74 results about "Oxide sulfur" patented technology

In some embodiments, the present disclosure relates to a system. The system includes a substrate and a fluid trapping material formed on one or more surfaces of the substrate. The fluid capture material includes a sorbent material incorporating one or more fluids including water, carbon dioxide, sulfur oxides, alcohols, or a combination thereof. The fluid capture material also includes one or more binder materials, wherein the binder materials are optionally at least partially cross-linked. The fluid capture material includes at least one aperture.

A system is described that enables the purification of COx, SOx, NOx, dioxin and furan, and H2S gases using wet and dry filters in a single chimney, comprising: a nozzle system (2) that sprays a mixture consisting of water, micronized zeolite, ammonia, and boron mineral in fine droplets to perform the first purification of SOx (sulfur oxides), NOx (nitrogen oxides), and COx (carbon oxides) gases entering the chimney (1) from the combustion gas, a zeolite-based dry filter (3) that purifies the dioxin and furan components in the flue gas (B) rising after the first purification, a first continuous measurement system (4) that measures the values of the combustion gas at the entry point to the chimney (1), a second continuous measurement system (5) that measures the values of the combustion gas after the dry filter (3), an Al-supported processor (6) that adjusts the amount of the mixture to be sprayed from the nozzle system (2) based on the comparison of the first continuous measurement system (4) and the second continuous measurement system (5).

The invention relates to a filter unit for removing gaseous compounds (nitrogen oxides, sulfur oxides, volatile organic compounds, carbon monoxide and the like) and bacteria and viruses from interior air, in particular interior air of a motor vehicle, the invention also relates to a method for removing gaseous harmful substances and bacteria and viruses from interior air, in particular interior air of a motor vehicle.

This invention belongs to the field of mineral processing technology, specifically relating to a selective sulfidation roasting-flotation separation method for a smithsonite-calcite mixed ore. The method first involves crushing and grinding the smithsonite, calcite, and sulfiding agent, then mixing them in a certain proportion and subjecting them to sulfidation roasting, preferentially causing the smithsonite to undergo sulfidation. After cooling the roasted product in an inert atmosphere, flotation separation is performed using xanthate as a collector to obtain zinc concentrate. By controlling the atmospheric conditions during the sulfidation roasting process, the sulfidation reaction efficiency of the smithsonite can be improved, and the generation of sulfur oxide gases during roasting can be reduced. When using this method to process the smithsonite-calcite mixed ore, effective recovery of the smithsonite can be achieved, with a flotation recovery rate exceeding 88%. This invention features a simple process flow and easily controllable operating conditions, providing a new technical approach for the efficient utilization of smithsonite resources.

The invention belongs to the technical field of flue gas sulfur oxide removal, and particularly relates to a flue gas desulfurization gypsum chloride ion concentration soft measurement method and system. The method comprises the following steps: S1, selecting characteristic variable data; s2, extracting online continuous monitoring data of chloride ion concentration in the desulfurization slurry; s3, determining a target variable; s4, screening out a final characteristic variable group; s5, performing data preprocessing on the final feature variable group; s6, establishing a training sample group based on a recurrent neural network model predictor; s7, training a preliminary recurrent neural network model; s8, obtaining a final prediction model; and S9, inputting a target characteristic variable group of the flue gas desulfurization gypsum to be measured into the trained recurrent neural network model to obtain the chloride ion concentration of the flue gas desulfurization gypsum to be measured. According to the method, the consumption of gypsum flushing water and the consumption of desulfurization wastewater treatment are reduced while the content of chloride ions in the desulfurization gypsum is ensured to reach the standard.

