CN104941380A - Improved smog eliminator operation for quenching effluent - Google Patents
Improved smog eliminator operation for quenching effluent Download PDFInfo
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- CN104941380A CN104941380A CN201410124775.XA CN201410124775A CN104941380A CN 104941380 A CN104941380 A CN 104941380A CN 201410124775 A CN201410124775 A CN 201410124775A CN 104941380 A CN104941380 A CN 104941380A
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- water
- smoke remover
- nozzle
- quenching
- spray
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
- C07C253/34—Separation; Purification
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
Abstract
The invention relates to improved smog eliminator operation for quenching effluent. A device comprises a quenching container, wherein the quenching container provides quenching air streams, and a smog eliminator receives the quenching air streams, and comprises a surface of the smog eliminator; the surface of the smog eliminator removes smog from quenched effluent gas. The smog eliminator comprises a spraying system comprising a nozzle; the nozzle sprays water on the surface of the smog eliminator. The spraying system is effectively used for reducing dirt on the smog eliminator.
Description
Technical field
The disclosure relates to a kind of smoke remover (mist eliminator) operation of improvement of the quenching effluent for the manufacture of acrylonitrile or methacrylonitrile.
Background technology
Known for the manufacture of the various technique of acrylonitrile and methacrylonitrile and system, see such as United States Patent(USP) Nos. 3,936,360; 3,433,822; 3,399,120; With 3,535,849.Propylene, ammonia and oxygen (as composition of air) are supplied to acrylonitrile reactor, and acrylonitrile reactor comprises catalyst and operates as fluid bed.Conventional practice operates reactor under the condition of excess ammonia in charging for the propylene amount being supplied to reactor.Due to extreme condition, some in extra ammonia can be combined with propylene at it burnt in the reactor before forming acrylonitrile.Remaining extra ammonia (being commonly referred to " excess ammonia ") leaves reactor in eluting gas.Then, this gas usually travels across cooler and arrives quenching container afterwards, to remove excess ammonia.See such as United States Patent(USP) Nos. 3,936,360; 4,166,008,4,334,965,4,341,535,5,895,635 and 6,793,776.
Traditional handicraft and system for removing excess ammonia have some common factors and a common problem.Traditional handicraft and system attempt to remove excess ammonia as ammonium sulphate usually, and with minimum processing cost reclaim sulfuric acid ammonium.Ammonium sulfate usually uses sulfuric acid to carry out quenching to remove the product of excess ammonia to the effluent stream from acrylonitrile reactor.This causes the common issue of described traditional handicraft in this area and system.In order to minimize ammonium sulfate cost recovery, in the production efficiency of acrylonitrile process, there is inherent loss.Reclaim the acrylonitrile product in effluent stream and remove excess ammonia in an efficient way and propose the technical barrier not obtaining cognition or solution in traditional handicraft in the art and system.
Traditional handicraft and system comprise spraying arranges, scatters in the mode by being designed to remove from effluent stream excess ammonia the aqueous flow comprising acid.The problem causing being produced tiny smog by the mixing of hot gas and cooling fluid is arranged in traditional sprinkling.Traditional handicraft and system have nozzle system usually, and to spread in container by liquid stream, this Vessel Design one-tenth permission steam contacts with liquid stream.This contact generates the smog comprising various composition usually.Some in these compositions comprise the ammonia and ammonium salt that are caused by the acid for removing excess ammonia.If the smog comprising ammonia and ammonium salt does not remove from air-flow, then by running through technique, it lasts till that acrylonitrile vapors changes the stage of liquid stream into.From this point forward, be present in ammonia in smog and will cause the degraded of acrylonitrile and polymerization and the lower operating efficiency causing equipment.
There is the traditional design of smoke remover.Traditional smoke remover is usually designed to the space allowing the little droplet (droplet) in smog to be agglomerated into enough large droplet, to overcome the vapor (steam) velocity for removing in the setter of smog.Once smog is agglomerated into droplet, then there is acrylonitrile and be absorbed into the potential position starting with polymer in liquid to be formed.Once it occurs, then produce dirt, this will finally cause the Pressure Drop increased in the efficiency losses of smoke remover or entrainment separator and/or system again, and the operation of equipment can not be continued again.So equipment must off line, until smoke remover takes out stains or smoke remover material that is new or that remove dirt or structure replace smoke remover material or the structure with dirt.For conventional apparatus and method, the operation of equipment can need within approximately every 6-9 month, stop work continually like that, to remove the smoke remover with dirt or the fouled surfaces changing smoke remover.
