1182results about "Process control/regulation" patented technology

The invention provides a flexible preparation system and method for sustainable aviation fuel, and the system comprises a green power supply module which is used for outputting fluctuating green electric energy; the process execution device is connected with the green power supply module and comprises five process modules, namely an air carbon capture module, a co-electrolysis module, a Fischer-Tropsch synthesis module, a hydrogen production module and a hydrogenation refining module; the data acquisition module is used for acquiring the temperature, the pressure, the liquid level, the raw material input flow and / or the product output flow of each process module in the process execution device; and the decision control module is used for predicting the future power supply condition of the green electricity based on the historical weather data of the green electricity location, adjusting the distribution of the power in each process module according to the future power supply condition, and adjusting the temperature, pressure and / or raw material input flow in each process module. According to the invention, the cost, the reliability, the operation and maintenance performance, the product quality and the green power utilization rate can be substantially improved at the same time, and the flexible and stable operation of the system under the green power condition is realized.

The invention relates to the technical field of temperature control, in particular to an enzyme reaction kettle self-adaptive temperature control system and method, and the system comprises a temperature detection module, a temperature control module, a heat conduction oil flow control module and an automatic regulation and control module; temperature data of a reaction kettle are collected in real time through a temperature detection module, a temperature control module adjusts parameters based on a PID algorithm and fuzzy logic to generate a control instruction, and a heat conduction oil flow control module adjusts flow by combining double-closed-loop cascade control with a feedforward compensation algorithm, so that thermal inertia lag is shortened. And the automatic regulation and control module generates optimized process parameters based on a reaction kinetic model and a genetic algorithm, and dynamically adjusts a temperature set value. The control method comprises the steps of temperature data acquisition, PID control instruction generation, conduction oil flow coordinated regulation, process parameter optimization and the like. The problems that in the prior art, temperature control precision is insufficient, conduction oil flow control is not accurate enough, and technological parameters cannot be automatically regulated and controlled are solved.

The invention relates to the technical field of guanidine nitrate preparation, in particular to a method for preparing guanidine nitrate by a continuous dynamic tubular reaction process, which comprises the following steps: uniformly mixing dicyandiamide, target ammonium nitrate and target ammonium carbonate according to a mass ratio of 1: (1-3): (1-0.5); conveying the uniformly mixed material to a feeding section in a dynamic tubular reactor through a first conveying screw rod for mixing treatment, wherein the dynamic tubular reactor further comprises a heating section, a reaction section and a cooling section; sequentially conveying the target mixed material to a heating section for heating melting treatment, a reaction section for synthesis reaction treatment and a cooling section for cooling forming treatment through a second conveying screw rod to obtain an initial product; conveying the initial product into a cooling and crushing device for cooling and slicing to obtain a target guanidine nitrate product. According to the method disclosed by the invention, the mass and heat transfer efficiency can be improved, the online quantity and liquid holdup of the material are reduced, meanwhile, the raw material ratio and the reaction path are optimized, and the safety and the product purity are improved.

The invention relates to the technical field of chemical automation control, and discloses an intelligent closed-loop control system for producing p-dichlorobenzene by a biomass method, which comprises a signal acquisition module, a residence time reconstruction module, a thermal coupling analysis module, a parameter self-adaptive scheduling module and an execution control module. The rheological characteristics of raw materials are monitored by collecting the current of a stirring motor, the liquid level is dynamically increased through a retention time reconstruction module to prolong the retention time of the materials, and a liquid level periodic migration strategy is introduced to prevent scaling of a gas-liquid interface; the thermal coupling analysis module and the parameter self-adaptive scheduling module are used for calculating thermal retardation post factors, temperature control parameters are corrected in real time, the upper limit of cooling output is limited, inner wall supercooling crystallization is prevented, and the problems that the conversion rate is reduced, the heat transfer efficiency is reduced and equipment is hung on the wall due to viscosity fluctuation of biomass raw materials are effectively solved. And the self-adaptive stable control of the reaction process is realized.

