CN103965970B - Treatment method for phenolic water produced by gas producer - Google Patents
Treatment method for phenolic water produced by gas producer Download PDFInfo
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- CN103965970B CN103965970B CN201310044739.8A CN201310044739A CN103965970B CN 103965970 B CN103965970 B CN 103965970B CN 201310044739 A CN201310044739 A CN 201310044739A CN 103965970 B CN103965970 B CN 103965970B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The invention provides a treatment method for phenolic water produced by a gas producer. According to the method, lower-segment high temperature gas of the gas producer heats and evaporates water so as to obtain high temperature steam, and the high temperature steam is used as an intermediate heat-transferring medium for heating air, thereby recovering heat in the high temperature gas; and a part of the produced high temperature steam atomizes phenolic water into tiny droplets through a steam atomizing nozzle, atomized phenolic water and the high temperature steam are used as a gasifying agent together and sent to the gas producer, and phenolic water is completely decomposed after burning at a high temperature of more than 1100 DEG C, producing no secondary pollution. Since the method adopts waste heat of the high temperature gas produced by the gas producer, no energy is consumed except a small amount of electric energy needed by a water pump, so operation cost is low, low temperature steam produced in the jacket of the gas producer can be recovered, and steam with higher pressure and temperature can be produced, which is more beneficial for utilization of steam.
Description
Technical field
The invention belongs to technical field of sewage, the process of the phenol water producing particularly to gas generator.
Background technology
Coal gas is widely used in the industries such as chemical industry, building materials, iron and steel as a kind of raw material of industry or industrial combustion gas, and it is
Pass through red-hot coal seam using water vapour, react with the coke of high temperature and produce gas, its Main Ingredients and Appearance be carbon monoxide,
Hydrogen, and the component such as a small amount of carbon dioxide, nitrogen and methane.During producing coal gas, can be along with hydrogen sulfide, Jiao
The generation of the pollutant such as oil, phenol water, wherein phenol water are a kind of pollutant of complicated component, and it is mainly by phenols, sulfide, cyaniding
Thing etc. forms.The discharge of phenol water severely impacts life and the health of environment and the mankind, gets over the requirement to environmental protection for the country
Come tighter, various places also progressively increase to the improvement of phenol water, its discharge index is also increasingly strict.
At present the process for phenol-containing wastewater can be divided into physical-chemical process and biochemical process, include steam chemistry dephenolize method,
Steam dephenolize method, burning method, resin dephenolize method, biochemical process etc., process most common for the phenol-containing wastewater that gas generator produces
Method be evaporated logos and burning method.Evaporated logos is phenol water to be carried out heating, is vaporized using vaporizer, and phenol water is contracted
Processed again after amount, the method has that vaporizer is perishable, the internal easily fouling of vaporizer, processing cost are high, phenol water disposal not
Completely the shortcomings of；And burning disposal method is that phenol-containing wastewater is sprayed into incinerator, make phenol organic matter in 1100 DEG C about of high temperature
Under, there is oxidation reaction, ultimately generate CO2And H2O discharges, and the many gas generators running at present are equipped with special burning
Stove facility, this method process is simple, easy to operate, but investment is big, high energy consumption.For directly phenol water being sprayed in gas generator
The method of row phenol water burning disposal, not only the operation to gas generator adversely affects the phenol water spraying into, and due to
Its phenol evaporation of water using the efficient heat remaining in stove, the increase of energy consumption can be led to.Data according to having delivered is seen, with
On whether all exist that equipment investment is big, energy resource consumption is high, operating cost is high etc. using physical-chemical process or biochemical process and lack
Point.
In addition, for the thermal efficiency improving gas generator, some gas generators adopt wall-type heat exchange equipment by height
The heat transfer of warm coal gas, to air, to improve the charging temperature of air, reaches the purpose of waste heat recovery, the method is brought
Problem is if heat transmission equipment produces leakage due to corrosion or other reason in running, then coal gas would be possible to and air
Blend, it is possible to leading to the danger of gas explosion.
Content of the invention
It is an object of the invention to provide a kind of coal gas producer phenol method for treating water, with coal gas of high temperature, water heating evaporation is become
High-temperature steam, high-temperature steam heats air again as intermediate heat transfer medium, to reclaim the energy in coal gas of high temperature, utilizes portion simultaneously
Divide high-temperature steam through steam atomization nozzle by droplet small for the chemical conversion of phenol water smoke, the phenol water after atomization and steam are collectively as coal gas
The gasifying agent of producer enters in stove, thus phenol water is incinerated, and remainder steam delivers to the steam user of outside.