Summary of the invention
Therefore, an aspect of the present disclosure be for safety, effectively and there is cost efficiency from the eluting gas of acrylonitrile reactor, remove ammonia design standard is provided.Specifically, the present invention relates to the type of method and the quenching container using in the process to realize expected result.
In an aspect, a kind of device gas being carried out to quenching is provided.In an aspect, this device comprises quenching container, and this quenching container structure becomes to provide quenching air-flow (quenched gas stream), and smoke remover is configured to receive this quenching air-flow.Smoke remover comprises smoke remover surface, and this smoke remover surface structure becomes to remove smog from quenching eluting gas.Smoke remover comprises water sprinkling system, and this water sprinkling system comprises nozzle, and nozzle structure becomes water is sprayed at smoke remover on the surface.Water sprinkling system is formed for the dirt reduced on smoke remover surface effectively.
Of the present disclosure above and other side, feature and advantage become clear by from the following detailed description of the illustrated embodiment of reading by reference to the accompanying drawings.
Accompanying drawing explanation
By reference, the more complete understanding of example embodiment of the present invention and its advantage considers that the following explanation of accompanying drawing obtains, wherein similar label indicates similar feature, and wherein:
Fig. 1 is the schematic flow diagram of the side view according to the water sprinkling system in the quenching container of at least one aspect of the present disclosure;
Fig. 2 is the schematic flow diagram of the side view of smoke remover in the container be separated with according to the quenching container of at least one aspect of the present disclosure;
Fig. 3 illustrates the flow chart of the method according to aspect of the present disclosure.
Detailed description of the invention
In an aspect, provide a kind of device and carry out quenching for the reactor eluting gas comprising acrylonitrile and ammonia.This device comprises quenching container, and this quenching container has Part I and Part II.Part I is positioned at below Part II.The Part I of quenching container comprises the entrance being configured to receive air-flow, and this air-flow comprises acrylonitrile and ammonia.The Part II of quenching container comprises quench liquid sprinkling system, and this quench liquid sprinkling system is configured to receive quench liquid, and wherein, quench liquid comprises acid.Quench liquid sprinkling system comprises nozzle, and nozzle structure becomes to spray quench liquid downwards.Device also comprises smoke remover, and smoke remover is positioned at the downstream of the Part II of quenching container.Smoke remover comprises water sprinkling system.Water sprinkling system is configured to surface water being sprayed to smoke remover, and wherein, the formation of droplet reduces, and the dirt of the correspondence on the surface of smoke remover reduces.
In an aspect, by using timing water spray in the downside of smoke remover or entrainment separator or upstream side, the accumulation of droplet can reduce in such a way, the formation of the dirt on smoke remover surface and polymer is reduced, and can to perform the ongoing operation of quenching container and smoke remover during prolongation.
An object of the present disclosure be for safety, effectively and remove ammonia from the eluting gas of acrylonitrile reactor while there is cost efficiency design standard is provided.Specifically, the smoke remover that the downstream that the present invention relates to quenching in acrylonitrile process equipment or contacting container uses effectively and the apparatus and method of the operation continued.Find that following design feature forms the excellent in performance of smoke remover or coalescer (comprising the smoke remover such as in horizontal tectonics with flap (chevron) type cross section).
No matter the temperature (its scope can from 90 ℉ to the outlet temperature of 200 ℉) of quenching operation how, smoke remover can be used on downstream or the top of quenching container, to remove the minute mist droplet (it comprises a small amount of ammonia of eluting gas from cooling or quenching or ammonium salt) of quench liquid, the eluting gas of this cooling comprises acrylonitrile, acetonitrile and hydrogen cyanide.Selected smoke remover or coalescer can be integrated with quenching container, or freely arrange as the equipment article be separated.
Those skilled in the art will recognize that, according to the disclosure, the demist of any suitable type or coalescence material or structure can be used in smoke remover.Such as, the set of demist or coalescence material or the optional free steel waste pad of structure (steel wool pad), blade and flap type layout formation.In an aspect, smoke remover comprises flap type layout or flap.In an aspect, flap type is arranged or flap comprises the horizontal flaps that the cross section along smoke remover extends.
In an aspect, solid circular cone spray nozzle can be arranged in manifold layout, and wherein solid circular cone spray nozzle and adjacent solid circular cone spray nozzle are evenly spaced apart.In an aspect, solid circular cone spray nozzle can be positioned to approximate 1 to 2 feet of the inlet surface apart from smoke remover.Each solid circular cone spray nozzle can be arranged to allow based on obtainable inlet water pressure from the water of 1 to 2 gallons per minute of nozzles spray (about 3.5 are raised to about 7.75 liters) in size.In an aspect, clean water source can be provided can to increase the weight of the blocking of this operating equipment or any solid of fouling tendency to prevent from adding.Clean water refers to non-process water (non-process water), such as, such as, from the water of municipal water sources.
