403 results about "Catalytic combustion" patented technology

The invention belongs to the technical field of catalytic oxidation of carbon-containing industrial waste gas, and particularly relates to a Pd catalyst for catalytic combustion of carbon-containing waste gas as well as a preparation method and application of the Pd catalyst. The invention provides a Pd catalyst for catalytic oxidation of carbon-containing industrial waste gas such as CO and volatile organic pollutants VOCs. The Pd catalyst is obtained by compounding an amorphous CeO2 nano-cluster with a TiO2 substrate (marked as cCeO2 / TiO2) and indirectly regulating the form of Pd through gradient regulation of the content of the amorphous CeO2 nano-cluster by a sol-gel method on the basis of strong interaction of Pd and Ce species. The Pd catalyst prepared by the invention shows excellent low ignition temperature, high performance and certain universality in the catalytic combustion process of carbon-containing industrial waste gases such as CO and low-chain VOCs (Volatile Organic Compounds). In addition, the method for preparing the Pd catalyst is simple to operate and mild in condition, and has great industrial application potential and value.

The invention provides a cerium oxide photo-thermal synergistic catalytic material loaded with a metal promoter as well as a preparation method and application of the cerium oxide photo-thermal synergistic catalytic material. The cerium oxide photo-thermal synergistic catalytic material loaded with the metal promoter comprises a cerium oxide nanocrystal and the metal promoter loaded on the surface of the cerium oxide nanocrystal, the exposed crystal face of the cerium oxide nanocrystal comprises a {111} crystal face, and the area of the {111} crystal face accounts for more than 50% of the total area of the outer surface of the crystal face; the mass fraction of the metal cocatalyst is 0.1-2wt% of the mass of the cerium oxide. The catalytic material provided by the invention takes cerium oxide with a {111} crystal face as an exposed special crystal face as a carrier, photons can be captured and charges can be separated more efficiently, and phonons further promote deep trap state charge release. Meanwhile, the metal additive is added and cooperates with cerium oxide with exposed special crystal faces for catalysis, so that the catalytic effect is remarkably improved, and efficient catalytic combustion of methane is achieved under the mild condition.

The invention relates to a low-temperature-activated hydrothermal stable formaldehyde production tail gas purification catalyst and a preparation method thereof. The catalyst comprises an active component, a carrier, an active auxiliary agent and a hydrothermal stabilization auxiliary agent, wherein the active component is selected from any one or two of Pt, Pd and Ru; the carrier is active aluminum oxide, and the active auxiliary agents are La2O3 and SrO; and the hydrothermal stabilizing aid is borophosphate. The catalyst can be applied to a methanol-to-formaldehyde tail gas purification device, organic matters such as formaldehyde, methanol and dimethyl ether and CO in tail gas are simultaneously removed through catalytic combustion, and the problems that an existing catalyst is high in activation temperature and poor in hydrothermal stability are solved. After the catalyst is modified, the light-off temperature is reduced, the hydrothermal stability is obviously improved, the catalyst still has better low-temperature light-off and high-temperature activity after being aged for 15 hours at the temperature of 650 DEG C, the light-off temperature is not higher than 140 DEG C, outlet CO, methanol and formaldehyde are all smaller than 0.1 ppm, and dimethyl ether is smaller than 20 ppm.

The invention discloses a continuous foaming composite process for a pearl wool coiled material and a waste gas recovery system thereof, and belongs to the technical field of pearl wool processing. Aiming at the problems of low efficiency and waste gas pollution of a traditional intermittent process, the process realizes continuous production through raw material selection (the melt index of LDPE is 1.0-2.5 g / 10min), drying and mixing pretreatment, melting and plasticizing through a twin-screw extruder, injection of foaming agents such as butane under the pressure of 8-12MPa, extrusion foaming at a die head of 140-160 DEG C and combination of air-cooling and water-cooling shaping. The compounding link comprises multiple processes such as hot pressing and co-extrusion to adapt to different base materials, after-treatment is conducted through trimming, taper tension coiling and standing stress release, the product density fluctuation is + / -3%, and the peel strength is larger than or equal to 3 N / cm. According to the waste gas recovery system, negative pressure collection is conducted through a closed gas collecting hood, indirect cooling and alkali liquor spraying pretreatment are conducted, activated carbon adsorption concentration and catalytic combustion purification are conducted, the VOCs removal rate is larger than or equal to 98%, the emission concentration is smaller than or equal to 50 mg / m < 3 >, and efficient production and environmental protection benefits are achieved.

