Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

4578results about "Vapor condensation" patented technology

Dynamic intelligent control method and system for improving efficiency of rectifying tower

The invention discloses a dynamic intelligent control method and system for improving the efficiency of a rectifying tower, particularly relates to the technical field of chemical process control, and is used for solving the technical defect that an operation variable is mismatched with a physical state due to the fact that an existing distributed control system cannot recognize a hidden degradation state of equipment. The method comprises the following steps: acquiring temperature gradient distribution of each tower plate of a rectifying tower, thermal load of a reboiler and tower top condensation load parameters in real time, calculating a mass transfer efficiency offset by combining the temperature gradient distribution to generate a scaling trend index, and synchronously calculating a local entropy yield based on the thermal load and the condensation load to generate a thermodynamic irreversibility index. When the double indexes exceed a preset threshold value, it is judged that a recessive degradation state is entered, then a backflow ratio correction coefficient is reversely derived through a dynamic correlation model, and the correction coefficient is input into a distributed control system to dynamically adjust backflow ratio operation parameters; the product purity is maintained, the tower plate scaling process is obviously delayed, and long-term efficient operation of the rectifying tower is guaranteed.
Owner:JIANGSU ZIXING CHEM CO LTD

Concentrator and crystallizer evaporation system

An aqueous stream cleaning system including a circulation pump to receive a waste fluid and / or a concentrated liquid bottoms stream, and expel a circulation stream. The aqueous stream cleaning system can also include a primary heat exchanger to receive the circulation stream from the circulation pump. The primary heat exchanger can have a plurality of heat exchange plates that define an internal surface area for heat transfer from a distillate stream to the circulation stream to produce a cooled distillate stream and a heated circulation stream. The plurality of heat exchange plates can be spaced to facilitate free flow of solids in the circulation stream between the plurality of heat exchange plates. A mass flow rate and pressure of the circulation stream can be configured to minimize build-up of solids in the primary heat exchanger. The aqueous stream cleaning system can further include an evaporation unit to receive the heated circulation stream from the primary heat exchanger. The distillate stream is formed when steam in the heated circulation stream evaporates in the evaporation unit, and the concentrated liquid bottoms stream is formed from a portion of the heated circulation stream that does not evaporate.
Owner:VACOM SYSTEMS LLC

Polyester polyol production method, polyester polyol production device and application

The invention provides a polyester polyol production method, a polyester polyol production device and application, according to the polyester polyol production method, single-stage gas-liquid separation in the prior art is improved, and at least two-stage series gas-liquid separation is carried out in the esterification reaction process, so that the total production time is shortened, the production efficiency is improved, and the production cost is reduced. By-products such as polyether can be effectively removed, and the product quality stability of the polyester polyol can be effectively improved.
Owner:ZHEJIANG HUAFON NEW MATERIALS CO LTD

Reaction device capable of rapidly heating, cooling and maintaining temperature

The utility model relates to a reaction device capable of quickly heating, cooling and maintaining temperature. According to the reaction device, a three-way valve temperature control device consisting of a set of thermal medium circulator, a set of cold medium circulator, a control unit and two temperature control adjusting motor control three-way valve rotating devices is arranged on the reaction kettle, so that the temperature of the reaction kettle of the reaction device can be increased or decreased within half a minute (even shorter time); the problem that the reaction kettle cannot be rapidly heated and cooled in the reaction process is solved; for heat absorption and heat release experiments, the dynamic balance of the temperature can be maintained by setting a fixed reaction temperature; installation is simple, and operation is convenient; the problem of waste of water resources is solved; the temperature control range is wide, and when a water medium is used, the temperature control range is 1-95 DEG C; when a silicone oil medium is used, the temperature control range is-50 to 250 DEG C; the rotatable distillation head is mounted at the upper part of the reaction kettle and is directly rotated during use, so that the functions of condensation reflux and distillation extraction can be simultaneously realized.
Owner:INNER MONGOLIA SHUANGXIN POLYMER MATERIALS TECH RES INST CO LTD +1