In an aspect, automatic controller can be configured to allow the interval of opening with uniform intervals during operation to go to the full water pressure (full water pressure) of spray nozzle.Time between the interval of full water pressure can be about 1 to about 30 minutes.In an aspect, the time between the interval of full water pressure can be approximately every 5 minutes to 10 minutes.In an aspect, the scope of the duration of the water spray from nozzle to smoke remover can be about 5 to 600 seconds.In a preferred embodiment, the duration of the water spray from nozzle to smoke remover can be about 30 to 60 seconds.
Those skilled in the art will recognize that, according to the disclosure, clean water will allow any little accumulation rinsing polymer and the quenching water be accumulated in during operation in the surface of smoke remover or on surface to the sprinkling of smoke remover or demister.By removing these dirts, the ongoing operation of smoke remover can realize until during the prolongation of at least five years.By this until during the prolongation of at least five years, the one-tenth of the shutdown tunable for soil cleaning of smoke remover is shut down with the standard care of quenching container and is carried out at same time.This be used for soil cleaning until during the prolongation of at least five years than conventional apparatus and method much longer, conventional apparatus and method need within the every 6-9 of equipment month, to shut down the soil cleaning for smoke remover.
In an aspect, quenching gas flows out the major part contact smoke remover surface of the major part of stream.In this aspect, quenching gas flows out about 95% of stream or more contact smoke remover surface, in one aspect of the method, about 96% or more, in one aspect of the method, about 97% or more, in one aspect of the method, about 98% or more, and in another aspect, about 99% or more.
In an aspect, in water spray at least some contact smoke remover surface in roughly whole.In this aspect, about 95% or more contact smoke remover surface of water spray, in another aspect, about 96% or more, in another aspect, about 97% or more, in one aspect of the method, about 98% or more, and in another aspect, about 99% or more.
The spray angle of solid circular cone spray nozzle between about 30 and 90 degree, by the optimized angle of about 70 degree, can prevent too much departing from of the water spray pattern entering smoke remover.
Apparatus and method of the present disclosure are illustrated in greater detail referring now to accompanying drawing.
Fig. 1 is the schematic flow diagram of the side view according to the water sprinkling system in the quenching container of at least one aspect of the present disclosure.Quenching container 10 can be configured to carry out quenching to quenching reactor effluent 12.Reactor effluent 12 obtains by the direct reaction in the presence of a catalyst in conversion zone (not shown) of propane or the oxygen containing gas of propylene, ammonia and bag.Reactor effluent 12 is delivered to quenching container 10 via conduit 14, wherein, the reactor eluting gas of heat is cooled by the contact with aqueous flow (aqueous stream) or quench liquid 16, and aqueous flow or quench liquid 16 enter quenching container 10 via pipeline 18,20,22 and 24.The cooling eluting gas comprising acrylonitrile (comprising accessory substance, such as acetonitrile, hydrogen cyanide and impurity) then can travel across entrainment or smoke remover 26, and then advances to absorbing column (not shown).
As shown in Figure 1, quenching container 10 comprises Part I 28 and Part II 30, and wherein, Part I 28 is positioned at below Part II 30.The Part I 28 of quenching container 10 comprises entrance 14, and entrance 14 is configured to receive air-flow or reactor effluent 12, and wherein, air-flow or reactor effluent 12 comprise acrylonitrile and ammonia.The Part II 30 of quenching container 10 comprises multistage sprinkling system 34, and multistage sprinkling system 34 is configured to receive aqueous flow or quench liquid 16, and wherein, aqueous flow or quench liquid 16 comprise acid 36.Acid 36 can be added into quench liquid 16 at joint (juncture) 40 place via pipeline 38.Acid 36 can be any suitable acid, such as sulfuric acid (sulfuric acid of such as 98%).Quench liquid 16 comprises the effluent that pipeline 44 is also passed in the bottom 42 leaving quenching container 10.Water is added into quenching container 10 by entrance 48 via pipeline 46, or quench liquid 16 can be added into or other in the liquid recirculation loops that formed by stream 17,44 and 65 local.Quench liquid 16 utilizes pump 50 circulated by pipeline 44 and get back to pipeline 18,20,22 and 24.Purge flow (purge stream) 67 can be used as a part for the liquid efflunent left through pipeline 44 and is removed, to keep the liquid level of relative constancy in the bottom of quenching container, thus offsets the liquid added via pipeline 38 and 46.Purge flow 67 removes the neutralization reaction product (such as ammonium sulfate) of formation, and is of value to the accumulation preventing unwanted product in liquid recirculation loops (such as corrosion product and heavy organic matter material).The effluent leaving the bottom 42 of quenching container 10 can be extracted out from pipeline 44 at siphon point 52 place.
