CN109607682A - A kind of comprehensive reutilization method of novel coke-oven plant HPF method coal gas desulfurization waste liquid - Google Patents
A kind of comprehensive reutilization method of novel coke-oven plant HPF method coal gas desulfurization waste liquid Download PDFInfo
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- CN109607682A CN109607682A CN201811441204.3A CN201811441204A CN109607682A CN 109607682 A CN109607682 A CN 109607682A CN 201811441204 A CN201811441204 A CN 201811441204A CN 109607682 A CN109607682 A CN 109607682A
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- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- 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
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/54—Preparation of sulfur dioxide by burning elemental sulfur
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- 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
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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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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- Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention relates to a kind of comprehensive reutilization methods of novel coke-oven plant HPF method coal gas desulfurization waste liquid, belong to combustion-gas jet test coal gas desulfurization field.This method successively includes that desulfurization waste liquor is concentrated to after concentration is about 40%-60% using millipore filter in the sulphur foam and desulfurization waste liquor that pretreatment workshop section generates HPF method coal gas desulfurization and is delivered to drying section by pretreatment workshop section, drying section and relieving haperacidity workshop section；By millipore filter, treated that clean solution returns to moisturizing of the coal gas desulfurization system as system, and the slurries after concentration are transported to drying section, after drying section is handled simple substance S and ammonium salt mixed powder it is last.The exhaust gas that drying section generates passes through purified treatment, then passes through chimney qualified discharge, and the powder after drying is burnt by sulfur furnace containing SO2Flue gas produce the qualified concentrated sulfuric acid using concentrated sulfuric acid preparation process, used for coke-oven plant's ammonium sulfate workshop section.The present invention effectively solves the problem of that the problems such as operation risk that the waste liquid that HPF method coal gas desulfurization in coke-oven plant generates generates, environmental protection avoids generating that a large amount of dilute sulfuric acid, waste water etc. are a series of to be existed.Meanwhile the concentrated sulfuric acid of generation has very big economic benefit.
Description
Method field
The present invention relates to a kind of comprehensive reutilization methods of novel coke-oven plant HPF method coal gas desulfurization waste liquid, belong to combustion-gas jet test
Coal gas desulfurization field.
Background method
The coal gas desulfurization waste liquid and coke-oven plant that coke-oven plant is now run use HPF method to carry out desulfuration and decyanation to coke-stove gas, wherein giving birth to
At sulphur foam solution, sulphur cream then is produced using plate and frame filter press.There are also side reactions to generate three kinds of ammonium salts, commonly known as secondary salt,
It after secondary salt runs up to a certain concentration, needs to reduce salt content in desulfurization waste liquor using salt extraction technique, to meet desulphurization system fortune
Row requires.The sulphur cream generated simultaneously becomes solid hazardous waste, and third party is needed to handle, the mixing ammonium that salt extraction technique generates
Salt, it is also necessary to the higher ammonium salt of purity is generated after smart salt extraction technique, but this ammonium salts market has been in supersaturated shape
State also becomes solid hazardous waste.Therefore, operation process generates several solid hazardous wastes at present, it is difficult to handle,
It cannot meet environmental requirements, there is very big environmentally friendly risk.
There are two types for the treatment of process at present: first is that smart salt extraction technique is passed through the salt in desulfurization waste liquor using smart salt extraction technique
Smart salt extraction technique prepares high-purity refined salt, as industrial chemicals.There are problems: this ammonium salts market is supersaturated at present, long
This can also become secondary pollution in the past；Sulphur cream needs individually processing, is unsatisfactory for environmental requirement；Second is that wet process/half wet process relieving haperacidity
Sulphur foam solution is sent into sulphur centrifuge, is centrifuged, filtrate largely sends desulfurization unit back to, and portion filtrate send dense by technique
Contracting tower thickening, the sulphur cream then separated with centrifuge mix, and raw material sulphur slurry is made, slurries storage tank is sent into, through atomizer
Enter in incinerator after being atomized with compressed air, combustion-supporting oxygen-enriched air and coal gas are passed through in furnace, the sulphur after atomization is starched about 1100
DEG C~1200 DEG C at a temperature of burned, through heat recovery, purification, conversion, absorption technique process, produce sulfuric acid.There are problems:
Energy consumption is high, and equipment material requires high；Dilute sulfuric acid yield is big, can not handle in relieving haperacidity process, needs in addition to handle；Combustion system is multiple
It is miscellaneous unstable；When system has maintenance, needing to store a large amount of pulpous state sulphur foams, condition of storage requires height, and is easy to happen leakage,
Environment is affected greatly；It is high that sulphur starches ignition temperature, is also easy to produce NOx, and tail gas NOx, can in sulfuric acid product there are exceeded possibility
Nitric acid (nitrous acid) can be contained.