Method and device for removing heavy components from cyclohexanol

The invention relates to the technical field of chemical engineering, in particular to a method and a device for removing heavy components from cyclohexanol. Comprising the following steps: a, rectifying a cyclohexanol-containing material from a cyclohexene hydration reaction to obtain a first solution containing cyclohexanol and heavy components in a tower kettle; b, carrying out heavy component removal operation on the first solution to obtain a third solution containing a catalyst and heavy components, a first gas phase and a second gas phase; and c, rectifying the first gas phase and the second gas phase to obtain a fourth solution subjected to heavy component removal, namely cyclohexanol subjected to heavy component removal. The entrained catalyst and heavy components are removed together, and the fluidity required by the catalyst waste liquid is maintained by using the heavy components, so that the loss of cyclohexanol is reduced.
Owner:HANGZHOU SUNENG TECH CO LTD

Polymer devolatilization process and devolatilization system

The invention provides a polymer devolatilization process and a devolatilization system. The devolatilization process comprises the following steps: heating a polymer raw material containing volatile components to obtain a molten polymer, pressurizing the molten polymer, mixing with an entrainer, and feeding into a falling film device; after sudden pressure drop and heating, the entrainer carries volatile components to be separated from the system, and a devolatilization product is obtained; the mass ratio of the polymer raw material to the entrainer is (10: 1)-(10000: 1). According to the polymer devolatilization process provided by the invention, the entrainer with a low boiling point is introduced into a reaction system, a large number of microbubbles are formed through vaporization of the entrainer and azeotropy of volatile components, removal of the volatile components in the material is enhanced through pressure swing flash evaporation, and extremely low pressure does not need to be reached in a devolatilization device.
Owner:PETROCHINA CO LTD +1

Rectification mechanism and carbon disulfide production system comprising same

The invention discloses a rectification mechanism and a carbon disulfide production system containing the same. The rectification mechanism comprises an integrated rectification tower, and an inner cavity of a shell of the integrated rectification tower is sequentially divided into a function-integrated pre-separation and sulfur removal area, a main rectification and hydrogen sulfide removal area and a condensation reflux area from bottom to top in the vertical direction; the pre-separation and sulfur removal area comprises a settling tank arranged at the lower part of the shell, a gathering cover arranged above the inner wall of the settling tank, and a gas rising pipe I arranged above the gathering cover; the invention belongs to the technical field of chemical separation, and achieves the technical effects that multi-stage functions of pre-separation, main rectification, precise purification, final condensation and the like are innovatively integrated in a single tower, so that the fundamental simplification and compactness of the equipment structure are realized; in the traditional process, separate coarse removal, fine removal and finished product towers are replaced by unique expanded settling tanks in the towers, filler layers of integrated plate heat exchangers, tower tops with spiral condensation channels and side-draw systems.
Owner:SHANGHAI BAIJIN CHEM GROUP

Cooling system and vehicle including such a cooling system

A cooling system, comprising: - a first cooling circuit (10), the first cooling circuit having a first coolant pump (12); - a second cooling circuit (20), the second cooling circuit having a second coolant pump (22); - an expansion tank (30), the expansion tank being provided with an expansion chamber (31) for accumulating coolant, wherein the expansion chamber is connected to the second cooling circuit (20) so as to allow the expansion chamber to receive coolant from the second cooling circuit; and - a degassing device (40), the degassing device being arranged in the first cooling circuit for separating bubbles from the coolant circulating therein. The degassing device (40) is located at a position lower than the expansion tank (30) and is connected to the expansion chamber (31) via a static pipeline (5) so as to allow the bubbles separated from the coolant in the degassing device to migrate upward in the static pipeline towards the expansion chamber.
Owner:SCANIA CV AB

