摘要:
An apparatus for and method of smokeless charging of a heated coke oven with coal at a lower temperature than the temperature of the oven is disclosed. The oven of the apparatus is provided with a charging aperture for receiving the coal and with an exhaust aperture for any gases evolved in the oven. The oven has a collector main connected to the exhaust aperture and an exhaust means connected to the collector main for removing gases from the oven. A Larry car is movable on the oven and has hopper means adapted to contain the coal. The hopper means has discharge means movable into registry with and into sealing engagement with the charging aperture. Gate means are on the hopper means for controlling the flow of the coal through the discharge means and through the charging aperture into the oven. A charging gas collecting main is on the oven in communication with the exhaust means. A conduit means on the Larry car communicates with one of the discharge means, the hopper means, and the charging aperture and is connectable to the charging gas collector main. The exhaust means is operable (when the coal engages the oven and substantial quantities of charging gas and displaced oven gas are evolved) to simultaneously exhaust the charging gas and the oven gas through the exhaust aperture and the charging aperture. The conduit means is operable when connected to the one and to the charging gas collector main to prevent the escape of the charging gas and the oven gas through the hopper means and the discharge means to the atmosphere.
摘要:
A feedstock delivery system transfers a carbonaceous material, such as municipal solid waste, into a product gas generation system. The feedstock delivery system includes a splitter for splitting bulk carbonaceous material into a plurality of carbonaceous material streams. Each stream is processed using a weighing system for gauging the quantity of carbonaceous material, a densification system for forming plugs of carbonaceous material, a de-densification system for breaking up the plugs of carbonaceous material, and a gas and carbonaceous material mixing system for forming a carbonaceous material and gas mixture. A pressure of the mixing gas is reduced prior to mixing with the carbonaceous material, and the carbonaceous material to gas weight ratio is monitored. A transport assembly conveys the carbonaceous material and gas mixture to a first reactor where at least the carbonaceous material within the mixture is subject to thermochemical reactions to form the product gas.
摘要:
A feedstock delivery system transfers a carbonaceous material, such as municipal solid waste, into a product gas generation system. The feedstock delivery system includes a splitter for splitting bulk carbonaceous material into a plurality of carbonaceous material streams. Each stream is processed using a weighing system for gauging the quantity of carbonaceous material, a densification system for forming plugs of carbonaceous material, a de-densification system for breaking up the plugs of carbonaceous material, and a gas and carbonaceous material mixing system for forming a carbonaceous material and gas mixture. A pressure of the mixing gas is reduced prior to mixing with the carbonaceous material, and the carbonaceous material to gas weight ratio is monitored. A transport assembly conveys the carbonaceous material and gas mixture to a first reactor where at least the carbonaceous material within the mixture is subject to thermochemical reactions to form the product gas.
摘要:
A system and method of converting tires or other solid carbon based material is disclosed, wherein the system and method includes providing a chamber, feeding tires or other solid carbon based material or both into the chamber, rotating the chamber and heating and reducing the material in the chamber, collecting solid residue from the chamber, collecting vapor from the chamber, and converting vapor collected from the chamber to a liquid. The chamber has an interior surface and can include one or more ribs on the interior surface for rotating and tumbling the material in the chamber while heating the material. In another embodiment, wherein the material includes tires, the system and method includes rotating and heating the tires in the chamber causing the tires to collapse and liquefy, exposing the metal in the tires which aids in grinding the carbon material in the tires as they tumble, collecting solid residue, for example, tire carbons, such as carbon black, and collecting vapor, for example, vaporized oil, and benzene and methane gas from the chamber and converting the oil to, for example, No. 2 to No. 6 fuel oil. In yet another embodiment, the method includes heating the chamber to a temperature from about 500° F. to about 1000° F. using one or more low temperature gases reclaimed from the material.
摘要:
A molecular pyrodisaggregation system having a loading column for loading materials to be disaggregated into the pyrodisaggregator, a thermal propeller for generating hot fumes to circulate in the pyrodisaggregator, and a condenser connected to an exit from the pyrodisaggregator for cooling gases from the pyrodisaggregator. The pyrodisaggregator has a furnace having a furnace wall defining a chamber within the furnace, a fuser tube within the furnace chamber, a channel within the furnace chamber between the fuser tube and the furnace wall, an Archimedes screw within the fuser tube for moving material to be disaggregated through the furnace, a first exit for inert materials from the fuser tube, a second exit for gases from the fuser tube, and a third exit for fumes circulating through the channel in the furnace.
摘要:
The system and method described herein provide for the higher production rate fractionation of biomass for the purpose of selectively separating specific volatile components, which may subsequently be used in the production of a renewable liquid fuel, such as gasoline. Increased production rates of processing of biomass or other feedstock is achieved through the use of sealed reaction chambers, which may be transferred in a sealed configuration between stations in a multi-station processing system. Also, the present invention considers the use of piston assemblies for the dual functions of controlling fluid intake and exhaust (in combination with valves) and for providing a more robust and more cost effective sealing mechanism. The present invention may also achieve improved uniformity of biomass processing through the introduction of a mechanical agitator designed to mix the biomass during processing.
摘要:
A biomass thermal conversion system including a fixed bed drying zone; a fixed bed pyrolysis zone fluidly connected to the drying zone; a combustion zone fluidly connected to the pyrolysis zone by a material path; and a comminution mechanism arranged across the material path between the pyrolysis zone and the combustion zone, configured to grind char off a pyrolyzed surface of solid biomass and reduce a dimension of the solid biomass below a threshold size.
摘要:
A pyrolysis plant 20 comprises a grinding pyrolyser 22, being a machine or apparatus in which both particle size reduction and pyrolysis occur simultaneously. Plant 20 also comprises a bin (hopper) 30 for holding wet particulate biomass feedstock. Chute 32 leads from the bin 30 to a biomass dryer 34 which reduces moisture content of the feedstock as low as possible, e.g., to below about 10. Dried feedstock is conveyed from dryer 34 via line 36 to a dried biomass feedstock hopper 38. Dried feedstock is fed from hopper 38 into a chute 40 which leads to an inlet trunnion 42 of grinding pyrolyser 22. A discharge trunnion 44 of grinding pyrolyser 22 leads to a char holder 60 for collecting char particles and a condensation train 62 for condensing vapour generated by the pyrolysis to produce oil.
摘要:
A plurality of coking ovens are arranged in a horizontal row, and an endless scraper conveyor is mounted above the charging holes of the ovens and has an upper run and a lower run. A quantity of coal is admitted onto the lower run of the conveyor at one end portion thereof to be transported lengthwise of the row. Coal is charged from the lower run into respective ones of the ovens in a sequence which progresses from a downstream end of the row counter to the direction of transportation, and the charging of each oven is terminated when a signal is generated that indicates that a predetermined filling level in the oven has been reached.