Summary of the invention:
In order to make up the deficiency of existing method, the present invention provides a kind of small investment, low energy consumption and the novel coke-oven plant HPF of environmental protection
The comprehensive reutilization method of method coal gas desulfurization waste liquid.
The present invention is that scheme is realized by the following method:
A kind of comprehensive reutilization method of novel coke-oven plant HPF method coal gas desulfurization waste liquid successively includes pretreatment workshop section, dry
Workshop section and relieving haperacidity workshop section, it is characterized in that:
1) workshop section is pre-processed:
In the sulphur foam and desulfurization waste liquor that pretreatment workshop section generates concentration 22-28% HPF method coal gas desulfurization, using micropore mistake
Desulfurization waste liquor is concentrated to after concentration is about 40%-60% and is delivered to drying section by filter；
2) drying section:
By millipore filter, treated that clean solution returns to moisturizing of the coal gas desulfurization system as system, produces in drying process
Raw exhaust gas is handled by exhaust treatment system, is then passed through chimney qualified discharge, is then transported to the slurries after concentration dry
Dry workshop section obtains simple substance S and ammonium salt mixed powder end after drying section is handled.
3) relieving haperacidity workshop section:
The exhaust gas that drying section generates passes through purified treatment, then passes through chimney qualified discharge, and the powder after drying is by burning sulphur
Furnace is burnt into containing SO2Flue gas produce the qualified concentrated sulfuric acid, make for coke-oven plant's ammonium sulfate workshop section using concentrated sulfuric acid preparation process
With.
Preferably, the capital equipment of the pretreatment workshop section includes desulfurization waste liquor storage tank, delivery pump, and millipore filter is dense
Slurry tank, clear liquid case and clear liquid delivery pump；The sulphur foam and desulfurization waste liquor that 22-28%HPF method coal gas desulfurization is generated first
By delivery pump, it is transported to desulfurization waste liquor storage tank, desulfurization waste liquor, which is then sent to millipore filter concentration, with waste liquid delivery pump is
The underflow liquid of 40%-60%, clear liquid after millipore filter return to desulphurization system as moisturizing, the underflow liquid of sulfur-bearing and salt into
Enter underflow liquid case, is prepared to enter into drying section.
Preferably, the equipment of the drying section includes underflow liquid delivery pump, Rollingscratchboarddrier, clean solution tank, pipe chain
Conveyer, dried material warehouse, exhaust gas air-introduced machine, waste gas absorption tower, blowdown stack and clear liquid delivery pump, are conveyed by underflow liquid
Pump will be transported to Rollingscratchboarddrier by the underflow liquid of drying section, and the material after drying is scraped from roller by cutter,
Then dried material warehouse storage is sent to by pipeline chain conveyor, clear liquid is left to clean solution tank, conveys pumped back by clear liquid and locates in advance
Science and engineering section recycles, the exhaust gas of generation, after being sent to waste gas absorption tower by the collection of exhaust gas air-introduced machine, qualified discharge.
Preferably, the equipment of the relieving haperacidity workshop section mainly includes sulfur furnace, waste heat boiler, dynamic wave scrubber, converter,
First grade absorption tower, two-level absorption tower, air-introduced machine, vent gas treatment tower and blowdown stack, the material that drying section generates, which is sent to, burns sulphur
Furnace burns into the flue gas containing sulfur dioxide, after waste heat boiler absorbs waste heat, into after dynamic wave scrubber washing, purifying, so
Enter converter afterwards, be sulfur trioxide by Sulphur Dioxide, enters life after absorbing by first grade absorption tower and two-level absorption tower
The acid tank of the concentrated sulfuric acid is produced, the tail gas containing a small amount of sulfur dioxide is sent to vent gas treatment tower by air-introduced machine, and a small amount of sulfur dioxide enters acid
Change slot, supplies raw material of the external coke-oven plant as coke-oven plant's production ammonium sulfate liquor；By vent gas treatment tower treated tail gas
Pass through blowdown stack qualified discharge.
It is most energy saving under the following conditions by test of many times, flue-gas temperature 1000 after sulfur furnace burning ±
50 DEG C, after waste heat boiler, flue-gas temperature reduces by 320 ± 10 DEG C, subsequently into dynamic wave scrubber.
