Abstract:
A system and method of integrated waste management having a source of a combustible waste material, a separator for separating the combustible waste material from a recyclable material, an airless drier for drying the combustible waste material to generate a pyrolysis feedstock, and a pyrolyser for pyrolysing the pyrolysis feedstock to form char and pyrogas. The system and method for power generation may also use an oxidiser for the high-temperature oxidation of syngas generated from the pyrolysis feedstock to generate heat for power production.
Abstract:
A process for the treatment of waste, the process comprising either a gasification step or a pyrolysis step to produce an offgas and a non-airborne, solid char material; followed by a a plasma treatment step. An associated apparatus having a plasma treatment unit which is separate from the gasification unit or pyrolysis unit.
Abstract:
The gasifier operates to mix a start up heat source with crude syngas combustion for driving gasification of waste. Combustion flue gas can be maintained above 650° C. until reaching a quench to prevent formation of dioxins. Excess heat is liberated through a heat recovery unit. The gasifier can operate in a batch mode to process small batches of waste efficiently for small installations, such as ships, apartment buildings, hospitals and residences.
Abstract:
Provided is a dry distillation and gasification typed incinerator capable of saving time and fuels required for combustion aid. In a first phase when a waste material A stored in a dry distillation furnace 1 is ignited till a fire bed is formed, the dry distillation and gasification typed incinerator supplies air to the dry distillation furnace 1 through an air supply passage 13. When the waste material A is in a continuous combustion state (a second phase), the oxygen supply to the dry distillation furnace 1 is switched from the air supply by the air supply passage 13 to the concentrated oxygen supply by an oxygen supply passage 15.
Abstract:
The invention relates to a method of carrying out pyrolysis process in a pyrolysis reactor (4) for solid fuel to produce pyrolysis oil. The method comprises supplying solid fuel into a drying zone in the pyrolysis reactor (4) for removing moisture containing gases, drying the solid fuel in the drying zone and extracting the moisture containing gases re-moved from the solid fuel out of the pyrolysis reactor (4), passing the dried solid fuel from the drying zone to the pyrolysis zone of the pyrolysis reactor (4), pyrolyzing the dried solid fuel for separating pyrolysis gases from the dried solid fuel and conducting the pyrolysis gases from the pyrolysis reactor (4) to a condenser (8) for producing pyrolysis oil.
Abstract:
Waste burning means, gas treating means in communication with said waste burning means and gas separating means in communication with said gas treating means and waste burning means, said waste burning means includes a burning chamber and pressurized pyrolysis chamber, wherein burning chamber is being made such that it is capable of burning completely organic wastes thereof, whereby gas products of combustion are produced, and said pyrolysis chamber being made such that it is capable of converting plastic wastes into synthesis gases through utilization of heat from the burning chamber, heat exchanging means disposed within the burning chamber being arranged in a manner wherein water from a water source is capable of conversion into steam thereof through utilization of heat in the burning chamber, said gas treating means includes a secondary treatment chamber in communication with the burning chamber, wherein high temperature gas products of combustion coming from the burning chamber is capable of mixing with low temperature steam, said gas separating means being arranged such that the gas products mixed with steam coming from the gas treating means is capable of swirling cyclonic motion thereof, thereby allowing the lighter gases to be discharged to the atmosphere and be separated from particulates and heavier gases which are subsequently recycled and feed back into the burning chamber, and steam and synthesis gas lines provided in the waste burning means being arranged such that it is capable of introduction to the burning chamber the steam produced by the heat exchanging means and synthesis gas coming from the pyrolysis chamber.
Abstract:
Disclosed herein is a system for purifying contaminated soil, which restores soil contaminated by a variety of pollutants to the condition before the contamination, and which itself provides the driving source required for the purification. The system includes: a dryer which dries contaminated soil, separates waste gas generated during the drying from the contaminated soil, and discharges the waste gas; a pyrolysis apparatus which indirectly heats the dried contaminated soil in a hermetic condition to divide the contaminated soil into purified soil and pyrolysis gas, and separately discharges the purified soil and the pyrolysis gas; a transfer fan for forcibly transferring the discharged pyrolysis gas; a burner for oxidizing the waste gas discharged from the dryer and the pyrolysis gas forcibly transferred by the transfer fan, to heat the pyrolysis apparatus; and a cooling facility for directly spraying cooling water on the discharged purified soil to cool the purified soil.
Abstract:
A waste treatment system is disclosed having: (1) a pyrolyzer comprising an inner and outer chamber, wherein the inner chamber further comprises a syngas outlet; (2) a thermal oxidizer comprising an elongated combustion chamber; (3) an exhaust gas transfer duct fluidly coupled to the combustion chamber of the thermal oxidizer and the outer chamber of the pyrolyzer; and (4) a particulate separator for removing particulates from the syngas. In preferred embodiments the pyrolyzer and the thermal oxidizer are aligned in piggybacked configuration, such that the hot exhaust gases from the thermal oxidizer are shunted back to the outer chamber of the pyrolyzer. Preferred thermal oxidizer and the exhaust gas transfer duct are configured to allow a three second residence time of the syngas, such that the system operates at an efficiency of at least 15 therms (thm) per ton of municipal waste.
Abstract:
A reactor (107) for pyrolysis of carbonizable plastic and rubber materials is disclosed including at least an earlier stage reaction chamber (401) and a later stage reaction chamber (105), in which the earlier stage reaction chamber receives the materials for pyrolysis, and the later stage reaction chamber receives treated materials from the earlier stage reaction chamber for subsequent pyrolysis, and the reactor (107) includes a three-way valve (407) for directing the gaseous pyrolysis products from the later stage reaction chamber to one of three pathways, each to a different destination.
Abstract:
An apparatus for gasifying solid organic fuel includes a refractory-lined oxidation chamber, fuel storage, a transfer connecting the fuel storage with an inlet into the oxidation chamber for transferring in an upwardly inclined direction the solid fuel from the fuel storage into the inlet to form an upwardly mounded fuel bed. An oxidant is supplied into the fuel bed to gasify the organic materials in the fuel to produce a gaseous effluent from the fuel bed, thereby leaving a residue of the fuel. The residue drops through an opening under the oxidation chamber onto a residue removal transfer. The oxidant is supplied through a plurality of perforated air distribution members extending across the fuel bed cavity in the oxidation chamber so as to introduce air into the interior of the fuel bed to thereby promote evenly distributed gasification, evenly distributed through the fuel bed.