261results about "Auxillary pretreatment" patented technology

A method of recovering carbon dioxide from flue gases of a plurality of carbon dioxide emitters (1, 2, 3, 4) of a process plant network (100) is proposed, wherein the carbon dioxide emitters (1, 2, 3, 4) comprise individual flue gas ducts (11) operated at individual flue gas duct pressures, wherein each of the individual flue gas ducts (11) is connected via a pressure maintaining valve (13) to a common flue gas collecting duct (10), wherein each of the individual flue gas ducts (11) is connected via a flue gas flap (14) to an individual or common flue gas release unit (15), wherein the flue gas collecting duct (10) is connected to a carbon dioxide removal arrangement (20) including a flue gas blower (21), wherein the method comprises controlling flue gas duct pressures in the individual flue gas ducts (11) by operating the pressure maintaining valves (13) using flue gas duct pressure set values, the flue gas duct pressure set values corresponding to pressures required to release the respective flue gas via the individual or common flue gas release unit (15) at an opened state of the respective flue gas flap (14) to the atmosphere, and wherein the method further comprises adjusting a pressure in the flue gas collecting duct (10) by operating the flue gas blower (21). A process plant network (100) is also proposed.

The invention belongs to the technical field of formaldehyde waste gas treatment for plywood gluing, and relates to a circulating formaldehyde adsorption regeneration system for plywood gluing. The electrostatic-ultrasonic coupling demister and a humidity self-adaptive purification adsorption path are introduced, so that the problem that the efficiency of a traditional adsorption process is reduced under the conditions of paint mist particle interference and humidity fluctuation is solved, and the adaptability to complex working conditions is improved; an adsorbent performance attenuation kinetic model and a multi-source data intelligent control strategy are established, accurate monitoring of adsorption saturation and dynamic adjustment of an adsorption penetration threshold value and regeneration process parameters are achieved, and the problem that the treatment effect is reduced due to adsorbent performance attenuation is solved; through the design of the grading regeneration technology and the tail gas catalytic oxidation device, the energy utilization efficiency in the adsorbent regeneration process is optimized, high-concentration formaldehyde mixed gas is thoroughly decomposed into harmless substances, and the risk of secondary pollution is avoided.

Methods and systems for recuperating power from a pressurized fluid stream of a carbon capture system are disclosed. A compressor pressurizes the carbon dioxide containing feed fluid and passes this fluid stream through a carbon capture process. The pressurized stream is expanded across a turbine where power is recovered.

The invention discloses a turbofan rotational flow efficient energy-saving gas separator, which belongs to the technical field of gas-liquid separators, and comprises a tank body, a feeding pipe is arranged on the side surface of the tank body, a gas outlet pipe is arranged at the top of the tank body, a liquid outlet pipe is arranged at the bottom of the tank body, a centrifugal cylinder is arranged in the middle of the tank body, and the feeding pipe is communicated into the centrifugal cylinder; the centrifugal barrel is communicated with the space in the tank body, a first fan is arranged in the centrifugal barrel, and the first fan is driven to rotate so that rotational flow can be formed in the centrifugal barrel; according to the turbofan rotational flow efficient energy-saving gas separator provided by the invention, the first fan is mounted in the centrifugal barrel, the first fan rotates to generate rotational flow, a solid phase and a liquid phase with high density are in contact with the inner wall of the centrifugal barrel under the action of centrifugal force generated by rotation, and meanwhile, solid particles and tiny liquid drops in gas collide with fan blades; liquid drops can be promoted to coalesce and form a liquid film on the inner wall of the centrifugal cylinder, and then flow into the bottom of the separator under the action of gravity to be discharged, so that efficient gas-liquid separation is realized.

