Cleaning device for flue gases produced during domestic wastes combustion
FIELD: machine building.
SUBSTANCE: device contains rotary adsorber connected with transit gas duct, the adsorbed is made out of cylindrical casing with lids, branch pipes for flue gases input and output, inside it rotor with radial cells is installed, it is filled with adsorbent - granulated blast-furnace slag. At that the rotary adsorber is connected with the transit gas duct via the heat exchanger with cone tray, it is cooled by cooling medium, the rotary adsorber lid is made in form of two half-cone lids with nozzles for flushing water spraying and output of cleaned flue gases, the bottom is made in form of two half-cone bottoms with nozzles for flushing water output and input of cooled flue gases, the radial cells of rotor are filled with two layers of adsorbents A1 and A2 with height H1 and H2, respectively, at that the top layer A1 includes pumice granules of metallurgic slags with basicity factor M > 1, diameter from 20 to 40 mm, and bottom layer A2 is chips of active anthracite with same diameter of particles.
EFFECT: increased economic and ecologic efficiency of cleaning of flue gases produced by domestic wastes combustion.
The invention relates to the protection of the environment and can be used for cleaning flue gases derived from the incineration of municipal waste.
A known system for heating the air leaving gases with simultaneous cleaning of the latter, comprising a rotary air preheater, consisting of boxes, equipped with nozzles of the input and output of flue gases and air, rotor, filled with nozzle (gasket), and the device for purification of flue gases from nitrogen oxides and sulfur, in the form of disc rotors, partially submerged in a bath of absorption solution and placed on a course of movement of the gas for the heater [ed.St. The USSR №1041808, Μl4F23L 15/02, 1983].
The main disadvantages of the system of air heating is the complexity and bulkiness of the equipment additional cleaning devices, the impossibility of utilization of unburned fuel residues and WITH that reduces the economic and environmental efficiency of the plant.
Closest to the proposed invention is an integrated rotary regenerative air heater (adsorber), including the box, equipped with nozzles of the input and output of flue gases and air, in which is placed a rotor with radial cells, each of which consists of located in the direction of motion of the flue gases adjacent to �warm side of the accumulation section, filled gasket made of heat-absorptive material (metal sheets, refractory bricks, Raschig rings, etc.) and adjacent to the cold side of the cleaning section consisting of a container with a perforated bottom, in which are placed the granules of pumice made from basic slag (adsorbent) with the module basicity M>1 in diameter from 20 to 40 mm, and the duct connected to the cold side of the gas compartment with the outlet nozzle of the flue gases through the expander, provided with a conical bottom and splash protector [RF patent №2494313, IPC F23L 15/02, 2013].
The main disadvantage of the known rotary regenerative air heater is the impossibility of cleaning the adsorbent of pollutants in flue gases generated from burning of household waste and deposited it in the process, resulting in the efficiency of purification of flue gases from harmful impurities decreases sharply.
The technical result for the solution of which the present invention is directed, is to increase economic and environmental efficiency of the device for cleaning flue gases derived from the incineration of municipal waste.
The technical result is achieved in that the device for cleaning flue gases derived from the incineration of municipal waste, contains connected in the course Dimova� gas transit gas duct heat exchanger with conical pan cooled refrigerant (water or outside air), and the rotary adsorber consisting of a cylindrical body, the cover of which is made in the form of two semiconic caps with nozzles spray rinse water and the release of treated flue gas, the bottom is made in the form of two semiconic bottoms from the nozzles of the wash water outlet and inlet of the cooled flue gases in the body of the rotary adsorber is placed a rotor with radial cells, each of which are filled with two layers of adsorbents A1 and A2 height H1 and H2 respectively, with the upper layer A1 represents granules of pumice slag with the module basicity M>1 diameter from 20 to 40 mm, and the lower layer A2 is a crumb of active charcoal with a similar diameter of the particles.
