18 results about "Chlorine production" patented technology

This invention provides a method for preparing a platinum-ruthenium catalyst for chlorine production, comprising: mixing nitrosylruthenium nitrate, platinum nitrate solution, deionized water, and a dispersant; heating to reflux temperature to dissolve; continuing the reaction at reflux temperature for 1 hour after the system changes from brownish-red to brownish-black; filtering the system after cooling to room temperature; and mixing the platinum-ruthenium mixture, silica hydrosol, and silica powder. The mixture is extruded into cylindrical pieces with a diameter of 5 mm, dried at 100-120°C for 6 hours to a breakage length of approximately 3-5 mm, and calcined in air at 200-240°C for 12 hours to obtain the platinum-ruthenium catalyst. This method can prepare a platinum-ruthenium catalyst with low chlorine impurity content that easily leads to catalyst aging. Simultaneously, because the reaction system remains acidic, the occurrence of ruthenium hydrolysis side reactions is reduced, resulting in a platinum-ruthenium catalyst with high yield, high ruthenium dispersion, and high catalyst activity.

The invention discloses a zero-discharge device and process for double-layer liquid sealing, redundant chlorine capturing, siphon pure discharge and closed-loop electrolysis of metal sodium, and belongs to the technical field of metal sodium preparation. The device comprises a furnace body, an oxygen-isolating anti-explosion inert liquid seal layer, a chlorine capture liquid seal layer, a liquid metal sodium layer, a molten sodium chloride electrolysis layer, a siphon type pure sodium discharge structure and an automatic feeding control system, the double-layer liquid seal is adopted to realize oxygen isolation, explosion prevention and chlorine in-situ absorption, the chlorine absorption capacity is designed to be more than two times of the maximum chlorine yield, and no leakage is ensured; liquid sodium is driven by lifting the liquid level during feeding to trigger siphon discharge, only pure metal sodium is produced, entrainment is avoided, and the purity is high; reaction byproducts are converted into raw materials to be recycled, no waste gas, no waste residues and no waste liquid exist in the whole process, and the byproduct water vapor can be condensed into purified water to be utilized. The device is simple in structure, intrinsically safe, high in automation degree, environmentally friendly and suitable for continuous production of high-purity metal sodium.

The invention provides a desulfurization wastewater comprehensive treatment system and method based on electrical method cooperative treatment, and relates to the technical field of desulfurization wastewater treatment.The desulfurization wastewater comprehensive treatment system comprises a pretreatment unit and a multi-stage electric treatment unit, a water inlet of the pretreatment unit is suitable for being connected with a desulfurization wastewater source, and the pretreatment unit can conduct alkalization treatment on desulfurization wastewater; the multi-stage electric treatment unit comprises an electric flocculation reactor, an electrochemical hardness removal device, an electric adsorption device and an electrolytic chlorine production device which are connected in sequence, the electric flocculation reactor, the electrochemical hardness removal device, the electric adsorption device and the electrolytic chlorine production device are all suitable for being electrically connected with an external power supply, and a water inlet of the electric flocculation reactor is connected with a water outlet of the pretreatment unit; the water outlet of the electrolytic chlorine production device is suitable for being connected with an external circulating water system to sterilize the water body. According to the device and the method, a multi-stage electrical method technology with synergism of electric flocculation suspended matter removal, electrochemical softening hardness removal, electro-adsorption desalination and electrolytic sterilization is integrated, and efficient purification of the desulfurization wastewater can be realized.

The invention relates to the field of electronic-grade chlorine production, and particularly discloses an electronic-grade chlorine production and purification system and a production process thereof.The electronic-grade chlorine production and purification system comprises a raw material dehydration unit, a light component removal unit and a product refining unit, and the raw material dehydration unit comprises a first heat exchanger, a first condenser, a first reboiler and a first rectifying tower. Moisture and nitrogen trichloride in raw materials are removed through rectification operation of the first rectification tower, corrosion of wet chlorine to follow-up equipment is prevented, metal ion pollution is introduced, materials extracted from the tower top then enter the second rectification tower, and low-boiling-point impurities such as carbon dioxide are separated and removed through boiling point difference; liquid chlorine in the tower kettle of the second rectifying tower enters a third rectifying tower, high-boiling-point heavy components such as metal chlorides are further removed, a high-purity electronic-grade chlorine product is finally extracted from the tower top, heavy components discharged from the tower kettle of the third rectifying tower need to be regularly fed into waste liquid for treatment, and the whole process adopts a sequence of pre-dehydration, light component removal and heavy component removal; the work division is clear; and the equipment is effectively protected.