The invention relates to the field of oxidative desulfurization of oil and sulfur-containing liquid hydrocarbon fuels (including diesel fuel) and can be used to reduce harmful emissions and exhausts (in the form of sulphur oxide and carbon monoxide - SO2 and CO) of oil refineries, as well as various industrial enterprises (including energy), facilities and engines using hydrocarbon fuels. Method of oxidative desulfurization of oil and liquid hydrocarbon fuel and reducing harmful emissions of sulfur oxides and carbon provides a process of oxidation in tanks or pipelines by ozone (O3) or ozone-containing gases, in which sulfur oxides (SO2 and SO), without releasing them into the atmosphere, mix in a closed vessel or pipeline with carbon monoxide (CO) and by means of chemical reactions of sulfur monoxide decomposition (2SO↑ → SO2↑+S↓) and sulfur recovery (SO2↑ + 2CO↑ → S↓ + 2CO2↑) elemental sulfur (S) is extracted from oil or liquid hydrocarbon fuel and carbon monoxide (CO) is converted into its dioxide (CO2). The oxidation, also decomposition and recovery reactions are carried out one-step or sequentially, in the presence of oxidation-recovery group catalysts corresponding to these reactions, such as tert-Butyl hydroperoxide (C₄H₁₀O₂). Ozonized atmospheric air is used as ozone-containing gas.

The invention relates to a preparation method of a full-coal-gangue-based geopolymer, and belongs to the technical field of solid waste resource utilization. The method comprises the following steps: S1, mixing gangue ash with coal gangue raw ore powder to obtain a mixed solid; s2, adding alkali-activated liquid into the mixed solid, stirring and mixing to form slurry, molding the slurry, and curing to obtain a geopolymer; wherein the alkali-activated liquid is prepared from water glass, sodium hydroxide and water, the modulus of the alkali-activated liquid is 1-1.2, and the alkali-binder ratio of the alkali-activated liquid is 0.15-0.25. According to the method, the gangue raw ore is directly doped into the calcined gangue ash, so that the use amount of the gangue ash is greatly reduced, the process energy consumption is remarkably reduced, the emission of pollutants such as greenhouse gases, sulfur oxides and nitrogen oxides is reduced, and the coagulation time of the geopolymer is prolonged; the problems of high production cost and serious pollution of the existing gangue-based geopolymer are solved.

The present invention relates to a plant and method for the purification of fumes from industrial discharges and / or for the recovery and reconversion of sulfur oxides and / or nitrogen oxides and / or carbon dioxide contained in said fumes. Said method comprises the passage into one or more aqueous solutions, where said aqueous solutions are selected from the group comprising: —solution with an acid pH, between 0.5-1; —solution at a pH between 3 and 5, at about pH 4; —Ca(OH)2 or CaCl2 or calcium acetate solution; —solution at a pH between 8 and 9.

The invention belongs to the technical field of metal materials, and particularly relates to rare earth-antimony synergistic alloying corrosion-resistant steel special for photovoltaic and a preparation method of the corrosion-resistant steel. The corrosion-resistant steel special for photovoltaic is prepared from, by weight, 0.04%-0.08% of C, 0.20%-0.50% of Si, 0.80%-1.50% of Mn, smaller than or equal to 0.015% of P, smaller than or equal to 0.003% of S, 1.50%-3.00% of Cr, 0.20%-0.50% of Mo, 0.10%-0.40% of Ni, 0.010%-0.030% of RE, 0.05%-0.20% of Sb, 0.02%-0.05% of Als, smaller than or equal to 0.0050% of N and the balance Fe and inevitable impurities. Wherein RE / S satisfies 3.5 < = RE / S < = 5.0, and Sb / Cr satisfies 0.03 < = Sb / Cr < = 0.08; and through a two-stage controlled rolling and controlled cooling process, a core-shell structure with rare earth sulfur oxide as a core and an antimony atom enrichment layer as a shell is formed on the ferrite grain boundary. By the adoption of the technical scheme, the grain boundary electrochemical stability can be improved, pitting corrosion resistance and intergranular corrosion resistance are remarkably enhanced, and meanwhile the excellent comprehensive performance of high strength and high toughness is obtained.

The invention discloses a circulating spouted bed sintering flue gas multi-pollutant integrated removal system, and belongs to the technical field of industrial flue gas treatment. In the system, a tubular heat exchanger is connected with a bottom air inlet of a hearth through an air pipe; a hopper and a natural gas burner are arranged at the side part of the hearth, and a solid bed material with the particle size of 70-150 microns is filled in the hearth; an upper end outlet of the hearth is connected with an inlet of the cyclone separator, a plurality of ammonia spraying nozzles are distributed at the inlet of the cyclone separator, and a lower outlet of the cyclone separator is connected with the bottom of the hearth through a material returning pipe; an upper end outlet of the cyclone separator is connected with the tubular heat exchanger through a flue gas pipe; the tubular heat exchanger is connected with the bag-type dust collector; and the induced draft fan is connected with an outlet of the bag-type dust collector. According to the invention, various pollutants such as dioxin, carbon monoxide, sulfur oxide, nitrogen oxide and solid particle dust in the sintering flue gas can be integrally removed, the removal efficiency is high, the carbon emission and pollution are obviously reduced, and the whole system is compact and simple in structure.

