40results about "Coke ovens heating" patented technology

The present invention provides system, method and apparatus for creating an electric glow discharge that includes a first and second electrically conductive screens having substantially equidistant a gap between them, one or more insulators attached to the electrically conductive screens, and a non-conductive granular material disposed within the gap. The electric glow discharge is created whenever: (a) the first electrically conductive screen is connected to an electrical power source such that it is a cathode, the second electrically conductive screen is connected to the electrical power supply such that it is an anode, and the electrically conductive fluid is introduced into the gap, or (b) both electrically conductive screens are connected to the electrical power supply such they are the cathode, and the electrically conductive fluid is introduced between both electrically conductive screens and an external anode connected to the electrical power supply.

Char-handling processes for controlling overall heat balance, ash accumulation, and afterburn in a reheater are provided. Carbonaceous biomass feedstock is pyrolyzed using a heat transfer medium forming pyrolysis products and a spent heat transfer medium. The spent heat transfer medium is separated into segregated char and char-depleted spent heat transfer medium. The char-depleted spent heat transfer medium is introduced into a dense bed of heat transfer medium fluidized by a stream of oxygen-containing regeneration gas. All or a portion of the segregated char is combusted in the dense bed using the stream of oxygen-containing regeneration gas. A portion of the segregated char may be exported out of the pyrolysis system to control the overall heat balance and ash accumulation.

The invention provides a pyrolysis reactor, which includes: regenerative type radiant tubes, a stirring device, a catalyst adding component, an air pumping umbrella and a distributor. The regenerative type radiant tubes are arranged in multiple layers along the height direction of the pyrolysis reactor, and a plurality of regenerative type radiant tubes parallel to each other are disposed in each layer in the horizontal direction; the stirring device consists of a stirring shaft and a plurality of stirring rods connected to the stirring shaft, and the stirring shaft rotatably extends from a slag discharge port into the pyrolysis reactor; the catalyst adding component includes a catalyst main tube; a plurality of catalyst branch tubes, one or more catalyst jet members and a carrier gas delivery member; the air pumping umbrella is disposed on the top wall of the pyrolysis reactor and is connected to oil gas outlets; and the distributor is arranged on the top wall of the pyrolysis reactor and is connected to a feed port through a flange. The pyrolysis reactor provided by the invention can significantly improve the pyrolysis efficiency.

The invention relates to a biomass poly-generation comprehensive utilization method and device. The method comprises the steps of: naturally drying and roughly crushing biomass materials, then carrying out microwave heating and cracking in a microwave pyrolysis chamber, introducing thermal gas (tar) and solid semicoke which are generated by microwave heating and cracking into a microwave reforming chamber, and further carrying out microwave heating and reforming on the thermal gas (tar) to convert the thermal gas (tar) into synthesis gas under the catalytic reaction of the semicoke; activating and regenerating the semicoke after catalysis and reforming, and then sending to the microwave reforming chamber for continuous catalytic reaction. In the invention, directional conversion from biomass to synthesis gas is realized by means of microwave radiation, the semicoke generated by pyrolysis is used as a reforming catalyst, two technologies of microwave pyrolysis and microwave reforming are integrated, and the semicoke can be activated and regenerated for recycling under microwave radiation. The semicoke that is not suitable for recycling can also be returned to field directly or in the form of a compound fertilizer after being mixed with fertilizer to improve soil carbon sink and enhance soil fertility. Compared with other processes, the method has the advantage of high synthesis gas conversion rate improved by about 10%; the prepared synthesis gas has wide applications and can be used for synthesizing chemical products such as ammonia, dimethyl ether, fertilizer and the like. The method can realize the resource poly-generation comprehensive utilization of biomass.

A coke plant includes multiple coke ovens where each coke oven is adapted to produce exhaust gases, a common tunnel fluidly connected to the plurality of coke ovens and configured to receive the exhaust gases from each of the coke ovens, multiple standard heat recovery steam generators fluidly connected to the common tunnel where the ratio of coke ovens to standard heat recovery steam generators is at least 20:1, and a redundant heat recovery steam generator fluidly connected to the common tunnel where any one of the plurality of standard heat recovery steam generators and the redundant heat recovery steam generator is adapted to receive the exhaust gases from the plurality of ovens and extract heat from the exhaust gases and where the standard heat recovery steam generators and the redundant heat recovery steam generator are all connected in parallel with each other.

