750 results about "Dry gas" patented technology

The invention belongs to the field of liquefied gas ships, and particularly relates to a gas test method of a liquefied carbon dioxide liquid cargo system for a ship. Comprising the following steps: drying a cargo hold space; liquid cargo tank and pipeline drying; pressurizing a liquid cargo pipeline; liquid cargo tank gas replacement; pressurizing the liquid cargo tank and the ventilation system; a liquid cargo tank cold tank; loading in a liquid cargo tank; testing the liquid cargo pump; unloading the liquid cargo tank; sweeping the liquid cargo tank; discharging the loading pipeline; heating the liquid collecting well; heating and ventilating the liquid cargo tank. According to the invention, the gas test process of the marine liquefied carbon dioxide liquid cargo system is simplified, and the operation efficiency is improved; before the liquid cargo tank gas replacement, pressurization and tank cooling are carried out, all the liquid phase pipelines are pressurized through dry gas, the gas test of the marine liquefied carbon dioxide liquid cargo system is carried out under the semi-cooling and semi-pressure condition, and the efficiency and safety of gas test operation are improved.

The invention belongs to the technical field of freeze concentration, and relates to a freeze concentration device which comprises a dissolving assembly and a gas treatment assembly, a filtering element is arranged in the dissolving assembly and divides the dissolving assembly into an upper part and a lower part, the upper part of the dissolving assembly is used for loading crushed solids, and the lower part of the dissolving assembly is used for loading a solution obtained by dissolving; the gas treatment assembly comprises gas drying equipment, gas temperature adjusting equipment and a fan which are connected in sequence; a gas inlet is formed in the side wall or the top of the upper portion of the dissolving assembly and connected with a fan outlet, and a gas outlet is formed in the side wall of the lower portion of the dissolving assembly. Dry gas entering from the gas inlet serves as an energy medium, penetrates through broken solids on the upper portion of the dissolving assembly, conducts heat transfer and then is discharged from the gas outlet in the lower portion of the dissolving assembly, a dissolved solution enters the lower portion of the dissolving assembly through the filtering element, the solution is reserved in a segmented mode, and solutions with different concentrations are obtained. The freezing concentration of the dilute solution is realized.

The invention belongs to the technical field of freeze concentration, and relates to a freeze concentration method, which comprises the following steps: freezing a dilute solution to obtain a solid or a solid-liquid mixture, crushing the solid or solid-liquid mixture obtained by freezing, or firstly separating the solid-liquid mixture and then crushing the solid, and adopting dry gas as an energy medium, and penetrating the crushed solid and transferring heat, and staged reserving the solution to realize freezing concentration of the dilute solution. The method improves the efficiency of freeze concentration and separation purification, is simple to operate, and can be conveniently applied to the fields of food, cosmetics, biological medicine, petrochemical industry, environment-friendly treatment and the like.

According to the waste plastic double-heat-carrier circulating rapid pyrolysis fuel oil preparation device provided by the invention, a waste plastic crusher is communicated with the top of a downward pyrolysis reactor through a controllable feeder, and the upper part of the downward pyrolysis reactor is respectively communicated with a pyrolysis dry gas heat exchanger and a primary solid heat carrier return feeder; the bottom of the downward pyrolysis reactor is connected to the top of the moving bed reactor; the top of the moving bed reactor is communicated with the fractionating tower; the bottom of the moving bed is communicated with the lifting pipe heating regenerator through a to-be-generated heat carrier return feeder; a gas distributor, an ash discharge pipe and a gas inlet pipe are arranged at the bottom of the riser heating regenerator, and a first-stage gas-solid separator and a second-stage gas-solid separator are arranged at the top of the riser heating regenerator; a gas outlet of the second-stage gas-solid separator is provided with a pyrolysis dry gas heat exchanger and a waste heat boiler; a wax oil outlet, a diesel oil outlet and a gasoline outlet are formed in the bottom and the upper part of the fractionating tower, one path of tower top dry gas is connected with a water-cooling feeding pipe, the other path of tower top dry gas is communicated with a pyrolysis dry gas heat exchanger and a high-temperature gas hot melting section, and residual dry gas is delivered as a product.

