10results about "Horizontal gasifiers" patented technology

A method of producing a gas from a combustible material is provided. The method comprises the steps of loading the combustible material into a containment structure and sealing it therein. An oxidant is fed into the sealed containment structure with a controlled flow rate and a controlled rate of movement such that the combustible material is partly converted, thereby leaving behind thermally affected layers of combustible material after the injection point has passed through the material. At least some of the combustible material is converted into molten slag and or char that accumulates as the bottom-most thermally affected layer and subsequently cools and solidifies. The method is characterised in that it further includes the step of discharging solid slag and or char in the bottom-most thermally affected layer from under material that remains in the containment structure to remove solid slag and or char from the containment structure.

A horizontal gasifier features a closed body (3) with thermal insulation containing a helical feed screw (4) for the feedstock (2), a vertical feed inlet (1) for the feedstock (2) located at one end of the body (3), an inlet (7) for the oxidizing gas (6), and an ash collector (5) at the other end of the body (3), and an outlet (9) for volatile products (8). The gasifier is characterized by a gasification zone (21) in the final section of the body (3), with the shaft (4b) of the helical feeder (4) being completely hollow along its length and equipped with inlet openings (18) for introducing a supplementary portion of oxidizing gas (6) located in a segment extending beyond the body (3) on the side where the feed inlet (1) is located, and outlet openings (20) for this portion of oxidizing gas located in the gasification zone (21).

The invention provides a method for converting a nickel hyperaccumulator into high-calorific-value gas. The method comprises the following steps: pre-treating the nickel hyperaccumulator and pre-treating a rare earth hyperaccumulator. And gasifying the nickel hyperaccumulation plant powder to obtain combustible gas and nickel-rich residues. And combustible gas is recycled, nickel-rich residues are ground, and nickel-rich powder is obtained. The nickel-rich powder and the rare earth hyperaccumulation plant powder are mixed, the mixed powder is gasified, and synthesis gas and mixed residues are obtained. According to the method, the hyperaccumulator biomass rich in metal is subjected to in-situ catalytic gasification, so that the metal of the hyperaccumulator is fully utilized, and the hyperaccumulator biomass is converted into high-calorific-value gas. And carrying out secondary gasification on the nickel-rich residues and the rare earth hyperaccumulator powder after primary gasification to realize closed-loop utilization of the nickel hyperaccumulator biomass. By adopting carbon dioxide gasification, the net emission of CO2 is reduced, and synthesis gas which can be directly used for fuel cell power generation can be produced, so that energy conservation and environmental protection are realized.

A waste processing system comprising a drying chamber 7 which includes a cavity 21 which is supplied with waste and heated to dry the waste and generate steam, optionally flash steam, and a treatment

A system includes a biochar pyrolysis reactor having a reactor vessel. The biochar pyrolysis reactor further includes a first inlet coupled to the reactor vessel, wherein the first inlet is configured to receive a biomass feedstock. The biochar pyrolysis reactor further includes a second inlet coupled to the reactor vessel, wherein the second inlet is configured to receive a thermal fluid having heat from a gas turbine system, and the thermal fluid is configured to heat the biomass feedstock to cause a pyrolysis reaction of the biomass feedstock to generate a biochar and a syngas. The biochar pyrolysis reactor further includes a first outlet coupled to the reactor vessel, wherein the first outlet is configured to output the biochar. The biochar pyrolysis reactor further includes a second outlet coupled to the reactor vessel, wherein the second outlet is configured to output the syngas.

The invention relates to a reactor (1) for producing coal and synthesis gas from biomass, having a working chamber (2) which is laterally delimited by a working chamber wall (3), an inlet (4) through which the biomass can be introduced into the working chamber (2), and an outlet (5) through which coal and synthesis gas can be discharged from the working chamber (2), wherein biomass can be moved on a transport path along a transport direction (7) through the working chamber (2) from the inlet (4) to the outlet (5). According to the invention, an electrically conductive element is provided in the working chamber (2) and / or in the working chamber wall (3), wherein the electrically conductive element can be heated electrically, preferably inductively, in particular by an induction coil (8), in order to convert biomass located in the working chamber (2) into synthesis gas and coal. The invention also relates to a method for producing coal and synthesis gas from biomass.

A stirring device is provided. The stirring device includes a stirring device body (10), a rotating shaft (11) arranged at the center of the stirring device body, a plurality of connecting rods (12) fixedly connected to the rotating shaft, and a regulating assembly (141,143,144,145,146,147). A tail end of each connecting rod is hinged with a scraper (13). The rotating shaft is rotatable around an axis of the rotating shaft under the driving of a driving component. The connecting rods are uniformly distributed along the length of the rotating shaft. The rotating direction of the scraper is located in a plane vertical to the axis of the rotating shaft. The regulating assembly is used for regulating a rotation angle of the scraper. Wherein, the scraper can be in flexible contact with an inner wall of the stirring device body under the regulation of the regulating assembly.

Waste feed material, such as Automotive Shredder Residue (ASR) feed material, that includes hydrocarbon materials and inorganic materials is processed using photolysis. A reactor includes a chamber that receives waste feed material including a majority of hydrocarbon material after the substantial removal of inorganic material including metals and minerals. A photonic illumination or photolysis module irradiates the feed material within the chamber of the reactor to decompose the hydrocarbon or hydrocarbon materials within the waste feed material into gases and / or carbonaceous solids. A mechanical movement unit moves the waste feed material within the chamber of the reactor to facilitate exposure of different portions of the feed material to irradiation within the chamber during system operation. A pre-treatment module substantially removes the contained metals and minerals in the waste material from the hydrocarbon material fed to the reactor.

The invention discloses horizontal biomass gas-carbon co-production equipment, which comprises a carbon-gas co-production gasification furnace, a feeding screw conveyor, a hopper, a reciprocating grate main body, a gas supply assembly, a discharging assembly, a carbon collection pool, a carbon screw conveyor and a carbon storage bin, and is characterized in that the interior of the carbon-gas co-production gasification furnace is divided into a drying chamber and a combustion chamber through a guide plate; biomass raw materials are fed into the furnace through the hopper and the feeding screw conveyor and conveyed to the combustion chamber through the reciprocating grate body to be combusted, high-temperature smoke moves in the direction opposite to the material conveying direction to achieve drying and gasification of the materials, combustible gas is discharged through a channel between the guide plate and the reciprocating grate body, and biochar falls into the carbon collecting pool through the discharging assembly. According to the equipment, gas-carbon co-production can be achieved, the utilization rate of biomass raw materials is increased, sufficient reaction is guaranteed through precise gas distribution of the gas supply assembly, safe and stable discharging can be achieved through the discharging assembly, the overall structural layout is reasonable, operation is stable, and the equipment is suitable for high-quality clean utilization of various biomass raw materials.

According to the present invention, there is provided a process for producing a synthesis gas, by first producing carbon monoxide (CO) from a stream containing carbon dioxide (CO2), obtained from the calcination of a carbonate-containing raw material, and subsequently contacting an obtained CO-containing product gas further with a hydrogen-containing gas to produce synthesis gas.