CN106833758A - A kind of industrial coke-stove gas ammonia gas recovery method and device - Google Patents

A kind of industrial coke-stove gas ammonia gas recovery method and device Download PDF

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Publication number
CN106833758A
CN106833758A CN201710059368.9A CN201710059368A CN106833758A CN 106833758 A CN106833758 A CN 106833758A CN 201710059368 A CN201710059368 A CN 201710059368A CN 106833758 A CN106833758 A CN 106833758A
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China
Prior art keywords
stage
ammonia
coke
industrial
stove gas
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CN201710059368.9A
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Chinese (zh)
Inventor
马良
王依谋
李兵
冯卫权
贾虹
刘安林
何梦雅
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Shanghai Zhejiang Chemical Technology Co Ltd
East China University of Science and Technology
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Shanghai Zhejiang Chemical Technology Co Ltd
East China University of Science and Technology
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Publication of CN106833758A publication Critical patent/CN106833758A/en
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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
    • B01D53/346—Controlling the process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • 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
    • B01D53/002—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 by condensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/002—Removal of contaminants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/16—Apparatus having rotary means, other than rotatable nozzles, for atomising the cleaning liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01D53/02—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 by adsorption, e.g. preparative gas chromatography
    • B01D53/06—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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01D53/14—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 by absorption
    • B01D53/1406—Multiple stage absorption
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01D53/14—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 by absorption
    • B01D53/1456—Removing acid components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01D53/14—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 by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
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    • B01D53/46—Removing components of defined structure
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    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
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    • 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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    • 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
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    • B01D53/52—Hydrogen sulfide
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    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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    • B01D53/8603—Removing sulfur compounds
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • 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
    • B01D53/96—Regeneration, reactivation or recycling of reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J38/00—Regeneration or reactivation of catalysts, in general
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/05—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by wet processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/12—Separation of ammonia from gases and vapours
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/002—Removal of contaminants
    • C10K1/003—Removal of contaminants of acid contaminants, e.g. acid gas removal
    • C10K1/004—Sulfur containing contaminants, e.g. hydrogen sulfide
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
    • C10K1/06—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials combined with spraying with water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
    • C10K1/101—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids with water only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C3/00—Other direct-contact heat-exchange apparatus
    • F28C3/06—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
    • F28C3/08—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour with change of state, e.g. absorption, evaporation, condensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
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Abstract

The invention discloses industrial coke-stove gas ammonia gas recovery method and device, there is provided a kind of industrial coke-stove gas ammonia gas recovery method, the method flow is：The industrial coke-stove gas of ammonia is carried secretly by entering single-stage or Multi-stage spiral injection absorber after oil removing pot simultaneously with suction ammonia industrial water；The suction ammonia industrial water of ammonia is absorbed in single-stage or Multi-stage spiral injection absorber to heat exchanger, is pumped to tank used for storing ammonia with solution circulation pump after being exchanged heat through heat exchanger；Industrial coke-stove gas after removing ammonia enters follow-up equipment by single-stage or Multi-stage spiral injection absorber top outflow after being dehydrated through drier.Present invention also offers the relevant apparatus of industrial coke-stove gas Ammonia recovery.