The present invention effectively solves the problems such as operation risk, environmental protection that the waste liquid of coke-oven plant HPF method coal gas desulfurization generation generates,
Roller scraper plate drying means+concentrated sulfuric acid preparation method is utilized simultaneously, solves before this that other process routes cause secondary pollution, is kept away
Exempt to lead to the problem of that a large amount of dilute sulfuric acid, waste water etc. are a series of to be existed.Meanwhile the concentrated sulfuric acid of generation has very big economic benefit.
Attached drawing:
Fig. 1 is process flow chart of the invention；
Attached drawing is a kind of specific embodiment of the invention.The embodiment successively includes pretreatment workshop section, drying section and towerman
Section, it is characterized in that: in sulphur foam and desulfurization waste liquor that pretreatment workshop section generates concentration for 22-28% HPF method coal gas desulfurization,
Desulfurization waste liquor is concentrated to after concentration is about 40%-60% using millipore filter and is delivered to drying section；By millipore filter
Treated, and clean solution returns to moisturizing of the coal gas desulfurization system as system, and the exhaust gas generated in drying process is by exhaust gas
The processing of reason system, then passes through chimney qualified discharge, the slurries after concentration is then transported to drying section, by drying section
Simple substance S and ammonium salt mixed powder end are obtained after processing.
Specific implementation one:
1, pre-process workshop section: this workshop section capital equipment has desulfurization waste liquor storage tank, delivery pump, millipore filter, underflow liquid case, clear liquid
Case and clear liquid delivery pump.
Specific implementation and arrangement technology process are as follows:
The sulphur foam and desulfurization waste liquor that 22% HPF method coal gas desulfurization is generated first are transported to desulfurization waste liquor by delivery pump
Then desulfurization waste liquor is sent to the underflow liquid that the concentration of millipore filter room temperature is 40% with waste liquid delivery pump, by micropore mistake by storage tank
Clear liquid after filter returns to desulphurization system as moisturizing, and the underflow liquid of sulfur-bearing and salt enters underflow liquid case, is prepared to enter into back tender
Section.
2, drying section: this workshop section capital equipment includes underflow liquid delivery pump, Rollingscratchboarddrier, clean solution tank, pipe chain
Conveyer, dried material warehouse, exhaust gas air-introduced machine, waste gas absorption tower, blowdown stack, clean solution tank, clear liquid delivery pump.
Specific implementation and arrangement technology process are as follows:
By underflow liquid delivery pump, the underflow liquid for pre-processing workshop section is transported to Rollingscratchboarddrier, it is dry after material from
It is scraped on roller by cutter, materials warehouse storage is then sent to by conveyer.Clear liquid is left to clean solution tank, is located in advance by pumped back
Science and engineering section recycles.The exhaust gas of generation, after being sent to waste gas absorption tower by air-introduced machine collection, qualified discharge.
3, relieving haperacidity workshop section: this workshop section capital equipment includes sulfur furnace, waste heat boiler, dynamic wave scrubber, converter, level-one
Absorption tower, two inhale tower, air-introduced machine, vent gas treatment tower, blowdown stack.
Specific implementation and arrangement technology process are as follows:
The material that drying section generates is sent to sulfur furnace and burns into the flue gas containing 1000 DEG C or so sulfur dioxide, by waste heat pot
After furnace absorbs waste heat, after flue-gas temperature is reduced to 320 DEG C or so entrance dynamic wave scrubber washing, purifyings, subsequently into conversion
Sulphur Dioxide is sulfur trioxide by tower, and the production concentrated sulfuric acid is entered after absorbing by first grade absorption tower and two-level absorption tower
Acid tank, the tail gas containing a small amount of sulfur dioxide are sent to vent gas treatment tower by air-introduced machine, and a small amount of sulfur dioxide enters acidification slot, and supply is outer
Raw material of the coke-oven plant, portion as coke-oven plant's production ammonium sulfate liquor；By vent gas treatment tower, treated that tail gas passes through blowdown stack
Qualified discharge.
Implement two；
1, pre-process workshop section: this workshop section capital equipment has desulfurization waste liquor storage tank, delivery pump, millipore filter, underflow liquid case, clear liquid
Case and clear liquid delivery pump.