Multistage sprinkling system 34 at least comprise corresponding with pipeline 18 first spray rod 54 and with pipeline 20 corresponding second sprays excellent 56.As shown in Figure 1, multistage sprinkling system 34 also comprises the sprinkling rod 58 corresponding with pipeline 22 and the sprinkling rod 56 corresponding with pipeline 24.Spray rod 54,56,58 and 60 roughly cross over the diameter 62 of quenching container 10 and extend.As shown in the figure, spray rod 54 and be positioned at below sprinkling rod 56, and be roughly parallel to sprinkling rod 56.Spray rod 58 to be positioned at above sprinkling rod 56, and below sprinkling rod 60.Spray rod 58 and be roughly parallel to sprinkling rod 60.
Spray rod 54,56,58 and 60 and can comprise a succession of spray arm (Fig. 1 is not shown) separately.Spray arm roughly can be crossed over the diameter of the quenching container 10 of the diameter 62 being approximately perpendicular to quenching container 10 or string and extend.Each spray arm can comprise two or more extensions (Fig. 1 is not shown).Each extension can be approximately perpendicular to its corresponding spray arm and extend.Each extension can comprise spray nozzle, and spray nozzle is in its corresponding extension end, and wherein, each spray nozzle downwards.In an aspect, each nozzle of sprinkling system 34 can be configured to the hollow cone spraying of spraying quench liquid 16 downwards, and wherein, the spraying of each hollow cone limits from the equidistant center of hollow cone spraying wall.In an aspect, each nozzle spraying rod can be spaced apart, so that a part of spraying from the first the first hollow cone spraying the quench liquid of the first jet of rod is overlapping with the part that the second hollow cone spraying the quench liquid of the second nozzle of rod from first is sprayed, to provide the overlap of quench liquid, this overlap has overlapping center.
The cooling eluting gas comprising acrylonitrile (comprising accessory substance, such as acetonitrile, hydrogen cyanide and impurity) then can rise to smoke remover 26 from multistage sprinkling system 34 together with smog.Smoke remover 26 is configured to remove smog from cooling eluting gas.Smoke remover 26 is positioned at the downstream of the Part II 30 of quenching container 10.Smoke remover 26 can comprise water sprinkling system 100.Water sprinkling system 100 is configured to the surface 102 water being sprayed to smoke remover 26, and wherein, the accumulation of droplet reduces, and the dirt of correspondence on the surface 102 of smoke remover 26 is formed and polymer forms minimizing.As shown in Figure 1, water sprinkling system 100 comprises water pipeline 104, and water pipeline 104 supplies feedwater through entrance 108 to sprinkling rod 106.
As used in this article, " smog " represents the suspension of the liquid droplet in gas.In an aspect, the scope of droplet size can be about 0.1 to about 1000 microns, in another aspect, about 0.1 to about 50 microns, in another aspect, about 0.1 to about 15 microns, in another aspect, about 1 to about 1000 microns, in another aspect, about 1 to about 500 microns, in another aspect, about 1 to about 100 microns, in another aspect, about 1 to about 50 microns, in another aspect, about 1 to about 15 microns, in another aspect, about 5 to about 1000 microns, in another aspect, about 5 to about 500 microns, in another aspect, about 5 to about 100 microns, in another aspect, about 5 to about 50 microns, in another aspect, about 5 to about 15 microns, in another aspect, about 10 to about 1000 microns, in another aspect, about 10 to about 500 microns, in another aspect, about 10 to about 100 microns, and in another aspect, about 10 to about 15 microns.
Spray rod 106 and can comprise a series of spray arm (Fig. 1 is not shown).The spray arm spraying rod 106 roughly can be crossed over the diameter of the quenching container 10 of the diameter 62 being approximately perpendicular to quenching container 10 or string and extend.Each spray arm spraying rod 106 can comprise two or more extensions (Fig. 1 is not shown).Each extension can be approximately perpendicular to its corresponding spray arm and extend.Each extension can comprise spray nozzle, and spray nozzle is in its corresponding extension end, and wherein, each spray nozzle is towards top.In an aspect, each nozzle of water sprinkling system 100 can be configured to the solid circular cone spraying of upwards spray water, and wherein, each solid circular cone spraying limits from the equidistant center of solid circular cone spraying wall.In an aspect, the nozzle spraying rod 106 can be spaced apart, so that overlapping with the part that the second solid circular cone of water from the second nozzle spraying excellent 106 is sprayed from the part of the first solid circular cone spraying of water for the first jet spraying rod 106, to provide the overlap of water, this overlap has overlapping center.
