CN110451595A - A kind of method of coking wastewater harmless treatment - Google Patents

A kind of method of coking wastewater harmless treatment Download PDF

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Publication number
CN110451595A
CN110451595A CN201910558287.2A CN201910558287A CN110451595A CN 110451595 A CN110451595 A CN 110451595A CN 201910558287 A CN201910558287 A CN 201910558287A CN 110451595 A CN110451595 A CN 110451595A
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CN
China
Prior art keywords
coking wastewater
coking
coal
wastewater
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910558287.2A
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Chinese (zh)
Inventor
张颂
姚良雨
李枫
孟影子
李想
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lin Huan Coking Limited-Liability Co
Linhuan Coking and Chemical Co Ltd
Original Assignee
Lin Huan Coking Limited-Liability Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lin Huan Coking Limited-Liability Co filed Critical Lin Huan Coking Limited-Liability Co
Priority to CN201910558287.2A priority Critical patent/CN110451595A/en
Publication of CN110451595A publication Critical patent/CN110451595A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
    • C10L1/326—Coal-water suspensions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

Gasification furnace gasification central temperature is utilized the invention discloses a kind of, the method of harmless treatment coking wastewater, the processes such as collection, slurrying, conveying and gasification including coking wastewater are allowed to the toxic organics matter such as phenol, cyanogen, benzene, ammonia nitrogen in coking wastewater to be ultimately breaks down into CO2And H2O, it is without secondary pollution.Technique of the invention solves the problems, such as Treatment of Coking Effluent and simple process, the big status of wastewater treatment capacity, eliminates sewage treatment facility, and investment reduction is closely tens million of, the harmless treatment of coking wastewater and recycling for resource are realized, there is significant environmental benefit and social benefit.

