7results about How to "Efficient pyrolysis" patented technology

The invention relates to the technical field of waste plastic treatment, in particular to a waste plastic grading carbonization device and a waste plastic treatment method. The waste plastic grading carbonization device comprises a feeding hopper, a crushing device, a grinding device, a screening device, a catalyst self-adaptive proportioning device, a first spiral discharging machine, a first-stage carbonization chamber, a second-stage carbonization chamber, an activation chamber, a second spiral discharging machine, a solid product collecting device, a liquefaction device, a liquefied product collecting device, a cooling water circulating device and a third spiral discharging machine, a material returning bin and a tail gas treatment device. According to the invention, through the collaborative innovation of'grading carbonization 'and'catalyst self-adaptive proportioning device', the problems of incomplete and non-uniform carbonization of the waste plastics, inadequate utilization of gas products and the like in the pyrolysis process of the waste plastics are solved, and an industrial feasible path is provided for chemical recovery of the waste plastics; the device is reasonable in overall structural design and high in treatment energy efficiency, and continuous, sufficient and efficient pyrolysis and high-value conversion of the waste plastics are achieved.

The invention discloses a coal and oil shale oil gas resource co-mining system and method. According to the system, an injection device comprises a pressurizing direct flow pipe, a feeding pipe and a mixer; the pressurizing direct flow pipe is connected with the injection well; the feeding pipe and the mixer are connected to the pressurizing direct flow pipe; the gasifying agent adjusting device comprises a flow adjusting valve and a flow meter; the flow regulating valve is connected in series to the pressurizing direct flow pipe; a separation device in the extraction assembly is connected with an extraction well; the three-dimensional geological monitor is arranged on the earth surface; the temperature probe is mounted on the side wall of the production well; the pressure probe is mounted on the side wall of the injection well; a product meter in the collection assembly is connected with a separation device; the method comprises the steps that high-temperature water vapor and pure oxygen are mixed through a mixer to form a gasifying agent, then the gasifying agent is injected into a coal seam goaf, the gasifying agent and residual coal are subjected to a combustion reaction to generate high-temperature coal gas, the high-temperature coal gas and overlying oil shale are subjected to a pyrolytic reaction to generate an oil-gas mixture, and the oil-gas mixture is extracted to the earth surface to be separated. By means of the system and method, efficient and green co-mining of coal and oil shale can be achieved.

The present application discloses a waste salt processing type pyrolysis device with a coke processing function, the waste salt processing type pyrolysis device with a coke processing function comprises a rotary kiln, a coke processing mechanism and a combustible flue gas processing mechanism, the waste salt processing type pyrolysis device with a coke processing function pyrolyzes waste salt and pyrolyzes organic matter in the waste salt into combustible gas and solid organic carbon to form ash, uses the heat of the secondary combustion of the combustible gas to preheat air, thereby providing preheated air for subsequent fuel combustion to generate high-temperature flue gas and ultra-high temperature superheated steam, thereby increasing the utilization rate of industrial waste salt, and avoiding direct emission of combustible flue gas to pollute the environment, the overall operation is more energy-saving and environmentally friendly, and the coke generated by the pyrolysis of the waste salt is automatically scraped off and ultra-high temperature superheated steam is used to prevent the waste salt from coking, thereby realizing cleaning and prevention in one, compared with the existing rotary kiln device, the waste salt pyrolysis operation can be smoothly performed, so that the waste salt can be efficiently pyrolyzed.