The invention discloses a purification device for chlorotoluene production waste gas and a use method thereof, and relates to the field of purification devices.The purification device is characterized by comprising a waste gas collection unit, a pretreatment unit, an absorption unit, a catalytic combustion unit, a deep purification unit and a tail gas detection and emission unit which are sequentially communicated along a waste gas treatment path; the device has the advantages that a three-stage treatment process of the absorption unit, the catalytic combustion unit and the deep purification unit is adopted, insoluble VOCs are comprehensively covered, and it is ensured that the concentration of chlorotoluene in tail gas is reduced to 10 mg / m or below; liquid chlorotoluene is removed through a gas-liquid separator of the waste gas collecting unit, then dust is intercepted through a filtering assembly of the pretreatment unit, cooling is conducted through a cooling assembly, blockage and inactivation caused by the fact that impurities are attached to a catalyst are prevented, meanwhile, HCl is removed in advance through the absorption unit, and acid gas is prevented from corroding a combustion furnace.

This utility model relates to the field of catalytic combustion device technology, and discloses a catalytic combustion device for industrial waste gas treatment, comprising: a catalytic combustion chamber, wherein a waste gas supply pipe is installed at the inlet end of the catalytic combustion chamber; an outlet pipe is disposed at the top outlet of the catalytic combustion chamber, a hot gas supply pipe is installed at the outlet end of the outlet pipe, a gas storage tank is installed at the outlet end of the hot gas supply pipe, and a dilution gas pipe is installed at the outlet of the gas storage tank. By mixing preheated air in the gas storage tank with high-concentration waste gas through the dilution gas pipe, the concentration of high-concentration waste gas can be reduced. Simultaneously, the air is heated, which reduces interference with the waste gas temperature and prevents high-concentration waste gas from directly entering the catalytic combustion chamber. This effectively prevents a sudden temperature rise inside the catalytic combustion chamber, avoids localized high temperatures inside the catalytic combustion chamber due to waste gas concentration approaching or exceeding the lower explosive limit, and improves the safety performance of the device.

The application provides a liquid nitrogen washing tail gas resource utilization system and method, and belongs to the technical field of tail gas treatment and energy recovery. The application uses a heat exchanger (1) to heat exchange the liquid nitrogen washing tail gas, so that the liquid nitrogen washing tail gas is combusted at a suitable working temperature of a first catalyst (3). In the application, the first catalytic combustion tower (2) is communicated with a constant temperature device, so that the temperature of the first catalytic combustion tower (2) is stably kept at 250-320 DEG C, the safety hidden danger caused by violent reaction is eliminated, and the catalyst cost is significantly reduced. Meanwhile, the steam generated after the constant temperature device is cooled can be used for enterprise heating and heating, and economic benefits are created. The application uses a second catalytic combustion tower (4) to fully catalytically oxidize the combustible gas in the first flue gas, and the generated second flue gas is partly used for heat exchange of the heat exchanger (1), and the gas after heat exchange and the other part of the second flue gas are used for heat supply of a coal mill (6), so that the heat is fully recycled and utilized.

The utility model discloses efficient energy-saving catalytic combustion equipment which comprises a plurality of inserting openings, the inserting openings are communicated with the interior of a catalytic combustion box, a fixing frame is movably inserted into the inserting openings in a sealed mode, a catalyst grid plate is detachably installed in the fixing frame, and the two side walls of the fixing frame are connected with the inner side wall of the catalytic combustion box in a sealed and sliding mode respectively. The rear side of the fixing frame abuts against a sealing plate, the two sides of the sealing plate are in sealed sliding connection with the inner side wall of the catalytic combustion box correspondingly, the two ends of the sealing plate are fixedly connected with sliding rods correspondingly, the sliding rods penetrate through the rear side wall of the catalytic combustion box in a sealed sliding mode and are fixedly connected with the rectangular plate, and the sliding rods are coaxially sleeved with compression springs. The two ends of the compression spring are fixedly connected with the rectangular plate and the side wall of the catalytic combustion box respectively, a fixing plate is fixedly installed at the front end of the fixing frame, the fixing plate is detachably connected with the front side wall of the catalytic combustion box, and a catalyst is more convenient to replace and does not need to be shut down. The method adapts to the technical field of catalytic combustion.