The utility model relates to the technical field of hydrogen drying devices, in particular to a low-pressure, low-dew-point and low-pressure-drop hydrogen drying device which comprises an adsorption tower which comprises a tower A and a tower B, after water is cooled and separated through a regeneration cooler and a regeneration gas-water separator, the hydrogen enters an adsorption tower A through V1 to absorb water and dry to meet the requirement, the hydrogen is discharged out of the tower and passes through V7 to reach a gas using point, a small part of about 20% of gas is divided from dry gas at an outlet and is electrically heated to 180 DEG C, and the gas is sent to a tower B through V6 to regenerate and activate an adsorbent; hydrogen absorbing moisture is discharged from the tower and enters a gas inlet cooler and a gas inlet gas-water separator through a V4, the temperature of the cooled and dehydrated hydrogen is greatly increased after the cooled and dehydrated hydrogen is pressurized by a booster pump, the cooled and dehydrated hydrogen is converged with hydrogen at an inlet and then passes through a regeneration cooler and a regeneration gas-water separator, the cooled and dehydrated hydrogen returns to the adsorption tower A to adsorb moisture, and first-step pressurized reflux drying is completed; and similarly, hydrogen is adsorbed from the tower B, is subjected to split-flow heating regeneration, passes through the tower A, is pressurized and then flows back to the tower B again.

A waste plastic and petroleum mixed feeding catalytic cracking process comprises a waste plastic self-hot melting dechlorination pretreatment process, a waste plastic molten liquid and petroleum catalytic cracking process and a cracked oil gas fractionation process. Part of recycle oil and cracking dry gas in the cracking oil-gas fractionation sub-process are cyclically returned to the waste plastic self-heating melting dechlorination pretreatment process to serve as high-temperature melting oil and feeding carrying gas, and waste plastic melting liquid in the waste plastic self-heating melting dechlorination pretreatment process is sent out to be mixed with crude oil to serve as a raw material for catalytic cracking of the waste plastic melting liquid and the crude oil; the oil gas is produced to the maximum extent through efficient dispersion atomization feeding and catalytic cracking of an atomizing nozzle, and then the cracked oil gas is subjected to fractionation to produce gasoline, diesel oil, recycle oil and cracked dry gas.

A cartridge of a fuel cell humidifier includes an inner case to be inserted into a middle case of the fuel cell humidifier for humidifying dry gas supplied from the outside using wet gas discharged from a fuel cell stack; a plurality of hollow-fiber membranes accommodated inside the inner case; a first potting part which is coupled to the inner case and which fixes one side of each of the hollow-fiber membranes; a second potting part which is coupled to the inner case and which fixes the other sides of the hollow-fiber membranes; and a link member for connecting the inner case to the middle case so that the middle case and the inner case are linked so as to move according to the pressure of the wet gas positioned inside the middle case.

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.

A production device for preparing wax-based chemicals and alpha-olefin through catalytic pyrolysis of a waste plastic downer is characterized in that clean waste plastic is crushed and then is connected into a water-cooling feed pipe through a controllable feeder, a pyrolysis dry gas injection port is formed in the top end of the water-cooling feed pipe, and the bottom end of the water-cooling feed pipe is connected into a hot-melting dechlorination reactor; one path of the bottom of the hot-melting dechlorination reactor returns to the upper part of the hot-melting dechlorination reactor, the other path of the bottom of the hot-melting dechlorination reactor is connected with an atomization feeding nozzle, and a fuel gas extraction opening in the top of the hot-melting dechlorination reactor is communicated with the bottoms of the desulfurization dechlorination reactor and the riser regenerator; atomization feeding nozzles are symmetrically installed on the upper middle portion of a downer catalytic pyrolysis reactor, the bottom of the downer catalytic pyrolysis reactor is connected with an oil-gas-solid separator, a gas-phase outlet of the oil-gas-solid separator is communicated with a fractionating tower, and a solid-phase outlet of the oil-gas-solid separator is communicated with the bottom of a riser regenerator; a first-stage gas-solid separator and a second-stage gas-solid separator are sequentially mounted at the top of the riser regenerator and are communicated with the top of the downer catalytic pyrolysis reactor and the bottom of the riser regenerator; the top of the fractionating tower is communicated with the water-cooling feeding pipe, and the tower bottom is communicated with the upper part of the hot-melting dechlorination reactor.