Control or timing from the upwards spraying 110 of the nozzle to the water on the surface 102 of smoke remover 26 that spray rod 106 by automatic controller or timer 112.Controller 112 can carry out the opening and closing of control valve 114 via communication line 116.As shown in Figure 1, smoke remover 26 can comprise the flap arrangements or horizontal flaps 118 with surface 102.Flap arrangements or horizontal flaps 118 extend along the cross section of smoke remover 26.The nozzle 120 spraying rod 106 is configured to the upwards spraying 110 (spraying preferably as solid circular cone) of water to be provided to surface 102, thus prevents or the formation of the dirt that reduces on surface 102 and polymer.Although as previously mentioned, flap arrangements 118 shown in Figure 1, the set of demist or coalescence material or the optional free steel waste pad of structure, blade and flap type layout formation.
The quenching or the cooling eluting gas that comprise acrylonitrile (comprising accessory substance, such as acetonitrile, hydrogen cyanide and impurity) can be used as air-flow 13 and leave quenching container 10 after travelling across smoke remover 26.Air-flow 13 can travel across conduit 15 to absorbing column (not shown).
In an aspect, controller 11 can be configured to process one or more signal corresponding with recording parameter, and recording parameter is such as the temperature measured by temperature controller (Fig. 1 is not shown).Controller 11 can be configured to determine whether to record parameter higher or lower than predefined parameter scope.Those skilled in the art will recognize that, according to the disclosure, record parameter and can be any suitable parameter useful in the operation of quenching container, the temperature such as measured by the temperature controller of pre-position, or the liquid level measured by the water level controller (Fig. 1 is not shown) in the compartment (boot) 45 of quenching container 10 or flow controller (Fig. 1 is not shown).If controller 11 can be configured to record parameter below or above predefined parameter scope, then adjust the operation of one or more equipment via communication line or radio communication (Fig. 1 is not shown).Such as, controller 11 can be configured to the quantity adjusting the stream being sent to quenching container 10, such as, the stream of the stream of such as reactor effluent 12, (being sent to quenching container 10 by pipeline 46) current and/or quench liquid 16 (comprising the acid 36 transmitted by pipeline 38).Those skilled in the art will recognize that, according to the disclosure, controller 11 can be configured to the operation of control pump 50 and/or the operation of other pump be associated with above-mentioned stream and/or valve, to meet preset range.Those skilled in the art will recognize that, controller 11 can be configured to the operation of control valve 114 or controller 112, and controller 112 can be configured to again the operation of control valve 114.Those skilled in the art will recognize that, controller 11 can be configured to the operation controlling other (multiple) devices, other (multiple) devices such as to through entrance 108 to the relevant pump (not shown) of the current spraying excellent 106.Those skilled in the art will recognize that, controller 11 or similar control device can be positioned to away from temperature controller, water level controller or flow controller (Fig. 1 is not shown), or can be positioned on temperature controller, water level controller or flow controller place and comprise them.
Fig. 2 is the schematic flow diagram of the side view of smoke remover 27 in the container 11 be separated with according to the quenching container 10 of at least one aspect of the present disclosure.Smoke remover 27 can be identical or roughly similar with the smoke remover 26 shown in Fig. 1.In fig. 2, smoke remover 27 comprises water sprinkling system 101.Water sprinkling system 101 can be identical or roughly similar with the water sprinkling system 100 shown in Fig. 1.Quenching or cooling eluting gas leave quenching container 10 as air-flow 19.Air-flow 19 can travel across conduit 21 to container 11.After the smoke remover 27 travelled across in container, air-flow can be used as air-flow 23 and leaves container 11.Air-flow 23 can travel across conduit 25 to absorbing column (not shown).The liquid dropping to the bottom of container 11 can be used as liquid 62 and removes from container 11.