The invention belongs to the technical field of fouling prevention and control, and particularly relates to a low-power-consumption electrolysis anti-fouling device for marine unmanned equipment and an application method of the low-power-consumption electrolysis anti-fouling device. The main body structure of the device comprises a copper composite electrode, a chlorine-producing anode arranged on the periphery of the copper composite electrode and a titanium cathode arranged in the center of the chlorine-producing anode; the application method comprises the following steps: determining the size of a fouling protection space and a maintenance and replacement period, calculating the size of the copper composite electrode and the boundary dimension of the device, arranging the positions of one or more sets of devices according to requirements, connecting the device with the marine unmanned equipment, and carrying out secondary pollution protection on the marine unmanned equipment. Copper ions generated through electrolysis serve as a main antifouling agent, chlorine prepared through seawater electrolysis serves as an auxiliary antifouling agent, the copper ions and hypochlorite are generated through intermittent electrolysis, marine organisms are prevented and treated, through electrode parameter matching, the electrolysis current is effectively reduced, the service life of a copper composite electrode is prolonged, electrolysis power consumption is reduced, and the stable antifouling effect with low power consumption is guaranteed.

The present application relates to the technical field of post-treatment of titanium sponge production, in particular to a dust removal method and system for reducing chlorine content, the system comprising a gas collecting hood, a lateral air inlet, a multi-stage flow guide baffle, a heat dissipation fin, a forced cooling unit, a temperature sensor, a control system, a dust collecting hopper and a dust discharge valve; the method realizes preliminary separation of coarse particles by forming a cyclone through tangential air inlet, and the three-stage collaborative cooling system composed of the multi-stage flow guide baffle, the heat dissipation fin and the forced cooling unit stably controls the temperature of chlorine at 60-70 DEG C, so as to promote the full condensation of gaseous chlorides, and then realize gas-solid separation through gravity settling, and the collected dust is directly returned to the electrolytic cell for recycling. The present application has high heat exchange efficiency, the dust recovery rate is not less than 90%, the dust content of purified chlorine is not higher than 10 mg / m3, the maintenance frequency of subsequent equipment is greatly reduced, and the present application has energy saving and environmental protection and high adaptability, and is suitable for various electrolytic chlorine production scenes.

The invention relates to the technical field of air electrodes, in particular to a metal-loaded super-hydrophobic air electrode for chlorine production reaction and a preparation method thereof.The metal-loaded super-hydrophobic air electrode for chlorine production reaction comprises a porous composite matrix composed of a three-dimensional porous ceramic framework and an MXene nanosheet conductive network attached to pore channels and the surface of the three-dimensional porous ceramic framework; the gradient functionalized super-hydrophobic layer covers the surface of the porous composite matrix and is formed by compounding polytetrafluoroethylene and a fluorine-containing polymer formed by in-situ polymerization of a fluorine-containing acrylate monomer; the metal catalyst layer is directly loaded on the surface of the gradient functionalized super-hydrophobic layer. According to the application, an MXene two-dimensional conductive network is constructed in situ on a ceramic skeleton, a composite functional layer with gradient change of components and wettability is constructed, strong metal-carrier interaction is formed by using MXene and noble metal, and performance improvement is realized from multiple aspects of charge transfer, three-phase interface mass transfer, catalytic activity and selectivity, structural corrosion resistance and durability and the like.

The present application is suitable for chlorine production technical field, provide a kind of liquid chlorine gasification process, comprising the following steps: step one: liquid chlorine steel bottle in liquid chlorine bottle storehouse is connected into distillation column for distillation separation by liquid chlorine distribution platform;Step two: gaseous material from the top of distillation column enters condenser, and the liquid outlet of condenser is connected with chlorine gasifier by liquid chlorine pipeline;Step three: liquid chlorine enters the inner tube of chlorine gasifier, and is heated by 80-83 DEG C medium, and liquid chlorine is gasified by heat absorption;Step four: after drying and impurity removal, chlorine is sent to chlorine buffer tank by chlorine turbine compressor, and after the stable pressure of chlorine in chlorine buffer tank, it is sent to each chlorine point by chlorine pipe network.The distillation column and chlorine dryer can remove nitrogen trichloride, metal chloride and non-metallic chloride, thereby improving the purity of chlorine, and avoiding the influence on bromine extraction;The establishment of accident chlorine absorption device can handle leaked chlorine in time, and guarantee the safety of chlorine use.