The application discloses a catalytic combustion heater principle prototype, which comprises an air tank, a methane tank, a mixed gas tank and a combustion chamber, the air tank is connected with the mixed gas tank through a connecting pipeline, the gas outlet of the mixed gas tank is connected with the methane tank and the combustion chamber through two connecting pipelines respectively, the top of the combustion chamber is provided with a mixed gas inlet, and a blower is arranged outside the combustion chamber, the application simulates the operation state of the underground catalytic combustion heater, high-temperature tail gas released by catalytic combustion mixed gas is used for heating oil shale layers, so that the oil shale is pyrolyzed to obtain the purpose of exploiting oil and gas, the simulation reference result of the experimental prototype can be understood as the actual operation result, the application not only reduces the exploitation cost of the oil shale in-situ conversion exploitation, but also improves the oil and gas exploitation efficiency, reduces the exploitation cost and reduces the harm of the toxic tail gas generated by incomplete combustion to animals, plants and the environment caused by direct release of the toxic tail gas into the atmosphere.

Apparatus and methods for measuring the efficiency of a thermal catalytic combustion unit. An example method provides a thermal catalytic combustion unit, a drying unit fluidically connected to the thermal catalytic combustion unit and configured to be downstream of the thermal catalytic combustion unit, and a sensor fluidically connected to the thermal catalytic combustion unit and configured to be downstream of the thermal catalytic combustion unit. The method further includes flowing a formation fluid sample through the thermal catalytic combustion unit, flowing a formation fluid sample through the drying unit, and sensing the formation fluid sample with the sensor after the formation fluid sample has flowed through the thermal catalytic combustion unit. The sensing detects the presence of a hydrocarbon and / or carbon monoxide in the formation fluid sample.

The invention discloses a sebacic acid production wastewater treatment and recycling process which comprises the following steps: a heat pump evaporation system comprises an evaporator, a compressor, a circulating pump and a heating heat exchanger, sebacic acid production wastewater is efficiently desalted through the heat pump evaporation system, and obtained steam enters a catalytic combustion device for catalytic combustion reaction; the final effluent is reused for an evaporation process and a crude sebacic acid washing process in the production process. Low-level heat energy of the system is recovered through the heat pump technology, evaporation energy consumption is remarkably reduced, gas-phase oxidation removal of organic matter is achieved through catalytic combustion, and secondary pollution is avoided; meanwhile, closed-loop recycling of wastewater is achieved, fresh water consumption and wastewater discharge are greatly reduced, and the comprehensive advantages of being low in operation cost, high in treatment efficiency, high in environmental friendliness and the like are achieved.

The application provides an industrial tail gas carbon monoxide catalytic conversion device, and belongs to the technical field of industrial tail gas treatment.The device comprises a catalytic conversion tank, a plurality of layers of catalytic carriers are arranged in the catalytic conversion tank, the catalytic carriers have radial honeycomb channels and axial honeycomb channels, the inner walls of the radial honeycomb channels and the axial honeycomb channels are coated with a catalyst coating for catalytically converting carbon monoxide into carbon dioxide, a flow guide is connected to each layer of catalytic carriers, a flow guide channel is formed between the inner annular surface and the bottom surface of the catalytic carrier, the flow guide channel is communicated with the radial honeycomb channels and the axial honeycomb channels and forms a gas flow path of the catalytic carrier, the peripheral wall of the catalytic conversion tank is provided with a plurality of gas inlet rings, and the gas flow paths of the layers of catalytic carriers are sequentially connected in series from bottom to top through the gas inlet rings.The industrial tail gas carbon monoxide catalytic conversion device can avoid the high energy consumption problem of catalytic combustion treatment of carbon monoxide tail gas and reduce the cost of industrial tail gas treatment.