Description

A kind of industrial coke-stove gas ammonia gas recovery method and device
The present patent application requirement entitled " a kind of high performance vulcanization hydrogen absorption plant ", the applying date is September 21 in 2016 Day, application number is 201610494578.6 invention, used as the priority of swirl injection adsorber structure in the present invention.
Technical field
The present invention relates to coke oven gas purification method and technology field, it is adaptable to coke-stove gas Ammonia recovery process, especially relate to And a kind of recovery method and device of coke-stove gas ammonia.
Background technology
Ammonia, NH3, colourless gas have strong impulse smell, and soluble in water, density is 0.7710.Relative density is 0.5971 (air=1.00), are easily liquefied as colourless liquid.Pressurization at normal temperatures can make its liquefaction (critical-temperature 132.4 DEG C, 11.2 MPas of critical pressure, i.e. 112.2 atmospheric pressure).Boiling point is -33.5 DEG C, is also easily cured into snow shape solid.It is molten - 77.75 DEG C of point, is dissolved in water, ethanol and ether.Nitrogen and hydrogen can be resolved into high temperature, there is reduction, there is catalyst to deposit When can be oxidized to nitric oxide.For liquid nitrogen processed, ammoniacal liquor, nitric acid, ammonium salt and amine etc., can be directly synthesized by nitrogen and hydrogen and It is obtained, energy skin ambustion, eyes, the mucous membrane of respiratory apparatus, people's suction are excessive, can cause lung swelling, so that it is dead.
Coke-stove gas, refers to that several bituminous coal are configured into coal for coking, by after high-temperature retorting in coke oven, in output Produced a kind of imflammable gas while the product such as coke and tar, is the byproduct of coking industry.In process of coking, Most of nitrogen in coal enters coke-stove gas with the form of ammonia；In desulfurization process, with ammonia as alkali source desulfurization after, it is excessive Ammonia can enter subsequent handling with coke-stove gas.Due to ammonia have certain toxicity, corrosivity and with excitant dislike Smelly smell, needed to remove the ammonia in coke-stove gas before coke-stove gas supplies industry or civilian users use.
The domestic ammonia removed using the method for tower equipment utilization washing ammonia mostly in coke-stove gas, such as patent 201410666763.X absorbs treatment ammonia using spray column, and patent 201320482583.7 discloses ammonia absorption tower and improves ammonia Aspiration efficiency, patent 201210542213.8 processes ammonia using eddy flow stripping integration apparatus, but for ammonia in waste water Treatment.Carry out that ammonia gas recovery method is complicated, floor space is big, investment is high, attendant equipment is more using tower equipment.Have no at present To the research report that coke-stove gas Ammonia recovery is carried out using Multi-stage spiral injection absorber.
The content of the invention
In order to overcome the shortcomings of above-mentioned existing method, the invention provides a kind of industrial coke-stove gas ammonia gas recovery method with Device
A kind of industrial coke-stove gas ammonia gas recovery method, it is characterised in that：
(1) industrial coke-stove gas enters oil removing pot de-oiling mist；
(2) after de-oiling gas enter single-stage or Multi-stage spiral injection absorber, while inhale ammonia industrial water through pump also into Single-stage or Multi-stage spiral injection absorber；
(3) industrial coke-stove gas tangentially enters from single-stage or Multi-stage spiral injection absorber top entry, inhales ammonia industrial Water is sprayed into from single-stage or Multi-stage spiral injection absorber side wall aperture；
(4) the streamlined absorbent for radially spraying into persistently is cut by the industrial coke-stove gas of tangential rotation at a high speed, forms nothing Number adsorption liquid droplet；
(5) adsorption liquid rich in ammonia flows out from single-stage or Multi-stage spiral injection absorber bottoms after absorption, through heat exchange Enter wet tank after device heat exchange and reclaim storage；
(6) postindustrial coke-stove gas from single-stage or Multi-stage spiral injection absorber top outflow is purified, is dehydrated through drier Enter follow-up equipment afterwards.
Preferably, the Multi-stage spiral injection absorber described in step (2) is 2~5 grades.
Preferably, the single-stage swirl injection adsorber works pressure drop described in step (2) is 1~5kpa.
Preferably, described in step (2) single-stage or Multi-stage spiral injection absorber side wall aperture can for it is circular, semicircle, Triangle, square, aperture area is 0.2~30mm2。
Preferably, the absorbent described in step (4) is industrial water or industrial circulating water, reduces method investment.
On the other hand, the invention provides a kind of industrial coke-stove gas ammonia recycling device.The device includes：
Oil removing pot is used to remove mist of oil in industrial coke-stove gas；
Single-stage or Multi-stage spiral injection absorber are used to adsorb ammonia in industrial coke-stove gas；