Device for cleaning flue gases derived from the burning of household waste is shown in Fig. 1-4, where Fig. 1 shows a diagram of the device of Fig. 2, 3. 4 - General view and cross sections of the rotary adsorber.
Device for cleaning flue gases generated from burning of household waste, includes United along the flue gas transit flue I, the exchanger II with conical pan, cooled by the refrigerant (water or outside air), and the rotary adsorber III (drive shown) consisting of a cylindrical body 1, the lid Kotor�th in the form of two semiconic covers 2 and 3 with the nozzles spray rinse water 4 and output the cleaned flue gases 5, respectively, the hull is made in the form of two semiconic bottoms 6 and 7 with the nozzles of the wash water outlet 8 and the inlet of the cooled flue gas 9 in the housing 1 of the rotary adsorber III placed the rotor 10 with radial cells 11, each of which are filled with two layers of adsorbents A1 and A2 height H1 and H2 respectively, with the upper layer A1 represents granules of pumice slag with the module basicity M>1 in diameter from 20 to 40 mm, and the lower layer A2 is a crumb of active charcoal with a similar diameter of the particles.
The proposed device operates as follows. The flue gases of boiler unit (Fig.1-4 not shown) from the drop flue I with a temperature of 120-150°To enter the heat exchanger II, which is cooled by the refrigerant with outdoor air or mains water) to a final temperature of 90 to 100°With, resulting in them condenses part of the water vapor and other components that form the condensate flowing down, and then cooled flue gases are fed into the rotary adsorber III. In the heat exchanger II refrigerant perceives the heat of the flue gases, resulting in this heat can be used for various purposes. The rotary adsorber III cooled flue gases from semiconic bottom 7 with the rotation of the rotor 10 are distributed to the cells 11, a layer of the H2 adsorbed�the A2 filled with crumbs of active charcoal, which is used for adsorption of CO, chlorine compounds and organic contaminants (polycyclic aromatic compounds, etc.), then proceed to layer N1 of the adsorbent A2, filled with granules of pumice 8 diameter from 20 to 40 mm, made of basic slag (diameter of granules and crumbs anthracite assigned condition for minimum aerodynamic resistance of the cells 11 and the range of sizes of pellets metallurgical pumice). Baby active anthracite is a fairly durable substance that consists of many different organic compounds that are sorbed WITH, chlorides and organic compounds present in flue gases from the conditions of affinity for him. At the same time, the active charcoal is safe from the sanitary point of view the substance that proved its use as a filtering media for water purification [RF patent №2177906, 2002]. Pellets metallurgical pumice represent a highly porous material with a mechanically stable structure (resistance to compression of up to 2.7 MPa), consisting of calcium oxide, silicon oxide, aluminum oxide and partly of magnesium oxide (CaO, SiO2Al2O3, MnO) c module basicity M>1 and high value of coefficient of heat capacity [Building mate�ialy. Guide. Edited by Boldyreva, A. S. and others - M.: Stroyed.,1989, p. 423; Domotel A. K. Construction materials. - M.: Higher. school, 1989, p. 163]. The high value of the modulus gives the basicity pellets metallurgical pumice basic properties, allowing to adsorb on the surface of a substance having acid properties, which include many impurities in flue gases generated from burning of household waste (acids, amines, ammonia, NOx, SOx, CO, chlorine compounds, etc.). In addition, based on their composition of metallurgical slag resistant to the corrosive effect of the acidic components of the flue gases, widely available and relatively cheap. Flue gases, moving from bottom to top through the slag granules, which are also able to accumulate heat at the same time cool with the further condensation of water vapor by condensation, penetrating into the pores of the granules of the adsorbent, in which due to the previous cycle remaining drops of acidic condensate. Adsorbed components (e.g., oxides of nitrogen and sulfur, chlorides) in the pores of the granules have high reactivity, due to their interaction with the surface of the adsorbent granules of slag pumice [Nenitzescu K. General chemistry - M.: Mir, 1968, p. 298], therefore, are oxidized with oxygen at a rate greater than in the gas phase, with the formation of lay�rastvorimykh in water NO 2and SO3that, in turn, interact with drops of water to form the corresponding acid HNO3, H2SO4and Cl that accumulate in the pores of the adsorbent is granulated slag, after which the cleaned and cooled flue gases with a temperature of 50-60°With using semiconic the cover 3 and the nozzle 5 is directed into the chimney (Fig. 1-4 not shown) and then discharged into the atmosphere. At the same time the cell 11 with saturated adsorbents A1 and A2 as a result of rotation of the rotor 10 is received in the compartment semiconic cover 2, where the nozzle 4 of the cell 11 is sprayed with the rinsing water, which absorbs the water-soluble components (acids, amines, ammonia, etc.) present in it. A saturated wash water and condensate from the heat exchanger II is removed for further processing.