The invention belongs to the technical field of fuel cells, and particularly relates to a catalytic combustion reaction and heat exchange integrated device and an operation method. Comprising a catalytic combustion reaction cavity, a fuel cell stack, a combustion tail gas heat exchange cavity, a water preheating cavity, a stack heat exchange medium cavity and a plate-fin heat exchanger, the fuel cell stack is sequentially connected with the catalytic combustion reaction cavity and the combustion tail gas heat exchange cavity, and tail gas is subjected to catalytic combustion reaction through the catalytic combustion reaction cavity; the plate-fin heat exchanger is arranged in the catalytic combustion reaction cavity, the water preheating cavity is arranged in the combustion tail gas heat exchange cavity and is connected with the plate-fin heat exchanger through a feed liquid pipeline, and feed liquid in the plate-fin heat exchanger is secondarily preheated in the combustion tail gas heat exchange cavity; and the electric pile heat exchange medium cavity is arranged on the outer side of the combustion tail gas heat exchange cavity and is connected with the fuel cell electric pile. The catalytic combustion reaction and heat exchange are integrally designed, the structure is simple, the cost is low, the reforming hydrogen production tail gas can be effectively treated, and combustibles can be effectively removed.

The application belongs to the technical field of fuel cells, and particularly relates to a modular high-efficiency hydrogen production fuel processor and application. The processor comprises a combustion chamber module and a plurality of series or parallel reforming chamber modules; the reforming chamber module comprises a combustion tail gas chamber and a reforming cavity with a wave-shaped structure arranged in the combustion tail gas chamber; the combustion tail gas chamber is connected with the combustion chamber module, and combustion tail gas generated by catalytic combustion reaction of the combustion chamber module enters the combustion tail gas chamber to provide heat for the reforming cavity. The application has a highly compact structure, low manufacturing cost and high thermal efficiency, and simultaneously solves the problem of easy gas short circuit in the reforming chamber, is beneficial to the improvement of the volume specific power of the fuel cell system, and facilitates the enlargement of the equipment.

The invention provides a rotational flow combustion device capable of achieving low NOx emission, a combustion method and a volume flow calculation method.The rotational flow combustion device capable of achieving low NOx emission comprises a low-temperature cracking area, a rotational flow premixing cavity, a high-temperature catalysis area and a tail gas exhauster which are sequentially arranged in the airflow direction; the top of the low-temperature cracking area is connected with the bottom of the rotational flow premixing cavity, the top of the rotational flow premixing cavity is connected with the bottom of the high-temperature catalytic area, and the top of the high-temperature catalytic area is connected with the bottom of the tail gas discharger; the low-temperature cracking area is used for pre-cracking the input combustible ammonia-doped mixed gas; the rotational flow premixing cavity is used for generating rotational flow gas and generating a backflow area in the high-temperature catalytic area; the high-temperature catalysis area is used for catalyzing combustion flames in the flowing channel and on the wall surface; and the tail gas discharger is used for discharging the combusted tail gas. And by combining the catalytic pre-cracking and catalytic combustion technologies, the combustion effect is improved, and the emission of NOx is reduced.

The present application relates to a kind of methane catalytic combustion catalyst and its preparation method, comprising (1) TiO2 is ultrasonically dispersed in anhydrous ethanol, hydroxyl sulfopropyl betaine is added, and mixture is prepared;(2) the mixture of step (1) and active metal salt solution are mixed and reacted;(3) after reaction, the precipitate is separated, and TiO2@ABO3 core-shell catalyst is obtained after drying and calcination.The perovskite core-shell catalyst provided by the present application is used for the catalytic combustion of methane, T 90 ≤500 ℃, with the advantages of low-temperature catalytic activity, good stability, low cost and the like.

The application discloses a cerium-regulated potassium-manganese composite metal oxide catalyst with a hollow nanotube structure, which is a cerium-regulated potassium-manganese composite metal oxide catalyst with a hollow nanotube structure and is composed of a composite metal potassium-manganese, potassium-manganese-cerium and oxygen. The application applies a centrifugal spinning method to the preparation of a morphology of a hollow nanotube metal oxide catalyst and catalytic combustion of carbon smoke. In the preparation method, low-cost metal nitrate and metal acetate are selected as metal precursors, polyvinylpyrrolidone is used as a template agent, and a cerium-regulated potassium-manganese composite metal oxide catalyst with a hollow nanotube structure is obtained through dissolution-centrifugal spinning-drying-calcination. The preparation method can be applied to the preparation of various composite metal oxide catalysts and has the advantages of simple preparation process, strong practicability, high efficiency, low cost and easy realization of large-scale production.