The technical solution used in the present invention is：Water carries out heat exchange generation high temperature with the hypomere coal gas of high temperature of gas generator
Steam, part high-temperature steam transfers heat to the air required for gas generator, and air is heated；In addition part high temperature steams
, by phenol water atomization, the phenol water after atomization and steam are collectively as the gasifying agent of gas generator for vapour；The steam of remainder is delivered to
Outside steam user.
The heat-exchanger rig of generation high-temperature steam is water pipe or the smoke-fire-tube waste heat with preposition heat recovery hybrid heater
Boiler, in described waste heat boiler, from gas generator hypomere coal gas of high temperature by the heating evaporation that feeds water become pressure be 0.3～
3MPa, temperature is 134～234 DEG C of steam, and the temperature of coal gas is lowered to 140～180 DEG C.Described waste heat boiler instead of former
Coal gas air cooling device in production technology, while reducing gas temperature, has also reclaimed the waste heat in coal gas, has solved original production
Coal gas air cooling device environment air cooling in technique, the energy dissipation problem that heat runs off with ambient wind and leads to.
Described preposition heat recovery hybrid heater is arranged in before waste heat boiler along feedwater flow direction, is one directly to mix
Formula heater, from gas generator chuck Low Temperature Steam enter described preposition heat recovery hybrid heater hydrospace with
The feedwater direct contact heat transfer of waste heat boiler, Low Temperature Steam is condensed into and while water heats the feedwater of waste heat boiler, thus
Reach the recovery energy of Low Temperature Steam and the purpose of condensate；Described waste heat boiler carries economizer, mixes in preposition heat recovery
Close the feedwater after being heated in heater, enter the economizer of described waste heat boiler after feed pump pressurization, in described economizer
In be further heated after, enter waste heat boiler.Do not affect coal gas because the pressure of waste heat boiler can easily be adjusted
Production technology, so its produce steam can reach higher pressure and temperature, so not only reclaimed gas generator
The energy of the Low Temperature Steam being produced, and the steam of higher quality can be obtained, it is more beneficial for the utilization of steam.
Steam-air heat exchanger is disposed with the air line before gas generator, in described steam-air heat exchanger
Interior, air is heated to 120～200 DEG C by high-temperature steam, and steam is condensed into condensate simultaneously, and condensate enters preposition heat and returns
Receive hybrid heater, to reclaim the heat contained by condensate and condensate.
Phenol water smoke is melted into the mist droplet that diameter is less than 100 microns through steam atomization nozzle by high-temperature steam, and in steam
Uniformly mix, the gasifying agent collectively as gas generator enters gas generator, phenol water is through more than 1100 DEG C of high temperature incineration
It is completely broken down after process, non-secondary pollution, and fully enter in gas generator stove after being atomized by high-temperature steam due to phenol water,
So no phenol water residual, it is to avoid the debris concentration existing for phenol water evaporation facture is high, needs after-treatment, vaporizer is perishable
Erosion and the shortcoming of fouling.Described steam atomization nozzle is arranged on a mixing interior, and described mixing chamber is made up of inside and outside two sleeve pipes,
The mixture of the phenol water after atomization and steam enters the inner sleeve of described mixing chamber, and the air after heating passes through described mixing simultaneously
Close the inner sleeve of room and trocar sheath, and in the inner sleeve of described mixing chamber with atomization after phenol water and the mixture of steam mix
Close, subsequently into gas generator；Because the inside and outside wall of inner sleeve is all by hot air, its wall surface temperature is than the wall of trocar sheath
Face temperature is high, gathers thus avoiding the phenol water after atomization and being sprayed directly on to the mist droplet after leading to atomization on the tube wall of trocar sheath
Integrated big water droplet and in pipeline produce phenol water residual problem.
The invention has the beneficial effects as follows：By the heat transfer of coal gas of high temperature feeds water, and water heating evaporation is become high temperature
Steam, heats air using high-temperature steam, due to heating air using high-temperature steam, while energy is recycled, it is to avoid
When coal gas and air direct heat transfer by heat exchanger corrosion issuable leakage, blending and the coal that thus may lead to
The danger that air blasting is exploded.Phenol water is atomized into small droplet by high-temperature steam, is admitted to coal with high-temperature steam collectively as gasifying agent
In gas producer, phenol water is completely broken down after processing through more than 1100 DEG C of high temperature incineration, non-secondary pollution.Due in this process
In use in addition to the waste heat of the produced coal gas of high temperature of gas generator, a small amount of electric energy needed for except water pump, no other energy disappear
Consumption, solves the problems, such as to need other incinerator and the extra energy low to process phenol water, operating cost in original production process.
In addition, the temperature of coal gas can be reduced with reference to preposition heat recovery hybrid heater one side using waste heat boiler, thus substituting
Coal gas air cooling device in original production process, on the other hand can be produced with the waste heat in gas recovery and gas generator chuck
The energy of Low Temperature Steam, obtains the higher steam of pressure and temperature, while saving energy, improves the quality of steam, more have
Utilization beneficial to steam.