The invention discloses an intelligent electrolytic chlorine production and multi-element efficient absorption system, and relates to the technical field of electrolytic chlorine production processes. Comprising a domestic water input module, a water softening module, a water washing module, a salt dissolving module, an electrolysis module, an anode circulation module, a cathode circulation module, a dechlorination module, an absorption module, an alkali liquor circulation output module and a product storage module, all the modules form an interconnected and intercommunicated material conveying network through pipelines and control valves, material conveying automation is controlled by an electric control operation table, and a continuous closed-loop production process is formed. The double water softeners supply water collaboratively, and the alkali dissolving tanks operate collaboratively, so that stable starting and continuous operation of the system can be guaranteed; dechlorination and alkali liquor adjustment are linked, and a whole-process material closed loop is combined, so that the resource utilization rate is remarkably increased, and water resources and raw materials are saved; the concentration of alkali liquor and the flow direction of materials are accurately controlled, the stability of electrolytic reaction is improved, the purity of sodium hypochlorite products is guaranteed, meanwhile, chlorine leakage is avoided, and high efficiency, economical efficiency and environment friendliness are achieved.

The invention belongs to the field of artificial intelligence, particularly relates to an energy consumption prediction and dynamic optimization method for a chlorine production system of a power plant, and aims to solve the problems of high energy consumption, lagging regulation and control and lack of adaptive ability of a traditional chlorine production system. According to the method, a multi-source heterogeneous data fusion layer is constructed to collect electrolysis key parameters in real time, a dynamic energy consumption prediction model is established based on a gated circulation unit neural network, and unit chlorine production energy consumption in the future 30 minutes is output; and then a multi-objective optimization engine is constructed, energy consumption minimization and flow stability maximization are taken as objectives, optimal control parameters are solved by adopting an improved particle swarm algorithm, and current, saline water and cooling coordinated regulation and control are executed through closed-loop feedback. According to the method, the prediction error is smaller than 3%, the unit energy consumption is reduced by 8%-12%, the chlorine production fluctuation is controlled within + / -2%, equipment health perception and working condition self-adaptive weight distribution are supported, the energy efficiency, the stability and the intelligent level of the system are remarkably improved, and the 7 * 24-hour high-reliability operation requirement of the power plant is met.

The utility model discloses a quality-divided treatment and recycling system for ion exchange resin regenerated wastewater. The quality-divided treatment and recycling system comprises a raw water pretreatment system, an ion exchanger and regeneration system, a nanofiltration device and an electrolytic wastewater chlorine production system which are communicated in sequence, an on-line chloride ion meter, an on-line sodium ion meter, matched pipelines and an electric actuator are additionally arranged on a wastewater outlet pipeline, different types of wastewater are collected according to high-chloride-ion-concentration wastewater, high-sodium-ion-concentration wastewater and low-concentration wastewater, and the low-concentration wastewater is recycled to a pre-raw water pool; the ion proportion of high-chloride-ion-concentration wastewater and high-sodium-ion-concentration wastewater is optimized through the mixing ratio, the purity of a regenerated solution is improved through a nanofiltration device, and the electrolytic chlorine production efficiency is improved. According to the utility model, the acid-base regeneration wastewater which is difficult to treat is collected according to quality and is recycled according to classes, so that the resource utilization of the wastewater is realized.

The invention relates to the technical field of chlorine purification, and discloses a system and method for producing electronic-grade chlorine and co-producing chemical-grade chlorine, the system comprises a dehydrating tower, a light component removal tower and a refining tower, the dehydrating tower is used for dehydrating and separating raw material flow, dehydrated raw materials are extracted from the tower top, and tower bottoms are led out from the tower bottom; a third heat exchanger for carrying out heat exchange on the dehydrated raw material is arranged between the top of the dehydrating tower and the feeding hole of the light component removing tower, and the dehydrated raw material is subjected to heat exchange to obtain a liquid material. According to the invention, the environment-friendly target of no three-waste emission is realized, and the recovered mother liquor can be recycled to an original chlorine production system.

The invention discloses a preparation method of a Fe-doped RuO2-TiO2 solid solution electrode. The preparation method comprises the following steps: (S1100) preparing a precursor solution, wherein the atom molar ratio of the sum of Ru atoms and Fe atoms to Ti atoms in the precursor solution is 3: 7; the invention also provides the Fe-doped RuO2-TiO2 solid solution electrode and an application of the Fe-doped RuO2-TiO2 solid solution electrode in preparation of active chlorine in an acidic aqueous solution. The electrode provided by the invention shows excellent active chlorine generation performance in an acidic aqueous solution environment, has relatively high selectivity and current stability, and is obviously improved in performance compared with an undoped electrode. The invention has the advantages of high catalytic efficiency, good structural stability, low material cost and the like, and is suitable for chlorine production by electrolysis of acidic aqueous solution and related industrial application scenarios.