Specific implementation and arrangement technology process are as follows:
The sulphur foam and desulfurization waste liquor that 25% HPF method coal gas desulfurization is generated first are transported to desulfurization waste liquor by delivery pump
Then desulfurization waste liquor is sent to the underflow liquid that the concentration of millipore filter room temperature is 50% with waste liquid delivery pump, by micropore mistake by storage tank
Clear liquid after filter returns to desulphurization system as moisturizing, and the underflow liquid of sulfur-bearing and salt enters underflow liquid case, is prepared to enter into back tender
Section.
2, drying section: this workshop section capital equipment includes underflow liquid delivery pump, Rollingscratchboarddrier, clean solution tank, pipe chain
Conveyer, dried material warehouse, exhaust gas air-introduced machine, waste gas absorption tower, blowdown stack, clean solution tank, clear liquid delivery pump.
Specific implementation and arrangement technology process are as follows:
By underflow liquid delivery pump, the underflow liquid for pre-processing workshop section is transported to Rollingscratchboarddrier, it is dry after material from
It is scraped on roller by cutter, materials warehouse storage is then sent to by conveyer.Clear liquid is left to clean solution tank, is located in advance by pumped back
Science and engineering section recycles.The exhaust gas of generation, after being sent to waste gas absorption tower by air-introduced machine collection, qualified discharge.
3, relieving haperacidity workshop section: this workshop section capital equipment includes sulfur furnace, waste heat boiler, dynamic wave scrubber, converter, level-one
Absorption tower, two inhale tower, air-introduced machine, vent gas treatment tower, blowdown stack.
Specific implementation and arrangement technology process are as follows:
The material that drying section generates is sent to sulfur furnace and burns into the flue gas containing 1050 DEG C of sulfur dioxide, inhales by waste heat boiler
After receiving waste heat, after flue-gas temperature is reduced to 330 DEG C of entrance dynamic wave scrubber washing, purifyings, subsequently into converter, by dioxy
Change sulphur and be converted into sulfur trioxide, the acid tank of the production concentrated sulfuric acid is entered after absorbing by first grade absorption tower and two-level absorption tower, containing few
The tail gas for measuring sulfur dioxide is sent to vent gas treatment tower by air-introduced machine, and a small amount of sulfur dioxide enters acidification slot, supplies external coke-oven plant
Raw material as coke-oven plant's production ammonium sulfate liquor；Pass through blowdown stack row up to standard by vent gas treatment tower treated tail gas
It puts.
1, pre-process workshop section: this workshop section capital equipment has a desulfurization waste liquor storage tank, delivery pump, millipore filter, underflow liquid case,
Clear liquid case and clear liquid delivery pump.
Specific implementation and arrangement technology process are as follows:
The sulphur foam and desulfurization waste liquor that 28% HPF method coal gas desulfurization is generated first are transported to desulfurization waste liquor by delivery pump
Then desulfurization waste liquor is sent to the underflow liquid that the concentration of millipore filter room temperature is 60% with waste liquid delivery pump, by micropore mistake by storage tank
Clear liquid after filter returns to desulphurization system as moisturizing, and the underflow liquid of sulfur-bearing and salt enters underflow liquid case, is prepared to enter into back tender
Section.
2, drying section: this workshop section capital equipment includes underflow liquid delivery pump, Rollingscratchboarddrier, clean solution tank, pipe chain
Conveyer, dried material warehouse, exhaust gas air-introduced machine, waste gas absorption tower, blowdown stack, clean solution tank, clear liquid delivery pump.
Specific implementation and arrangement technology process are as follows:
By underflow liquid delivery pump, the underflow liquid for pre-processing workshop section is transported to Rollingscratchboarddrier, it is dry after material from
It is scraped on roller by cutter, materials warehouse storage is then sent to by conveyer.Clear liquid is left to clean solution tank, is located in advance by pumped back
Science and engineering section recycles.The exhaust gas of generation, after being sent to waste gas absorption tower by air-introduced machine collection, qualified discharge.
3, relieving haperacidity workshop section: this workshop section capital equipment includes sulfur furnace, waste heat boiler, dynamic wave scrubber, converter, level-one
Absorption tower, two inhale tower, air-introduced machine, vent gas treatment tower, blowdown stack.