The invention discloses a reaction device based on dichlorobenzonitrile synthesis and a use method thereof, and relates to the field of reaction devices.According to the technical scheme, the reaction device comprises a reaction tank and a cover located at the top end of the reaction tank, a heating interlayer is arranged on the reaction tank, and a spiral conveying pipe surrounding a reaction cavity in the middle of the reaction tank is arranged in the heating interlayer; the heating medium is conveyed through the spiral conveying pipe, and the gap between the heating interlayer and the spiral conveying pipe is filled with the heat preservation material, so that the heating medium is conveyed around the reaction cavity in the heating interlayer through the spiral conveying pipe, and the spirally distributed conveying pipe can enable the heating medium to uniformly act on the outer wall of the reaction cavity; heat loss is reduced through the heat preservation material between the heating interlayer and the spiral conveying pipe, accurate control and uniform distribution of the reaction temperature are achieved, side reactions caused by local overheating are avoided, and therefore generation of polychlorinated impurities is reduced, and the purity of the dichlorobenzonitrile product is improved.

A preparation equipment and a process for a nylon salt solution. The preparation equipment includes a suspension preparation device, a first salt formation reactor and a second salt formation reactor. The suspension preparation device includes a feeding unit, a continuous feeding unit, a high-shear pump and a mixing reactor, the high-shear pump and the mixing reactor are cyclically connected with and in communication with each other through two connecting pipelines; the second salt formation reactor includes a second diamine feed pipe, a third diamine feed pipe, a circulation pipeline of the second salt formation reactor and an online near-infrared monitoring equipment located on the circulation pipeline of the second salt formation reactor.

The invention belongs to the technical field of alkane processing, and particularly relates to a process for preparing isopentene by dehydrogenation of isopentane, a catalyst and a tert-amyl alcohol preparation process. The process for preparing isopentene by dehydrogenation of isopentane comprises an isopentane dehydrogenation device and an isopentene separation device, in the isopentane dehydrogenation device, a dehydrogenation reactor is a fixed bed adiabatic reactor and is filled with a Pt-Sn-K / alumina type alkane dehydrogenation catalyst, the catalyst has hydromethanation performance under the CO2-containing dehydrogenation reaction condition, and the arrangement and operation of a dehydrogenation reactor group comprise a mode A, a mode B or a mode C; the isopentene separation device comprises a cooling separation system, a pressure swing adsorption separation system and an optional rectification system. The tert-amyl alcohol is further prepared from isoamylene under the conditions of a fixed bed hydration reactor, ethylene glycol monobutyl ether and other solvents, and the tert-amyl alcohol product is obtained through separation. The process is superior to the prior art on the whole, and has certain application prospects.

The invention relates to a method for generating a signal for adjusting a parameter of an ethylene oxide production process, comprising the steps of acquiring (100) process data of the ethylene oxide production process, predicting (200) a future value of the parameter from the process data, comparing (300) the future value with a predefined reference, and generating a signal for adjusting the parameter of the ethylene oxide production process. And generating (400) the signal for adjusting the parameter as a function of the result of the comparison.

The invention belongs to the field of wind power, and relates to a waste wind power blade pyrolysis system and method. The system comprises a pyrolysis device, a combustion device, a carbon removal device and a gas return pipe, wherein the internal space of the pyrolysis device can receive external third gas to pyrolyze the blades, output pyrolysis solids to the carbon removal device and output pyrolysis oil gas to the combustion device; the external space of the pyrolysis device heats the internal space by using the first gas, and outputs a second gas; the combustion device is used for receiving and combusting pyrolysis oil gas and air and outputting first gas to an external space; the carbon removal device is used for receiving the pyrolysis solid and the carbon removal gas, removing residual carbon of the pyrolysis solid and then outputting glass fibers to the outside; the gas return pipe is connected with the internal space, and part of the second gas serves as third gas to be fed into the internal space. The blades are heated in a radiation and convection mode, the amount of smoke fed into the pyrolysis device can be adjusted, the pyrolysis process is stable, fiber strength loss is avoided, and the energy utilization rate is increased.