Thickener for producing traditional Chinese medicine decoction pieces

The utility model relates to a thickener for traditional Chinese medicine decoction piece production, and belongs to the technical field of traditional Chinese medicine decoction piece production and processing, the thickener comprises a thickener, a heating table is arranged on the thickener, a condensation tank is arranged on the thickener, and a steam guide structure is arranged on the thickener. According to the thickener for producing the traditional Chinese medicine decoction pieces, a steam guide structure is arranged, an electric push rod in a lifting component is used for controlling an isolation cover cylinder to move downwards, so that the isolation cover cylinder is matched with an annular limiting table to completely cover an evaporation tank, a sealing effect is achieved through an abutting ring and a sealing component, and steam leakage is avoided; steam generated after the evaporation tank is heated is discharged into the condensation tank through the conical steam bin by utilizing the fan, so that waste caused by the fact that the liquid medicine steam is attached to the inner wall of the thickener is avoided, and the content of concentrated liquid medicine formed by condensing the steam generated after the traditional Chinese medicine decoction pieces are cooked is further increased; therefore, the practicability of the thickener for producing the traditional Chinese medicine decoction pieces is enhanced.
Owner:QINGHAI JIUKANG PREPARED SLICES OF CHINESE CRUDE DRUGS CO LTD

Sludge drying system coupled with heat storage system

The utility model relates to a sludge drying system coupled with a heat storage system. The sludge drying system comprises a heat storage module, a sludge drying module, a waste heat collecting module and a waste heat upgrading module, the heat storage module is used for storing peak regulation steam energy of the power plant; the sludge drying module is connected with the heat storage module, comprises a plurality of drying machines which are connected in parallel, and is used for drying sludge by utilizing low-pressure steam; the waste heat collecting module is connected with the sludge drying module and is used for recycling high-temperature waste gas waste heat; the waste heat quality improving module is connected with the waste heat collecting module and used for improving the quality of the waste heat and recycling the waste heat. The utility model has the beneficial effects that the drying technology is coupled with a boiler system, so that steam energy which is difficult to store is converted into storable and combustible fuel, the deep peak regulation of a power plant is facilitated, the scale of a heat storage system is reduced, and the economical efficiency of the system is improved.
Owner:ZHEJIANG ZHENENG ENERGY SAVING TECH +1

Gas exhausting device and gas exhausting method for pinacolone condensation reaction for preventing liquid accumulation

The invention relates to the field of pinacolone condensation reaction processing, in particular to a pinacolone condensation reaction exhaust device capable of preventing liquid accumulation and an exhaust method, the pinacolone condensation reaction exhaust device comprises a pinacolone reaction kettle, and a feeding pipe is connected above the pinacolone reaction kettle in a penetrating manner. Waste gas makes contact with all the sets of curved condensation pipes which are annularly distributed and installed, the conveying and contact efficiency of the waste gas can be improved through a turbofan, when the waste gas enters the exhaust barrel, the waste gas can make full contact with a conical condensation ring and a conical condensation plate which are specially arranged, and therefore secondary condensation is conducted on the waste gas, and the waste gas can be recycled. The liquid component in the waste gas can be thoroughly condensed and formed, finally falls down, is collected into a space formed by the flange butt joint pipe and the conical frame, and is discharged out of the water inlet pipe I, so that the liquid component in the waste gas can be effectively separated; therefore, the pipeline can be effectively protected and the pipeline is prevented from being blocked by accumulated liquid in the exhaust gas emission process, and meanwhile, the exhaust gas treatment efficiency and quality can be improved.
Owner:NANTONGHONGFUDALI CHEM IND CO LTD

Device for continuously and circularly adsorbing and desorbing VOCs waste gas in CEC tail gas