The heights H1 and H2 of the adsorbents A1 and A2, the flow rate of washing water (regeneration of adsorbents) is determined empirically.
Thus, the use of adsorption process for purification of flue gases generated from burning of household waste, which contain extremely diverse and dangerous range of contaminants, cheap and available adsorbents - aggregate active charcoal and granulated blast furnace slag in a rotary adsorber and removing these impurities from the adsorbent by washing with water allows Powys�th economic and environmental efficiency of the proposed device.
Device for cleaning flue gases derived from the incineration of municipal waste containing connected with transit flue rotary adsorber consisting of a cylindrical body with end caps, nozzles inlet and outlet flue gases, which is placed inside the rotor with a radial cells, filled with adsorbent is granulated blast furnace slag, characterized in that the rotary adsorber is connected to a transit duct through the heat exchanger with conical pan, cooled by the refrigerant (water or outside air), the cover of the rotary adsorber in the form of two semiconic caps with nozzles spray rinse water and the release of treated flue gas, the hull is made in the form of two semiconic bottoms from the nozzles of the wash water outlet and inlet of the cooled flue gases, the radial cell of the rotor are filled with two layers of adsorbents A1 and A2 height H1 and H2 respectively, with the upper layer A1 represents granules of pumice slag with the module basicity M>1 in diameter from 20 to 40 mm, and the lower layer A2 is a crumb of active charcoal with the same particle diameter.
SUBSTANCE: invention is based on burning of combustible substance and generation of high-temperature combustion gases, magnetic conversion of high-temperature combustion gases into primary electricity, conversion of thermal energy of the residual low-temperature gases cooled during magnetic conversion into secondary electricity in the thermal power unit and the subsequent summation of primary and secondary electricity in a distributive station.
EFFECT: simplification of electricity generation, increase of coefficient of conversion of potential energy of initial fuel into electric energy and reliability and resource of operation of thermal power units.
8 cl, 4 dwg
SUBSTANCE: multi-channel deflector comprises a vent-pipe equipped in the upper part with a diffuser outside which a shell is fixed, and a cone-shaped hood mounted above the diffuser, made in the form of two conical discs coupled with identical bases - the upper and lower truncated. The construction of the device comprises a multi-deflector partition placed in the upper part of the diffuser, comprising a plurality of equal-sized protruding conical air channels directed towards the hood, and between the multi-deflector partition and a small base of the lower truncated cone of the hood an open channel is formed for the passage of the outer and removal of contaminated air from the exhaust pipe.
EFFECT: providing high efficiency and a wide range of use.
FIELD: power engineering.