The invention discloses a rotary kiln flue gas denitration device, and relates to the technical field of rotary kiln flue gas treatment.The rotary kiln flue gas denitration device comprises an outer furnace body assembly, a centrifugal furnace assembly and a through assembly, a flue gas through pipe is arranged on the inner side of the bottom of the outer furnace body assembly, and a rotating pipe is arranged at the outer end of the top of the flue gas through pipe; a centrifugal furnace assembly is arranged in the outer furnace body assembly. The water inlet pipe is connected with an external water source, when the centrifugal furnace body rotates, a water curtain is sprayed into the furnace through the spraying head, the water curtain makes contact with high-temperature flue gas to achieve cooling and adsorb dust particles, dust-containing water is thrown to the outer wall under the action of centrifugal force, and dust removal is completed synchronously; due to the fact that an ammonia water method with titanium dioxide as a catalyst is adopted for flue gas denitration of the rotary kiln, high temperature easily causes sintering of the catalyst, and the catalytic efficiency can be reduced by dust, according to the design, centrifugal rotation is matched with spraying, the water-gas contact area is enlarged in a single process, the cooling and dust removing effects are enhanced at the same time, and therefore the denitration efficiency and the equipment operation stability are improved.

The invention belongs to the technical field of natural gas filtration, and particularly discloses a multi-field coupling synergistic natural gas coalescence, separation and filtration device which comprises a shell body, a vibration generator, a sound wave generator, a magnetic field generator, a filter element body and an integrated control module. A cavity is formed in the shell body, an air inlet and an air outlet which are communicated with the cavity are formed in the shell body, the filter element body is mounted in the cavity, and the interior of the filter element body is communicated with the air outlet; a hollow interlayer is arranged between the shell body and the cavity, and the magnetic field generator and the sound wave generator are both arranged in the hollow interlayer; the vibration generator is arranged on the filter element body; the integrated control module comprises a control unit. By means of the structural design, sound-magnetism-vibration multi-field synergistic interaction is achieved, the limitation of a single physical field is broken through, the self-cleaning function of the filter element body is effectively achieved, the blocking speed of pores of the filter element body is decreased, pressure loss is reduced, and the service life of the filter element body is prolonged.

A carbon dioxide recovery system includes: a cooling tower configured to cool a gas containing carbon dioxide by bringing the gas into contact with cooling water; an absorption tower configured to cause the carbon dioxide to be absorbed into an absorbing liquid by bringing the gas cooled in the cooling tower into contact with the absorbing liquid; a regeneration tower configured to release the carbon dioxide from the absorbing liquid by heating the absorbing liquid in which the carbon dioxide is absorbed in the absorption tower; and a heat pump configured to directly or indirectly heat the absorbing liquid in the regeneration tower with heat of the cooling water.

The invention discloses an efficient and low-consumption waste gas purification system applied to industrial production, and relates to the technical field of industrial waste gas purification. Comprising a spray tower, a bag-type dust collector, a heat exchanger, an air inlet pipeline connected among the spray tower, the bag-type dust collector and the heat exchanger, an air collecting hood mounted at one end of the air inlet pipeline, an air outlet pipeline mounted at the top of the spray tower, a fan mounted at the bottom of the air outlet pipeline and a chimney mounted at an air outlet of the fan, and an upper grating plate is mounted in the spray tower. By arranging the water collecting hopper, the impeller and the generator, potential energy generated when washing liquid flows into the water storage cavity can be converted into kinetic energy and transmitted to the generator for power generation, the converted electric energy is supplied to electrical equipment in the spray tower for use, and the electric energy consumption of a circulating pump and a fan of the spray tower is reduced; by arranging a water collecting hopper and a liquid level sensor, the effect of monitoring the flooding phenomenon in the spray tower can be achieved.

Disclosed is an ammonia stripping device, and a resource recovery type high concentration wastewater treatment system using the ammonia stripping device. The ammonia stripping device optimizes the conditions of pH, temperature, and pressure within a decompression type reactor with respect to raw water resulting from gathering high concentration wastewater and removing a solid therefrom and causes the stripped ammonia to be highly purified in a gas phase without phase change by a separation membrane process of causing the stripped ammonia to pass through a gas separation membrane, and selectively recovering the recovered ammonia. The recovered ammonia of high purity can be reused in being made into resources such as production of urea solutions, power generation by raw materials of green hydrogen and mixed fuel, and so on.