A salt solution desalination power generation system for ion separation driven by mechanical energy belongs to the technical field of electrochemistry and comprises a main chamber, a cation exchange chamber, an anion exchange chamber, a piston and an energy accumulator, a main water inlet and a main water outlet are respectively arranged on the bottom surface of the main chamber, a reverse osmosis membrane is arranged at the main water outlet, and the piston is arranged at the top of the main chamber. The cation exchange chamber and the anion exchange chamber are oppositely arranged on the left side and the right side of the main chamber, the lower parts of the anion exchange chamber and the cation exchange chamber are communicated with the lower part of the main chamber, and anion exchange membranes and cation exchange membranes are respectively arranged at the communicated parts; the use method comprises the following steps: driving water molecules in a salt solution to be discharged through the reverse osmosis membrane by using pressure, and synchronously driving charged ions in the salt solution to pass through the anion exchange membrane and the cation exchange membrane, so that anions and cations respectively enter different chambers to generate potential difference. The system can realize the functions of power generation, salt solution desalination, hydrogen production, oxygen or chlorine production, acid production, alkali production and the like, and is an integrated system capable of synchronously realizing multiple functions.

The present application belongs to the technical field of nuclear power plant electrolytic chlorine water source switching system, and particularly relates to a kind of seafront nuclear power plant electrolytic chlorine water source switching system, including flow control module and booster pump, the water source used by electrolytic chlorine system is preferentially seawater desalination system reverse osmosis concentrated water, and the insufficient part is supplemented by seawater. Since the content of suspended solids in the reverse osmosis concentrated water of the seawater desalination system is very low, it can meet the water inlet requirement of the electrolytic cell in the chlorine production system without filtration, effectively preventing the mechanical erosion of sand particles in seawater on the electrode of the electrolytic cell. After the reverse osmosis concentrated water of the conventional nuclear power plant seawater desalination system is reused as the water source of the electrolytic chlorine production system, the seawater intake can be saved, the water discharge can be reduced, and the system does not need to add a seawater pool and a seawater pump. The system can automatically switch and adjust the flow of the two water sources, has the characteristics of reducing the occupied area, saving the construction cost, simple system structure, no need for buffering and secondary boosting, and easy operation.

A chemical generator for pool or spa applications includes an electrolytic cell comprised of a parallel set of conductive sheets submerged in an electrolyte. A set of path barriers is positioned to obstruct current paths along the edges between sheets, thereby increasing cell efficiency and protecting edge regions from high current densities. The invention covers both planar configurations and cylindrical implementations, including edge- coupled barriers that extend along the sheet perimeters or between a core and sleeve in cylindrical form. Methods for installing and operating the cell, including chlorine production within a chlorinator system, are also disclosed.

The utility model discloses a wet chlorine gas analysis device and system, and belongs to the technical field of wet chlorine gas analysis. Comprising a gas-liquid separator, a vortex cooling dehumidifier connected with the gas-liquid separator, a fine filter connected with the vortex cooling dehumidifier, a membrane filter connected with the fine filter, a chromatographic instrument connected with the membrane filter, and a carrier gas semi-automatic switching assembly connected with the chromatographic instrument, wherein the fine filter and the membrane filter are respectively connected with a three-way switching valve; according to the wet chlorine gas analysis device and system, switching of multiple electrolytic cells is achieved, the safety, quality and efficiency of chlorine gas production are improved, the cost is reduced, and the environment and staff health are protected; potential safety hazards can be found in time by monitoring the content of impurities in chlorine on line, so that preventive measures are taken, and safety production accidents are avoided; and an enterprise can better control pollutant emission, and the risk that workers make contact with harmful gas is reduced.

The invention relates to the technical field of chemical production control, and discloses a digital twinning-based electrolytic chlorine production full-flow intelligent regulation and control system, which comprises a data processing module, a digital twinning module, a digital twinning module and a control module, the digital twinning module is used for constructing a digital twinning model and calculating to obtain the current efficiency, the actual product concentration, the predicted value of the outlet temperature of the electrolytic cell, the electrode state and the salinity; the state estimation module is used for constructing and updating a state vector; the prediction control module is used for constructing a target function and solving the target function to obtain a control instruction; the safety monitoring module is used for executing safety protection measures; by constructing the digital twinborn model and combining a multivariable predictive control algorithm, accurate and stable control over the sodium hypochlorite yield and concentration under the fluctuation condition of multiple parameters such as seawater salinity, temperature and pH is achieved, the control precision is improved, the fluctuation range of the product concentration is narrowed, and the problem that the product quality is affected by seawater quality changes is effectively solved.