The invention belongs to the field of powder material processing, and particularly relates to a drying and cooling all-in-one machine and a drying and cooling method.The drying and cooling all-in-one machine is characterized in that a fluidized drying section, a fluidized cooling section and a gravity cooling section are arranged in a shell body from top to bottom, so that materials of the fluidized drying section and the fluidized cooling section are in a fluidized state; by means of the arrangement, materials fed from the feeding port are rapidly spread in the horizontal direction, even particle distribution is formed in the cross section of the shell body, the materials downwards, evenly and integrally pass through the gravity cooling section, and uneven cooling caused by material segregation and different cooling speeds of all the materials is eliminated; the high heat and mass transfer rate brought by material fluidization is utilized, and the materials are efficiently dried in the drying section; and damp and hot gas can be effectively replaced in the fluidization cooling section, so that material scabbing is avoided. After the material subjected to fluidized drying, cooling and dry gas replacement enters the gravity cooling section, a refrigerant with lower temperature can be adopted for cooling, and meanwhile, the cooling efficiency and the cooling effect are improved.

The invention discloses a composite aperture molecular sieve catalytic cracking catalyst and a preparation method thereof, and belongs to the technical field of catalytic cracking, the composite aperture molecular sieve catalytic cracking catalyst comprises 20-30% of a macroporous material, 40-60% of a mesoporous-microporous molecular sieve and 20-30% of a binder; the macroporous material is a macroporous alumina / kaolin compound, and the macroporous alumina / kaolin compound takes macroporous alumina as a core and macroporous kaolin as a shell; the mesoporous-microporous molecular sieve is a ZMQ-1 molecular sieve. According to the mode, the macroporous material is prepared from the macroporous aluminum oxide / kaolin compound, the ZMQ-1 molecular sieve and the binder, and the macroporous material takes macroporous aluminum oxide as a core and macroporous kaolin as a shell in the macroporous aluminum oxide / kaolin compound. The catalyst for catalytic cracking of heavy oil has the advantages of high yields of dry gas, liquefied gas, gasoline and diesel oil, low yields of coke and heavy oil and the like. The secondary cracking reaction of gasoline or diesel oil can be effectively prevented, so that the yield of gasoline and diesel oil is improved.

The utility model discloses a drying device for workpieces after electroplating, and relates to the technical field of workpiece processing equipment. The key points of the technical solution are: comprising a box body, wherein a feed port and a discharge port are respectively arranged on both sides of the box body, wherein a guide plate extending inward is arranged on the discharge port, and a partition net is arranged on the top of the box body; and further comprising a drying device arranged inside the box body and corresponding to the positions of the feed port and the discharge port, wherein the drying device comprises a driving device, a workpiece guiding device, a bearing box and a gas guiding device. The utility model adopts a cyclic drying form, wherein the bearing box with the workpiece in the process of circular rotation will contact the dry gas diffused from the gas guiding device between the disc seats, and at the same time, the loading end face and the connecting end face of the bearing box are inclined structures, and during the circular motion of the bearing box, the workpiece will be turned over for many times and the position will be adjusted, so that different end faces of the workpiece are fully in contact with the dry gas, and a comprehensive drying effect is achieved.

The embodiment of the utility model provides a clamp for optical module testing and optical module testing equipment, and the clamp comprises a housing which comprises a top plate, a bottom plate and side plates which are connected with the top plate and the bottom plate, and the side plates, the top plate and the bottom plate form an accommodation space; the top plate is provided with an airflow channel for introducing dry gas into the accommodating space; the temperature control assembly is arranged in the accommodating space; the limiting structure is provided with a limiting through hole, the limiting structure is arranged corresponding to the temperature control assembly, the limiting through hole is provided with a limiting boss corresponding to the temperature control assembly and an inserting cavity corresponding to the limiting boss, and the inserting cavity is used for inserting the optical module to be detected; and the driving mechanism is arranged in the accommodating space and is in transmission connection with the temperature control assembly. According to the optical module testing device, the shell is composed of the top plate, the bottom plate and the side plates, and the side plates, the top plate and the bottom plate define the relatively-closed containing space, so that the air tightness of the shell is improved, air exchange between the shell and the outside is reduced, and normal proceeding of optical module testing is guaranteed.