SUBSTANCE: heat recovery boiler is characterised by availability to a reactor, to the lower part of which two burners adjoin, and to the side surface of the reactor a horizontal flue adjoins for supply of smoke gases, at the same time smoke gases, which are discharged from the horizontal flue of smoke gases supply, arrive into the zone of active combustion of the reactor, which is arranged in its lower part, a system of heat recovery for smoke gases, which arrive into the reactor of the heat recovery boiler, a nozzle of smoke gases discharge from the reactor, which comprises an additional system of smoke gases heat recovery and at least one smoke exhaust. The heat recovery boiler is also characterised by the fact that it additionally comprises a distributor of smoke gases flow, which arrive from the horizontal flue into the reactor of the heat recovery boiler, at the same time the specified distributor is arranged in the specified zone of active combustion oppositely to the zone of adjacency of the specified horizontal flue to the reactor, as a result of which two mutually crossing vortex flows are generated in the reactor, a circular header, which adjoins the horizontal flue of smoke gases supply and comprises additional nozzles for supply of smoke gases into the reactor, which adjoining to the side surface of the reactor so that smoke gases arrive from the circular header into the zone of active combustion of the reactor along with the movement of both specified vortex flows.
EFFECT: heat recovery boiler is compact and simple to make and at the same time efficient to decontaminate smoke gases.
5 cl, 5 dwg
SUBSTANCE: method of burning coal with reduction of the amount of mercury emitted into the atmosphere is characterised by adding to the coal a liquid sorbing composition which contains calcium bromide, and a solid composition which contains aluminosilicate material and at least one powder which contains calcium, selected from a group comprising portland cement, cement dust, limestone dust, calcium oxide, calcium hydroxide and calcium carbonate, feeding the coal into a coal-burning furnace, burning the coal containing a sorbent in the furnace to form ash and gaseous combustion products, measuring the level of content of mercury in the gaseous combustion products and controlling the amount of the sorbing composition added to the coal depending on the measured mercury content. Aqueous calcium bromide is added to the coal by spraying. The liquid sorbing composition consists of 20-60 wt % calcium bromide. The liquid sorbing composition additionally includes a compound selected from a group comprising a nitrate compound, a nitrite compound and a combination of a nitrate and a nitrite compound. The aluminosilicate material contains montmorillonite and/or kaolin. Mercury content is continuously monitored. Samples are periodically collected and mercury content is measured.
EFFECT: invention enables to reduce mercury emissions when burning fuel.
SUBSTANCE: hot, unpurified combustion gases from boilers are supplied through input gas duct into filled with water precipitation chamber, round the partition and through water layer are directed into output gas duct. Auxiliary reservoir with circulation pump is installed for supporting constant water level. In lower part of precipitation chamber located is tubular coil, by which return water, supplied from heat supply network. Successively with precipitation chamber in direction of gas movement into gas tract included is smoke exhauster, made in form of tube chamber, inside which shaft with blades, brought into rotation by low-speed electric drive, rotates. Rotating blades are lowered below water level and create dispersed moisture for additional purification of exhaust gases.
EFFECT: invention makes it possible to emit into atmosphere only purified and cooled smoke gases of boiler room.
FIELD: machine building.
SUBSTANCE: proposed device comprises filtration element and moving packing working in fluidised bed mode. Set of elements arranged along gas flow comprises cyclone, apparatus with circulating fluidised layer and return cyclone, filtration ceramic element. Disperse particles with capillary-porous structure and size, at least, one order larger than that of ash particles fed with gases from cyclone into apparatus are fluidised. Gas velocity in said apparatus is defined subject to dancing of said particles, their capillary-porous structure being filled with ash particles so that their averaged bulk density makes, at least, 50% of ash density. Particles capillary-porous structure filled with ash particles are drained from layer bottom while these new particle are added to the layer.
EFFECT: improved design.
FIELD: power industry.
SUBSTANCE: stove flue gas afterburning device includes housing, furnace, stack, superheated steam source and afterburner chamber of flue gas in the form of pipe, which is located in furnace and one end of which is connected to stack, and the other end is connected to vortex forming device and air pipeline. Superheated steam source is connected to flue gas afterburner by means of pipeline equipped with steam sprayer(s) installed inside tube of afterburner chamber. Superheated steam source is made in the form of chamber with heat storage feeding device located above furnace and equipped with moisture supplying device and outlet pipe and includes additional vortex shaping device installed on the edge of outlet pipe located in furnace or above furnace so that steam can leave it through the hole made in it, and sprayer(s) to pipe of flue gas afterburner chamber. Flue gas afterburning method is described in the proposed device.