The utility model relates to the technical field of waste gas treatment, in particular to a device for continuously and circularly adsorbing and desorbing VOCs waste gas in CEC tail gas. The device comprises a condensation separation unit and an adsorption and desorption unit which are sequentially communicated, the condensation separation unit comprises a condenser and a gas-liquid separator which are sequentially communicated through a pipeline; a discharge port of the condenser is connected to an upper feed port of the gas-liquid separator, and an upper gas outlet of the gas-liquid separator is connected to the adsorption and desorption unit; the adsorption and desorption unit comprises a fluidized bed adsorption tower and a desorption tower, and a discharge port in the bottom of the fluidized bed adsorption tower is connected to an adsorbent feed port in the bottom of the desorption tower; an adsorbent discharge port in the top of the desorption tower is connected to an upper feed port of the fluidized bed adsorption tower; and an upper gas outlet of the gas-liquid separator is connected to a gas inlet of the fluidized bed adsorption tower. According to the device disclosed by the utility model, the continuous cycle operation can be realized in the adsorption and desorption processes, the regeneration temperature and pressure of the adsorbent are adjustable and controllable, the adsorption efficiency is high, and the efficient removal of VOCs impurities can be ensured.
Owner:SHANDONG HUAYU TONGFANG ELECTRONIC MATERIALS CO LTD

System, method and device for treating a liquid

A multistage treatment system for a liquid, the system including a first stage with a first boiling vessel and a first heater configured to boil the liquid in the first boiling vessel at a first pressure. The boiling of the liquid generates vapour including volatile contaminants. A first vapour outlet is configured to vent the vapour from the first boiling vessel. A liquid outlet provides for fluid flow from the first boiling vessel to a subsequent stage. A second stage comprises a second boiling vessel configured to receive liquid from the liquid outlet and a second heater to boil liquid in the second boiling vessel to generate vapour. A condenser receives the vapour from the second boiling vessel and condenses the vapour to a liquid that is treated. An outlet is configured to dispense treated liquid.
Owner:ELLEN MEDICAL DEVICES PTY LTD

Drawer type membrane desolventizing device

The utility model discloses a drawer type membrane desolventizing device which comprises a shell, a heating module, a condensing module and a membrane desolventizing module. The shell comprises a drawer shell and a device shell, and the drawer shell and the device shell are connected through a detachable part; the heating module and the condensing module are arranged in the device shell; the membrane desolventizing module is arranged in the drawer shell; the membrane desolventizing module comprises a pipeline inlet, a semi-permeable membrane pipeline and a pipeline outlet which are connected in sequence. According to the membrane desolventizing device disclosed by the utility model, the membrane desolventizing module is arranged in the drawer shell, and the heating module and the condensing module are arranged in the device shell, so that the membrane desolventizing module can be disassembled to replace a semi-permeable membrane pipeline by pulling out the drawer shell when the semi-permeable membrane pipeline needs to be replaced; after replacement, only the drawer shell needs to be pushed in and fixed through the detachable part, operation is very easy and convenient, and meanwhile the problem that due to the fact that other modules are detached, air tightness is poor or the modules are damaged is solved.
Owner:SHANGHAI KAILAIPU TECH CO LTD

Methanol production system

The invention provides a methanol production system comprising a reverse water gas reaction module having a first in-situ separation reactor configured to perform reverse water gas conversion of carbon dioxide and hydrogen, generate and in-situ separate carbon monoxide and water, a methanol synthesis module connected to the reverse water gas reaction module, and the second in-situ separation module is provided with a second in-situ separation reactor, and the second in-situ separation reactor is configured to generate and separate methanol in situ by utilizing the carbon monoxide generated by the reverse water gas reaction module to react with hydrogen. According to the scheme provided by the invention, a two-step methanol preparation process and the in-situ separation type reactor are organically coupled, so that the conversion of carbon dioxide can be completed under a relatively mild working condition; the problems of low one-way conversion rate, high recycling compression work and the like in methanol preparation through carbon dioxide hydrogenation are solved; the energy consumption for separating water and methanol is saved; the methanol production cost is further reduced, and the reliability and economy of the system are improved.
Owner:FOOTECARBON CO LTD +1