The invention relates to a preparation method and a preparation device of isocyanate, and the preparation method comprises the following steps: carrying out cold reaction on a phosgene solution and an amine solution in a cold reactor to obtain an intermediate mixed solution; separating the intermediate mixed solution by adopting a cyclone, obtaining a carbamoyl chloride mixed solution from an underflow port of the cyclone, and obtaining an amine hydrochloride mixed solution from an overflow port of the cyclone; the carbamyl chloride mixed solution enters a first thermal reactor for thermal reaction to obtain a first reaction product, and the amine hydrochloride mixed solution enters a second thermal reactor for thermal reaction to obtain a second reaction product; mixing the first reaction product and the second reaction product in a staying reactor to obtain an isocyanate reaction solution; and carrying out post-treatment on the isocyanate reaction liquid to obtain the isocyanate. The method can reduce the generation amount of urea by-products, further inhibits the generation of other subsequent by-products, reduces the chromaticity of the product, and improves the quality of isocyanate.

The invention provides a feeding control method and device for an arsenic hydride reaction kettle, equipment and a storage medium, and belongs to the technical field of arsenic hydride reaction, and the method comprises the following steps: determining an initial feeding mode of raw materials at the initial reaction stage based on the volume of the reaction kettle and an expected reaction molar ratio; the raw materials comprise zinc arsenide and dilute sulphuric acid; the desired reaction molar ratio is the desired molar ratio between zinc arsenide and dilute sulphuric acid; in response to the situation that the pressure change rate in the reaction kettle is smaller than a preset change rate value, the initial feeding mode is switched into a constant-speed feeding mode of raw materials in the middle stage of reaction; in response to the condition that the generation rate of the arsenic hydride is lower than a preset generation rate value, switching the constant-speed feeding mode into a final feeding mode of raw materials at the end of the reaction; according to the arsenic hydride reaction kettle feeding control method and device, the equipment and the storage medium provided by the invention, the feeding opportunity and the feeding speed of the reaction kettle can be accurately grasped.

The invention provides a flexible switching production method and equipment for low cis-polybutadiene rubber (LCBR), solution polymerized styrene-butadiene rubber (SSBR) and hydroxyl-terminated liquid polybutadiene rubber (HTPB), the flexible switching production equipment comprises an initiator production device and a polymerization unit, and the flexible switching production method comprises the following steps: mixing cyclohexane and n-hexane according to a volume ratio of 6.5: 3.5-7: 3, adding an initiator, and stirring to obtain a mixture; forming a mixed solvent; the method comprises the following steps: adding a monomer, an active agent, an initiator and a mixed solvent into a polymerization kettle 31 of a polymerization unit, and carrying out polymerization reaction to obtain a low-cis-polybutadiene, solution polymerized styrene-butadiene or hydroxyl-terminated liquid polybutadiene rubber solution; a novel protection initiator tert-butyl dimethyl siloxy propyl sodium is designed, and hydroxyl-terminated liquid polybutadiene rubber with a controllable structure is prepared through anionic living polymerization. According to the process, shutdown for kettle cleaning is not needed, the low cis-polybutadiene, the solution polymerized styrene-butadiene and the hydroxyl-terminated liquid polybutadiene rubber can be produced on the same polymerization device in a flexible switching manner, and the overall production efficiency is improved.

The invention discloses a color consistency control method in a bamboo kitchen ware carbonization process, and belongs to the technical field of bamboo processing. The method comprises the following steps: acquiring a multi-dimensional spectral data vector of the surface of the bamboo kitchen ware; determining a multi-dimensional change rate vector of the spectral data; respectively generating a first candidate control signal and a second candidate control signal based on the spectral data and the change rate vector; determining a system dynamic state index based on the change rate vector; generating a dynamic weighting coefficient according to the dynamic state index of the system; and performing weighted fusion on the first candidate control signal and the second candidate control signal by using a dynamic weighting coefficient to generate a final heat regulation control signal. According to the invention, the method achieves the self-adaptive optimal control of all working conditions through the construction of a dual-mode decision fusion composite control system, guarantees the quick response in a dynamic stage, guarantees the smooth convergence in a steady-state stage, and fundamentally improves the thermal inertia problem of the system.