EFFECT: higher heat removal of stove.
5 cl, 7 dwg
FIELD: machine building.
SUBSTANCE: installation for solid waste thermal processing includes chamber furnace consisting of combustion chamber with hopper for waste charge and with output for ash removal, of after-burning chamber, of cyclone chamber connected with heat exchanger via gas duct, of system of fume cleaning consisting of successively connected scrubber made in form of Ventury tube, of receiving bath, of packed absorber, of separator and smoke exhaust. The installation is equipped with an additional second cyclone chamber positioned next to the first one. Removable pyrolysis chambers are coaxially installed in both cyclone chambers; each pyrolysis chamber has a channel of supply of generated pyrolysis gas into the after-burning chamber. In an upper part the cyclone chambers have tangential input of fume of the after-burning chambers uniformly streaming the removable chambers of pyrolysis. The after-burning chamber is equipped with perforated tubes of oxygen supply.
EFFECT: processing solid waste containing polymer materials at reduced noxious exhausts into atmosphere and raised efficiency of installation.
1 cl, 2 dwg
SUBSTANCE: smoke from the coke-oven battery 1 are taken to the rectification circuit 6 by the smoke exhauster equipped with the directing mechanism 9. In the rectification circuit 6 the smoke goes to the utiliser boiler 7. After the utiliser boiler 7 one part of the rectified smoke is taken to the chimney flue 3 through the adjusting valve 10, and the other part of the cleaned smoke is taken to the gas pipe 13 where the smoke controller 14 is installed. From the gas pipe 13 the smoke goes to the horizontal flue 4 in front of the gate valve 5 during smoke traveling. The part of the rectified smoke delivered to the horizontal flue 4 from the gas pipe 13 is taken through the gate valve 5 to the chimney flue 3, and the other part of the rectified smoke is taken to the rectification circuit 6 of the smoke by the opposite flow through the zone where horizontal flue 4 abuts on the coke furnaces 2.
EFFECT: this invention allows to optimise the hydraulic operation mode of the coke furnace, receive high degree of rectification of the smoke from the coke furnace and to achieve high efficiency of work of the utiliser boiler.
2 tbl, 1 dwg
SUBSTANCE: invention concerns thermal power industry, particularly heat supply, and can be applied in heat and condensate treatment and utilisation of fume gas generated by thermal generators of independent heat supply systems. Multisection treatment and utilisation unit for fume gas of heat generator in independent heat supply system includes input gas collector with bottom holes featuring sectional sliding gates, to which sections are attached. Sections include ridged vertical cooling and condensation columns separated by air gaps and connected to each other and to treatment column with removable sideboard by collectors. Removable perforated flanged chutes are installed in checkerboard order inside treatment column and filled with hydrated lime (Ca(OH2)) chips. Treatment column features conical bottom and removable sideboard, column top is connected to gas outlet collector and to funnel with deflector, and column bottom is connected to purified condensate collector by a slit. Columns of all sections are placed inside housing covered at opposite ends by removable cap with ventilator and by cap with hot air pipe.
EFFECT: improved economical and environmental efficiency of multisection unit of fume gas treatment and utilisation.
FIELD: machine building.
SUBSTANCE: desalination multistage adiabatic plant additionally comprises a thermosoftener (52) which serves for the generation of sludge particles in the feed water heated in a steam heater (26) and taken from a pipeline to supply the feed water to the inlet of a multi-stage adiabatic evaporator (4), as well as a two-section feed water receiver (76) to reduce supersaturation in the sea water being evaporated due to the usage of sludge particles as "seed crystals" in the supersaturated solution volume. The thermosoftener (52) comprises a perforated membrane (56) built-in in the casing (53) under the cover, a dome-shaped horizontal partition (61) installed with a gap in respect to the inner casing wall, vertical cylindrical shells, a manifold to withdraw the vapour (62) under the dome-shaped partition, a branch pipe for water withdrawal is united with the sludge particle removal and is mounted in the casing bottom, and the branch pipe for steam supply is built-in in the casing cover.