Heat source optimizing device for reboiler of methanol pre-rectifying tower

The utility model discloses a heat source optimizing device for a reboiler of a methanol pre-rectifying tower, which comprises the pre-rectifying tower and the reboiler, and is characterized in that a branch pipeline is separated from the crude methanol discharge of a tower kettle and is connected with a negative pressure flash tank, and the crude methanol in the negative pressure flash tank is subjected to gas-liquid separation through flash evaporation; the bottom of the negative-pressure flash tank is connected with a methanol circulating pump, and a liquid-phase material is conveyed to a first heat exchanger at the top of the tower and returns to the negative-pressure flash tank after exchanging heat with steam at the top of the tower; a gas-phase material in the negative-pressure flash tank enters a compressor, is compressed and heated and then returns to the tower kettle of the pre-rectifying tower; according to the utility model, the process is improved by combining flash evaporation of a tower kettle discharge part with heat pump rectification, and meanwhile, the flash evaporation liquid is recycled to recycle steam heat at the top of the tower, so that the steam consumption of a reboiler of the methanol pre-rectifying tower and the use amount of circulating water at the top of the tower are effectively reduced, meanwhile, the reboiler does not need to be added, and the compression ratio of a heat pump compressor can be reduced.
Owner:NANJING CHENGZHI CLEAN ENERGY CO LTD

Continuous rosin melting and clarifying processing device and method

The invention relates to the technical field of turpentine processing, in particular to a turpentine continuous melting and clarifying processing device and method.The turpentine raw material is put into a feeding cylinder, piled in an inclined scattering cylinder, subjected to axial autorotation along with the feeding cylinder, discharged downwards and distributed in all areas in a dissolving tank, and after dissolving is completed, the turpentine raw material is poured into the feeding cylinder to be subjected to continuous melting and clarifying processing. When the telescopic part drives the sieve plate to move upwards until the bottom end of the movable cylinder abuts against the sieve plate, the sieve plate axially rotates along with the feeding cylinder and drives the movable cylinder to axially rotate, so that the material leakage port and the material scattering port are staggered, the movable cylinder rolls solid matters in the circumferential direction of the sieve plate, and the resin liquid is discharged into the clarifying tank along the liquid leakage pipe while slag is discharged from the slag outlet; after grease water in the clarification tank is layered, most of the water layer is discharged, the grease water is put into the feeding cylinder for circular treatment, and the steam injection system and the emptying pipe in the clarification tank are opened for distillation treatment, so that the continuous processing efficiency is further improved.
Owner:ANHUI HUANYU AGRICULTURE & FORESTRY TECHNOLOGY CO LTD

Device and method for removing MIBK (methyl isobutyl ketone) in raffinate for extracting and separating zirconium and hafnium

The invention provides a device and a method for removing MIBK (methyl isobutyl ketone) in raffinate for extracting and separating zirconium and hafnium, the device comprises a tank body, a liquid distribution ring is fixedly connected in the tank body, one side of the liquid distribution ring penetrates through the tank body and is outwards communicated with a feeding pipe, a plurality of spray heads are arranged below the liquid distribution ring in a penetrating manner, the outer end of the tank body is fixedly connected with a bracket, and the bracket is fixedly connected with a rotating shaft. According to the device, raffinate can be quickly conveyed into the tank body by arranging a liquid distribution ring and a spray head, rotation of a rotating shaft and a rotating plate can be completed in cooperation with a gear assembly, the fallen raffinate is scattered, it is ensured that the raffinate can uniformly fall on a steam heating pipe, and the raffinate is uniformly heated; meanwhile, the contact area of the gas phase and the liquid phase can be increased in cooperation with the condensation assembly, the phase splitting barrel and the grid plate, the MIBK separation efficiency is improved, and the purpose of rapidly removing oil is achieved through the principle that the volatility is affected by factors such as liquid diffusion and temperature.
Owner:JINGPENG TECHNOLOGY (ZHANGJIAGANG) CO LTD