Fig. 3 illustrates the flow chart of the method 300 according to aspect of the present disclosure.Method 300 can utilize aforementioned means to perform.Step 301 comprises makes quenching air-flow and smoke remover surface contact, and smoke remover surface is effectively for removing smog from quenching air-flow.Step 302 comprises with effectively for reducing amount that dirt on smoke remover surface formed and water is sprayed at smoke remover on the surface by mode.Those skilled in the art will recognize that, according to the disclosure, the method can comprise extra step.Such as, the method also can comprise Part I eluting gas being received quenching container.The method can be included in the Part II of quenching container sprays quench liquid from quench liquid sprinkling system.The method can be included in quenching container and make sprayed quench liquid and air flow contacts, to produce quenching air-flow.The method can comprise and removes smog from quenching air-flow, and this quenching air-flow rises from the Part II of quenching container.The step removed from quenching air-flow can comprise makes smog and smoke remover surface contact, and wherein, smoke remover surface structure becomes to remove smog from quenching eluting gas.The method can comprise and water is sprayed onto smoke remover surface or smoke remover on the surface, and wherein, the dirt on smoke remover surface is formed and reduces.Those skilled in the art will recognize that, according to the disclosure, effluent stream can comprise acrylonitrile and ammonia, and quench liquid can comprise acid.The step of spray water can comprise, with the speed of about 1 to 2 gallons per minute (that is, about 3.79 to 7.57 liters per minute), water is sprayed onto smoke remover surface.Smoke remover surface is sprayed onto with the interval Jiang Shui of approximately every 5 to 10 minutes during the step of spray water can be included in the operation of quenching container.The step of spray water can comprise water is sprayed onto about 5 to about 600 seconds, smoke remover surface.The sprinkling of water can comprise water is sprayed onto about 30 to about 60 seconds, smoke remover surface.
Although describe the disclosure in conjunction with its some preferred embodiment in the foregoing specification, and set forth many details for illustration object, but what it will be appreciated by one of skill in the art that is, the embodiment that disclosure tolerable is extra, and some in details as herein described can change significantly when not departing from general principle of the present invention.Should understand, when not departing from the scope of spirit and scope of the present disclosure or claim, feature of the present disclosure is allowed amendment, change, change or is substituted.Such as, the size of various component, quantity, size and shape can change to mate specific application.Therefore, shown and described in this article specific embodiment is only for illustrating object.
Claims (59)
1. a device, comprising:
Quenching container, it is configured to provide quenching air-flow; With
Smoke remover, it is configured to receive described quenching air-flow;
Described smoke remover comprises smoke remover surface, described smoke remover surface structure becomes to remove smog from quenching eluting gas, described smoke remover comprises water sprinkling system, described water sprinkling system comprises nozzle, described nozzle structure becomes water is sprayed at described smoke remover on the surface, and described water sprinkling system is formed for the dirt reduced on described smoke remover surface effectively.
2. device according to claim 1, is characterized in that, at least one nozzle structure becomes the solid circular cone spraying of spray water.
3. device according to claim 1 and 2, is characterized in that, at least one nozzle structure becomes surface water being upwards sprayed onto described smoke remover surface.
4. device according to claim 3, is characterized in that, at least one nozzle structure described becomes to spray the water partly overlapping with the water spray from another nozzle.
5. device according to claim 1, is characterized in that, described smoke remover surface extends along the cross section of the air-flow of described quenching eluting gas.
6. device according to claim 1, is characterized in that, described smoke remover surface is selected from the set be made up of steel waste pad, blade and flap.
7. device according to claim 6, is characterized in that, described smoke remover surface comprises multiple flap.
8. device according to claim 7, is characterized in that, described multiple flap is horizontal flaps.
9. device according to claim 1, it is characterized in that, described nozzle at least comprises continuous print first, second, and third water spray mouth, wherein, described second water spray mouth and described first water spray mouth interval first distance, and and described 3rd water spray mouth interval second distance, described first distance is identical with described second distance.
10. device according to claim 1, is characterized in that, described nozzle and about 1 to 2 feet of described smoke remover spaced surface (about 30cm is to about 61cm).
11. devices according to claim 10, is characterized in that, described nozzle structure becomes to allow from about 1 to 2 gallons per minute of each nozzles spray (about 3.5 are raised to 7.75 liters).
12. devices according to claim 1, is characterized in that, described water is clean water.
13. devices according to claim 1, is characterized in that, comprise controller, and described controller is configured to the current controlling to go to described water sprinkling system.
14. devices according to claim 13, it is characterized in that, described controller is configured to the current controlling to go to described water sprinkling system, so that the current going to described water sprinkling system occur with the interval of approximately every 5 to 10 minutes during the operation of described quenching container.
15. devices according to claim 1, is characterized in that, described controller is configured to control to be about 5 to about 600 seconds by from described nozzle to the duration of the current on described smoke remover surface.
