CN106731617A - A kind of cold burnt foul waste gas of coking plant process complete method and apparatus - Google Patents

A kind of cold burnt foul waste gas of coking plant process complete method and apparatus Download PDF

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Publication number
CN106731617A
CN106731617A CN201710062597.6A CN201710062597A CN106731617A CN 106731617 A CN106731617 A CN 106731617A CN 201710062597 A CN201710062597 A CN 201710062597A CN 106731617 A CN106731617 A CN 106731617A
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China
Prior art keywords
waste gas
gas
water
coking
foul waste
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Pending
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CN201710062597.6A
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Chinese (zh)
Inventor
马良
李出和
何梦雅
李晋楼
王依谋
肖翔
曹燕军
刘安林
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Luoyang Jianguang Special Equipment Co ltd
East China University of Science and Technology
Sinopec Engineering Inc
Original Assignee
Luoyang Jianguang Special Equipment Co Ltd
East China University of Science and Technology
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Publication of CN106731617A publication Critical patent/CN106731617A/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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • B01D53/02—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B01D53/14—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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    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B01D53/74—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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    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8603—Removing sulfur compounds
    • B01D53/8612—Hydrogen sulfide
    • 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
    • B01D53/96—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
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Abstract

The present invention relates to delayed coking unit, there is provided a kind of cold burnt foul waste gas of coking plant process complete method, and the method is：Coke cooling water in coke cooling water tank rushes vavuum pump and transports through water pump and water, is evacuated to coke drum for decoking；Cold burnt foul waste gas rush the power of vavuum pump generation using water, drain into a point flow container, treat gas-liquid separation completely, and jetstream whirl absorption and separation is carried out into foul waste gas absorption plant and alkali lye, and formation drains into heating furnace without odour；The alkaline residue of absorbing reaction generation is discharged by device bottom, delivers to absorbent regeneration device, is recycled.Present invention also offers the complexes of the cold burnt foul waste gas treatment of coking plant.The method by the use of original coke cooling water pump affluence energy as cold burnt foul waste gas power resources, and will after treatment without odour be passed through heating furnace as burning source of the gas.Secondary pollution is not produced, plant energy consumption is increased without extra, method flow is simple, it is adaptable to various cold burnt foul waste gas processing systems of coking plant.

Description

A kind of cold burnt foul waste gas of coking plant process complete method and apparatus
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 invention belongs to oils exhaust-gas treatment field, it is related to a kind for the treatment of side that oils foul waste gas are administered with existing alkali lye Method, it is adaptable to the cold burnt foul waste gas processing procedure of coking plant.Specifically, it is useless the invention provides the cold burnt stench of coking plant The complete method and apparatus of gas disposal.
Background technology
Delayed coking is the key link of Residual cracking, is the Residual cracking means being most widely used at present.Delay coke Change raw material based on residual oil, the characteristics of with many race's hydrocarbon, big molecular weight and boiling point high.Condensed in hydraulic decoking and coke cooling water When, necessarily lead to a large amount of cold burnt foul waste gas.With VOCs, based on hydrogen sulfide and organic sulfur compound, temperature can for cold burnt foul waste gas Up to 85~125 DEG C, the air pollution to surrounding is very serious, in order to solve increasingly serious environmental problem, administers cold burnt stench Waste gas is increasingly paid close attention to by each side.At present, the purification method of use is poor with equipment prevalent effects, easily causes secondary pollution.
The processing method of cold burnt foul waste gas mainly has two ways：One kind is, by after waste gas and water-oil separating, to be transported through pump It is input into follow-up exhaust gas absorption device.Also be by waste gas after multiple condensation in drainer, then will outside on-condensible gas arrange.Wherein The purification mechanism being related to is divided into three kinds：The first kind is electrostatic method, i.e., under DC Electric Field, make pollutant that ionization, solution to occur From with excite, bigger molecule pollutant is transformed into simple small molecule safe material；Equations of The Second Kind be using filtering, inertial collision, The Mechanical Methods such as absorption；3rd class is the wet method for using moisture film, spraying, impact etc. based on liquid absorption.
Chinese patent CN201320049476.5 discloses a kind of coking decoking emission-control equipment, Chinese patent CN200610148728.4 discloses waste gas processing method and device in a kind of coke cooling water, their all controlling based on coking waste gas Reason problem, but all there is some problems and deficiency, in practice it has proved that above-mentioned patent has the following disadvantages：
(1) purification is not thorough, and harmful exhaust absorptivity is low.Through tail gas of the digester after deodorant, it is impossible to removing vulcanization completely The a large amount of VOCs things of hydrogen, also remaining.Meanwhile, cleaning solution can be adsorbed on gas, cause the corrosion of pipeline and equipment.Arranged outside solidifying gas A large amount of pollutions can be caused.