Specific implementation and arrangement technology process are as follows:
The material that drying section generates is sent to sulfur furnace and burns into the flue gas containing 950 DEG C of sulfur dioxide, inhales by waste heat boiler
After receiving waste heat, after flue-gas temperature is reduced to 310 DEG C of entrance dynamic wave scrubber washing, purifyings, subsequently into converter, by dioxy
Change sulphur and be converted into sulfur trioxide, the acid tank of the production concentrated sulfuric acid is entered after absorbing by first grade absorption tower and two-level absorption tower, containing few
The tail gas for measuring sulfur dioxide is sent to vent gas treatment tower by air-introduced machine, and a small amount of sulfur dioxide enters acidification slot, supplies external coke-oven plant
Raw material as coke-oven plant's production ammonium sulfate liquor；Pass through blowdown stack row up to standard by vent gas treatment tower treated tail gas
It puts.
The entire technical process of the present invention uses existing mature technology in addition to concentration technology, and method maturity is high, and risk is small,
It can uninterrupted continuous production.
It is that current several process routes compare (by processing 500m daily below3The project scale of desulfurization waste liquor compares)
By comparison, the discovery present invention has as follows a little:
1) drying process method is mature, advanced, simple, reliable, and energy consumption is less；
2) tail gas yield is small, and processing method is simple, meets emission request；
3) it can recycle to obtain the concentrated sulfuric acid, realize the comprehensive utilization of waste, high financial profit；
4) whole process emits no waste water；
5) it is small to prepare dilute sulfuric acid yield in sulfuric acid process, and can be used as the absorbent of vent gas treatment, also can be supplied to outside
It absorbs industry and goes sulphur ammonium system, the raw material as coke-oven plant's production ammonium sulfate liquor.
6) technical process control is simple, high degree of automation, can be with continuous production.
Meaning millipore filter room temperature of the invention is 25 DEG C of temperature.
Claims (5)
1. a kind of comprehensive reutilization method of novel coke-oven plant HPF method coal gas desulfurization waste liquid successively includes pretreatment workshop section, does
Dry workshop section and relieving haperacidity workshop section, it is characterized in that:
Pre-process workshop section:
In the sulphur foam and desulfurization waste liquor that pretreatment workshop section generates concentration 22-28% HPF method coal gas desulfurization, using micropore mistake
Desulfurization waste liquor is concentrated to after concentration is about 40%-60% and is delivered to drying section by filter；
2) drying section:
By millipore filter, treated that clean solution returns to moisturizing of the coal gas desulfurization system as system, produces in drying process
Raw exhaust gas is handled by exhaust treatment system, is then passed through chimney qualified discharge, is then transported to the slurries after concentration dry
Dry workshop section obtains simple substance S and ammonium salt mixed powder end after drying section is handled；
3) relieving haperacidity workshop section:
The exhaust gas that drying section generates passes through purified treatment, then passes through chimney qualified discharge, and the powder after drying is by burning sulphur
Furnace is burnt into containing SO2Flue gas produce the qualified concentrated sulfuric acid, make for coke-oven plant's ammonium sulfate workshop section using concentrated sulfuric acid preparation process
With.
2. the comprehensive reutilization method of novel coke-oven plant HPF method coal gas desulfurization waste liquid according to claim 1, feature
Be: the capital equipment of the pretreatment workshop section includes desulfurization waste liquor storage tank, delivery pump, millipore filter, underflow liquid case, clear liquid case
And clear liquid delivery pump；
The sulphur foam and desulfurization waste liquor that 25% HPF method coal gas desulfurization is generated first are transported to desulfurization waste liquor by delivery pump
Then desulfurization waste liquor is sent to millipore filter with waste liquid delivery pump and underflow liquid for 40%-60% is concentrated, by micropore mistake by storage tank
Clear liquid after filter returns to desulphurization system as moisturizing, and the underflow liquid of sulfur-bearing and salt enters underflow liquid case, is prepared to enter into back tender
Section.
3. the comprehensive reutilization method of novel coke-oven plant HPF method coal gas desulfurization waste liquid according to claim 1, feature
Be: the equipment of the drying section includes underflow liquid delivery pump, Rollingscratchboarddrier, clean solution tank, pipeline chain conveyor, dried object
Bin area, exhaust gas air-introduced machine, waste gas absorption tower, blowdown stack and clear liquid delivery pump will pass through drying by underflow liquid delivery pump
The underflow liquid of workshop section is transported to Rollingscratchboarddrier, and the material after drying is scraped from roller by cutter, then passes through pipe chain
Conveyer is sent to dried material warehouse storage, and clear liquid is left to clean solution tank, conveys pumped back by clear liquid and pre-processes workshop section's circulation benefit
With, the exhaust gas of generation, after being sent to waste gas absorption tower by the collection of exhaust gas air-introduced machine, qualified discharge.