The invention relates to the technical field of chemical stirring, in particular to an automatic reagent stirring device for chemical experiments and a stirring method thereof. Comprising a reaction tank, a titration frame and a central control unit, a displaceable liquid storage titration assembly is arranged on the titration frame, a double-spectrum sensor is mounted on the titration frame, the titration device further comprises a liftable protective frame and a lifting frame, two sealing covers with an adjustable distance are mounted on the protective frame, an online monitoring system for monitoring chemical liquid reaction data is arranged between the two sealing covers, and the central control unit is connected with the lifting frame. Arc clamping plates are installed on the two sealing covers, a motion generation system is installed on the lifting frame, and a motion frame capable of vertically moving in a reciprocating mode and a forward stirring shaft capable of alternately rotating forwards and backwards are connected to the motion generation system. Through cooperative linkage of the liquid storage titration assembly, the double-spectrum sensor and the central control unit, the problem of low titration precision of a traditional artificial chemical titration mode is solved.

The invention relates to a multi-airflow alternating temperature calcining device for ultra-long nitride single crystal nanofibers. The multi-airflow alternating temperature calcining device comprises a reaction furnace; the mechanical vacuum pressure gauge and the exhaust port are arranged at the top of the reaction furnace; the reaction furnace chamber is arranged in the reaction furnace; the multi-reaction-zone graphite furnace body is arranged in the reaction furnace chamber and comprises a first low-temperature zone, a second high-temperature zone and a third low-temperature zone which are sequentially arranged from bottom to top and are not in contact with one another; the electromagnetic heating controller is arranged on the periphery of the multi-reaction-area graphite furnace body; the graphite boat is movably arranged in the multi-reaction-area graphite furnace body; the movable alumina crucible is arranged in the graphite boat; the graphite columns are arranged at the top and the bottom of the multi-reaction-zone graphite furnace body; the hydraulic cylinder is connected with the graphite column; and a control assembly. Compared with the prior art, the method has the advantages that the nitridation reaction process can be accurately controlled, the fiber quality and the crystal integrity can be improved, and independent and accurate temperature control can be realized.

The invention relates to the technical field of ardealite treatment technology, and discloses a method and a system for harmless treatment of ardealite, which are characterized in that fresh ardealite discharged by wet-process phosphoric acid filtration is re-pulped and then sequentially passes through a first-section reaction tank (added with fly ash and cement), a tank A of a second-section reaction tank, a tank B of the second-section reaction tank and a tank C of the second-section reaction tank for continuous reaction; performing solid-liquid separation to obtain harmless phosphogypsum; after the filtrate is settled, supernate is reused for repulping and lime milk preparation, and thick slurry is returned to the reaction tank; the reaction waste gas is washed with phosphoric acid acidic water, and washing liquid is reused for ore grinding; through multi-stage reaction and accurate pH control, the phosphogypsum stably reaches the class I solid waste standard, and the curing time is shortened from traditional several days to several hours; the system is deeply coupled with a front-end phosphoric acid system, and water balance and resource circulation of the system are realized by optimizing and filtering a washing water source and recycling steam condensate water; the process has the advantages of low cost, stable quality and flexible operation.