The invention discloses thermoelectric power plant waste gas desulfurization and denitrification and dust integrated treatment equipment, which comprises a framework assembly component and an atomization injection part, and a gas inlet opening and closing component assembled by a bolt is arranged on the inner side of one end of the framework assembly component; a cooling assembly installed in a sleeved mode is arranged on the inner side of the lower portion of the air inlet opening and closing assembly, an intercepting dust removal assembly installed in a sleeved mode is arranged on the inner side of the upper portion of the air inlet opening and closing assembly, and a switching drainage assembly connected in a sleeved mode is arranged at the output end of the air inlet opening and closing assembly. According to the device, after a driving motor is mainly used for outputting power to operate, a driving gear and a gear ring are subjected to meshing transmission, and after meshing transmission, a pasting wheel frame, a through hole plate, a roller shaft rod, an arc-shaped blade, an upper pasting disc, a sleeving opening and an adsorption rod are rotated, and then the arc-shaped blade can effectively blow wind; and therefore, the waste gas can be detained for a longer time, the deep separation effect can be effectively achieved, and the exhaust cleanliness of equipment is improved.

The invention belongs to the technical field of wet dust removal devices, and particularly relates to a turbulence-enhanced efficient energy-saving wet dust removal device, and a Venturi condensation unit comprises a shrinkage pipe, an adjustable throat pipe and a diffusion pipe which are connected in sequence; the turbulent flow mixing and strengthening unit is connected between an outlet of the diffusion pipe and an inlet of the fiber grid condensation and filtration unit, and a static turbulent flow generator is arranged in the turbulent flow mixing and strengthening unit and used for enabling gas-liquid-solid multiphase flow from the Venturi condensation unit to generate rotation and turbulent flow; the fiber grid coagulation filtering unit comprises a shell and at least one layer of fiber grid plate arranged in the shell; the washing liquid circulation assembly comprises a liquid storage tank, a water pump and a first connecting pipeline and is used for conveying washing liquid in the liquid storage tank to the atomizing nozzles and the liquid distribution device. The system has the advantages of low-resistance operation, self-cleaning capability, intelligent adjustment and high system integration degree.

Compositions and methods for removing hydrogen sulfide, gas phase thiol, carbonyl sulfide, and combinations thereof from a gas / vapor stream are provided by utilizing a renewable formulation medium. The composition may include an activated carbon media (BCT-AC media) treated with a binding complex. The compositions and methods offer advantages over currently known technologies by reducing the number of process steps required and thus reduced capital and operating costs, and eliminating aqueous phase processes that are expensive to run and produce undesired waste by-products. In addition, the provided compositions and methods remove hydrogen sulfide as recoverable elemental sulfur, and are ideally suited for use in gas / vapor reactions in which carbon dioxide may be present, as it has no process or economic impact on the composition or process.

The invention relates to a membrane type carbon dioxide separation method. The invention discloses a membrane type method for separating CO2 from flue gas. An exemplary method includes passing a fluid stream including the flue gas through a CO2 and H2O permeable membrane, removing a treated gas having less CO2 than the flue gas from a feed side of the membrane, and removing a permeate including CO2 and H2O from a permeate side of the membrane. Suitably, this permeate is removed at a vacuum pressure of sub-atmospheric pressure. The permeate is then cooled to remove at least some H2O from the permeate and form a smaller volume of H2O depleted, CO2 enriched permeate.

An electrochemically-based carbon-dioxide gas separation system includes an energy tower including an internal vertical duct that has an upper inlet open to outside air at an upper end of the energy tower and one or more air outlets at a lower portion of the energy tower. A spray system is mounted adjacent the upper inlet for spraying water droplets into air entering the internal vertical duct, causing the air, and water droplets mixed with the air, to become cooler and denser than the outside air to create a down draft of a humidified air stream within the duct. The humidified air stream flows from the one or more air outlets through one or more electrochemically-based carbon-dioxide gas separation units.