The invention discloses a flue gas treatment system and a ship. The flue gas treatment system comprises a storage device, a sulfur-carbon absorption device and a carbon desorption device. The storage device comprises a barren liquor part and a rich liquor part. The barren liquor part is used for storing and absorbing barren liquor, and the rich liquor part is used for storing and absorbing rich liquor. The sulfur-carbon absorption device comprises a desulfurization section, a decarbonization section and an isolation assembly. The desulfurization section is used for receiving the flue gas and seawater, and discharging the seawater to the outside after sulfur oxides in the flue gas are removed from the seawater. The decarburization section is arranged above the desulfurization section, is communicated with the storage device, and is used for receiving the flue gas and the absorption barren solution from the desulfurization section, enabling the absorption barren solution to absorb carbon dioxide to form an absorption rich solution, and conveying the absorption rich solution back to the rich solution part. The isolation assembly is arranged between the desulfurization section and the decarbonization section, allows flue gas to flow from bottom to top and prevents liquid from flowing from the decarbonization section to the desulfurization section. The carbon desorption device comprises a desorption section and a reboiling section, the desorption section is communicated with the rich solution part, and the carbon desorption device is used for receiving and heating the absorption rich solution, so that the absorption rich solution is regenerated to form an absorption barren solution.

The present invention provides a catalyst with improved toxicity resistance to ammonium-based sulfur oxides such as acidic ammonium sulfate, and a denitrification apparatus equipped with this catalyst. [Solution] The catalyst of this disclosure is a catalyst containing vanadium and manganese, wherein the mass ratio of manganese oxide converted to dimanganese trioxide to vanadium oxide converted to divanadium pentoxide is 0.179 to 1.52.

The invention relates to the technical field of thermal power plant operation and maintenance supervision, and discloses a thermal power plant point-to-point operation and maintenance supervision system and method based on big data. The thermal power plant particulate matters, sulfur oxides and nitrogen oxides are processed on the basis of the standard exceeding discharge amount, processing mode information and processing equipment parameter information of the thermal power plant particulate matters, sulfur oxides and nitrogen oxides and the processing equipment regulation and control parameter information of the thermal power plant particulate matters, sulfur oxides and nitrogen oxides stored on the basis of big data; the regulation and control parameters of the nitrogen oxide treatment equipment are accurately matched, so that the operation parameters of the thermal power plant particulate matter, sulfur oxide and nitrogen oxide treatment equipment are scientifically matched on the basis of the treatment working condition types of the thermal power plant particulate matter, sulfur oxide and nitrogen oxide, and the pollutant discharge operation of the thermal power plant is intelligently monitored in a point-to-point classified manner on the basis of the pollutant types; and the refinement and applicability of thermal power plant operation and maintenance supervision are improved.

The invention discloses a power plant flue gas desulfurization and denitrification agent and application thereof. The power plant flue gas desulfurization and denitrification agent comprises an oxidizing agent, a reducing agent, a desulfurizing agent and an additive, the oxidizing agent is used for oxidizing NO in NOx into NO2, the reducing agent is used for reducing NO2 into N2 to be discharged, the desulfurizing agent is used for absorbing sulfur oxides, and the mass concentration of the additive is 3%-8%. The desulfurization and denitrification agent provided by the invention can efficiently remove nitrogen oxides and sulfur oxides in flue gas, and the addition of the additive improves the solubility of the desulfurization and denitrification agent.

A method of calcining a raw clay material for use as a supplementary cementitious material, comprising: providing a raw clay material comprising sulfur compounds, providing a waste material comprising hydrated cement paste, calcining the raw clay material to obtain a calcined material comprising calcined clay, wherein the sulfur compounds present in the raw clay material are oxidized to sulfur oxides, contacting the sulfur oxides with the waste material, and allowing the sulfur oxides to chemically react with or be adsorbed in the waste material.