Condensing equipment for distillation separation of medical intermediates

The invention relates to the technical field of medicine production, in particular to condensing equipment for distillation separation of medical intermediates, which comprises a condensing tank, a refrigerant feeding pipe mounted on the lower side of the condensing tank and a refrigerant discharging pipe mounted on the upper side of the condensing tank, the condensation pipe assembly comprises a plurality of spiral condensation pipes, a feeding pipeline and a liquid outlet pipe, the feeding pipeline is arranged on the side, away from the refrigerant inlet pipe, of the condensation tank, the spiral condensation pipes are arranged downwards in a spiral mode, the multiple spiral condensation pipes are arranged in an up-down parallel mode, and the liquid outlet pipe is arranged among the multiple spiral condensation pipes; a flow guide ring layer is arranged on the inner side of the condensation pipe, a plurality of annular condensation grooves which are arranged in parallel up and down are formed in the flow guide ring layer, a flow guide cavity is formed in the flow guide ring layer, and a plurality of spraying openings communicated with the flow guide cavity are annularly formed in the annular condensation grooves. The contact time of a refrigerant and the spiral condensation pipe is prolonged, and therefore the condensation efficiency is improved.
Owner:JINXI SPRING PHARMA

Hydrogel-based water-energy-resource co-production solar evaporator and application thereof

The invention discloses a hydrogel-based water-energy-resource co-production solar evaporator and application thereof, and belongs to the technical field of chemistry and environment, the hydrogel-based water-energy-resource co-production solar evaporator is prepared by taking sodium alginate hydrogel as a matrix, adding carbon nanotubes and a titanium-based lithium ion sieve or a metal-doped titanium-based lithium ion sieve into a solution of the sodium alginate hydrogel, taking polyurethane sponge as a carrier frame, and preparing the hydrogel-based water-energy-resource co-production solar evaporator. Ca2 + is adopted as a cross-linking agent to construct a solar evaporator with a flexible size (centimeter-level to meter-level components can be prepared according to application scenes), the solar evaporator is used for the solar driven evaporation process of lithium-containing water resources such as salt lake seawater, and Li + selective enrichment, fresh water collection and waste heat power generation are synchronously achieved. Moreover, the evaporator has the characteristics of simple preparation process, low cost and excellent environmental compatibility, also has a good removal effect on salt ions, and keeps stable fresh water collection performance in a long-time operation process.
Owner:SHANDONG UNIV

Dividing wall column and rectification device

The utility model relates to the technical field of chemical separation, and provides a dividing wall column and a rectification device.The dividing wall column comprises a column body, a partition plate, a first distributor and a first liquid collection tray, the partition plate is arranged in the column body and extends in the height direction of the column body, and the top face of the partition plate and the inner top wall of the column body are arranged at intervals in the height direction of the column body; the bottom surface of the partition plate and the inner bottom wall of the tower body are arranged at intervals; in the height direction intersecting with the tower body, one side wall face of the partition plate and a part of the inner wall of the tower body define a feeding section, the other side wall face of the partition plate and the other part of the tower body define a discharging section, the first distributor is arranged in the feeding section and connected with the tower body and the partition plate, and the first liquid collecting disc is arranged in the discharging section and connected with the tower body and the partition plate. According to the invention, the problems of high energy consumption and large occupied area when silicate ester is separated in a double-tower rectification mode can be solved.
Owner:HUALU ENG & TECH

System and method for removing condensable particulate matters through multi-field coupling synergistic enhanced condensation