The invention relates to the technical field of fuel cells, and discloses a hydrogen fuel cell system and a use method thereof. A hot outlet of the heat exchanger is communicated to the gas outlet end, a cold inlet is communicated with the hydrogen inlet end, and a cold outlet is communicated to a hydrogen inlet of the galvanic pile; the dry gas outlet of the humidifier is communicated to the air inlet, the gas outlet is communicated to the wet gas inlet of the humidifier, and the wet gas outlet of the humidifier is communicated to the gas outlet end; a first cold air outlet of the first vortex tube is respectively communicated with a dry air inlet of the humidifier, an inlet of the heat dissipation cavity and an air outlet end, and a first hot air outlet of the first vortex tube is respectively communicated with the dry air inlet and a hot inlet of the heat exchanger; a second cold air outlet of the second vortex tube is communicated with the dry air inlet, the heat dissipation cavity inlet and the air outlet end, and a second hot air outlet of the second vortex tube is communicated with the hot inlet. According to the hydrogen fuel cell system disclosed by the invention, accurate and stable thermal management is carried out by utilizing multiple air compressors and multiple vortex tubes.

The invention discloses a liquid engine thermal test post-processing method which comprises the following steps: after an engine thermal test is finished, opening each discharge path of an engine, and injecting preset dry gas from a pump inlet, a thrust chamber head cavity and a generator head cavity of the engine for at least a first preset duration so as to blow off and rewarm an inner cavity of the engine; in the blowing and rewarming process of the engine, preset dry gas is injected from the gas path blind cavity of the engine and lasts for at least a second preset duration, so that the gas path blind cavity of the engine is blown; and after blowing and rewarming of the engine are finished, dew point detection is conducted on the target point position of the engine till the detection result of dew point detection meets the preset condition. On one hand, the engine thermal test post-treatment process is simplified, the engine thermal test period is shortened, on the other hand, the engine inner cavity and the engine blind cavity are blown off at the same time, the blowing-off effect of the engine is improved, and the reusability of the engine is greatly improved.

The utility model belongs to a fire-fighting safety management and control device in the technical field of energy storage industry, and particularly discloses a fire-fighting device for safety management and control of an energy storage battery unit. According to the fire-fighting device for safety management and control of the energy storage battery unit, the exhaust port is used for being communicated with the equipment air inlet of the equipment to be detected, the air inlet is used for being communicated with the equipment exhaust port of the equipment to be detected, gas in the equipment to be detected enters the gas detection assembly through the air inlet of the fire-fighting device, and the gas detection assembly detects components of the gas; the detection cavity, the isolation cavity and the dehumidification cavity which are independently arranged are arranged in the shell, wet gas in the detection cavity and the isolation cavity is prevented from being mixed with dry gas in the dehumidification cavity, and it is guaranteed that the gas exhausted after treatment in the dehumidification cavity is the dry gas; the fire-fighting device provided by the utility model integrates the functions of dehumidification, gas detection and gas extinguishing medium spraying, so that the functions of the fire-fighting device are diversified, the integration level of the functions of the fire-fighting device is improved, and the working efficiency is improved.

The tail gas purification equipment comprises a tower body (1), a spraying device (2) and a wire mesh demister (3), an air outlet (121) is formed in the top of the tower body, a water outlet (122) and a spraying opening (131) are formed in the side wall of the tower body, a water outlet and an air inlet (133) are formed in the bottom of the side wall of the tower body, and the interior of the tower body is divided into a drying cavity (12) located on the upper portion of the tower body and a purification cavity (13) located on the lower portion of the tower body by a partition plate (11). The middle of the partition plate protrudes upwards to form a communication opening (111). The spraying device comprises a spraying pipe (21) and a spraying head (22), the spraying pipe is horizontally arranged in the dust removal cavity, one end of the spraying pipe is fixedly connected with the spraying opening, the spraying head is fixedly arranged at the other end of the spraying pipe and communicated with the interior of the spraying pipe, a plurality of nozzles (221) are arranged on the spraying head, and the wire mesh demister is arranged in the drying cavity. According to the utility model, dust and impurity gas in the tail gas can be completely removed, so that dry gas is obtained.