Methods of liquefying solid organic materials, such as coal, biomass and shale are described. Also described are apparatus useful to effect such changes.

A heat receiver, a reactor, and a heater utilize the heat of concentrated solar light for thermal decomposition and/or chemical reaction of coals, etc. The heat receiver includes: a side portion forming a substantially cylindrical side surface; a substantially circular bottom portion connected to the lower edge of the side portion; and a ceiling connected to the upper edge of the side portion. A substantially circular aperture is formed in the center of the ceiling. The heat receiver has a substantially cylindrical cavity and the opening portion is open. When the cavity has a diameter of D and a length of L, and the aperture has a diameter of d, d=D/2 or less and L=2D or more. Concentrated solar light entering the heat receiver is to be contained in the heat receiver to effectively utilize the solar light.

A method for transforming waste into carbon in a reactor, said method comprising: a) drying the waste by submitting said waste to a pressure of at least 3 bar, and a temperature of at least 250° C.; b) releasing the water vapor out of the reactor, and; c) carbonizing at least partially the waste by maintaining said waste during a period of time of at least 5 minutes to a pressure of at least 3 bar, and a temperature of at least 250° C., thereby obtaining carbon; and d) optionally separating non-organic material from the obtained carbon.

The invention belongs to the technical field of energy sources, and discloses a device and method for lignite and biomass microwave co-pyrolysis reaction. The device comprises a microwave furnace, a quartz reactor, a thermocouple, a temperature control instrument, a tar collector and a circulation cooling device. The method comprises the following steps of putting a mixed test sample for preparingthe lignite and biomass into the quartz reactor; putting the quartz reactor into a furnace cavity of the microwave furnace; inserting the thermocouple into the quartz reactor; connecting the thermocouple with the quartz reactor; starting the microwave furnace for co-pyrolysis reaction; guiding generated gas into the circulation cooling device; flowing tar products into the tar collector for storage; guiding co-pyrolysis gas into a gas collecting bag to be stored. Rest solid in the quartz reactor is semi-coke products. The problem of insufficient lignite and biomass combination utilization inthe prior art is solved. The device and the method provided by the invention have the advantages that the lignite and biomass can be cleanly and efficiently combined; mass industrial production is easily realized.

The invention relates to a pyrolysis device and a pyrolysis method for infrared pyrolysis of red mud catalyzed biomass. The pyrolysis device comprises a gas supply system, a pyrolysis reaction system and a product detection and recovery system. A gas cylinder, a gas mass flowmeter, a mixed gas preheater and a steam generator of the gas supply system are connected through a gas guide pipe. Tubular infrared heating elements of an infrared heating device are arranged around a pyrolysis reactor of the pyrolysis reaction system, a quartz plate with holes is mounted in the center of the pyrolysis reactor, and the product detection and recovery system is used for analyzing gas components on line. With the adoption of the device and the method, rapid temperature rise in the biomass pyrolysis process can be realized, the biomass and the red mud are subjected to innocent treatment through the device and the pyrolysis method based on the device, and high-quality tar and pyrolysis gas are obtained under the action of catalytic pyrolysis.

The invention discloses a 60kg microwave coking trial furnace and a coking method. The 60kg microwave coking trial furnace comprises a microwave energy action cavity (4), a smoke exhaust pipe (1) installed at the top of the microwave energy action cavity (4), air sections (3) symmetrically arranged on the two sides of the microwave energy action cavity (4), a waveguide transmission system (2) connected with the air sections (3), a microwave energy generator (7) connected with the waveguide transmission system (2), and a power control cabinet (8) connected with the microwave energy generator (7). The trial furnace is reasonable in design, high in degree of automation, high in microwave heating efficiency, long in service life and stable in performance, saves more energy than a traditional electric heating trial furnace, and is strongly environmentally friendly.