A system and method for removing sulfur compounds from gas, including discharging tail gas having sulfur compounds from a sulfur recovery unit (SRU) to a non-thermal plasma (NTP) catalytic unit including an NTP reactor, providing oxidant to the NTP reactor and placing the oxidant in an NTP state in the NTP reactor to give an oxidative reactive species formed from the oxidant, converting (oxidizing) the sulfur compounds with the oxidative reactive species and catalyst in the NTP catalytic unit into sulfur oxides (SOx) to discharge the tail gas as treated having the formed SOx without the sulfur compounds that were converted. The SOx is absorbed into water in a quench tower to give the tail gas beneficially having only small amounts (e.g., less than 200 ppmv) of sulfur compounds. SOx may be degassed from water discharged from the quench tower and sent to the SRU furnace.

The present invention provides, with high production efficiency, an oxysulfide solid electrolyte containing a lithium atom, a phosphorus atom, a sulfur atom, and an oxygen atom. The present invention provides: a method for producing an oxysulfide solid electrolyte, the method including mixing a raw material-containing substance containing a lithium atom, a sulfur atom, a phosphorus atom, and an oxygen atom with a complexing agent containing a compound having at least one atom selected from a nitrogen atom and an oxygen atom; an oxysulfide solid electrolyte precursor configured from a lithium atom, a sulfur atom, a phosphorus atom, and an oxygen atom, and a complexing agent containing a compound having at least one atom selected from a nitrogen atom and an oxygen atom; and an oxysulfide solid electrolyte.

In some embodiments, the present disclosure relates to methods of functionalizing a fluid trapping material with at least one functionalizing ligand comprising an amine group. In some embodiments, the present disclosure relates to a system comprising a substrate and a fluid trapping material formed on one or more surfaces of the substrate. The fluid capture material includes a sorbent material incorporating one or more fluids including water, carbon dioxide, sulfur oxides, alcohols, or a combination thereof. The fluid capture material also includes one or more binder materials, wherein the binder materials are optionally at least partially cross-linked. The fluid capture material optionally includes at least one aperture. The fluid capture material is functionalized with at least one functionalization ligand comprising an amine group.

The invention discloses an environment-friendly cremation system based on methanol hydrogen production and a combustion control method, the environment-friendly cremation system comprises a combustion furnace, a methanol reforming hydrogen production device and a thermal cycle device, and a combustor is arranged in the combustion furnace; the methanol reforming hydrogen production device comprises a mixing tank, a feeding pump, a vaporizing chamber and a reforming reactor, the reforming reactor is filled with a catalyst, a feeding port of the feeding pump is connected with the mixing tank through a pipeline, a discharging port of the feeding pump is connected with the vaporizing chamber through a pipeline, the vaporizing chamber is connected with the reforming reactor through a pipeline, and the reforming reactor is connected with the combustor through a pipeline. Compared with the prior art, traditional fossil fuels such as diesel oil and natural gas are fundamentally abandoned, hydrogen serves as the main fuel, zero emission of sulfur oxides (SOx) and particulate matters (PM) in the combustion process is achieved, the source emission of carbon dioxide (CO) is greatly reduced, and the environmental protection advantage is extremely outstanding.

A sulfur oxide adsorption component contains manganese oxide, the crystal structure of the manganese oxide being tetragonal and / or hexagonal.

This invention relates to the field of environmental protection technology and discloses a flue gas treatment system that solves the technical problem that after denitrification, dust removal, and desulfurization, coal-fired flue gas still retains a certain amount of nitrogen oxides, sulfur oxides, and particulate matter, resulting in unsatisfactory carbon dioxide capture efficiency. The system includes a desulfurization device, a water washing tower, a carbon dioxide capture device, a first conveying pipeline, and a second conveying pipeline. The desulfurization device has an outlet, the water washing tower has a first inlet and a first outlet, and the carbon dioxide capture device has an inlet. The outlet of the desulfurization device is connected to the first inlet of the water washing tower via the first conveying pipeline; the first outlet of the water washing tower is connected to the inlet of the carbon dioxide capture device via the second conveying pipeline. The water washing tower is used to wash the flue gas entering from the first inlet of the water washing tower using an alkaline washing solution, and the washed flue gas is output through the first outlet of the water washing tower.