The invention relates to the field of industrial waste gas treatment, and discloses a technology for removing NOx and SOs in industrial flue gas through an ultrasonic atomization wet method. The technology comprises the steps that S1, the industrial flue gas is cooled and dedusted; s2, performing oxidation washing on NO by using a first washing solution and a second washing solution respectively; s3, absorbing NOx and SOs generated by oxidation of the industrial flue gas by using an absorption liquid subjected to ultrasonic atomization; s4, carrying out demisting treatment on the industrial flue gas; a first washing solution in the step S2 is a 0.5-1.5 wt% potassium persulfate aqueous solution, and a second washing solution is composed of 1-2wt% of ferrous sulfate, 0.5-1wt% of EDTA and the balance of water; the absorption liquid in the step S3 is prepared from basic hydroxide, carbonate, an interface modifier and water. According to the ultrasonic atomization wet process, the solid precipitation amount of the absorption liquid is small, the NOx and SOabsorptivity is high, and equipment cannot be corroded after long-term use.

Device for separating pollutants and / or particles from a process exhaust gas stream, in which a process raw gas flows by means of a compressor towards at least one filter element and through the at least one filter element; wherein the at least one filter element is arranged in a chamber and a metering device for a powdered additive is arranged upstream of the at least one filter element in the flow direction of the process raw gas, with which the additive can be supplied to the process raw gas. characterized in that wherein a storage container (A) for the powdered additive is arranged on the dosing device such that the powdered additive is dispensed onto a surface of at least one sieve (D) and that at least one sieve (D) can be set into vibration by means of a device (B) and / or vibrations can be coupled into the sieve (D) that act on the sieve (D); wherein characterized by the fact that The mesh size of the at least one sieve (D) and the particle size of the powdered additive are selected such that particles of the powdered additive only pass through the sieve (D) if the at least one sieve (D) has been set into vibration or the sieve (D) is vibrating and particles that have passed through the at least one sieve (D) can be fed into the process raw gas stream and are deposited as part of a filter cake on the at least one filter element, wherein two sieves (D) are arranged decoupled from each other so that independent, unhindered vibration of one of the two sieves (D) or both sieves (D) is possible.

This invention discloses a wet multi-stage cyclone dust collector, comprising a primary volute and a secondary volute connected vertically, with a partition between them. The primary volute's sidewall is connected to an inlet chamber, and its bottom is connected to a dust hopper. A water pipe and a fish-scale atomizing plate are installed in the inlet chamber. A primary separation cylinder is vertically installed inside the primary volute, passing through the partition and connecting to the secondary volute. The dust-laden airflow enters the secondary volute through the primary separation cylinder, achieving the first separation of water vapor and dust particles from the airflow. A secondary separation cylinder is horizontally installed inside the secondary volute, with one end positioned at the tail of the secondary volute and the other end connected to a centrifugal fan. Under centrifugal force, water vapor and dust particles are separated from the airflow a second time, and the final airflow is discharged from the centrifugal fan in compliance with emission standards. This invention realizes the application of wet methods in cyclone dust collectors, improving the dust removal efficiency of cyclone dust collectors, enhancing the ability to treat dust particles with a diameter below 10μm, while solving the problem of large size in multi-stage cyclone dust collectors, increasing equipment adaptability, and extending service life.

In a process of drying and purifying a fluid (F) containing CO2 and water, the fluid is cooled against water (1), the cooling water warming up, condensed water (3,BD) is separated to obtain a partially dried fluid (Fd), the partially dried fluid is dried to obtain a dried fluid (Fdd), the dried fluid is heated against water which cools down to obtain water (5) and a dried fluid (Fddd) at a seventh temperature T7, water is cooled by heat exchange with a cooling source (F1) generating water (1) and the generated water is used to cool the fluid.

A gas conditioning system removes contaminants including nitrogen oxides and sulfur oxides from flue gas of a marine vessel, and includes an oxidizer unit and a direct contact cooler. The oxidizer unit receives an exhaust flue gas from a marine engine through a fluid inlet at a temperature between 150 degrees Celsius and 550 degrees Celsius, and converts at least a portion of the nitrogen oxides in the flue gas into nitrogen gas, nitrogen dioxide, or both. The direct contact cooler is fluidly connected to the oxidizer unit, and includes a housing defining a cooling chamber. The direct contact cooler directs the flue gas into contact with seawater residing in the cooling chamber and cools the flue gas to a temperature less than or equal to 60 degrees Celsius. The seawater removes some or all nitrogen dioxide and sulfur dioxide from the flue gas in the cooling chamber.