The invention belongs to the field of industrial flue gas purification technology and energy conservation, and relates to a system and a method for removing condensable particulate matters through multi-field coupling synergistic enhanced condensation, the system comprises a desulfurization tower, a flash tank, a condensation structure, a liquid collecting tank and a cold water spraying layer, a slurry distribution layer of the flash tank is connected with a tower kettle of the desulfurization tower, and a flash slurry pool of the flash tank is connected with the slurry spraying layer; the liquid collecting tank, the condensation structure and the cold water spraying layer are sequentially arranged from bottom to top and are integrated in the same shell to form a secondary removal device capable of condensing particles, the secondary removal device is communicated with the top of the desulfurization tower, and flue gas channels are uniformly distributed on the liquid collecting tank; the condensation structure is formed by combining a plurality of obliquely-arranged wave-shaped condensation plates in parallel, the surfaces of the wave-shaped condensation plates are arranged in a hydrophobic mode, a plurality of protrusions and pits are arranged on the faces, facing flue gas, of the wave-shaped condensation plates, and condensable particles in the flue gas can be effectively removed.
Owner:SHANDONG GUOSHUN CONSTR GRP

Ammonium sulfate wastewater treatment system

The utility model discloses an ammonium sulfate wastewater treatment system which comprises an ammonium sulfate wastewater storage pool used for collecting ammonium sulfate wastewater, the calcium hydroxide preparation system is used for preparing a calcium hydroxide solution, an evaporator and a first circulating heater and is used for reacting ammonium sulfate wastewater and calcium hydroxide and heating and evaporating; the first crystallizer and the second circulating heater as well as the second crystallizer and the third circulating heater are used for two times of evaporative crystallization, a final concentrated solution is filtered by the filter and then flows into the mother liquor collecting tank to facilitate wastewater treatment, and evaporated ammonia gas is absorbed by the cooling absorption tower and the condensate collecting tank to form ammonia water; and condensate water of the second heat exchanger, the first circulating heater, the second circulating heater and the third circulating heater also flows back to the condensate collecting pool. According to the wastewater treatment system, ammonium sulfate wastewater and a calcium hydroxide solution are distilled and crystallized, so that calcium sulfate and ammonia water can be recovered, and waste utilization is realized.
Owner:ZHANGJIAGANG QINGYUAN WATER TREATMENT CO LTD

Pyrolysis oil and gas cutting device and method

The present invention discloses a pyrolysis oil and gas cutting device and method, comprising a waste rubber pellet pyrolysis module, a pyrolysis oil and gas high-efficiency cutting module, a pyrolysis oil and gas condensation module, a Roots blower, a non-condensable gas pressure-stabilizing and conveying module, and a control module. By spraying cooling water and circulating non-condensable gas onto the high-temperature pyrolysis oil and gas, the present invention utilizes the vaporization of the cooling water to absorb a large amount of latent heat of phase change, fully condensing the high-temperature pyrolysis oil and gas. Furthermore, the generated water vapor and non-condensable gas reduce the partial pressure of low-flash-point components in the oil and gas, causing them to continuously migrate from the liquid phase to the gas phase. While ensuring that the oil product flash point meets standards, the minimum flash point cutting temperature required for condensation of high-flash-point oil is lowered, thereby increasing the yield of high-flash-point oil.
Owner:ZHEJIANG UNIV

Compression cycle heat supply heavy water rectification process

The invention relates to the field of heavy water production, and discloses a compression cycle heat supply heavy water rectification process which comprises the following steps: 1, carrying out primary rectification on feed water; 2, condensing tower top steam by a first-stage cooler to obtain tower top produced liquid, enabling one part of the produced liquid to flow back to a first-stage rectifying tower, discharging the other part of the produced liquid, pressurizing and heating a working medium heated by the first-stage cooler by a compressor, and feeding the working medium into a first-stage reboiler; 3, feeding one part of deuterium-enriched water of the tower kettle into a first-stage reboiler, boiling, returning to the bottom of the rectifying tower, taking the rest part as feed water for next-stage rectification, and returning a working medium cooled by the first-stage reboiler into a first-stage cooler through a first-stage expansion valve to be heated and evaporated; and 4, performing N-stage rectification and purification until the heavy water meets the purity requirement. By utilizing the characteristics that the boiling difference between water and heavy water is extremely small and the condensation heat of the tower kettle is equivalent to the heat source required by the tower kettle, the condensation heat of tower top steam is transferred to the tower kettle through the circulating working medium, the energy consumption is greatly reduced, and a large amount of heat sources can be provided for the system by a small amount of power consumption of the compressor.
Owner:CHENGDU SEPMEM SCI & TECH