A system for reducing the release of hydrocarbons intermittently or continuously emitted from a hydrocarbon source into the atmosphere includes a hydrocarbon supply conduit configured to receive the emitted hydrocarbons from the hydrocarbon source. In addition, the system includes an air supply conduit configured to receive air from an air source. Further, the system includes an aspirator fluidly coupled to the air supply conduit and the hydrocarbon supply conduit. The aspirator is configured to (i) receive air from the air supply conduit, (ii) receive the emitted hydrocarbons from the hydrocarbon supply conduit, and (iii) mix the air with the emitted hydrocarbons to form an air-hydrocarbon mixed stream. Still further, the system includes a mixing tee fluidly coupled to the air supply conduit, the hydrogen supply conduit, and the aspirator. The mixing tee is configured to (i) receive the air-hydrocarbon mixed stream from the aspirator, (ii) receive supplemental air from the air supply conduit, and (iii) mix the supplemental air and the air-hydrocarbon mixed stream to form an air-entrained hydrocarbon stream. The system also includes an air-entrained hydrocarbon conduit fluidly coupled to the mixing tee. Moreover, the system includes a catalytic converter fluidly coupled to the air-entrained hydrocarbon conduit and configured to receive the air-entrained hydrocarbon stream, and wherein the catalytic converter includes a catalyst configured to catalytically combust and oxidize the emitted hydrocarbons in the air-entrained hydrocarbon stream.

The utility model discloses a VOCs organic waste gas treatment device which comprises a carbon box, clamping seats are fixedly connected to the two sides of the inner side face of the carbon box, activated carbon adsorption plates are clamped in the clamping seats, and a conveying pipe is fixedly connected to the bottom of the inner side face of the carbon box. According to the VOCs organic waste gas treatment device, an activated carbon adsorption plate, a fresh air heat exchanger, a fan and a combustion furnace are arranged, the activated carbon adsorption plate adsorbs organic components in waste gas into micropores of activated carbon for concentration, filtered clean gas reaches the standard and is discharged, and fresh air is heated to a preset value through the fresh air heat exchanger and then enters a carbon box through a second air inlet pipe; organic waste gas subjected to desorption treatment is purged, meanwhile, VOCs organic waste gas is conveyed into a combustion furnace through a gas collecting pipe and a gas collecting hood through a draught fan, the VOCs organic waste gas is decomposed into carbon dioxide and water vapor after being subjected to catalytic combustion, and finally the VOCs organic waste gas is conveyed to a fresh air heat exchanger through a connecting pipe to be discharged after being subjected to heat exchange and cooling and reaching the standard, so that an activated carbon adsorption plate can be recycled; and the use cost is reduced.

The application discloses a kind of high-efficiency organic waste gas catalytic combustion device, including preheating mechanism, temperature rising mechanism and catalytic combustion mechanism, the preheating mechanism and temperature rising mechanism are arranged in the side of catalytic combustion mechanism, the catalytic combustion mechanism includes support shell, the inner wall of the side of support shell is provided with three-way pipe, and three-way pipe includes an inlet, two outlets, the inlet of three-way pipe is connected with preheating mechanism, and the two outlets of three-way pipe are respectively connected with third air pipe, one end of third air pipe is connected with second connecting pipe, and the inner wall of second connecting pipe is provided with air guide fan, air guide fan is arranged on support shell, the inlet of three-way pipe is provided with porous filter element, and the other two outlets of three-way pipe are respectively provided with second porous filter element, the high-efficiency organic waste gas catalytic combustion device disclosed in the application has the effect of accelerating the catalytic combustion efficiency of organic waste gas, making it more efficient, and further ensuring the purification degree of organic waste gas treatment.

The invention belongs to the technical field of fuel additives and clean energy. The invention provides a fuel oil additive, which is prepared from 40 to 60 parts of fatty acid ester, 10 to 20 parts of alcohol ether compounds, 1 to 3 parts of nanometer oxides, 2 to 4 parts of surfactants, 1 to 2 parts of oxidation stabilizers, 2 to 3 parts of sodium benzoate, 1 to 2 parts of 2, 6-dimethyl pyridine, 0.5 to 1 part of metal organic catalytic combustion improvers and 20 to 30 parts of solvent oil. The fuel additive can significantly improve the fuel combustion efficiency, reduce the fuel consumption, reduce the emission of CO, HC, NOx and soot, and improve the combustion stability and storage performance. The additive selects part of bio-based raw materials, has the characteristics of energy conservation, emission reduction, greenness and low carbon, is suitable for the field of combustion-supporting modification of gasoline, diesel oil and biofuel, and has good environmental benefits and application prospects.