16. devices according to claim 15, is characterized in that, described controller is configured to control to be about 30 to about 60 seconds by from described nozzle to the duration of the current on described smoke remover surface.
17. devices according to claim 2, is characterized in that, the solid circular cone spraying from the described water of at least one nozzle described has the spray angle of about 30 to 90 degree.
18. devices according to claim 17, is characterized in that, the solid circular cone spraying from the described water of at least one nozzle described has the spray angle of about 70 degree.
19. devices according to claim 1, is characterized in that, described smoke remover is arranged in described quenching container.
20. devices according to claim 1, is characterized in that, described smoke remover is arranged in the container of the outside of described quenching container.
21. devices according to claim 1, it is characterized in that, described effluent stream comprises acrylonitrile and ammonia, and described quench liquid comprise acid.
22. 1 kinds of techniques, comprise the following steps:
Make quenching air-flow and smoke remover surface contact, described smoke remover surface is effectively for removing smog from described quenching air-flow; And
With the amount effectively formed for the dirt reduced on described smoke remover surface and mode, water is sprayed at described smoke remover on the surface.
23. techniques according to claim 22, is characterized in that, described quenching air-flow comprises acrylonitrile and ammonia.
24. techniques according to claim 22, is characterized in that, the step of spray water comprises with the speed of about 1 to 2 gallons per minute water is surperficial to described smoke remover from least one nozzles spray.
25. techniques according to claim 22, is characterized in that, are sprayed onto described smoke remover surface during the step of sprinkling is included in the operation of described quenching container with the interval Jiang Shui of approximately every 5 to 10 minutes.
26. techniques according to claim 22, is characterized in that, the step of sprinkling comprises water is sprayed onto about 5 to about 600 seconds, described smoke remover surface.
27. techniques according to claim 26, is characterized in that, the step of sprinkling comprises water is sprayed onto about 30 to about 60 seconds, described smoke remover surface.
28. techniques according to claim 22, is characterized in that, the step of sprinkling comprises, with the amount effectively formed for the dirt reduced on described smoke remover surface and mode, water and acid is sprayed at described smoke remover on the surface.
29. 1 kinds of techniques for the continuous manufacture of acrylonitrile, comprise the quenching gas outflow making to comprise acrylonitrile and ammonia and flow with smoke remover surface contact and water is sprayed at described smoke remover on the surface.
30. techniques according to claim 29, is characterized in that, the major part that described quenching gas flows out the major part of stream contacts described smoke remover surface.
31. techniques according to claim 30, is characterized in that, described quenching gas flows out the described smoke remover surface of roughly all contacts in stream.
32. techniques according to claim 29, is characterized in that, it is roughly whole that at least some in water spray contacts in described smoke remover surface.
33. techniques according to claim 29, is characterized in that, the major part of water and described quenching gas flow out and flows in the same way.
34. techniques according to claim 29, is characterized in that, the major part of water is sprayed onto in the upstream face on described smoke remover surface.
35. techniques according to claim 29, is characterized in that, the major part of water is sprayed through at least three spray nozzles.
36. techniques according to claim 29, is characterized in that, the major part of water spray is interval.
37. techniques according to claim 29, is characterized in that, in water spray is roughly all interval.
38. techniques according to claim 29, is characterized in that, the major part of water spray be applied to during operation described smoke remover surface time 5 and 15% between.
39. 1 kinds of devices, comprising:
Quenching container, it has Part I and Part II, and described Part I is positioned at below described Part II;
The Part I of described quenching container has the entrance being configured to receive effluent stream;
The Part II of described quenching container comprises quench liquid sprinkling system, and described quench liquid sprinkling system is configured to receive quench liquid;
Described quench liquid sprinkling system comprises first group of nozzle, and described first group of nozzle structure becomes downward and spray described quench liquid;
Smoke remover, described smoke remover is positioned at the downstream of the Part II of described quenching container, described smoke remover comprises smoke remover surface, and described smoke remover surface structure becomes to remove smog from quenching eluting gas, and described smoke remover comprises sprinkling system;
Described sprinkling system comprises second group of nozzle, and described second group of nozzle structure becomes to be sprayed onto described smoke remover surface.
40., according to device according to claim 39, is characterized in that, at least one nozzle structure in described second group of nozzle becomes the solid circular cone spraying of spray water.
41., according to device according to claim 39, is characterized in that, at least one nozzle structure in described second group of nozzle becomes surface water being upwards sprayed onto described smoke remover surface.
