Provided is a pyrolysis gasification system including a hopper, a loading chamber, a gas generating furnace, an ash discharge unit, and an oxygen supply unit, wherein the loading chamber is provided at an upper end thereof with a first sealing gate to seal the loading chamber, and the gas generating furnace is provided at an upper portion thereof with a second sealing gate to seal the gas generating furnace, such that when the raw material is fed into the gas generating furnace, external air is prevented from entering the gas generating furnace and combustion gas in the gas generating furnace is prevented from being discharged to an outside, whereby oxygen is supplied into the gas generating furnace to increase the content and concentration of carbon monoxide and hydrogen in combustion gas generated during pyrolysis, and thus it is possible to increase the production of syngas.

The present disclosure provides a method and an apparatus for implementing gasification by combining a circulating fluidized bed and a pyrolysis bed. The method and the apparatus may be applied to raw coal for generating coal gas with a high raw coal gasification rate while producing no pollutants, such as tar, during gasification. The apparatus includes a circulating fluidized bed gasification furnace and a pyrolysis bed gasification furnace. In the circulating fluidized bed gasification furnace, raw coal is converted to coal gas along with carbon-containing fly ash and semicoke, with the latter two separated from the coal gas using a cyclone separator and a deposition chamber. The semicoke is further processed by the pyrolysis bed gasification furnace to generate more coal gas, whereas the carbon-containing fly ash is sent back to the circulating fluidized bed gasification furnace for further combustion.

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.

A pyrolysis gasifier includes a tubular body configured to receive and pyrolyze a combustible waste, a bottom door disposed below the tubular body to selectively seal the tubular body, a main frame supporting the tubular body, a base frame supporting the bottom door, an automatic ash processor configured to, while traveling in one direction, push and remove ash remaining on the bottom door after pyrolysis of the combustible waste, and a guide frame supporting the automatic ash processor and configured to guide the travel of the automatic ash processor.

Disclosed are exemplary embodiments of thermal conversion reactors and assemblies/units, systems, and methods including the same for thermally converting landfill-bound plastic waste (broadly, polymeric materials) into electrical energy.

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.

The invention includes a downdraft gasifier having a rotatable auger/grate extending through its reduction zone. The auger at times moves biofuel through the gasifier and at times supports it in the gasifier. A frusto-conical biomass grate funnels biomass onto the auger and is perforate for permitting the passage of gases while retaining the biomass. A guide tube surrounds the auger below the frusto-conical biomass grate. The invention also includes mixing gas or solid particulate fuel in a conduit segment that houses a mixing chamber. Fuel is fed through a fuel inlet port into the mixing chamber. High velocity combustion air from a blower is forced into the mixing chamber through a restricted orifice that generates a suction pressure for drawing gas or solid particulate fuel into the mixing chamber. A combustion chamber supply conduit delivers fuel from the mixing chamber into a burner.

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.

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.

This slag discharge system (1) includes: a slag hopper (5) of a coal gasifier (2); a slag discharge line (7) that discharges a mixture of slag and slag water (W); a slag separation device (10) that separates the slag from the mixture of slag and slag water (W); a circulation pump (24) that forms a water flow from the slag hopper (5) to the slag separation device (10) in the slag discharge line (7); a lock hopper (14) that stores slag which has been separated at the slag separation device (10) and discharges the same out of the coal gasifier (2) system: a slag discharge valve (15) that is provided on a lower outlet of the lock hopper (14); and a slag water return flow line (20) for returning the slag water (W) which has been separated at the slag separation device (10) to the slag hopper.