(2) energy utilization rate is low.Existing method flow needs the extraneous a large amount of power of offer, virtually causes energy waste And economic loss.
(3) method flow is more complicated.In-line meter is more, and equipment number of units is more.
(4) it is relatively costly.Existing exhaust gas absorption device need periodic cleaning or change filter element, lifted it is existing into This, the wasting of resources.
Therefore, this area being capable of reduces cost, simplified system, while carrying efficient coking dress in the urgent need to developing one kind Put cold burnt foul waste gas and process complete method and apparatus.
The content of the invention
In order to solve the problems such as traditional cold Jiao's foul waste gas purification is not thorough, energy utilization rate is low, element is more, this hair Bright to process complete method and apparatus there is provided a kind of cold burnt foul waste gas of coking plant, concrete scheme is as follows：
A kind of cold burnt foul waste gas of coking plant process complete method, and the method includes：
(1) the cold burnt waste water from coke cooling water tank rushes vavuum pump through high-pressure hydraulic pump and water, is evacuated to coke drum for except Jiaozhuo Industry, is delivered to a point flow container, waste gas after point liquid through the power that water rushes vavuum pump generation using coke cooling water by the coking waste gas containing oil and gas Exhaust gas absorption device is delivered to from a point flow container top, swirl injection absorber is provided with exhaust gas absorption device, inhaled in jetstream whirl There is absorption and separation with alkali lye in adnexa, discharged from absorber overhead without odour and mixed with air, be delivered to by blower fan Heating furnace, is burnt as source of the gas.
(2) liquid phase mixture isolated through point flow container flows out from point flow container bottom, is back to coke cooling water tank middle and upper part, by The original oil removal systematic unity treatment of coke cooling water tank.
(3) alkali lye is through water pump transport injection emission-control equipment, after abundant Reaction Separation in swirl injection absorber, shape Absorbent oxidation regeneration device is expelled to by underflow opening into alkaline residue, is used after regeneration Posterior circle.
Preferably, the coking foul waste gas composition described in step (1) mainly includes volatile organic matter (VOCs), sulphur Change hydrogen, organic sulfur compound and account for more than the 98% of total coking waste gas.
Preferably, entrance VOCs concentration is no more than 5000mg/m3When, VOCs contents are up to 50mg/m after purification3Below.
Preferably, step (2), the coke cooling water described in (3) and alkali lye can be recycled.
Method of the present invention is applied to the cold burnt foul waste gas treatment operating mode of coking plant.
On the other hand, the invention provides a kind of cold burnt foul waste gas treatment complete set of equipments of coking plant, the equipment includes：
Water rushes vavuum pump, for providing power for waste gas transport；
Divide flow container, for providing place for Oil-gas Separation；
Jetstream whirl absorber, for absorbing the VOCs in waste gas, hydrogen sulfide, and organic sulfur compound；
Heating furnace, for the cleaning of off-gas that burns；
Preferably, swirl injection device can plural serial stage and parallel connection, adsorption efficiency is more than 99%.
Preferably, flow container and the upper and lower coaxial communication of emission-control equipment are divided, a point flow container top is provided with escaping pipe, for inciting somebody to action The waste gas divided after liquid is passed through in emission-control equipment.
Preferably, emission-control equipment is provided with feed tube, air inlet pipe, escaping pipe and drain pipe, while interior set injection absorption Device.
Preferably, water rushes vavuum pump and can produce negative pressure under coke cooling water effect, and cold burnt foul waste gas are extracted rapidly, and defeated Deliver to follow-up equipment.
Method of the present invention feature is as follows：
(1) coking foul waste gas series connection water rushes vavuum pump, using coke cooling water power draft, without extra power source.
(2) liquid is derived from existing method, without additional configuration or purchase.
(3) after forming alkaline residue after liquid reaction, absorption and regeneration device is drained into, regeneration Posterior circle is used, non-secondary pollution.
(4) purified heel row to the heating furnace that absorbs of coking foul waste gas burns, without direct outer waste air.
(5) method is applied to the treatment operating mode of the cold burnt foul waste gas of coking plant.
Complete set of equipments feature of the invention is as follows：
(1) divide flow container coaxially connected with emission-control equipment, reduce total floor space and the investment of device.
(2) absorption efficiency of jetstream whirl absorber is more than 99%.
Brief description of the drawings
Fig. 1 is the cold burnt foul waste gas process flow figure of coking plant of the invention.
Symbol description：
1 high-pressure hydraulic pump；2 water rush vavuum pump；3rd, alkali liquid tank；4 water pumps；51 points of flow containers；52 emission-control equipments；53 eddy flows spray Penetrate absorber；6 blower fans；7 heating furnaces.