The invention relates to a waste lead storage battery smelting flue gas treatment system and method. The waste lead storage battery smelting flue gas treatment system comprises a separation mechanism, a quality separation mechanism and an adjusting mechanism which are sequentially arranged in the flowing direction of smelting flue gas and sequentially communicate with one another, and the separation mechanism is used for rapidly separating large-particle impurities in the smelting flue gas; the quality separating mechanism is used for separating dust and acid mist impurities in the smelting flue gas, and the adjusting mechanism is used for adjusting the SOconcentration in the smelting flue gas to tend to be stable and then leading out the smelting flue gas; the treatment method for the waste lead storage battery smelting flue gas is based on the treatment system for the waste lead storage battery smelting flue gas and comprises the following steps of a primary screening procedure, an impurity removing procedure, an adjusting procedure and a leading-out procedure. The problems that existing smelting flue gas treatment is unreasonable, low in efficiency, incomplete in impurity removal and large in concentration fluctuation are solved.

To appropriately treat drain.SOLUTION: A CO2 recovery system has: a combustion facility; a dust collector into which an exhaust gas containing CO2 discharged from the combustion facility is introduced, and that removes a solid component from the exhaust gas; an exhaust gas cooling device into which the exhaust gas is introduced, and that brings the exhaust gas into contact with cooling water and thereby cools the exhaust gas; a CO2 absorption tower into which the exhaust gas cooled by the exhaust gas cooling device is introduced, and that brings the exhaust gas into contact with a CO2 absorption liquid, and removes the CO2 from the exhaust gas; an exhaust gas cooling device; and a cooling water introduction line which is connected to a supply part that is a part on an upstream side of the dust collector in a flow of the exhaust gas, and introduces at least a part of the cooling water in the exhaust gas cooling device into the supply part.SELECTED DRAWING: Figure 3

The utility model belongs to the technical field of environmental protection equipment, and relates to an asphalt fume waste gas treatment system. The treatment system comprises a circulating dust removal reaction device for filtering asphalt smoke and particulate pollutants and a heat storage combustion device for combusting gaseous pollutants, the circulating dust removal reaction device comprises a venturi reactor, the output end of the venturi reactor is connected to the input end of an ascending pipeline reactor, the output end of the ascending pipeline reactor is connected to the input end of a filter, and the output end of the filter is connected to a heat storage combustion device; the heat storage combustion device comprises a combustion chamber and a plurality of heat storage chambers, and gaseous pollutants enter the combustion chamber to be combusted after being preheated through the heat storage chambers. According to the system, a dry-process circulating dust removal and heat storage combustion process is adopted, so that the problem of sewage generated by conventional wet-process asphalt fume treatment is effectively solved, and the asphalt fume can be effectively removed.

An improved multiport rotary valve assembly is disclosed for fluid control systems, particularly in direct lithium and mineral extraction applications. The assembly features a valve body comprising a housing ring, upper and lower closure discs, and a process disc, with advanced polymeric seals, including radial and lip seals, ensuring robust sealing engagement. A mechanically biased tensioning assembly, incorporating tension springs and load cells, maintains consistent sealing compression, mitigating issues of under-engagement and over-engagement caused by thermal and pressure variations. The valve assembly reduces leakage, cross-contamination, and seal degradation, enhancing extraction rates, operational efficiency, and seal longevity. Real-time monitoring and feedback mechanisms enable precise adjustments during startup, operation, and cooldown, minimizing manual intervention and downtime. This design addresses stringent purity requirements in direct lithium extraction while supporting high throughput and reliable performance under demanding conditions.

