separator.

The invention provides a sludge slurry gasification method and device. The device comprises an atomization range and a gasification region. The method comprises the following steps: carrying out crushing treatment on dewatered sludge by using ultrasonic, mixing with biomass and additives to prepare sludge slurry, atomizing the sludge slurry into small-particle liquid drops by using the device, and gasifying to obtain combustible gas. The atomized small-particle liquid drops move helically in the device along with the gas flow and are quickly gasified; and moisture in the liquid drops can generate a crushing action on solid particles in the sludge slurry in the heating-induced evaporation precipitation process, thereby further reducing the particle size, and enhancing the thermal mass transfer rate and gasification efficiency. The method solves the problems of hardening, wall adhesion and the like caused by wet sludge direct gasification, widens the applicability of the sludge gasification technique, and implements cyclic harmless and reduction treatment on the sludge.

A system and method capable of efficient production of synthesis gas from biomass materials in a manner which can be scaled to relatively large throughput capacities. the system is operable to compact a loose biomass material and simultaneously introduce the compacted biomass material into entrances of internal passages of multiple parallel reactors, heat the compacted biomass material within the reactors to a temperature at which organic molecules within the compacted biomass material break down to form ash and gases comprising carbon monoxide and hydrogen gases, inhibit combustion of the compacted biomass material when heated within the internal passages of the reactors, conduct the carbon monoxide and hydrogen gases through the reactors in a direction opposite the movement of the compacted biomass through the reactors, and remove the ash from the reactor.

The invention relates to a method and a system for sludge pyrolysis plasma gasifying generation. The method for sludge pyrolysis plasma gasifying generation comprises the following steps: feeding sludge into a heat accumulating type rotary bed and performing pyrolysis treatment, thereby acquiring a pyrolytic gas liquid mixture and pyrolytic gas carbon; introducing the pyrolytic gas liquid mixture into a plasma gasification reaction chamber, thereby acquiring a synthesis gas; introducing the synthesis gas into a heat exchange device for performing heat exchange treatment, thereby acquiring steam and residual synthesis gas; and introducing the steam into a generation device. The system for sludge pyrolysis plasma gasifying generation comprises the heat accumulating type rotary bed, the plasma gasification reaction chamber, the heat exchange device, the generation device and a quenching device. According to the technical scheme provided by the invention, the clean and efficient method and system for sludge pyrolysis plasma gasifying are provided; the steam acquired from the synthesis gas through heat exchange treatment is utilized to generate electricity, so that the harmless, treatment, reduction and recycling of the sludge are realized; the running cost is low; the tar yield is ultralow; the pipeline is prevented from being blocked; and the industrialization and large-scale production can be easily realized.

A means for improving prior art combined cycle combustor and / or gasifiers and / or plural thermodynamic cycle gasification systems by introducing and utilizing an auger for the continuous feeding, agitation, tumbling, advancement and discharge of heterogeneous carbonaceous fuel. In addition to the aforementioned improvement, I have included provisions for Fontana's water gas shift reaction utilizing refractory embedded down-tubes that convey steam and oxygen into and through the chambers fluidized bed.

The present invention relates to a pyrolysis apparatus comprising a pyrolysis chamber have a first end and a second end, a feed inlet connected adjacent the first end of the pyrolysis chamber, a biochar outlet connected adjacent the second end of the pyrolysis chamber, and a gas outlet in fluid communication with the pyrolysis chamber. The pyrolysis chamber and feed inlet further comprise centreless screw conveyors. The present invention alleviates the problems associated with dust, oils and tars being present in the generated syngas. The present invention can also be used in a method of continuously processing biomass.

The invention discloses a gasifier and relates to the technical field of coal gasification equipment, which is invented for solving the problems that the content of carbocoal particles in synthesis gas exhausted from an existing gasifier is greater, and the burden of subsequent gas-solid separation is heavier. The gasifier comprises a casing, wherein a raw material inlet is formed in the top wall of the casing; an exhaust opening is formed in the side wall of the casing; a coke discharging opening is formed in the bottom wall of the casing; a built-in guide cylinder, a rotational flow inner cylinder and a rotational flow member are arranged in the casing; one end of the built-in guide cylinder is communicated with the raw material inlet, and the other end of the built-in guide cylinder downwards extends; the rotational flow inner cylinder is arranged at the outer part of the lower end of the built-in guide cylinder in a sleeving manner; in addition, the upper end of the rotational flow inner cylinder upwards extends to a position close to the exhaust opening; a first annular space is formed between one circumference of the inner wall of the rotational flow inner cylinder and the built-in guide cylinder; a second annular space is formed between one circumference of the outer wall of the rotational flow inner cylinder and the inner wall of the casing; the rotational flow member is arranged between the lower end of the built-in guide cylinder and the rotational flow inner cylinder. The gasifier disclosed by the invention is used for coal hydrogasification reaction.

The invention relates to a device for producing a dihydrogen gas including an enclosure, means for conveying the product into the enclosure, which comprise a screw mounted so as to rotate in the enclosure about a geometric axis of rotation, means for heating the screw by the Joule effect, and a unit for removing impurities present in the gas. The invention also relates to a method for manufacturing dihydrogen using such a device as well as to a use of the device for the treatment of a product such as CSR material or polymer material.