The present application relates to a kind of methods and devices for preparing anhydrous hydrogen fluoride and sulfuric acid.The method comprises the following steps: removing impurities from industrial waste fluorosulfuric acid, mixing it with concentrated sulfuric acid to form a pretreated mixture; using microwave heating to rapidly heat the reactor, a static bed is arranged in the reactor; the pretreated mixture is passed into the upper surface of the static bed in the preheated reactor, the pretreated mixture is heated by microwave, and hydrogen fluoride and sulfur trioxide gas are generated by the decomposition of the pretreated mixture; hydrogen fluoride and sulfur trioxide are mixed and passed into low-temperature concentrated sulfuric acid to absorb sulfur trioxide gas; then passed into low-temperature condensing equipment, and liquid hydrogen fluoride is collected; the liquid hydrogen fluoride is purified by rectification; and the concentrated sulfuric acid that absorbs sulfur trioxide is evaporated and concentrated.The advantages are: using a "static bed + material" double-wave absorption system, achieving more uniform and stable temperature field distribution in the liquid layer of industrial waste fluorosulfuric acid, making the pyrolysis of industrial waste fluorosulfuric acid more efficient and stable.

The utility model provides an organic waste plasma pyrolysis and cracking integrated device, relates to the technical field of garbage resource utilization, the organic waste plasma pyrolysis and cracking integrated device comprises a box shell, a plasma torch, a pyrolysis mechanism and a feed pipe, a cracking chamber is formed in the box shell, a hydrogen outlet is formed in the box shell, and the plasma torch is arranged in the cracking chamber. The hydrogen outlet is communicated with the cracking chamber; the plasma torch is arranged on the box shell, and the output end of the plasma torch is located in the cracking chamber; the pyrolysis mechanism comprises a pyrolysis chamber arranged in the cracking chamber and an exhaust pipe, one end of the exhaust pipe is communicated with the pyrolysis chamber, the other end of the exhaust pipe protrudes out of the box shell, a sealing plug is connected to the exhaust pipe, the exhaust pipe is further communicated with a gas guide pipe, and the other end of the gas guide pipe is communicated to the plasma torch; one end of the feeding pipe is communicated with the pyrolysis chamber, and the other end is connected with a feeding furnace door. The pyrolysis chamber is arranged in the cracking chamber, the high-temperature environment in the cracking chamber is fully utilized, and the high temperature in the cracking chamber can directly act on the pyrolysis chamber, so that the pyrolysis process is more efficient, the heat loss is reduced, and the energy consumption is reduced.

The utility model belongs to heavy oil processing equipment technical field especially, a kind of ploughshare type coking machine, including frame, coking bin, power mechanism and filter system, coking bin is fixed in frame, the first baffle and second baffle that coking bin's bin body shell is equipped with will bin body be sequentially separated into pre-coking area, main reaction zone and discharge area;Power mechanism is located at the frame and drives two horizontal and parallel arrangement's rotating shaft, rotating shaft extends into the coking bin and is equipped with ploughshare group;Filter system includes at least one metal sintered mesh filter, is installed in coking bin top and is communicated with bin. By setting double rotating shaft cross ploughshare group, realize three-dimensional shearing mixing, improve material mixing uniformity, avoid caking and local overheating, set two different height baffle in closed coking bin, significantly improve pyrolysis efficiency, reduce backmixing phenomenon, ensure that material is fully reacted, mechanical seal and packing seal double protection, completely eliminate toxic gas leakage.

The invention discloses a method for catalyzing high-efficiency hydrolysis of hexafluorophosphate radicals in wastewater by high-valence metal cations, which comprises the following steps of: enabling PF6 <-> to form a Lewis acid-base pair intermediate which is easily attacked by nucleophilic substances (water) by utilizing the characteristic that the high-valence metal cations in water have strong Lewis acidity and can be combined with fluorine atoms on the PF6 <->; the high-temperature hydrolysis reaction energy barrier of PF6 <-> is greatly reduced, preliminary pyrolysis of PF6 <-> is realized, a large amount of H < + > is generated, then, the H < + > generated by hydrolysis interferes with the electronic structure of PF6 <-> due to the strong polarization effect of the H < + >, the thermal stability of PF6 <-> can be further reduced, and high-valence metal cations and H < + > are synergistically catalyzed, so that efficient pyrolysis of hexafluorophosphate radicals is realized. The method provided by the invention has the advantages of high hydrolysis efficiency, low operation cost, no need of extreme acid-base environment, low equipment corrosion, easy realization of engineering application and the like.