The invention discloses a low-temperature carbonization coke oven hot-water circulation use system. A cooling water jacket is connected below the coke oven for the heat exchange with a fervent semicoke. The system is characterized in that the hot water discharged from a cooling jacket (3) is delivered to a dehydrating tank (4) and a tar tank (1) for heating via a water delivery pipe (5), and is then delivered to a circulation water tank (2) via a water returning pipe (6) to be discharged back to the cooling jacket for recycling. A circulation waster pump (7) is mounted on the water returning pipe between the cooling jacket and the circulation water tank. The system sufficiently utilizes the heat of the discharged semicoke for the heat exchange with the circulation water within the cooling jacket so that the heated circulation water is directly delivered to heating pipelines of the dehydrating tank and the tar tank to play a role of heating. The system does not need a cooling tower and a steam boiler, only uses extremely little power as well as has simple equipments, low running costs, no waste exhaust and the heat energy that can be recycled.

The invention discloses a pyrolysis device and method. The pyrolysis device comprises a furnace, a heating device and a transfer device. The furnace comprises a hollow annular cavity, an annular laying plate capable of horizontally rotating is arranged on the bottom face of the cavity, a feeding port and a discharging port are formed in the side wall of the cavity, and the arrangement height of the discharging port is larger than that of the feeding port. The heating device is used for providing a heat source for pyrolysis. The transfer device is arranged in the cavity and comprises a first roller, a second roller and a lifting belt. In the operating direction of the laying plate, the first roller is arranged on the downstream side of the feeding port, and the second roller is arranged on the downstream side of the discharging port. In the vertical direction, the first roller is located above the feeding port and is adjacent to the feeding port, the second roller is located below the discharging port and is adjacent to the discharging port, and the lifting belt is arranged on the first roller and the second roller in a sleeving mode to cyclically roll. According to the pyrolysis device, the pyrolysis effect is good.

The invention relates to the oil-refining industry, in particular to the process of delayed coking with the purpose of obtaining oil coke and gas oil fractions. The exploitation of many delayed coking installations, particularly in the reprocessing of oil residues, from which coke with high sulfur content is obtained in the process of coking, is oriented to obtaining the maximum possible quantity of distillated fractions: gasoline, light and heavy coking gas oil. Further on, high quality motor fuels are produced from the obtained distillates by using hydro-catalytic processes - hydraulic cleaning, catalytic cracking, and hydrocracking.

The invention discloses a reaction apparatus of a microwave pyrolysis biomass. The reaction apparatus comprises a microwave pyrolysis unit, the microwave pyrolysis unit comprises a microwave thermal decomposition furnace, and at least a feed inlet arranged outside the microwave thermal decomposition furnace, the microwave thermal decomposition furnace comprises a solid-phase pyrolysis part and a gas-phase pyrolysis part connected in order from down to up, the solid-phase pyrolysis part comprises a solid-phase hollow circular column composed of metal mesh, and the solid-phase hollow circular column is filled with a solid-phase microwave absorbent and a catalyst. The reaction apparatus increases the pyrolysis heating rate, reduces the generation amount of solid carbon residue, increases theproportion of pyrolysis gas in products, and optimizes the pyrolysis reaction process, has the advantages of simple equipment, less land occupation, and convenient operation, can complete operation ofcontinuous feeding and deslagging, and is convenient for operation and management.

The invention provides a rotary radiation bed. The rotary radiation bed comprises a radiation bed cylinder and a heating device, wherein the radiation bed cylinder is arranged rotationally around the axis of the radiation bed, a feeding device is arranged at one end of the radiation bed cylinder, and a discharging device is arranged at the other end of the radiation bed cylinder; at least part of the heating device is arranged in the radiation bed cylinder and used for heating a raw material entering the radiation bed cylinder. With the adoption of the rotary radiation bed of the technical scheme, continuous feeding into the radiation bed cylinder can be performed through the feeding device, slack coal is evenly heated and dry-distilled by the heating device in the radiation bed cylinder, dry-distilled gas and coal slag are discharged continuously by the discharging device, and accordingly, the dry distilling efficiency of the slack coal is effectively improved, and the problem of lower work efficiency of raw coal dry distilling equipment in the prior art is solved.