EFFECT: lower rate of scale formation on working surfaces of the plant elements.
2 cl, 9 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to steam fractions separators. Steam separator comprises vessel for boiling fluid with top section provided with circular horizontal ring with inner groove and hole for condensate. Several identical elements consist of vertical tubes with horizontal rings arranged at their lower part and like rings at upper part provided with grooves with holed for condensate draining. Note here that said elements are fitted one on the other while the last one at upper part is plugged.
EFFECT: higher efficiency.
2 cl, 1 dwg
SUBSTANCE: claimed invention relates to a method of obtaining a catalyst for the selective catalytic reduction of NOx in a flue gas, containing an alkali metal, with the application of ammonia as the reducing agent, with the catalyst containing a surface with catalytically active centres of Bronsted or Lewis acids, with the surface being, at least, partially covered with a coating, containing, at least, one metal oxide, and the said method includes the supply of a carrier, impregnation of the carrier with the first water solution, containing a vanadium component, drying and calcination of the impregnated carrier, covering the impregnated carrier with the second water suspension, containing, at least, one oxide of a basic metal, representing MgO, and drying and calcination of the coated carrier for the second time.
EFFECT: obtaining the catalyst with an improved resistance to poisoning with alkali metals.
7 cl, 6 dwg, 4 ex
SUBSTANCE: formulation of a gas desulphurisation adsorbent contains two components, the first of which is a natural material and contains 47-87 wt % of manganese dioxide, whereas the second component represents expanded vermiculite produced by the thermal treatment of natural slate in an amount of 1-30 wt %. The first component is specified in ferro-manganese nodules, and/or manganese peroxide, and/or cryptomelane.
EFFECT: invention enables improving consumption parameters, extending the range of using the adsorbent in the area of gas flow purification with the low acceptable pressure difference and wet gas flows, eliminating the dust-like particle entrapment by the purified gas flow, as well as improving technical-and-economic indexes of gas desulphurisation.
3 cl, 1 tbl, 12 ex
SUBSTANCE: invention relates to a method of purifying a gas mixture from hydrogen and/or isotopes thereof. A method of purifying a gas mixture from hydrogen and/or isotopes thereof, which includes oxidising hydrogen with oxygen in the presence of a palladium-containing catalyst, according to the invention, includes generating a hydrogen stream through diffusion from the gas mixture through an optimised adsorbent layer which protects the palladium-containing catalyst from components of the gas mixture, wherein the method employs an oxygen-containing peroxide compound of an alkali metal which absorbs water formed on the palladium-containing catalyst and distributed between the adsorbent and the oxygen-containing peroxide compound of an alkali metal; during absorption, oxygen is obtained, which compensates for the loss thereof from the gas mixture during oxidation of hydrogen.
EFFECT: high efficiency of extracting hydrogen from a gaseous mixture in closed volumes owing to optimisation of the diffusion hydrogen stream from the gas mixture and oxidation thereof with oxygen while exposing the formed water to an oxygen-extracting compound and compensating for loss of oxygen during oxidation of hydrogen.
3 cl, 9 ex
FIELD: oil-and-gas industry.
SUBSTANCE: zeolite recovery gas treatment unit contains an absorber and a desorber of the unit of amine treatment of zeolite recovery gases from hydrogen sulphide with obtaining a marketable hydrogen sulphide used as raw materials for Claus process as a part of element sulphur production, an absorber and a desorber of the unit of alkaline treatment of zeolite recovery gases from mercaptan with separation of the latter in the desorber, unit of adsorptive drying and fractionation of mercaptan with obtaining of methylmercaptan sent to the unit for obtaining of methyl disulphide, and mix of ethyl mercaptan, propyl mercaptan and butyl mercaptan with separation in the fractionation unit of marketable ethyl mercaptan and mixes of propyl mercaptan and butyl mercaptan, also absorbers and desorber are fitted with nozzles of cross-flow type.