The invention belongs to the technical field of freeze concentration, and relates to a freeze concentration device which comprises a dissolving assembly and a gas treatment assembly, the dissolving assembly comprises a rotating assembly and a fixing assembly; the rotating assembly is a cylindrical jacket box body, the inner side wall of the box body is composed of an air hole plate, and the outer wall is a filtering mechanism; the fixing assembly comprises a fixing shaft and a solution receiving device; the rotating assembly is arranged on the fixed shaft, the solution receiving device is fixed on the fixed shaft and surrounds the rotating assembly, the fixed assembly is provided with a gas inlet, the solution receiving device is provided with a gas outlet, and a channel is formed between the filtering mechanism of the rotating assembly and the inner side wall of the solution receiving device; dry gas treated by the gas treatment assembly passes through a tubular gas pore plate on the fixed shaft, enters the rotating assembly and penetrates through the crushed frozen material; solutions with different concentrations are received in sections to realize freeze concentration.

The utility model discloses a carbon dioxide drying system combining carbon capture and methanol synthesis, which is characterized in that carbon dioxide gas with water vapor is firstly cooled by a heat exchanger, the cooling capacity of the heat exchanger is from heat absorbed by throttling expansion of pressurized carbon dioxide, the primarily dried gas enters a first-stage vortex compressor, the gas is pressurized to about 3MPa, and the pressure of the gas is increased to about 3MPa; according to calculation, a small amount of condensate water can be produced in the pressurization process, the condensate water is stored in a tank and discharged regularly, the pressurized carbon dioxide gas is cooled, enters a heat exchanger and is throttled to 1 MPa through throttling expansion, and it is predicted that the gas can be cooled by about 25 K, and cold energy is provided for cooling the gas in the previous step. After throttling, about 1 MPa of carbon dioxide gas enters the adsorption dryer, and due to the fact that the pressure of the carbon dioxide gas is increased, the dryer can not adopt a mode of compressed air purging regeneration and a mode of replacing air with air supplied by a carbon dioxide gas cylinder, and maintenance steps are saved.

A multi-stage cooling system includes a pressure-resistant container and a parallel-mode cooling device that is at least partially arranged in the pressure-resistant container. The pressure-resistant container can store a dry gas therein that has a dew point temperature being less than −10° C. and that has a pressure being greater than 1 atm. The parallel-mode cooling device includes two heat exchangers immersed in the dry gas. The two heat exchangers respectively have a first cooling critical value and a second cooling critical value that is less than the first cooling critical value. The parallel-mode cooling device is configured to reduce a temperature of the dry gas to the first cooling critical value through one of the two heat exchangers having a lower operation power, and then further to reduce the temperature of the dry gas through another one of the two heat exchangers having a higher operation power.

To provide a dry water electrolysis hydrogen gas producing apparatus capable of suppressing malfunction of a vacuum pump.SOLUTION: Provided is a dry water electrolysis hydrogen gas producing apparatus including a water electrolysis device that electrolyzes water to generate humid water electrolysis hydrogen gas containing hydrogen and water vapor, an absorber that brings the humid water electrolysis hydrogen gas into contact with an absorbent liquid to obtain a humid absorbent liquid that selectively absorbs the dried water electrolysis hydrogen gas and water vapor with reduced humidity, a first regenerator that brings the humid absorbent liquid into contact with a drying gas for regeneration to obtain a preliminary dried absorbent liquid with reduced moisture content and a humid regeneration gas with increased humidity, a second regenerator that uses a vacuum pump to dehydrate the preliminary dried absorbent liquid under reduced pressure to obtain a dried absorbent liquid, and a liquid transfer pump that sends the dried absorbent liquid to the absorber.SELECTED DRAWING: Figure 1