The goal is to improve the processing capacity of the flue gas treatment system. [Solution] The system comprises an exhaust gas passage through which exhaust gas flows, a desulfurization device provided in the exhaust gas passage to remove sulfur oxides contained in the exhaust gas, and a blower provided in the exhaust gas passage to blow the exhaust gas. The blower has a first blower and a second blower having a smaller capacity than the first blower, and the first blower and the second blower are arranged in parallel in the exhaust gas passage.

The utility model discloses a rotary jet desulfurizer for environmental protection equipment, which comprises a tower body, an inclined flue gas inlet fixedly communicated with the bottom side of the tower body, a flue gas outlet fixedly communicated with the top of the tower body, a middle shaft rotatably mounted in the tower body, a second water distribution pipe rotatably sleeved at the top end of the middle shaft, a shaft sleeve rotatably sleeved outside the middle shaft, and a second water distribution pipe rotatably sleeved outside the shaft sleeve. The top end of the shaft sleeve is rotationally sleeved with a first water distribution pipe located on the outer side of the second water distribution pipe, and the first water distribution pipe and the second water distribution pipe fixedly communicate with a plurality of atomization nozzles. According to the utility model, the two groups of water distribution pipes respectively rotate forwards and backwards to alternately cover the spraying area, so that the distribution uniformity of the spraying slurry on the whole flue gas flow section is effectively improved, and the sprayed slurry can more comprehensively cover the flue gas flow path due to the rotation action of the water distribution pipes, so that the spraying efficiency is improved. A larger contact area and longer reaction time between the slurry and the rising flue gas are ensured, and the removal effect on sulfur oxides in the flue gas is enhanced.

The present invention relates to a catalyst for a methane oxidation reaction and a methane oxidation method using same, and more particularly, to a catalyst for a methane oxidation reaction, the catalyst being capable of efficiently oxidizing methane for a long period of time even in the presence of a large amount of moisture and sulfur oxides, and a methane oxidation method using same.

The invention provides a ship tail gas desulfurization and decarburization integrated system and a desulfurization and decarburization method. The system comprises an absorption device, a desorption device and a separation device which are sequentially communicated, the absorption device is used for receiving ship tail gas, sulfur oxide and carbon dioxide in the ship tail gas are synchronously absorbed through absorption liquid, clean flue gas and rich liquid are discharged, and the absorption liquid is an amine solution; the desorption device is used for desorbing the rich solution and separating out a mixed gas of sulfur oxide and carbon dioxide and a barren solution; the separation device is used for mixing the sulfur oxides and the carbon dioxide separated by the desorption device with real seawater or simulated seawater to obtain seawater containing the sulfur oxides and the carbon dioxide, and the seawater containing the sulfur oxides can be directly discharged into the seawater. According to the scheme, synchronous absorption of SOx and CO2 is realized through a single absorption device, and the occupied area of equipment is reduced. SOx and CO2 in the ship tail gas are synchronously removed in a single absorption tower through amine absorption liquid, and cooperative treatment of pollutants is realized by adopting a desorption-seawater separation process.

The application discloses a preparation method of a coal-saving agent for denitration type cement firing and application thereof. The method comprises the following steps: (1) mixing aluminum powder, iron hydroxide powder, iron powder, magnesium powder, silica sol and polymer emulsion, stirring uniformly, drying and grinding to obtain a precursor powder; (2) placing the precursor powder in saturated limewater and reacting under heating conditions, separating out solid matters after completion, drying the solid matters, mixing the dried solid matters with phosphating liquid, standing and drying to obtain a denitration heat-aiding agent; and (3) taking a penetrating agent, a bulking agent, iron citrate and the denitration heat-aiding agent as an A component, and taking hydrogen peroxide as a B component. The A component and the B component are mixed uniformly before use to obtain the coal-saving agent. The coal-saving agent can promote the combustion of coal powder, improve the utilization rate, help to reduce the emission of polluting gases such as sulfur oxides and nitrogen oxides, and relieve the high energy consumption and high pollution problems faced by cement production enterprises.