The invention is particularly suited to the process of phenol water of gas generator generation and gas generator heat recovery.
Brief description
Accompanying drawing is the system diagram of coal gas producer phenol water treatment system embodiment.
In figure：1st, gas generator, 2, hypomere coal gas of high temperature, 3, high-temperature steam, 4, waste heat boiler, 5, point drum, 6, outer
Send steam, 7, economizer, 8, feed pump, 9, preposition heat recovery hybrid heater, 10, feedwater, 11, softening water tank, 12, condense
Water, 13, steam-air heat exchanger, 14, heating air steam, 15, pressure fan, 16, cold air, 17, phenol water pump, 18, phenol water
Water tank, 19, phenol water, 20, atomizer steam, 21, mixing chamber, 22, steam atomization nozzle, 23, mixing chamber inner sleeve, 24,
Mixing outdoor bushing, 25, Low Temperature Steam.
Specific embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail：
In the embodiment shown in the drawings, the hypomere coal gas of high temperature 2 from gas generator 1 enters waste heat boiler 4, in waste heat
Transfer heat to the feedwater in waste heat boiler in boiler 4, produce high-temperature steam 3, then high-temperature steam 3 enters a point drum 5.Cold
Air 16 through pressure fan 15 enter steam-air heat exchanger 13 air duct, in steam-air heat exchanger 13, from point
The heating air steam 14 of drum 5 transfers heat to air, and air is heated, and the hot-air after being heated enters mixing chamber
21, meanwhile, the heating air steam 14 entering in the steam channel of steam-air heat exchanger 13 is condensed into condensate, coagulates
Bear water 12 entrance preposition heat recovery hybrid heater 9.Phenol water 19 in coal gas preparation process enters phenol water tank 18, from
Phenol water tank 18 phenol water out, after phenol water pump 17 pressurization, enters the steam atomization nozzle being arranged in mixing chamber inner sleeve 23
22, small droplet is atomized into by the atomizer steam 20 from point drum 5, the air after heating passes through mixing chamber simultaneously
Inner sleeve 23 and mixing outdoor bushing 24, and in mixing chamber inner sleeve 23 with atomization after phenol water and the mixture of steam mix
Close, subsequently into gas generator 1, phenol water is completely broken down after processing through more than 1100 DEG C of high temperature incineration.Come from coal gas
The Low Temperature Steam 25 of producer chuck enters in preposition heat recovery hybrid heater 9, with the feedwater 10 from softening water tank 11
Directly the feedwater 10 of waste heat boiler is heated while Low Temperature Steam 25 is condensed into water by mixed heat transfer, simultaneously with entrance institute
The condensate 12 stating preposition heat recovery hybrid heater 9 mixes, and then after feed pump 8 pressurization, is entered remaining by economizer 7
Heat boiler 4；In economizer 7, feedwater is heated further by the coal gas out from waste heat boiler, and the temperature of coal gas is entered one simultaneously
Step reduces.Unnecessary high-temperature steam from point drum 5 gives external steam user as sending steam 6 outside.
Claims (6)
1. a kind of coal gas producer phenol method for treating water, is characterized in that：Water carries out heat with the hypomere coal gas of high temperature of gas generator
Exchange and produce high-temperature steam, part high-temperature steam transfers heat to the air required for gas generator, air is heated；Separately
, by phenol water atomization, the phenol water after atomization and steam are collectively as the gasifying agent of gas generator for outer portion high-temperature steam；Remainder
The steam dividing delivers to the steam user of outside；
The steam atomization nozzle that phenol water atomization uses is arranged on a mixing interior, and described mixing chamber is made up of inside and outside two sleeve pipes,
The mixture of the phenol water after atomization and steam enters the inner sleeve of described mixing chamber, and the air after heating passes through described mixing simultaneously
Close the inner sleeve of room and trocar sheath, and in the inner sleeve of described mixing chamber with atomization after phenol water and the mixture of steam mix
Close, subsequently into gas generator.
2. coal gas producer phenol method for treating water according to claim 1, is characterized in that：Produce the heat-exchanger rig of high-temperature steam
It is the water pipe with preposition heat recovery hybrid heater or smoke-fire-tube waste heat boiler, in described waste heat boiler, from coal gas
It is 0.3 ~ 3 MPa that the heating evaporation that feeds water is become pressure by the hypomere coal gas of high temperature of producer, and temperature is 134 ~ 234 DEG C of steam, coal
The temperature of gas is lowered to 140 ~ 180 DEG C.