A method for improving flowmeter accuracy is provided. The flowmeter comprises at least one flow tube, at least one pickoff sensor attached to the flow tube, at least one driver attached to the flow tube, and meter electronics in communication with the at least one pickoff sensor and driver. The method comprises the steps of vibrating at least one flow tube in a drive mode vibration with the at least one driver and receiving a sensor signal based on a vibrational response to the drive mode vibration from the at least one pickoff sensor. An unremediated density is derived with the flowmeter. An unremediated mass flow is derived with the flowmeter. An extended drive gain is derived with the flowmeter. At least one flow variable is received. A density ratio is calculated. A plurality of wet gas coefficients is provided. A dry gas mass flow rate is calculated with the density ratio and at least one of the plurality of wet gas coefficients.

Title of the invention: Method and apparatus for separating a mixture containing CO2 by partial condensation and / or distillation. In a process for separating a gaseous mixture containing CO2, nitrogen, and oxygen, the compressed, cooled, and dried gaseous mixture (11) is separated by partial condensation and / or distillation (CC), forming a CO2-rich fluid (21) and / or a CO2-rich gas. During a first mode of operation, a stream that is part of the compressed, cooled, and dried flow (23) is sent to a buffer tank (B) and stored. During a second mode of operation, a gaseous flow (31) stored in the buffer tank (B) is sent upstream of the washing unit. Abstract figure: Fig. 2

The invention discloses energy-saving and environment-friendly tail gas treatment equipment for a pelletizer, and relates to the technical field of tail gas treatment.The energy-saving and environment-friendly tail gas treatment equipment comprises a tail gas inlet pipe and further comprises a humidifying and cooling device, a powder removing device, a drying assembly, an air exhaust fan and a spraying device, and the spraying device is used for removing harmful gas in gas; the humidifying and cooling device comprises a humidifying tank arranged at the gas outlet end of the tail gas inlet pipe and a first spray head for injecting water mist into the humidifying tank; the powder removing device comprises an impurity removing tank which is arranged on one side of the humidifying tank and communicates with the air outlet end of the humidifying tank. The driving assembly drives the spiral piece to move upwards and rotate, the multiple scraping assemblies are used for scraping attachments on the surface of the spiral piece, the spiral piece is cleaned, and the effect of preventing the attachments from being deposited on the surface of the spiral piece is achieved. And the attachment and the liquid mixed with the impurities are dried by using the dried gas, so that harmful gas is prevented from being released when the drying assembly is cleaned.

The invention relates to the technical field of oil field oil gas gathering and transportation, in particular to an oil storage tank breather valve and hydraulic safety valve winter anti-freezing and anti-blocking device which comprises an oil storage tank body, a connecting pipe, a flame arrester, a hydraulic safety valve, a breather valve, a mounting pipe and a first blocking net. The oil storage tank is reasonable and compact in structure and convenient to use, liquid in mixed steam can be filtered and then left in the oil storage tank body through the arrangement of the first blocking net, dry gas is exhausted, the contact amount of moisture, a valve disc and liquid seal oil is reduced, the phenomena of water accumulation in a liquid seal groove, freezing in winter and freezing and frosting of a pressure valve disc in winter can be effectively reduced, and the service life of the oil storage tank is prolonged. Meanwhile, the fire barrier net can be prevented from being in contact with mixed wet steam, corrosion of the fire barrier net is effectively prevented, the service life is prolonged, liquid filtered by the first blocking net contains oil components, oil loss is reduced, and the device has the advantages of being safe, capable of saving labor, simple, convenient and efficient.

The utility model discloses a cable drying device for power cable production, which belongs to the technical field of cable production, and comprises a feeding assembly arranged at one end of the top of a drying box, an air inlet assembly arranged on one side of the drying box, a conveying assembly arranged below the drying box, and an internal cable freely drooping downwards. The air blower continuously outputs wind power outwards, the wind power is conveyed through the internal air inlet pipeline, dry gas is blown into the air inlet bin to dry the cable, and meanwhile, the heating machine heats internal air through the heating electric wire when the cable passes through the connecting channel, so that the cable can be dried in all directions, and the drying efficiency is improved. The drying speed is increased, the dried cable falls on the conveying belt and is conveyed, transported and arranged through the conveying belt, the end cover at the top can simply protect the top and prevent gas from overflowing, and the air-dried gas is exhausted through the gas outlet.