The heat exchanger being connected with single-stage or Multi-stage spiral injection absorber, liquid therein is flowed into for cooling down；
The drier being connected with single-stage or Multi-stage spiral injection absorber, for liquid in the removing postindustrial coke-stove gas of purification Phase；
The wet tank being connected with heat exchanger, for reclaiming storage ammoniacal liquor；
Preferably, the deamination adsorption efficiency of described single-stage swirl injection absorber is more than 99%.
Preferably, described single-stage or Multi-stage spiral injection absorber use different-diameter, can process the work of different air quantity Industry coke-stove gas.
Preferably, described equipment material has corrosion resistance.
Preferably, described Multi-stage spiral injection absorber can be integrated, and heat exchanger is vertical or horizontal.
Method of the present invention feature is as follows：
(1) swirl injection absorber plural serial stage is used, deamination effect is effectively improved.
(2) cyclone adsorbing device side-wall hole is different, and absorbent shape of plasma jet is different, and mass transfer effect is different, can be different degrees of Influence deamination effect.
(3) absorbent is industrial water or industrial circulating water, reduces method investment, reduces pollution.
(4) the method is applied to industrial coke-stove gas operating mode.
Device characteristic of the invention is as follows：
The deamination adsorption efficiency of single-stage swirl injection absorber is more than 99%.
The device is easy of integration, and oil removing pot, swirl injection absorber, heat exchanger, wet tank, drier diameter are small, reduces The total floor space of device and gross investment.
Brief description of the drawings
Fig. 1 is single-stage swirl injection absorber method flow diagram of the invention；
Fig. 2 is Multi-stage spiral injection absorber method flow diagram of the invention；
Fig. 3 is swirl injection absorber inwall injection schematic diagram of the invention.
Symbol description：
1 oil removing pot；2 industrial water pots；3 industrial water liquid pumps；4 heat exchangers；5 ammoniacal liquor liquid pumps；
6 tank used for storing ammonia；7 single-stage swirl injection absorbers；8 driers；9 two grades of swirl injection absorbers.
Specific embodiment
Technology design of the invention is as follows：
As shown in Fig. 2 the coke-stove gas of plant emissions enters removes mist of oil in coal gas in oil removing pot 1, enter single after oil removing In level or Multi-stage spiral injection absorber 7 and 9, while industrial water is pumped to swirl injection absorber 7 by liquid pump 3 in storage tank 2 In 9, gas enters Multi-stage spiral injection absorber 9 and further purifies in 7；Ammoniacal liquor enters and changes in swirl injection absorber 7 and 9 Hot device 4, is delivered in tank used for storing ammonia 6 after heat exchange by liquid pump 5；Gas enters in drier 8 after being purified through swirl injection absorber Dry, be delivered to follow-up equipment.
Swirl injection adsorber structure in the present invention, reference can be made to entitled " a kind of high performance vulcanization hydrogen absorption plant ", The applying date is September in 2016 21, and application number is 201610494578.6 invention.
Above said content is only the basic explanation under present inventive concept, and according to appointing that technical scheme is made What equivalent transformation, all should belong to protection scope of the present invention.
With reference to embodiment, the present invention is further described, and embodiment does not limit the scope of the invention.
Embodiment 1：
Certain coking subsidiary factory of Xinjiang branch company of steel-making group coal gas ammonia treatment, is carried out according to the inventive method and device, is adopted With ammonia in single-stage cyclone adsorbing coal gas.
Table 1 absorbs front and rear coke-stove gas and contrasts mg/m containing ammonia3
Ammonia before absorption Ammonia after absorption
3971.5 403.4
3870.9 283.9
3847.9 310.9
2482.7 154.5
3612.6 189.2
Technique effect：
Using the novel coke oven gas ammonia gas recovery method and device, ammonia is dense after removing single-stage swirl injection absorber Degree is down to 500mg/m3Hereinafter, efficiency is more than 90%, substantially increases ammonia removing recovering effect.
Embodiment 2：
Above-mentioned operating mode gas is carried out according to the inventive method and device, using ammonia in Multi-stage spiral absorption coal gas.
Table 2 absorbs front and rear coke-stove gas and contrasts mg/m containing ammonia3
Technique effect：
Using the novel coke oven gas ammonia gas recovery method and device, ammonia is dense after removing single-stage swirl injection absorber Degree is down to 240mg/m3Hereinafter, efficiency is more than 95%, substantially increases ammonia removing recovering effect.
The explanation of above example is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that right For those skilled in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention. Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one The scope most wide for causing.