The utility model relates to a kind of industrial silicon furnace high-temperature flue gas backflow technology high-efficiency heat utilization device, including waste heat boiler, waste heat boiler is connected with the flue gas outlet of ore-heating furnace by pipeline, for recycling the heat in flue gas;Mixed reaction device, the air inlet of mixed reaction device is connected with the gas outlet of waste heat boiler by pipeline, for mixing and reacting the component in flue gas;Dust collector, the air inlet of dust collector is connected with the gas outlet of waste heat boiler by pipeline, for removing particulate matter in flue gas;Absorption tower, the air inlet of absorption tower is connected with the gas outlet of dust collector by pipeline, for removing sulfur oxide and nitrogen oxide in flue gas;Discharge pipeline, discharge pipeline is connected with the gas outlet of absorption tower, for flue gas after processing is discharged to atmosphere, the utility model is optimized flue gas treatment by adjusting oxygen content and back retention flue gas, effectively inhibit the emission of harmful gas such as nitrogen dioxide, while back retention flue gas utilizes waste heat, improve energy efficiency and reduce energy consumption.

The application discloses a high-sulfur manganese free-cutting steel MnS inclusion modification preparation method and belongs to the technical field of steel metallurgy. The application forms fine and dispersed rare earth manganese sulfur oxides in the steel through a strict smelting process, and the rare earth manganese sulfur oxides serve as the nucleation core of MnS inclusions in the solidification process, so that the MnS is attached to the surface of the nucleation core to generate composite inclusions. The spheroidization of the rare earth inclusions can reduce the length-width ratio of the MnS inclusions, reduce the anisotropy of the steel, realize the modification of the inclusions and further improve the performance. Through LaMn alloy modification treatment, the morphology of the MnS in the high-sulfur manganese medium-carbon free-cutting steel is improved, the MnS is changed from a strip shape or a chain shape into a fine and uniformly distributed spherical shape or a near-spherical shape, stress concentration is effectively reduced, the Mn content in the steel is also improved, the steel is not infinitely intermingled with the matrix, and the mechanical performance and the cutting performance of the steel are significantly improved.

The present invention is applicable to the desulfurization and decarbonization of a process gas containing sulfur oxides and CO2, and belongs to the field of environmental protection. Ammonia is used as a desulfurizing and decarbonizing agent. The gas enters first a desulfurization apparatus for desulfurization, to produce an ammonium sulfate fertilizer. The desulfurized gas enters a decarbonization apparatus to remove carbon dioxide in the gas, and to produce an ammonium bicarbonate fertilizer. The decarbonized gas, that contains free ammonia, is washed with a desulfurization circulating fluid and then with water. The washing fluids are returned to the desulfurization tower for use as an absorbing agent for desulfurization. This technology integrates decarbonization and desulfurization technologies organically, and uses acidic desulfurization circulating fluid to wash ammonia, thereby achieving a high ammonia washing efficiency and solving the ammonia slip problem suffered by decarbonization processes. The process is simpler, the investment and operation costs are low, ammonium sulfate and ammonium bicarbonate fertilizers are co-produced, and there is no need to inject all of CO2 back to underground for sequestration. Rather, part of CO2 can be used to produce downstream products such as urea, soda ash, etc. The product mix can be flexibly adjusted, and by- product ammonia can be used, thereby realizing treating wastes with wastes and a circular economy. 20 24 21 65 02 30 A ug 2 02 4 2 0 2 4 2 1 6 5 0 2 3 0 2 0 2 4 A u g I N T E G R A T E D A M M O N I A - B A S E D D E S U L F U R I Z A T I O N A N D D E C A R B O N I Z A T I O N

The present invention relates to a non-aqueous electrolyte and a lithium secondary battery comprising same. The non-aqueous electrolyte comprises a lithium salt, an organic solvent, and an additive, the additive comprising a first additive and a second additive, wherein the first additive comprises a compound in which two cyclic sulfur oxide groups are bonded directly or via a linker, and the second additive comprises a nitrogen-containing heteroaromatic compound substituted with at least one of a vinyl group and a propargyl group.