Abstract:
Method and apparatus are disclosed for separating fluid bed granular particles and flyash which are entrained in the exhaust gases of a fluid bed reactor for return of the granular material to the fluid bed. The separation is accomplished in at least a two-stage inertial separation method and apparatus wherein the granular particles are separated in the first stage and flyash is separated from the exhaust gases in the second stage. Flyash separated from the exhaust gas with the granular particles can be separated from the granular particles and directed to residue storage. Heat exchange is disclosed between the exhausting combustion gases in the inertial separators and air being directed to the fluid bed for fluidization.
Abstract:
Method and apparatus are disclosed for liquid waste disposal using combustible waste material as a fuel in a fluid bed reactor. One combustion ingredient can be solid waste and one liquid waste ingredient can be sewage sludge. Control of the liquid feed is disclosed to control fluid bed temperature and control of combustible material feed is disclosed to control oxygen-to-combustibles ratio in the combustion chamber. A secondary bed/elutriation arrester may be provided above the principal fluid bed. Particle separators for the combustion gases are provided and air pollution suppressants are added to the bed as required.
Abstract:
The invention relates to a system for the regenerative thermal oxidation of crude gas, comprising a combustion chamber (29) and a plurality of regenerators (30, 32, 34, 36, 38, 40, 41) which each have a regenerator chamber (42, 44, 46, 48, 50, 52, 54) that communicates with the combustion chamber (29) and contains a heat exchanger (56). The system contains a supply line (58) for feeding crude gas into a crude gas line (60) and has a clean gas line (62) for giving off clean gas, wherein a regenerator chamber (42, 44, 46, 48, 50, 52, 54) of a regenerator (30, 32, 34, 36, 38, 40, 41), in each case independently of the regenerator chambers (42, 44, 46, 48, 50, 52, 54) of the rest of the regenerators (30, 32, 34, 36, 38, 40, 41), can be optionally connected to the crude gas line (60) and separated from the crude gas line (60) via an adjustable crude gas shut-off device (64, 66, 68, 70, 72, 74, 75), as well as optionally connected to the clean gas line (62) and separated from the clean gas line (62) via an adjustable clean gas shut-off device (76, 78, 80, 82, 84, 86, 88). According to the invention, the system comprises a separating device (90) for separating suspended particles in crude gas fed into the crude gas line (60) from the supply line (58).
Abstract:
The instant disclosure described a system and method to prevent the oxidizer overheating using cold side bypass for a VOCs treatment system with series rotor, which may be used in an organic waste air treatment system. The system is equipped with a Thermal Oxidizer (TO), a First Heat Exchanger, a Second Heat Exchanger, a third heat exchanger, a First Cold-Side Transporting Pipeline, a First Adsorption Rotor, a Second Adsorption Rotor, and a Chimney. There is a Cold-Side Proportional Damper installed between the First Desorption-Treated Air Pipeline and the First Cold-Side Transporting Pipeline, or it is installed on the First Desorption-Treated Air Pipeline. When the VOCs concentration becomes higher, the Cold-Side Proportional Damper can regulate the airflow to adjust the heat-recovery amount or concentration, when treating the organic waste air, it can prevent the TO from being overheated due to high oxidizer temperature, and protect it from Thermal Oxidizer shut-down.
Abstract:
A method for transferring thermal energy to a separate endothermic process includes: (a) providing a carbon dioxide (CO2) stream and a carbonaceous fuel to a heater; (b) reacting the carbonaceous fuel in the heater to produce a heated stream; (c) transferring heat from the heated stream to the separate endothermic process; (d) separating the CO2 stream from the heated stream after (c); and (e) recycling the CO2 stream to the heater after (d).
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:
Waste processing system, for performing a waste processing process, the system including a shredder, a grinder and a steam explosion device such as a cooking extruder. The waste processing system is used to process raw waste, such as consumer waste, into an end product such as pellets. The waste processing includes an acid treatment step to sanitize, purify and/or increase a cellulose content of the waste. The acid is preferably a weak acid and/or an organic acid.
Abstract:
A method and an apparatus for disposing wastes comprising the steps of conducting a hydrothermal decomposition reaction of the wastes, separating the products into a solid fuel and waste water, combusting the solid fuel, scrubbing the combustion gas, generating steam using the heat generated by the combustion, and purifying the waste water, exhibit a high energy-efficiency, while exhibiting a high removal rate of the pollutants generated during the combustion.
Abstract:
Waste processing system including a shredder, a grinder and a steam explosion device such as a cooking extruder. The waste processing system is used to process raw waste, such as consumer waste, into an end product such as pellets. One potential use for these pellets is pyrolization to form biogas. Because of the uniformity composition of the processing waste (see DEFINITIONS section), imparted by the shredder and grinder, and because of the uniformity of distribution of plastic in the processing waster, imparted by the steam explosion processing, the end-product made by systems according to the present invention are superior with respect to several physical characteristics and especially well suited for pyrolization to make biogas.
Abstract:
The present invention refers to a method and a system for the complete recycling of municipal solid wastes with minimal environmental impact and with the exploitation of the wasted solid recovery fuel (WSRF) for the production of electric energy and/or hydrogen. Those results are achieved by means of the gasification of the WSRF in a reactor where the volatile and the inorganic components are combusted separately thus allowing contemporary the further treatment of the synthesised gas and the recovery of mineral and metallic molten granulates.