Claims (8)

1. a kind of industrial coke-stove gas ammonia gas recovery method, it is characterised in that：
Industrial coke-stove gas enters oil removing pot de-oiling mist；Gas enters single-stage or Multi-stage spiral injection absorber after de-oiling, while Ammonia industrial water is inhaled through pump also into single-stage or Multi-stage spiral injection absorber；Industrial coke-stove gas sprays from single-stage or Multi-stage spiral Penetrate absorber top entry tangentially to enter, inhale ammonia industrial water and sprayed into from single-stage or Multi-stage spiral injection absorber side wall aperture； The streamlined absorbent for radially spraying into persistently is cut by the industrial coke-stove gas of tangential rotation at a high speed, forms countless absorption liquid mists Drop；The adsorption liquid rich in ammonia flows out from single-stage or Multi-stage spiral injection absorber bottoms after absorption, after being exchanged heat through heat exchanger Reclaimed into wet tank and stored；Purify postindustrial coke-stove gas from single-stage or Multi-stage spiral injection absorber top outflow, warp Enter follow-up equipment after drier dehydration.
2. method according to claim 1, it is characterised in that described Multi-stage spiral injection absorber is 2~5 grades.
3. method according to claim 1, it is characterised in that described single-stage swirl injection adsorber works pressure drop is 1 ~5kpa.
4. method according to claim 1, it is characterised in that described single-stage or Multi-stage spiral injection absorber side wall are small Kong Kewei is circular, semicircle, triangle or square, and aperture area is 0.2~30mm2。
5. method according to claim 1, it is characterised in that described absorbent is industrial water or industrial circulating water.
6. a kind of industrial coke-stove gas ammonia recycling device, the device includes：
Oil removing pot (1), for removing mist of oil in industrial coke-stove gas；Single-stage or Multi-stage spiral spray absorber (2), for adsorbing Ammonia in industrial coke-stove gas；The heat exchanger (3) being connected with single-stage or Multi-stage spiral injection absorber, flows into wherein for cooling down Liquid；The drier (4) being connected with single-stage or Multi-stage spiral injection absorber, in the removing postindustrial coke-stove gas of purification Liquid phase；The wet tank (5) being connected with heat exchanger, for reclaiming storage ammoniacal liquor.
7. device according to claim 6, it is characterised in that described single-stage or Multi-stage spiral spray absorber (2) with The industrial coke-stove gas for processing different air quantity is foundation, using different-diameter.
8. device according to claim 6, it is characterised in that it is multistage string that the Multi-stage spiral sprays absorber (2) Even and/or in parallel integrated, heat exchanger (3) is vertical or horizontal.
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CN201710058473.0A Pending CN106731550A (en) 2016-06-30 2017-01-23 One kind burns dusting and desulfuring system and its autocontrol method
CN201720099815.9U Expired - Fee Related CN206604327U (en) 2016-06-30 2017-01-23 A kind of incineration tail gas dedusting and sulfur recovery system
CN201710062426.3A Pending CN106731482A (en) 2016-06-30 2017-01-24 A kind of industrial blast-furnace gas hydrogen chloride Gas recovering method and device
CN201710059368.9A Pending CN106833758A (en) 2016-06-30 2017-01-24 A kind of industrial coke-stove gas ammonia gas recovery method and device
CN201720103756.8U Active CN206897093U (en) 2016-06-30 2017-01-25 A kind of coking plant low pressure loss gas recycling and processing device
CN201710062597.6A Pending CN106731617A (en) 2016-06-30 2017-01-25 A kind of cold burnt foul waste gas of coking plant process complete method and apparatus
CN201710062456.4A Active CN106731444B (en) 2016-06-30 2017-01-25 Method and device for recycling and treating low-pressure dissipation gas of coking device
CN201720103099.7U Expired - Fee Related CN206604367U (en) 2016-06-30 2017-01-25 A kind of cold burnt foul waste gas processing complete set of equipments of coking plant
CN201720103319.6U Expired - Fee Related CN206604368U (en) 2016-06-30 2017-01-25 A kind of industrial low pressure loss gas absorbing device
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CN201710058599.8A Pending CN107051064A (en) 2016-06-30 2017-01-23 A kind of incineration tail gas dedusting and sulfur recovery system and its application method
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CN201720103099.7U Expired - Fee Related CN206604367U (en) 2016-06-30 2017-01-25 A kind of cold burnt foul waste gas processing complete set of equipments of coking plant
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Application publication date: 20170613