3. the coal gas producer phenol method for treating water described in 1 is wanted according to right, it is characterized in that：Preposition heat recovery hybrid heater
It is arranged in before waste heat boiler along feedwater flow direction, be a direct contact(-type) heater, from the low temperature of gas generator chuck
Steam enters the hydrospace of described preposition heat recovery hybrid heater and the feedwater direct contact heat transfer of waste heat boiler, and low temperature steams
Vapour is condensed into and while water heats the feedwater of waste heat boiler.
4. the coal gas producer phenol method for treating water described in 3 is wanted according to right, it is characterized in that：Described waste heat boiler carries and saves coal
Device, the feedwater after being heated in preposition heat recovery hybrid heater, enter described waste heat boiler after feed pump pressurization
Economizer, after being further heated, enters waste heat boiler in described economizer.
5. the coal gas producer phenol method for treating water described in 3 is wanted according to right, it is characterized in that：Air hose before gas generator
Steam-air heat exchanger is disposed with road, in described steam-air heat exchanger, air is heated to 120 ~ 200 by high-temperature steam
DEG C, steam is condensed into condensate simultaneously, and condensate enters described preposition heat recovery hybrid heater.
6. coal gas producer phenol method for treating water according to claim 1, is characterized in that：High-temperature steam is through steam atomization nozzle
Phenol water smoke is melted into the mist droplet that diameter is less than 100 microns, and uniformly mixes with steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044739.8A CN103965970B (en) | 2013-02-05 | 2013-02-05 | Treatment method for phenolic water produced by gas producer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044739.8A CN103965970B (en) | 2013-02-05 | 2013-02-05 | Treatment method for phenolic water produced by gas producer |
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| Publication Number | Publication Date |
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| CN103965970A CN103965970A (en) | 2014-08-06 |
| CN103965970B true CN103965970B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310044739.8A Active CN103965970B (en) | 2013-02-05 | 2013-02-05 | Treatment method for phenolic water produced by gas producer |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445698B (en) * | 2014-12-09 | 2016-02-03 | 天津渤化永利化工股份有限公司 | A kind of broken coal gasification phenolic wastewater pyrolysis treating method |
| CN104482550B (en) * | 2015-01-05 | 2017-01-11 | 金刚新材料股份有限公司 | Method and system for processing and utilizing phenol water through rotary kiln |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5827790A (en) * | 1981-08-12 | 1983-02-18 | Hitachi Ltd | Gasifying device |
| CN1162624A (en) * | 1996-04-16 | 1997-10-22 | 陈绍维 | Process of two stage furnace water gas plant and treatment of phenol containing water |
| CN101126035A (en) * | 2007-09-18 | 2008-02-20 | 山东义升环保设备有限公司 | Phenol water closed operation high-conversion coal gasification production technique |
| CN101280223A (en) * | 2008-04-14 | 2008-10-08 | 山东联合能源技术有限公司 | Integrated gasification combined cycle thermoelectric oil gas multi-production process for efficient clean region |
| CN201756539U (en) * | 2010-08-03 | 2011-03-09 | 淄博强能热能环保设备有限公司 | Two-section gas producer phenolic water treatment device |
| CN201915072U (en) * | 2010-11-08 | 2011-08-03 | 江苏龙腾中和环境工程有限公司 | Novel gas phenolic water processing device |
-
2013
- 2013-02-05 CN CN201310044739.8A patent/CN103965970B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5827790A (en) * | 1981-08-12 | 1983-02-18 | Hitachi Ltd | Gasifying device |
| CN1162624A (en) * | 1996-04-16 | 1997-10-22 | 陈绍维 | Process of two stage furnace water gas plant and treatment of phenol containing water |
| CN101126035A (en) * | 2007-09-18 | 2008-02-20 | 山东义升环保设备有限公司 | Phenol water closed operation high-conversion coal gasification production technique |
| CN101280223A (en) * | 2008-04-14 | 2008-10-08 | 山东联合能源技术有限公司 | Integrated gasification combined cycle thermoelectric oil gas multi-production process for efficient clean region |
| CN201756539U (en) * | 2010-08-03 | 2011-03-09 | 淄博强能热能环保设备有限公司 | Two-section gas producer phenolic water treatment device |
| CN201915072U (en) * | 2010-11-08 | 2011-08-03 | 江苏龙腾中和环境工程有限公司 | Novel gas phenolic water processing device |
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Effective date of registration: 20170110 Address after: 255000 Shandong city of Zibo province high tech Zone Willow Road No. 125 advanced ceramics industry innovation park, block B No. 2503 Applicant after: ZIBO INNOVATION ENERGY TECHNOLOGY CO., LTD. Address before: 250061 Shandong Second Ring Road, Ji''nan, No. 12550, Nanshan District, building 1, unit 502, No. 16 Applicant before: Luan Tao Applicant before: Sun Qingguo |
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