Specific embodiment
Technology design of the invention is as follows：
As shown in figure 1, coke cooling water rushes vavuum pump 2 through high-pressure hydraulic pump 1 and water, coke drum is evacuated to, it is cold that coke cooling water pond is extracted out Burnt foul waste gas rush vavuum pump 2 and are delivered in point flow container 51 through water, and point flow container 51 is coaxial with emission-control equipment 52 connects, and divide liquid Waste gas in tank 51 is purified into emission-control equipment 52, and swirl injection absorber 53, eddy flow are provided with emission-control equipment 52 Cleaning of off-gas is delivered to heating furnace 7 through blower fan 6 in injection absorber 53.Alkali lye in alkali liquid tank 3 is delivered at waste gas through water pump 4 Reason device 52, after absorption and separation, drains into solvent reclamation device.
In the first aspect of the present invention, there is provided a kind of complete method of the cold burnt foul waste gas treatment of coking plant, the party Method includes：
Coke cooling water in coke cooling water filling rushes vavuum pump and is evacuated to coke drum through high-pressure hydraulic pump and water, while temperature is 100 DEG C The negative pressure that cold burnt foul waste gas are produced using coke cooling water in water rushes vavuum pump, is evacuated to point flow container top and is entered by charging aperture.
Because density is different, by gravity and buoyancy, a small amount of oil droplet point liquid in mix waste gas is deposited to a point flow container Bottom, coke cooling water tank is delivered to through circulating liquid bath, is processed by original oil removal systematic unity.
Waste gas flow to exhaust gas absorption device from a point flow container top after dividing liquid, is entered with tangential velocity from cyclone adsorbing device air inlet pipe Enter, alkali liquor absorption liquid delivers to jetstream whirl absorber through water pump, from feed tube flow into, after Gas-Liquid Absorption separation after, tail gas from overflow Head piece flows out, and mixes with air, is transported by blower fan, is burned in heating furnace, and last high-altitude excludes.
Meanwhile, alkali lye and sour gas and organic volatile reaction generation sodium salt solution (alkaline residue), alkaline residue is from waste gas absorption Bottom of device is excluded by underflow pipe, delivers to absorbent regeneration device, is oxidized to sodium salt.
In the present invention, coking foul waste gas form the field of force and barometric gradient with the flowing of alkaline absorption solution itself, according to Cyclone adsorbing is carried out by centrifugal field and barometric gradient.
In the present invention, from point flow container that draw ratio is larger, separative efficiency is higher.
In the present invention, entrance VOCs concentration is no more than 5000mg/m3When, VOCs contents are up to 50mg/m after purification3With Under.
In the second aspect of the present invention, there is provided a kind of cold burnt foul waste gas treatment complete set of equipments of coking plant, the equipment Including：
Water rushes vavuum pump, for providing power for waste gas transport；
Divide flow container, for providing place for Oil-gas Separation；
Jetstream whirl absorber, for adsorbing VOCs in coking waste gas, hydrogen sulfide, and organic sulfur compound；
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 patent application document.
Heating furnace, for the cleaning of off-gas that burns；
In the present invention, the adsorption efficiency of jetstream whirl absorber is more than 99%.
Divide flow container and the upper and lower coaxial communication of exhaust gas absorption device, a point flow container top is provided with escaping pipe, for that will divide a liquid shape Into emission-control equipment in.
The inventive method is with the advantage of device：
Coking foul waste gas series connection water rushes vavuum pump, using coke cooling water power draft, without extra power source；Alkali lye is derived from existing There is method, without additional configuration or purchase；After forming alkaline residue after alkaline reaction, absorption and regeneration device is drained into, oxidation recycling makes With non-secondary pollution；Heating furnace is delivered to after the purified absorption of coking foul waste gas, without outer waste air；The method is applied to Jiao Cold burnt foul waste gas treatment operating mode is put in makeup；Divide flow container coaxially connected with emission-control equipment, reduce total floor space of device And investment；The adsorption efficiency of jetstream whirl absorber is more than 99%.
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：
Water flow rate during cooling is 200m3/ h, cold burnt foul waste gas treating capacity is 2000Nm3/ h, concentration is 3850mg/m3。
Coking foul waste gas constitute following v%：VOCs：71%, hydrogen sulfide：26.8%, organic sulfur compound：1.32%, benzene It is thing：0.88%
Technique effect：
The cold burnt foul waste gas flow is big, containing more volatile organic matter and hydrogen sulfide, using cold Jiao of coking plant The complete method and apparatus of foul waste gas treatment, many equipment are connected, and the tail gas concentration after purification is：VOCs：32.3mg/m3, vulcanization Hydrogen：2.67mg/m3, organic sulfur compound：1mg/m3, benzene homologues：0.52mg/m3.The content of gross contamination thing is in 36.49mg/m3, do not have There is secondary pollution, greatly improve the clean-up effect and treating capacity of waste gas.