The system comprises a gradient catalytic reaction rectifying tower and a temperature control system, the rectifying tower is sequentially provided with a rectifying section, a reaction section and a stripping section from top to bottom, the reaction section is filled with an ion exchange resin solid catalyst, and the stripping section is filled with an ion exchange resin solid catalyst. The radiuses of the catalyst bag units are distributed in a gradient mode from small to large along the height of the tower, the catalyst bag units have the functions of catalytic reaction and mass transfer separation, the rectifying section and the stripping section are filled with structured packing or high-separation-capacity metal wire mesh packing, a gas-liquid separator is arranged at an outlet of the stripping section, and a temperature control system achieves segmented monitoring through a multi-point temperature sensor. The surface of the catalyst can be subjected to functional treatment to improve the decomposition resistance; the method comprises the following steps: feeding trichlorosilane generated by cold hydrogenation into the upper part of a reaction section from a feed port, carrying out disproportionation reaction at the gradient temperature of 20-100 DEG C and the pressure of 0.3-0.6 MPa according to the reflux ratio of (15-30): 1 to generate silane, and carrying out rectification and extraction separation to obtain high-purity silane with the purity of 99.999% or above.

The present invention relates to a non-noble metal long-chain alkane dehydrogenation catalyst, which uses CeO2 and a transition metal M as main active components, and the mass percentage of the transition metal M is 0-30 wt%; wherein M is one or a combination of more of Fe, Co and Ni. Meanwhile, the invention also discloses a preparation method and application of the catalyst. The catalyst provided by the invention shows good dehydrogenation activity and stability in an inert atmosphere. An alternative solution which is low in cost, high in performance and easy to operate is provided for a long-chain alkane dehydrogenation process.

The application belongs to the technical field of wastewater treatment, and particularly relates to a polymerization reaction device for producing polyaluminum sulfate flocculant and a production method, which comprises a base, a reaction kettle, a mixing structure and a scraping assembly. The reaction kettle is formed by combining an upper tank body and a lower tank body. An exhaust pipe is fixed to the top of the upper tank body. A feed pipe is symmetrically fixed to the upper part of the side of the lower tank body. The mixing structure is arranged in the middle of the reaction kettle. The mixing structure is rotatably installed below the middle of the upper tank body. The mixing structure comprises a driving shaft, and the side of the driving shaft is uniformly provided with stirring rods. A motor for driving the mixing structure to rotate is fixed to the top of the upper tank body. The scraping assembly is installed on the driving shaft. The scraping assembly is driven to rotate by the driving shaft to clean the foam on the top of the mixed solution in the reaction kettle. The foam on the surface of the mixed solution is cleaned by the scraping assembly, so that the gas generated in the reaction process is smoothly discharged upwards from the inside of the solution, and the reaction is stably carried out.

The invention discloses a method and system for preparing iron phosphate through an iron powder method based on oxygen micro-nano bubbles and application, and belongs to the technical field of iron phosphate preparation. The method comprises the following steps: pulping iron powder and pure water, injecting the pulped iron powder and pure water into an iron dissolving reaction kettle, adding phosphoric acid, and carrying out a leaching reaction under corresponding preset conditions to obtain a first solution containing ferrous dihydrogen phosphate; after solid-liquid separation, pumping the second filtrate into an oxidation kettle, introducing oxygen micro-nano bubbles by using a micro-nano bubble generator, and carrying out oxidation reaction on the second filtrate and ferrous dihydrogen phosphate under corresponding preset conditions to obtain a third solution containing amorphous hydrated iron phosphate and phosphoric acid; pumping the third solution into an aging kettle, and aging the amorphous ferric phosphate hydrate to generate ferric phosphate dihydrate, so as to obtain a fourth solution; after solid-liquid separation, washing the iron phosphate dihydrate, and carrying out flash evaporation drying on a filter cake to obtain dry powder; and roasting and dehydrating to finally obtain the battery-grade anhydrous iron phosphate. According to the method, reaction conditions are accurately controlled, oxygen micro-nano bubbles are innovatively introduced for oxidation, and a new way is provided for preparing high-performance products.