The utility model discloses a large cyclone gas separation device for spraying, which belongs to the technical field of spraying gas separation and comprises a separator, the separator comprises a cylinder and a first gas inlet, the first gas inlet is arranged on the outer side wall of the circumference of the cylinder and communicated with an inner cavity of the cylinder, and a second gas inlet is arranged on the outer side wall of the cylinder and communicated with the inner cavity of the cylinder. Impurity-containing gas enters the inner cavity of the cylinder through the first gas inlet for gas-solid separation; the spiral mechanism is arranged in an inner cavity of the first gas inlet and used for spirally guiding gas flow so that gas can rotate, and according to the large cyclone gas separation device for spraying, the spiral mechanism is used for spirally guiding impurity-containing gas at the gas inlet so that the gas can rotate; the rotating air generates large centrifugal force, the turbulence intensity of the air flow is improved, the centrifugal force and the turbulence intensity generated by the rotating air flow act together, particles are separated out more easily, and the separation efficiency of the cyclone separator is improved.

An acidic gas recovery system includes a cooling tower into which a target gas of treatment containing an acidic gas is introduced to cool the target gas of treatment; an inlet adsorption device that is configured to bring the target gas of treatment cooled in the cooling tower into contact with activated carbon to remove hydrocarbons remaining in the target gas of treatment; an absorption tower that is configured to discharge the absorbent liquid which has absorbed the acidic gas and an absorption tower discharge gas containing the target gas of treatment from which the acidic gas is removed; and a regeneration tower that is configured to discharge the absorbent liquid from which the acidic gas is released and a regeneration tower discharge gas containing the acidic gas.

Method for cleaning a gas jet projected by a rocket engine. The invention relates to a method for cleaning a gas jet (J) projected by a rocket engine, comprising at least the passage of the gas jet successively through treatment zones (10; 20) positioned in series in which water is projected onto the gas jet with calibrated nozzle (B1; B2) supply flow rates and water ejection velocity. Figure for the abstract: Fig. 1.

The present invention relates to a method for producing a deoxidized fluid stream, comprising a direct-contact cooler and one or more heat pumps. The present invention further relates to an apparatus for deoxidizing a fluid stream, comprising a direct-contact cooler and one or more heat pumps.

Systems and methods for separation of a component from a mixed gas stream by a combination of direct contact heat and material exchange in an indirect contact heat exchanger are disclosed. A contact liquid stream wets an interior surface of the process channel of the indirect contact heat exchanger and the mixed gas stream passes through the process channel, contacting the contact liquid stream for heat and mass exchange. A refrigerant in the refrigerant channel of the indirect contact heat exchanger is used for heat exchange with the contact liquid.

The invention discloses melamine tail gas treatment equipment, and belongs to the technical field of melamine tail gas treatment, the melamine tail gas treatment equipment comprises a base plate, the top end of the base plate is fixedly connected with an absorption tower and a carbonization tower, the outer side of the absorption tower is fixedly connected with a transmission pump A, the output end of the transmission pump A is fixedly connected with an outer guide pipe A, and the end, away from the transmission pump A, of the outer guide pipe A is communicated with the absorption tower; the output end of the transmission pump A is fixedly connected with a transmission pipe A, and the end, away from the transmission pump A, of the transmission pipe A communicates with the liquid inlet end of the carbonization tower; and the cooling assembly is assembled at the top end of the substrate. The melamine tail gas treatment equipment provided by the invention can solve the problem of environment-friendly treatment of the melamine tail gas, realizes cyclic utilization of resources, effectively controls the treatment cost of the melamine tail gas, realizes resource recovery while solving the problem of environment-friendly treatment of the melamine tail gas, and has the advantages of environmental protection and environmental protection. And the treatment cost of the melamine tail gas is relatively high.

A sorption filter (9) includes a sorbent granulate layer (41) configured to adsorb and / or absorb gases, in particular CO2, water and / or VOCs, a first material layer (42) having a pleated shape, and a second material layer (43) having the pleated shape, the first material layer (42) and the second material layer (43) sandwiching the sorbent granulate layer (41) so that the sorbent granulate layer (41) has the pleated shape.