Low-temperature cold trap water removal device

The invention discloses a low-temperature cold trap water removal device which comprises more than two water removal channels which are connected in parallel; each water removal channel comprises a refrigeration water removal gas path and an ice melting purging gas path which are connected in series; each refrigeration and water removal gas path is also connected with an inlet of a dry gas collection gas path, and an outlet of the dry gas collection gas path is used for being connected with an analyzer; and each water removal channel is connected with a controller, and the controller is used for controlling the refrigeration water removal gas paths and the ice melting purging gas paths of the different water removal channels to operate in a staggered mode. According to the application, moisture in the gas to be dewatered can be effectively removed, frost can be timely removed, and related phenomena such as relatively large dead volume of the cold trap can be avoided.
Owner:四川省成都生态环境监测中心站

Methods And Systems For Separating Metals

Methods and systems for separating a first metal from a metal-containing feed stream are provided. The method can include applying solar energy, for example, by focusing one or more mirrors in one or more heliostats, to heat a metal-containing feed stream in a heating zone to a first temperature to produce a first vapor including the first metal. The first vapor can be condensed in a condensation zone to produce a first liquid including the first metal, and the first liquid can be collected. The system can include a separation unit include a heating zone in fluid communication with a condensation zone and a means for applying solar energy to heat a metal-containing feed stream disposed in the heating zone.
Owner:NANT HOLDINGS IP LLC

Organic waste gas steam desorption condensation regeneration recovery device

The invention discloses an organic waste gas steam desorption, condensation, regeneration and recovery device, and relates to the technical field of organic waste gas regeneration and recovery, the organic waste gas steam desorption, condensation, regeneration and recovery device comprises an adsorption box and a first fan, one side of a rotating plate is provided with an alternating mechanism, and the top end of a condensation cylinder communicates with a self-cleaning mechanism; the alternating mechanism and the self-cleaning mechanism are dual systems, the alternating mechanism adopts a four-turntable modular design, each turntable bears a plurality of condenser pipes, and the condenser pipes can be quickly taken and placed through station alternating driven by a rotating plate in cooperation with rotating positioning of the turntables; the self-cleaning mechanism is provided with an overturning roller, automatic taking and placing of the condensation pipe are completed under the condition that a condensation shell is kept in a sealed state, and after the condensation pipe is transferred to a brushing station through a clamping head, surface attachments are efficiently removed through relative rotation movement of a pipe body and bristles. According to the composite design, the whole-process non-stop operation is realized in a breakthrough manner, the continuous and stable operation of the organic waste gas treatment system is ensured, the overall treatment efficiency is improved, and meanwhile, the maintenance cost is reduced.
Owner:赣州市生态环境技术服务中心 +1

Methods and systems for separating metals

Methods and systems for separating a first metal from a metal-containing feed stream are provided. The method can include applying solar energy, for example, by focusing one or more mirrors in one or more heliostats, to heat a metal-containing feed stream in a heating zone to a first temperature to produce a first vapor including the first metal. The first vapor can be condensed in a condensation zone to produce a first liquid including the first metal, and the first liquid can be collected. The system can include a separation unit include a heating zone in fluid communication with a condensation zone and a means for applying solar energy to heat a metal-containing feed stream disposed in the heating zone.
Owner:NANT HOLDINGS IP LLC