EFFECT: invention allows simultaneously to dry and purify hydrocarbon gas or gas condensate from sulphur-containing substances and to obtain a wide range of final products.
7 cl, 3 dwg
SUBSTANCE: invention relates to apparatus for separating volatile substances from complex mixtures, primarily nonvolatile, of components, which include any discharges of biological objects (humans, animals, insects etc), including sweat and fat traces, urine, blood etc, for further analysis using biological, chemical and physical-chemical methods. For analysis, solid CO2 (dry ice) or gaseous CO2 is released inside a container with a source of volatile substances, and a substrate of adsorbent material is worn on the cylindrical part of the chamber.
EFFECT: invention simplifies the apparatus, ensures easy operation thereof and enables to obtain a larger amount of the volatile substance.
FIELD: process engineering.
SUBSTANCE: invention relates to fanning of industrial structures and can be used for air cleaning of harmful gases and aerosols. Proposed method consists in evacuation of fouled air via one or several air intakes, multistep cleaning of said fouled air of aerosols, fine cleaning of aerosols by sorption bed and collection of solid particles. Mass concentration of aerosols is measured before and after cleaning of fouled air. Note here that fouled air evacuation is initiated with the help of gas photo ionization pickup arranged at every fouled air intake. Said pickup sends the signal to ACS to start air evacuation blower drive motor. Note here that pre-cleaning of aerosols is conducted by electromagnetic separator and fibrous filter. Note also that at fine cleaning, said sorption bed is composed of natural zeolite-bearing rock treated by sulphuric acid flushed with distilled water and calcined at 340-360°C for 5-6 hours.
EFFECT: higher quality of cleaning.
2 cl, 1 dwg, 1 tbl
FIELD: oil and gas industry.
SUBSTANCE: invention relates to oil industry. The method includes separation of raw stock into distillate and residual fractions by delivery of the heated raw stock to evaporator under pressure of 10-15 atm. Spraying of heavy crude oil and/or natural bitumen is made through a nozzle (4) in bottom-upward direction.
EFFECT: invention allows increased output of distillate fractions.
2 tbl, 2 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to fluid treatment. This process comprises evaporation of fluid mix to get the steam and depleted fluid flow. Steam is fed to salt solution suitable for exothermal absorption of one or more components from said steam while heat is withdrawn to get at least one heat flow and salt solution flow enriched with one or more components. Withdrawn heat is fed for evaporation. Heat transfer is related with working fluid conversion from gas into fluid. Heat withdrawal comprises said conversion. Fluid flows under one or more effects: gravity, convection and capillarity. Fluid in gaseous state flows under one or more effects: diffusion and convection.
EFFECT: high quality of separation.
25 cl, 9 dwg, 4 tbl
FIELD: separating materials by evaporation.
SUBSTANCE: method comprises evaporating in several stages. In the preliminary stage, the aluminate solution is evaporated by the secondary steam supplied from the final stage and heated up to 20-60oC before supplying to the intermediate stage. In the intermediate stage, the solution is evaporated by live steam. Before supplying to the final stage, the solution is mixed with the circulating solution and is evaporated by the secondary steam supplied from the intermediated stage. The device comprises evaporating apparatus with vertical heat exchanging pipes. The end stage is connected with pipelines for supply of initial aluminate solution and secondary steam from the second housing and pipe line for discharging evaporated solution which is connected with the first housing and provided with a heater. The first housing is in communication with the second housing provided with circulation circuit and chamber for boiling of solution arranged above the heat exchanging pipes. The first housing is provided with circulation pipe and external chamber for boiling of solution.
EFFECT: enhanced efficiency.
2 cl, 2 dwg, 2 ex