9 results about "Plasma gasification" patented technology

The utility model discloses a rotary kiln type microwave plasma dangerous waste treatment device relates to plasma dangerous waste treatment technical field, including the processing box, the top one side of processing box is provided with gasification furnace, the inside of processing box is provided with filter screen, the top of filter screen is provided with draw -in rod, the inside of processing box is provided with activated carbon tank one side close to filter screen, the top of activated carbon tank is provided with handle. The utility model discloses a filter screen and in the activated carbon tank of having the activated carbon material of inside equipment can carry out the depth purification to the gas after plasma gasification treatment, and its advantage lies in: filter screen can efficiently intercept the solid particulate matter produced in the gasification process, and activated carbon can further adsorb the harmful gas remaining in the tail gas owing to the huge specific surface area and strong adsorption performance, realizes multiple purification effect, ensures that the emission gas meets the environmental protection standard, and the filter screen can be taken out from the processing box by pulling the draw -in rod upwards, and it is cleaned.

The application provides a double sandwich cup type dielectric barrier discharge fuel plasma gasification research device, three quartz cups with different sizes are nested and combined, a double layer cavity is formed at the bottom of the quartz cup, air in the upper layer cavity is extracted to form a vacuum layer, heat transfer in the heating area to the dielectric layer and the sealing area of the upper quartz cup is blocked, the quartz dielectric is prevented from being broken down under high temperature conditions, and air leakage caused by melting of the sealing structure under high temperature conditions is avoided. The lower layer cavity is used for placing a solid sample to carry out high temperature plasma reaction, reaction kinetics is obtained by detecting tail gas of the reaction, the thickness of the reaction cavity is controlled through the sealing pad, and the dead volume of the reaction is reduced. The circular protrusion in the grounding heating block binds the electric arc generated by the discharge electrode, and the discharge phenomenon at the edge of the discharge electrode is avoided. The integrated design reduces the complexity of installation of the experimental instrument, is easy to operate, and realizes the research on the plasma gas-solid reaction mechanism under the dielectric barrier discharge under high temperature conditions.

The invention discloses a plasma treatment system for medical waste treatment and hydrogen recovery and a treatment method thereof. The system comprises a pretreatment and feeding system, a stock bin, a plasma gasification furnace, a waste heat boiler, an ash residue collection system, a tail gas treatment system, a hydrogen recovery system and a public and auxiliary system which are communicated in sequence. Wherein a plasma generator is arranged at the middle lower part of the body of the plasma gasification furnace. Volume reduction, weight reduction and harmless treatment of medical waste can be achieved, and meanwhile recyclable hydrogen is generated.

The present invention relates to a process for manufacturing synthesis gas from end-of-life tires which comprises reducing the size and sorting if said end-of-life tires into sorted fragments. The sorted fragments are then subjected to a gasification reaction in at least one plasma gasifier comprising at least three plasma torches. Thereby, the sorted fragments of end-of-life tires are converted into synthesis gas whereby less CO2 is produced in comparison to state- of-the-art processes for treatments of end-of-life tires. Said synthesis gas is then preferably used as a feedstock for manufacturing synthetic fuels such as methane, methanol, Fischer-Tropsch hydrocarbons (and upgraded products made thereof).

The invention provides a plasma gasification and melting intelligent control system for solid waste treatment, and relates to the technical field of intelligent control, and the system comprises an acquisition module which is used for acquiring material level distribution data of a plurality of different heights in a gasification furnace; the first determining module is used for determining a material level stability potential function according to the material level distribution data; the calculation module is used for calculating a vortex risk factor for describing the material level accumulation degree based on the material level stability potential function; the screening module is used for screening a material level abnormal area based on the vortex risk factors; the output module is used for outputting the local material level compensation amount in the material level abnormal area with the vortex risk factor smaller than the preset vortex risk factor as the target; the second determining module is used for determining plasma power based on the compensated material level distribution data; and the treatment module is used for treating the solid waste according to the plasma power. The problems of local accumulation, insufficient combustion and synthesis gas quality fluctuation are solved, and collaborative optimization of treatment efficiency and energy efficiency is realized.

This invention relates to a method for the co-utilization of existing landfill waste and landfill gas to produce renewable methanol. RDF (Regenerative Thermal Deposition Facility) is pretreated and then purified into high-temperature syngas through pyrolysis, plasma gasification, desulfurization, and steam reforming. This purified syngas is mixed with steam-reformed landfill gas and green hydrogen obtained from water electrolysis, and the ratio is adjusted to obtain a methanol reaction feedstock gas satisfying [H2 / (2CO+3CO2)=0.9-1.1]. The feedstock gas is then used to produce methanol through a methanol synthesis reaction. Under a recycle ratio of 0.6-0.8, the hydrogen-to-carbon ratio of the syngas is 0.89-1.01, the methanol production exceeds 17 tons / hour, the system energy efficiency exceeds 75%, and the CO2 equivalent emission reduction rate is 82.5-91.7%. This invention achieves complementary carbon source utilization and hydrogen-to-carbon ratio through the parallel use of landfill waste and landfill gas as dual gas sources, improving system load stability and heat cascade utilization efficiency, and providing a new solution for the co-resource utilization of waste and the large-scale production of renewable methanol.

A waste gasification system employs extender tubes to conduct externally generated plasma to a central surface area of a contained pool of molten slag to promote efficient gasification.

The invention relates to a method for preparing renewable methanol by synergistically utilizing stock landfill garbage and landfill gas. According to the method, RDF is prepared through pretreatment, purified high-temperature synthesis gas is obtained through pyrolysis, plasma gasification, desulfurization and steam reforming, the purified high-temperature synthesis gas is mixed with waste landfill gas obtained through steam reforming and green hydrogen obtained through water electrolysis, the proportion is adjusted, methanol reaction raw material gas meeting the requirement that H2 / (2CO + 3CO2) = 0.9-1.1 is obtained, and then methanol is prepared from the raw material gas through a methanol synthesis reaction. Under the condition that the recycle ratio is 0.6-0.8, the hydrogen-carbon ratio of the synthesis gas is 0.89-1.01, the methanol yield exceeds 17 tons per hour, the system energy efficiency exceeds 75%, and the CO2 equivalent emission reduction rate is 82.5-91.7%. According to the invention, through'double-gas-source parallel 'of landfill garbage and landfill gas, carbon source utilization complementation and hydrogen-carbon ratio complementation are realized, the load stability of the system and the gradient utilization efficiency of heat are improved, and a new scheme is provided for collaborative recycling of wastes and large-scale production of renewable methanol.

This invention provides a coal-fired power plant coupled with plasma gasification for cogeneration of methanol, belonging to the field of energy utilization. The system includes: a coal-fired power generation system for producing electricity by burning coal and emitting flue gas; a plasma gasification subsystem connected to the coal-fired power generation system for plasma gasification of solid waste to produce syngas; a carbon capture subsystem connected to both the coal-fired power generation system and the plasma gasification subsystem for decarbonizing the flue gas emitted from the coal-fired power generation system, absorbing carbon dioxide from the flue gas, emitting carbon dioxide gas, and exchanging heat with the plasma gasification subsystem; and a methanol synthesis subsystem connected to both the plasma gasification subsystem and the carbon capture subsystem for producing methanol based on syngas and carbon dioxide gas. This invention improves power generation efficiency and energy utilization.