42. devices according to claim 41, is characterized in that, at least one nozzle structure described in described second group of nozzle becomes to spray the water partly overlapping with the water spray from another nozzle in described second group of nozzle.
43., according to device according to claim 39, is characterized in that, described smoke remover surface extends along the cross section of the air-flow of described quenching eluting gas.
44., according to device according to claim 39, is characterized in that, described smoke remover surface is selected from the set be made up of steel waste pad, blade and flap.
45. devices according to claim 44, is characterized in that, described smoke remover surface comprises multiple flap.
46. devices according to claim 45, is characterized in that, described multiple flap is horizontal flaps.
47. according to device according to claim 39, it is characterized in that, described second group of nozzle at least comprises continuous print first, second, and third water spray mouth, wherein, described second water spray mouth and described first water spray mouth interval first distance, and and described 3rd water spray mouth interval second distance, described first distance is identical with described second distance.
48. devices according to claim 47, is characterized in that, described second group of nozzle and about 1 to 2 feet of described smoke remover spaced surface.
49. devices according to claim 48, is characterized in that, described second group of nozzle structure one-tenth permission about 1 to 2 gallons per minute from each nozzles spray.
50., according to device according to claim 39, is characterized in that, described water is clean water.
51., according to device according to claim 39, is characterized in that, comprise controller, and described controller is configured to the current controlling to go to described water sprinkling system.
52. devices according to claim 51, it is characterized in that, described controller is configured to the current controlling to go to described water sprinkling system, so that the current going to described water sprinkling system occur with the interval of approximately every 5 to 10 minutes during the operation of described quenching container.
53., according to device according to claim 39, is characterized in that, described controller is configured to control to be about 5 to about 600 seconds by from described second group of nozzle to the duration of the current on described smoke remover surface.
54. devices according to claim 53, is characterized in that, described controller is configured to control to be about 30 to about 60 seconds by from described second group of nozzle to the duration of the current on described smoke remover surface.
55., according to device according to claim 39, is characterized in that, the solid circular cone spraying from the water of at least one nozzle in described second group of nozzle has the spray angle of about 30 to 90 degree.
56. devices according to claim 55, is characterized in that, the solid circular cone spraying from the described water of at least one nozzle described in described second group of nozzle has the spray angle of about 70 degree.
57., according to device according to claim 39, is characterized in that, described smoke remover is arranged in described quenching container.
58., according to device according to claim 39, is characterized in that, described smoke remover is arranged in the container of the outside of described quenching container.
59., according to device according to claim 39, is characterized in that, described effluent stream comprises acrylonitrile and ammonia, and described quench liquid comprises acid.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124775.XA CN104941380A (en) | 2014-03-31 | 2014-03-31 | Improved smog eliminator operation for quenching effluent |
| JP2016559872A JP6579661B2 (en) | 2014-03-31 | 2015-03-26 | Operation of an improved mist remover for quenching emissions. |
| EA201691954A EA032744B1 (en) | 2014-03-31 | 2015-03-26 | Improved mist eliminator operation for quench effluent |
| PCT/US2015/022695 WO2015153273A1 (en) | 2014-03-31 | 2015-03-26 | Improved mist eliminator operation for quench effluent |
| TW104110289A TWI666056B (en) | 2014-03-31 | 2015-03-30 | Improved mist eliminator operation for quench effluent |
| SA516371958A SA516371958B1 (en) | 2014-03-31 | 2016-09-29 | Improved Mist Eliminator Operation for Quench Effluent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124775.XA CN104941380A (en) | 2014-03-31 | 2014-03-31 | Improved smog eliminator operation for quenching effluent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104941380A true CN104941380A (en) | 2015-09-30 |
Family
ID=53008847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410124775.XA Pending CN104941380A (en) | 2014-03-31 | 2014-03-31 | Improved smog eliminator operation for quenching effluent |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP6579661B2 (en) |
| CN (1) | CN104941380A (en) |
| EA (1) | EA032744B1 (en) |
| SA (1) | SA516371958B1 (en) |
| TW (1) | TWI666056B (en) |
| WO (1) | WO2015153273A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| SA516371958B1 (en) | 2022-10-12 |
| JP6579661B2 (en) | 2019-09-25 |
| EA032744B1 (en) | 2019-07-31 |
| JP2017515655A (en) | 2017-06-15 |
| TWI666056B (en) | 2019-07-21 |
| WO2015153273A1 (en) | 2015-10-08 |
| TW201540359A (en) | 2015-11-01 |
| EA201691954A1 (en) | 2017-02-28 |
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Application publication date: 20150930 |