4. the comprehensive reutilization method of novel coke-oven plant HPF method coal gas desulfurization waste liquid according to claim 1, feature
Be: the equipment of the relieving haperacidity workshop section mainly includes sulfur furnace, waste heat boiler, dynamic wave scrubber, converter, first grade absorption tower,
Two-level absorption tower, air-introduced machine, vent gas treatment tower and blowdown stack, the material that drying section generates are sent to sulfur furnace and burn into containing two
The flue gas of sulfur oxide, after waste heat boiler absorbs waste heat, into after dynamic wave scrubber washing, purifying, subsequently into conversion
Sulphur Dioxide is sulfur trioxide by tower, and the production concentrated sulfuric acid is entered after absorbing by first grade absorption tower and two-level absorption tower
Acid tank, the tail gas containing a small amount of sulfur dioxide are sent to vent gas treatment tower by air-introduced machine, and a small amount of sulfur dioxide enters acidification slot, and supply is outer
Raw material of the coke-oven plant, portion as coke-oven plant's production ammonium sulfate liquor；By vent gas treatment tower, treated that tail gas passes through blowdown stack
Qualified discharge.
5. the comprehensive reutilization method of novel coke-oven plant HPF method coal gas desulfurization waste liquid according to claim 3, feature
Be: 1000 ± 50 DEG C of flue-gas temperature after the sulfur furnace burning, after waste heat boiler, flue-gas temperature is reduced to 320 ± 10
DEG C, subsequently into dynamic wave scrubber.
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| CN110217760A (en) * | 2019-05-23 | 2019-09-10 | 北京科技大学 | A kind of desulphurization waste liquid of coke oven gas relieving haperacidity preparation process |
| CN111071995A (en) * | 2019-12-21 | 2020-04-28 | 山东绿知源环保工程有限公司 | Method for preparing industrial sulfuric acid by using sulfur-containing waste liquid |
| CN112110423A (en) * | 2020-11-03 | 2020-12-22 | 宁波中科远东催化工程技术有限公司 | System and method for preparing acid from desulfurization waste liquid |
| CN112225182A (en) * | 2020-10-19 | 2021-01-15 | 宁波中科远东催化工程技术有限公司 | System and method for preparing acid by utilizing industrial sulfur-containing waste |
| CN112408422A (en) * | 2020-09-29 | 2021-02-26 | 宁波中科远东催化工程技术有限公司 | Production of H from sulfur-containing waste2SO4System and method |
| CN113968574A (en) * | 2021-11-26 | 2022-01-25 | 山东绿知源环保工程有限公司 | Process for efficiently separating elemental sulfur from desulfurization solution and sulfur foam |
| CN114538385A (en) * | 2021-12-31 | 2022-05-27 | 新兴铸管股份有限公司 | Process for preparing concentrated sulfuric acid from desulfurization waste liquid by dry method |
| CN114853250A (en) * | 2022-06-06 | 2022-08-05 | 萍乡市新安环保工程有限公司 | Coking desulfurization foam and waste liquid drying equipment and method for drying coking desulfurization foam and waste liquid by using same |
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| CN111071995A (en) * | 2019-12-21 | 2020-04-28 | 山东绿知源环保工程有限公司 | Method for preparing industrial sulfuric acid by using sulfur-containing waste liquid |
| CN112408422A (en) * | 2020-09-29 | 2021-02-26 | 宁波中科远东催化工程技术有限公司 | Production of H from sulfur-containing waste2SO4System and method |
| CN112225182A (en) * | 2020-10-19 | 2021-01-15 | 宁波中科远东催化工程技术有限公司 | System and method for preparing acid by utilizing industrial sulfur-containing waste |
| CN112225182B (en) * | 2020-10-19 | 2024-06-07 | 宁波中科远东催化工程技术有限公司 | System and method for preparing acid by utilizing industrial sulfur-containing waste |
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| CN114538385A (en) * | 2021-12-31 | 2022-05-27 | 新兴铸管股份有限公司 | Process for preparing concentrated sulfuric acid from desulfurization waste liquid by dry method |
| CN114853250A (en) * | 2022-06-06 | 2022-08-05 | 萍乡市新安环保工程有限公司 | Coking desulfurization foam and waste liquid drying equipment and method for drying coking desulfurization foam and waste liquid by using same |
| CN114853250B (en) * | 2022-06-06 | 2023-02-07 | 萍乡市新安环保工程有限公司 | Coking desulfurization foam and waste liquid drying equipment and method for drying coking desulfurization foam and waste liquid by using same |
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