The invention discloses an organic waste gas concentration catalytic purification system and method, and particularly relates to the field of organic waste gas treatment.The organic waste gas concentration catalytic purification system comprises a waste gas compression chamber, a gas feeding pipe and a catalytic combustion chamber, the gas feeding pipe communicates with one side of the waste gas compression chamber, the catalytic combustion chamber communicates with one end of the gas feeding pipe, and the inner wall of the waste gas compression chamber is rotationally connected with a zeolite rotating wheel; a noble metal catalyst is fixedly connected to the inner wall of the catalytic combustion chamber, a combustor is fixedly installed in the catalytic combustion chamber, a transmission rotating roller is fixedly connected to one side of the zeolite rotating wheel, a supporting frame is rotationally connected to the outer wall of the transmission rotating roller, and the supporting frame is fixedly connected to the inner wall of the air supply pipe. By arranging a rotating plate and a movable part, when organic waste gas is treated, a zeolite rotating wheel can drive the rotating plate to enable a movable column to move, finally hydrogen is discharged into a catalytic combustion chamber through an exhaust pipe, and the problem that certain potential safety hazards exist when a worker manually adds a reducing agent is solved.

The invention relates to a methanol steam reforming hydrogen production device and a quick starting method thereof, and belongs to the technical field of hydrogen energy preparation devices. The hydrogen production device comprises a methanol reformer, a tail gas heat exchanger, a methanol evaporator, a methanol feeding pump, a methanol aqueous solution pipeline, a reformed gas pipeline, an air pipeline and a tail gas pipeline, the methanol water solution pipeline comprises a first pipeline and a second pipeline; the methanol reformer comprises a methanol oxidizing chamber, a methanol vaporizing chamber and a methanol reforming chamber; the methanol reformer is connected with the first pipeline through a methanol feeding pump; the methanol reformer is respectively connected with an air pipeline and a reformed gas pipeline; the methanol reformer is sequentially connected with the tail gas heat exchanger and the methanol evaporator to form a secondary heat exchange structure; and the methanol evaporator is sequentially connected with the tail gas heat exchanger and the methanol reformer through a second pipeline for multi-stage heat recovery. A detachable hydrogen storage device is connected outside a methanol oxidation chamber of the hydrogen production device, and the hydrogen production device can be quickly started by utilizing hydrogen-air catalytic combustion during starting.

The utility model is suitable for steel structure product surface treatment technical field provides a kind of steel structure product paint spraying system, including conveying mechanism, spraying storehouse, baking varnish storehouse and waste gas treatment system;The conveying mechanism is sequentially penetrated the spraying storehouse and baking varnish storehouse to form continuous conveying path;Spraying device is provided in the spraying storehouse inside;Heating device for drying the steel structure product after spraying is provided in the baking varnish storehouse;The waste gas treatment system is connected in the exhaust end of spraying storehouse, and includes the dry filter unit, catalytic combustion equipment, adsorption purification unit, fan and high altitude exhaust pipe that are sequentially communicated.The dry filter unit is multistage filtration structure, including primary filter cotton or filter cartridge filter.The utility model has solved the problem that the air filtration and circulation system of existing paint spraying room are insufficient and VOCs emission is not up to standard.

This utility model discloses an organic waste gas catalytic combustion furnace, relating to the field of waste gas treatment technology. It includes a furnace body with an air inlet at the bottom and an air outlet at the top. A primary heating device and a compensating heating device are sequentially arranged within the furnace body along the gas flow direction. Catalyst layers are respectively arranged downstream of the primary and compensating heating devices on the furnace body. A flow equalizer is arranged on the furnace body upstream of the primary heating device, with the primary heating devices evenly distributed at the air outlet of the flow equalizer. This utility model improves the combustion rate and reduces treatment energy consumption.

This invention discloses a graphene oxide / carbon nanotube-based coal combustion catalyst, its preparation method, and its applications, belonging to the field of catalytic combustion technology for efficient coal utilization. First, graphene oxide is used as a carrier, and then carbon nanotubes and manganese oxide are grown on its surface in a one-step process using condensation and redox reactions, followed by co-firing with coal. The graphene oxide / carbon nanotube-based combustion catalyst prepared by this invention effectively improves combustion efficiency, reduces the ignition temperature of coal, and lowers the reaction activation energy, resulting in significant economic benefits and broad application prospects.