The invention discloses an efficient leaching reaction device for battery black powder, and relates to the technical field of new energy, the efficient leaching reaction device comprises a reaction tank, a stirring main shaft is rotatably connected in the reaction tank, a shaft sleeve is slidably connected to the surface of the stirring main shaft, a floating ring is fixedly connected to the bottom of the shaft sleeve, and an adjustable swing mechanism is mounted in the shaft sleeve; the adjustable swinging mechanism comprises a sliding block which slides in a sliding groove in the surface of the stirring main shaft and is fixedly connected to the middle part of the shaft sleeve; through cooperation of the adjustable swing mechanism and the dynamic puncturing mechanism, the adjustable swing mechanism drives the defoaming blade to swing around the rotating shaft in a reciprocating manner, and meanwhile, the stirring main shaft drives the defoaming blade to integrally rotate, so that puncturing teeth on the defoaming blade can cut bubbles from multiple angles; pricking teeth in the dynamic pricking mechanism can telescopically move under the action of a pull rope and a first spring, stubborn organic wrapping bubbles are strongly pricked, and the bubbles are effectively prevented from being attached to the surfaces of battery black powder particles.

The invention belongs to the technical field of water microdroplet manufacturing, and provides a preparation method of water microdroplets in a hydrocarbon-water system. The method comprises the following steps: preparing a quartz capillary reaction tube; preparing a microdroplet observation end and a sample injection end; sample injection: respectively inserting thin capillary syringes filled with water and hydrocarbon liquid into the quartz capillary reaction tubes, and injecting the water and the hydrocarbon liquid; fixing the quartz capillary reaction tube; preparing liquid drops, namely adjusting the temperature and the pressure in the quartz capillary reaction tube by using a cold and hot table and a constant-pressure liquid pump. The fused quartz capillary is utilized to quickly prepare the water microdroplets in a hydrocarbon-water system under high-temperature and high-pressure conditions, so that the defects that a traditional emulsification method depends on a large number of surfactants to introduce impurities and is unstable at high temperature and high pressure, microfluidic technical equipment is complex, the cost is high, the microdroplets are easy to damage at high temperature and high pressure, the preparation efficiency is low and the like are overcome; and a new way is opened up for preparing the water microdroplets under high-temperature and high-pressure conditions.

The invention relates to the technical field of mixing equipment, and discloses a mixing preparation device and method for a plant growth regulator containing a silicon element. The mixing preparation device of the silicon-containing plant growth regulator comprises a stirring main kettle, an online monitoring unit, a solid-liquid separation unit and a control unit, the stirring main kettle is used for carrying out a liquid-phase chemical reaction and separating out a solid product in situ, and is provided with a stirring piece; and the on-line monitoring unit is used for acquiring a reaction process signal and a crystallization state signal in the main stirring kettle in real time. The online monitoring unit, the solid-liquid separation unit and the control unit are arranged and cooperatively used, dynamic optimization management of the reaction crystallization process is achieved, the solid-liquid separation unit moves out crystals in time and circularly supplements materials, the problem that the crystals are secondarily wrapped is solved, meanwhile, reaction balance is pushed to move rightwards, and the reaction efficiency is improved. The conversion rate and the yield are improved.

The application belongs to the technical field of organic compound synthesis and the field of polymer preparation, and discloses a method for directly preparing a cycloolefin copolymer from dicyclopentadiene and ethylene based on a continuous flow reactor; the continuous flow reactor is used to efficiently prepare norbornene and derivatives thereof from ethylene and dicyclopentadiene, and then the norbornene and derivatives thereof are used to prepare a cycloolefin copolymer from excessive ethylene. The application uses dicyclopentadiene and ethylene as raw materials, realizes a continuous process from the synthesis of a cycloolefin monomer to the preparation of a cycloolefin copolymer, and the cycloolefin monomer does not need to be separated and stored and can directly participate in the polymerization reaction, so that the original complicated process is effectively simplified, energy consumption is reduced, the catalyst in the polymerization stage is not easy to be deactivated even at high temperature, the catalytic efficiency is high, and a high polymer yield can be obtained in a very short time.