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 cold burnt foul waste gas of coking plant process complete method, comprise the following steps：
(1) the cold burnt waste water from coke cooling water tank rushes vavuum pump through high-pressure hydraulic pump and water, is evacuated to coke drum for decoking process, profit Rushing the power that vavuum pump produces through water with coke cooling water will be delivered to a point flow container containing the coking waste gas of oil and gas, and waste gas is from dividing a liquid after point liquid Tank top is delivered to exhaust gas absorption device, and jetstream whirl absorber is provided with exhaust gas absorption device, in jetstream whirl absorber There is absorption and separation with alkali lye, discharged from absorber overhead without odour and mixed with air, heating furnace is delivered to by blower fan, Burnt as source of the gas；
(2) liquid phase mixture isolated through point flow container flows out from point flow container bottom, coke cooling water tank middle and upper part is back to, by cold Jiao The original oil removal systematic unity treatment of water pot；
(3) alkali lye after abundant Reaction Separation in swirl injection absorber, forms alkali through water pump transport injection emission-control equipment Slag is expelled to absorbent oxidation regeneration device by underflow opening, and regeneration Posterior circle is used.
2. method according to claim 1, it is characterised in that the coking foul waste gas composition described in step (1) includes Volatile organic matter VOCs, hydrogen sulfide, organic sulfur compound, account for more than the 98% of total coking waste gas.
3. method according to claim 1, it is characterised in that entrance VOCs concentration is no more than 5000mg/m3When, after purification VOCs contents reach 50mg/m3Below.
4. method according to claim 1, it is characterised in that coke cooling water and alkali lye described in step (2), (3) can be followed Ring is used.
5. a kind of cold burnt foul waste gas of coking plant process complete set of equipments, and the complete set of equipments includes：
The water being connected with high-pressure hydraulic pump (1) rushes vavuum pump (2), as power set, for coking foul waste gas provide transport；With water Point flow container (51) of vavuum pump connection is rushed, for separating gas-liquid two-phase；Alkali liquid tank (3) connects water pump (4), and it is gas that alkali lye is delivered to Liquid absorbing reaction provides the emission-control equipment (52) in place；Swirl injection absorber is provided with emission-control equipment (52) (53)；The heating furnace (7) being connected with blower fan (6), for the remaining combustible exhaust gas of purification of burning.
6. complete set of equipments according to claim 5, it is characterised in that on described point of flow container (51) and exhaust processor (52) Lower coaxial communication, a point flow container top is provided with escaping pipe, for the waste gas after point liquid to be passed through in emission-control equipment.
7. complete set of equipments according to claim 5, it is characterised in that the emission-control equipment (52) is provided with feed tube, Air inlet pipe, escaping pipe and drain pipe, are connected with the interior swirl injection absorber (53) for setting.
8. complete set of equipments according to claim 5, it is characterised in that the swirl injection absorber (53) is single-stage, many Level series connection and/or parallel connection.
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CN201720099815.9U Expired - Fee Related CN206604327U (en) 2016-06-30 2017-01-23 A kind of incineration tail gas dedusting and sulfur recovery system
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
CN201710058628.0A Pending CN106823576A (en) 2016-06-30 2017-01-23 A kind of method that heat-exchange dedusting device, the UTILIZATION OF VESIDUAL HEAT IN dusting and desulfuring system comprising it and UTILIZATION OF VESIDUAL HEAT IN are coupled with dedusting
CN201710058473.0A Pending CN106731550A (en) 2016-06-30 2017-01-23 One kind burns dusting and desulfuring system and its autocontrol method
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
CN201710062473.8A Pending CN106731616A (en) 2016-06-30 2017-01-25 A kind of industrial low pressure loss gas absorbing device and its absorption process
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
CN201720103756.8U Active CN206897093U (en) 2016-06-30 2017-01-25 A kind of coking plant low pressure loss gas recycling and processing device
CN201720103319.6U Expired - Fee Related CN206604368U (en) 2016-06-30 2017-01-25 A kind of industrial low pressure loss gas absorbing 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
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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
CN201710058628.0A Pending CN106823576A (en) 2016-06-30 2017-01-23 A kind of method that heat-exchange dedusting device, the UTILIZATION OF VESIDUAL HEAT IN dusting and desulfuring system comprising it and UTILIZATION OF VESIDUAL HEAT IN are coupled with dedusting
CN201710058473.0A Pending CN106731550A (en) 2016-06-30 2017-01-23 One kind burns dusting and desulfuring system and its autocontrol method
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
CN201710062473.8A Pending CN106731616A (en) 2016-06-30 2017-01-25 A kind of industrial low pressure loss gas absorbing device and its absorption process
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CN201720103756.8U Active CN206897093U (en) 2016-06-30 2017-01-25 A kind of coking plant low pressure loss gas recycling and processing device
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