The utility model relates to the technical field of waste gas catalysis, and discloses an RCO organic waste gas catalytic combustion device, which is characterized in that a sleeve cover is sleeved outside one end of a catalytic furnace, a fixed ring is welded on the outer wall of one end of the catalytic furnace close to the sleeve cover, one end of the fixed ring far away from the sleeve cover is rotatably connected with a disc, and three bent chutes are uniformly arranged on the outer wall of the periphery of the disc; fasteners are connected to the inner walls of the three bent sliding grooves in a sliding mode, clamping blocks are installed at the bottom ends of the fasteners, and the three clamping blocks are located on the outer walls of the periphery of the sleeve cover respectively. Through the arrangement of the clamping blocks and the bent sliding grooves, the three fastening pieces are hinged to the center positioning ring through the movable rods to form a linkage mechanism, when the disc is rotated, the bent sliding grooves drive the three clamping blocks to synchronously contract towards the center of the sleeve cover, uniform annular pressure distribution is achieved, an activated carbon adsorption layer in the sleeve cover is conveniently replaced or a catalytic furnace is conveniently overhauled at regular intervals, and the working efficiency is improved. And meanwhile, long-term sealing performance is kept.

The utility model discloses a waste gas pollutant adsorption treatment system, and belongs to the field of waste gas treatment. Comprising a waste gas collecting cover, the upper end of the waste gas collecting cover communicates with a collecting pipeline, the lower portion of the right end of the collecting pipeline communicates with a catalytic combustion furnace, the right side of the catalytic combustion furnace communicates with a pretreatment assembly, a spraying assembly is arranged on the right side of the pretreatment assembly, and a water inlet pipe is arranged on the front side of the upper end of the spraying assembly. According to the present invention, before the waste gas is subjected to adsorption treatment, the waste gas enters the water treatment tank along the flow dividing pipe and the hollow pipe to contact with the water flow so as to strip the particulate matter from the waste gas, and when the particulate matter is in contact with the water, the stirring motor drives the water stirring rod to rotate so as to stir the internal water flow to produce the internal rotation, such that the waste gas is subjected to adsorption treatment; and particles in the waste gas are gathered towards the interior of the vortex, so that the particles can be rapidly stripped from the waste gas, the stripping efficiency of the particles is improved, and meanwhile, the loss of a filter element in a subsequent adsorption device is reduced.

The utility model provides a kind of CO catalytic combustion furnace slag removal device, it is related to CO catalytic combustion furnace technical field, including furnace body, the exhaust pipe is fixed in the furnace body bottom and penetrates, the upper cover is hinged in the furnace body top, the air inlet pipe is fixed in the upper cover top and penetrates, the protective cover is fixed in the furnace body outer wall one side middle part and penetrates, the micro motor is fixed in the protective cover side.This device is driven by micro motor, micro motor drives transmission rod rotation, and then drive sliding block to slide in moving sleeve rod inside, so that moving sleeve rod drives impact block to move reciprocating horizontally, by the intermittent impact of impact block first filter screen, so that first filter screen shakes, and some of the impurities that block the mesh hole are shaken off, second filter screen is located in the protrusion inside first filter screen, when there is impurity in the bottom of first filter screen, second filter screen can still filter, and the efficiency is less affected, so as to reduce the cleaning frequency of filter screen.

The utility model relates to a kind of tail gas catalytic combustion device for photovoltaic adhesive film production, belong to tail gas catalytic combustion technical field, including installation platform, the top of the installation platform is fixedly installed with combustion chamber, the top of the combustion chamber is fixedly installed with exhaust port, the top of the exhaust port is fixedly installed with communicating pipe.The tail gas catalytic combustion device for photovoltaic adhesive film production is set up circulating water tank in the bottom of installation platform, water in filter water tank is introduced into circulating water tank, adsorption water is filtered by precipitation, then the treated water is introduced into filter water tank again, so that the water in filter water tank maintains adsorption effect, solve the common tail gas catalytic combustion device for photovoltaic adhesive film production, the tail gas after combustion is introduced into the water in water tank, the impurities in the tail gas after combustion are adsorbed, then other filtering steps are carried out, however, the water in water tank is adsorbed too much after impurities, and the adsorption effect is reduced, and the problem of needing to replace adsorption water.