Description

A kind of method of coking wastewater harmless treatment
Technical field
The invention belongs to Technologies of Coke Plant Wastewater Treatment field, and in particular to a kind of method of coking wastewater harmless treatment.
Background technique
Coking wastewater be mainly coal high-temperature retorting, gas purification and change Product recycling during generate containing volatilization The industrial wastewater of the heterocyclic compounds such as phenol, polycyclic aromatic hydrocarbon and oxygen, sulphur, nitrogen.It is a kind of high CODcr, high phenol value, high ammonia nitrogen and very A kind of intractable industrial organic waste water.Coking wastewater have water quality and quantity change greatly, complicated component, organic matter is especially difficult to drop Solve high organic content, the features such as ammonia nitrogen concentration is high.The processing of coking wastewater is always a problem of field of waste water treatment.
Coke-oven waste water feature mainly includes following characteristics: (1) pollutant component is complicated, and pollutant load is high, contains volatilization The heterocyclic compounds such as phenol, polycyclic aromatic hydrocarbon and oxygen, sulphur, nitrogen；(2) contain poisonous and harmful substance in waste water, containing a large amount of phenol, cyanogen, The poisonous and harmful substances such as benzene, ammonia nitrogen, wherein much belonging to the bioactive substance for having carcinogenic mutagenesis；(3) coke-oven waste water is very Difficult, processing cost is higher.
The deficiency of coke-oven waste water processing method at present: (1) biochemical sludge facture: processing engineering complexity investment is big, And sewage quantity, pollutant concentration are unstable causes activated sludge to be hit to handle unstable quality；(2) it is used for wet quenching: making At enriching pollutants and pollution atmosphere, halted by National Environmental Protection Agency；(3) tertiary treatment (advanced treating): it is with high content of technology, Small scale, investment is huge, cannot also reach discharge standard.
Therefore, coking wastewater is handled how innoxiously, mitigates environmental pressure, will become the one of the environmental protection of modern coking industry The direction of a important topic and coking worker and industry practitioner effort always.
Summary of the invention
In view of the foregoing, it is an object to provide a kind of utilize gasification furnace gasification central temperature, innoxious place The method for managing coking wastewater, the processes such as collection, slurrying, conveying, gasification including coking wastewater；The present invention solves coking wastewater The problem of processing, simple process, wastewater treatment capacity are big.
To achieve the goals above, the technical scheme adopted by the invention is as follows: a kind of coking wastewater method for innocent treatment, Collection, slurrying including coking wastewater, conveying, gasification make the phenol in coking wastewater, cyanogen, benzene, ammonia nitrogen etc. are poisonous and harmful to have Machine substance is ultimately breaks down into innocuous substance；Specific step is as follows:
(1) collection of coking wastewater: the waste water in coking production is collected；
(2) additive and coking wastewater: being uniformly mixed by slurrying by a certain percentage, then again with the carbon substrate of break process Material is sent into pulper and carries out slurrying, be allowed to be formed additive level 0.01%~10%, coking wastewater content 10%~80%, The water-coal-slurry of carbon-based material content 20%~90%；
(3) it conveys: the water-coal-slurry that step (2) obtains is conveyed into gasification furnace by delivery pump；
(4) gasify: gasification furnace, which is warming up to 1550-1650 DEG C, completely vaporizes water-coal-slurry, and the product after vaporization is CO2With H2O。
In step (1), the waste water in the coking production includes the ammonia generated in the dry distillation of coal and coal gas cooling Water, in the benzene-containing wastewater that the oily waste water and crude benzene refining generated during gas purification generates any one or it is more Kind.
In step (2), the carbon-based material includes to discard oil plant, coal, any one in coke and biomass Or it is a variety of.
In step (2), carbon-based material granularity after break process is not more than 50 mesh；The purpose of break process It is the contact area in order to increase carbon-based material Yu additive and coking wastewater mixture, so that mixed pulp is more evenly.
In step (2), the ingredient of the additive include: alkali lignin 30-45%, carboxymethyl cellulose 20-32%, Anionic polyacrylamide 12-18%, grey water dispersant 15-20%, surface modifier 2-5% and defoaming agent 1-3%；Additive Each ingredient compounding after be added purpose be make the effects on slurry making of coal slurry is good, viscosity of coal slurry be easy adjust, coal slurry obtained have it is excellent Good mobility and stability.
Water-coal-slurry (including water coke slurry, water slurry oil, oil coke starch) main component be carbon-based material (coal, coke powder, oil plant), Water, additive etc. can be loaded and unloaded, transport, store and be pumped, be atomized as liquid fuel at what is be grouped as.Water-coal-slurry can replace The fuel that coal, petroleum coke, coke biomass use on coal gasifier.Coal water slurry gasification central temperature reaches 1600 DEG C, so High temperature is ultimately breaks down into after can making the poisonous and harmful substances completely burned such as the phenol contained in coking wastewater, cyanogen, benzene, ammonia nitrogen CO2And H2O is without secondary pollution.
Beneficial effects of the present invention: coking wastewater method for innocent treatment of the invention, it is thorough using the high temperature of gasification furnace The toxic organics matter such as phenol, cyanogen, benzene, ammonia nitrogen in combustion decomposition coking wastewater are allowed to be ultimately breaks down into CO2And H2O, without two Secondary pollution；Technique of the invention solves the problems, such as that Treatment of Coking Effluent and simple process, the big status of wastewater treatment capacity save Sewage treatment facility is fallen, investment reduction is closely tens million of, realizes the harmless treatment of coking wastewater and recycling for resource (recycling of such as discarded oil plant), has significant environmental benefit and social benefit.
Detailed description of the invention
Fig. 1 is the process flow chart of coking wastewater method for innocent treatment of the invention.
Specific embodiment
The following further describes the present invention with reference to the drawings.
As shown in Figure 1, a kind of coking wastewater method for innocent treatment, collection, slurrying including coking wastewater, conveying, gas Change process makes the toxic organics matter such as the phenol in coking wastewater, cyanogen, benzene, ammonia nitrogen be ultimately breaks down into innocuous substance；Specific step It is rapid as follows:
(1) collection of coking wastewater: such as to the waste water in coking production: the ammonia generated in the dry distillation of coal and coal gas cooling Water, any one or more in the benzene-containing wastewater that the oily waste water and crude benzene refining generated during gas purification generates It is collected；
(2) additive and coking wastewater: being uniformly mixed by slurrying by a certain percentage, then again with the carbon substrate of break process Expect such as to discard oil plant, coal, any one or more in coke and biomass, which is sent into pulper, carries out slurrying, is allowed to be formed Additive level 0.01%~10%, coking wastewater content 10%~80%, the water-coal-slurry of carbon-based material content 20%~90%；
(3) it conveys: the water-coal-slurry that step (2) obtains is conveyed into gasification furnace by delivery pump；
(4) gasify: gasification furnace, which is warming up to 1550-1650 DEG C, completely vaporizes water-coal-slurry, and the product after vaporization is CO2With H2O。
In step (2), carbon-based material granularity after break process is not more than 50 mesh；The purpose of break process It is the contact area in order to increase carbon-based material Yu additive and coking wastewater mixture, so that mixed pulp is more evenly.
In step (2), the ingredient of the additive include: alkali lignin 30-45%, carboxymethyl cellulose 20-32%, Anionic polyacrylamide 12-18%, grey water dispersant 15-20%, surface modifier 2-5% and defoaming agent 1-3%；Additive Each ingredient compounding after be added purpose be make the effects on slurry making of coal slurry is good, viscosity of coal slurry be easy adjust, coal slurry obtained have it is excellent Good mobility and stability.
Coking wastewater method for innocent treatment of the invention, using in the thorough combustion decomposition coking wastewater of the high temperature of gasification furnace The toxic organics matter such as phenol, cyanogen, benzene, ammonia nitrogen be allowed to be ultimately breaks down into CO2And H2O, it is without secondary pollution；Work of the invention Skill solves the problems, such as that Treatment of Coking Effluent and simple process, the big status of wastewater treatment capacity eliminate sewage treatment facility, Investment reduction is closely tens million of, realizes the harmless treatment of coking wastewater and recycling for resource, has significant Environmental Effect Benefit and social benefit.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way Limitation, as long as the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without changing It is within the scope of the present invention into the conception and technical scheme of the invention are directly applied to other occasions.