The invention discloses a process for adsorbing and separating ethane by using catalytic dry gas, and aims to solve the technical problems that in the prior art, the ethane adsorption effect is relatively poor, an adsorbent is not easy to regenerate, the chemical stability is relatively poor, next adsorption can be carried out only after desorption is completed after adsorption saturation, and the working efficiency is low. The process comprises the following steps: S1, pretreating dry gas; s2, preparing an adsorbent; and S3, the dry gas pretreated in the S1 is pressurized to the pressure condition required by the process through a compressor, and then the dry gas is cooled through circulating water and low-temperature refrigerant water in sequence. According to the process, the adsorbent is prepared by loading copper chloride on activated carbon, the prepared adsorbent has a better adsorption effect on ethane, the adsorbent can be regenerated and is good in chemical stability, and through the design of the two adsorption beds, one adsorption bed performs desorption while the other adsorption bed performs adsorption operation; and continuous adsorption and desorption operation can be realized, and the working efficiency is higher.

The utility model provides a drying device which comprises a heating cylinder and a stirring cylinder rotationally arranged in the heating cylinder, a feeding assembly used for grinding raw materials is arranged on one side of the heating cylinder, a first air bellow is arranged on the outer side of the feeding assembly in a communicating mode, a cylinder cover used for opening and closing the heating cylinder is arranged on the other side of the heating cylinder, and a second air bellow is arranged on the other side of the heating cylinder. A second air bellow is arranged above the barrel cover, a cooling box is fixedly arranged on one side of the heating barrel, an exhaust pipe is arranged on the second air bellow in a communicating mode, the free end of the exhaust pipe penetrates through the cooling box and then is communicated with the first air bellow, and a drainage pipe is further arranged at the bottom of the exhaust pipe in a communicating mode. Through the first air bellow, the second air bellow and the exhaust pipe, hot air in the heating cylinder is circulated, loss and waste of heat energy are reduced, meanwhile, through the cooling box and the drainage pipe, when gas passing through the cooling box in the exhaust pipe is changed into dry gas from high-temperature and high-humidity gas, the purpose of rapid drying is achieved.

The present disclosure relates to a method and system for dechlorination of waste plastic oil, the method comprising: allowing waste plastic oil and light oil to enter a first reactor respectively, and contacting with a first catalyst for dechlorination reaction to obtain a first mixed material; allowing the first mixed material and an optional heavy oil raw material to enter a second reactor, and contacting with a second catalyst for catalytic cracking reaction to obtain a second mixed material; allowing the second mixed material to enter a first separation device for first separation to obtain a catalyst to be produced and reaction oil and gas; allowing the reaction oil and gas to enter a second separation device for second separation to obtain dry gas, liquefied gas, gasoline fraction, light diesel fraction and heavy oil fraction; allowing the light diesel fraction to enter a hydrogenation device and contact with a hydrogenation catalyst for hydrogenation reaction to obtain hydrogenated light diesel; allowing the hydrogenated light diesel to return to the first reactor as light oil. Simplify the process flow, reduce capital investment and improve resource utilization effect.

The invention relates to an installation (1) for recovering CO2 contained in a feed gas stream (FG) containing at least 10 ppm NOX, 10% by volume to 50% by volume CO2, N2, water and O2, at a minimum concentration of 0.1 mol%, where NOX contains NO and NO2, the installation comprising: - a compression assembly (2) arranged to compress the feed gas stream, - a drying space (8), preferably placed downstream of the compression assembly, for drying the feed gas stream passed by the compression assembly to obtain a dry gas stream (FGS), - an adsorption treatment unit (4) comprising at least one adsorbent (9) selected to promote the oxidation of NO to NO2, the drying space (8) belonging to a dryer (3) placed upstream of the treatment unit (4), the treatment unit (4) being arranged to treat the dry gas stream coming from the dryer with the purpose of generating a gas stream enriched in CO2.