The invention discloses a food-grade calcium carbonate continuous production device and an intelligent control method, and relates to the technical field of calcium carbonate preparation, a feeding pipeline is provided with a venturi ejector and is connected with a carbon dioxide inlet pipe, and carbon dioxide is powerfully sucked and shredded into bubbles by utilizing instantaneous negative pressure generated by high-speed flowing lime milk, so that micro-mixing is realized; the crystal growth unit comprises a horizontal tank body, the interior of the horizontal tank body is divided into serially-connected compartments through a plurality of staggered overflow baffles, slurry is forced to advance in a piston flow mode, and a low-shear stirring paddle is arranged; and the crystal form regulation and control unit comprises a vertical continuous stirring kettle, and a heating and cooling jacket is arranged on the outer wall to control the aging temperature. The intelligent control method comprises the steps of multi-dimensional data synchronous acquisition, reaction field domain modeling, crystal evolution prediction, collaborative prediction control and collaborative diagnosis optimization, a reaction field domain twinborn model and a crystal evolution twinborn model are constructed, and a field domain separation attention mechanism and a double-path prediction architecture are adopted to realize a field domain driven feedforward control strategy.

The present disclosure relates to a method for converting carbon dioxide into carbon monoxide comprising: producing atomic oxygen, providing carbon dioxide to be converted, mixing the carbon dioxide with the atomic oxygen within a mixing area such that the atomic oxygen can interact with the carbon dioxide for forming carbon monoxide within the mixing area through a first CO producing reaction: C02+0→C0+02, supplying the atomic oxygen into the mixing area at a first supply rate and supplying the carbon dioxide into the mixing area at a second supply rate, defining the first supply rate and the second supply rate such that a ratio between the first supply rate and the second supply rate remains within a pre-defined lower and upper threshold, and extracting carbon monoxide from the mixing area. The present disclosure also relates to an apparatus for converting carbon dioxide into carbon monoxide.

The invention discloses a preparation device and method of a quick-drying polyolefin hot melt adhesive. The preparation device comprises a rack, and a premixing module, a main material conveying module, a reaction synthesis module and a liquid phase metering and adding system which are arranged on the rack, the pre-mixing module comprises a pre-mixing feeding hopper and a pre-mixing bin located above the pre-mixing feeding hopper, the bottom of the pre-mixing bin is communicated with the pre-mixing feeding hopper through a discharging valve, a weighing module is arranged at the bottom of the pre-mixing feeding hopper and fixedly connected with the rack through a weighing sensor support, and a pre-mixing stirring mechanism is arranged in the pre-mixing bin; the main material conveying module comprises a feeding auger, the feeding end of the feeding auger is connected with the premixing feeding hopper through a discharging valve, and the discharging end of the feeding auger is communicated with the reaction synthesis module; through an automatic device integrated with a central control system and an optimized preparation process, accurate metering, coordinated regulation and segmented treatment in the hot melt adhesive production process are realized, and the product consistency and the production efficiency are effectively improved.

A continuous nanoparticle processing system includes a continuous flow path between an inlet and an outlet. The system has at least one sensor positioned to generate a signal indicative of a quality attribute of nanoparticles within the flow path, at least one actuator coupled to the flow path; and a controller operatively coupled to the sensor and the actuator and configured to, during operation, adjust the actuator in response to the signal to maintain the quality attribute of the nanoparticles within a target range while the nanoparticles traverse the flow path. A computer program product is disclosed.

Disclosed herein are cell processing systems, devices, and methods. The system for cell processing can include multiple instruments, each independently configured to perform one or more cell processing operations on a cartridge, and a robot capable of moving the cartridge between each of the multiple instruments.

A method is provided for manufacturing vinyl chloride monomer (VCM), the method comprises subjecting ethylene dichloride (EDC) to thermal cracking to yield a VCM-containing gaseous product, in which method an amount of thermal energy required to heat a stream of EDC-containing process fluid to temperature(s), at which cracking reactions occur, is produced and transferred to said EDC-containing process fluid using a rotary apparatus (100). A VCM production unit and use of the rotary apparatus in production of vinyl chloride monomer from EDC through therma cracking, are further provided.