Claims (5)

1. a kind of coking wastewater method for innocent treatment, which is characterized in that collection, slurrying, conveying, gasification including coking wastewater Process makes the toxic organics matter such as the phenol in coking wastewater, cyanogen, benzene, ammonia nitrogen be ultimately breaks down into innocuous substance；Specific steps It is as follows:
(1) collection of coking wastewater: the waste water in coking production is collected；
(2) additive and coking wastewater: being uniformly mixed by slurrying by a certain percentage, then send again with the carbon-based material of break process Enter and carry out slurrying in pulper, is allowed to be formed additive level 0.01%~10%, coking wastewater content 10%~80%, carbon-based The water-coal-slurry of material content 20%~90%；
(3) it conveys: the water-coal-slurry that step (2) obtains is conveyed into gasification furnace by delivery pump；
(4) gasify: gasification furnace, which is warming up to 1550-1650 DEG C, completely vaporizes water-coal-slurry.
2. a kind of coking wastewater method for innocent treatment according to claim 1, which is characterized in that in step (1), institute The waste water in coking production stated includes the ammonium hydroxide generated in the dry distillation of coal and coal gas cooling, is produced during gas purification Come oily waste water and crude benzene refining generate benzene-containing wastewater in any one or more.
3. a kind of coking wastewater method for innocent treatment according to claim 1, which is characterized in that in step (2), institute The carbon-based material stated includes to discard oil plant, coal, any one or more in coke and biomass.
4. a kind of coking wastewater method for innocent treatment according to claim 1, which is characterized in that in step (2), institute The carbon-based material stated granularity after break process is not more than 50 mesh.
5. a kind of coking wastewater method for innocent treatment according to claim 1, which is characterized in that in step (2), institute The ingredient for stating additive includes: alkali lignin 30-45%, carboxymethyl cellulose 20-32%, anionic polyacrylamide 12- 18%, grey water dispersant 15-20%, surface modifier 2-5% and defoaming agent 1-3%.
CN201910558287.2A 2019-06-26 2019-06-26 A kind of method of coking wastewater harmless treatment Pending CN110451595A (en)

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Application Number Priority Date Filing Date Title
CN201910558287.2A CN110451595A (en) 2019-06-26 2019-06-26 A kind of method of coking wastewater harmless treatment

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112300843A (en) * 2020-10-23 2021-02-02 吕梁学院 Processing technology for fully and comprehensively utilizing coking chemical industry phenol-cyanogen wastewater
CN114196452A (en) * 2021-12-23 2022-03-18 新疆中泰创新技术研究院有限责任公司 Method for preparing high-alkali coal-water coal slurry from coking wastewater

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CN105062567A (en) * 2015-07-20 2015-11-18 神华集团有限责任公司 Preparation method of water gas
CN106433823A (en) * 2016-10-31 2017-02-22 中冶华天工程技术有限公司 System for preparing coal water slurry by mixing coke powder with coking wastewater
CN107057787A (en) * 2017-03-21 2017-08-18 浙江大学 The method that coal conversion waste water cascade utilization prepares fuel slurry
CN109135854A (en) * 2018-11-09 2019-01-04 浙江工业大学 A kind of water-coal-slurry and preparation method thereof using the preparation of waste active carbon, organic liquid waste and coal
CN109251773A (en) * 2018-09-18 2019-01-22 西安三瑞实业有限公司 A kind of coal and semicoke are the method that raw material composite waste prepares water-coal-slurry

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105062567A (en) * 2015-07-20 2015-11-18 神华集团有限责任公司 Preparation method of water gas
CN106433823A (en) * 2016-10-31 2017-02-22 中冶华天工程技术有限公司 System for preparing coal water slurry by mixing coke powder with coking wastewater
CN107057787A (en) * 2017-03-21 2017-08-18 浙江大学 The method that coal conversion waste water cascade utilization prepares fuel slurry
CN109251773A (en) * 2018-09-18 2019-01-22 西安三瑞实业有限公司 A kind of coal and semicoke are the method that raw material composite waste prepares water-coal-slurry
CN109135854A (en) * 2018-11-09 2019-01-04 浙江工业大学 A kind of water-coal-slurry and preparation method thereof using the preparation of waste active carbon, organic liquid waste and coal

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112300843A (en) * 2020-10-23 2021-02-02 吕梁学院 Processing technology for fully and comprehensively utilizing coking chemical industry phenol-cyanogen wastewater
CN114196452A (en) * 2021-12-23 2022-03-18 新疆中泰创新技术研究院有限责任公司 Method for preparing high-alkali coal-water coal slurry from coking wastewater

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Application publication date: 20191115