CN101428798A - Method for producing active carbon with olefin hydrocarbon apparatus sewage sludge - Google Patents
Method for producing active carbon with olefin hydrocarbon apparatus sewage sludge Download PDFInfo
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- CN101428798A CN101428798A CNA2008102352669A CN200810235266A CN101428798A CN 101428798 A CN101428798 A CN 101428798A CN A2008102352669 A CNA2008102352669 A CN A2008102352669A CN 200810235266 A CN200810235266 A CN 200810235266A CN 101428798 A CN101428798 A CN 101428798A
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- active carbon
- olefin hydrocarbon
- sewage sludge
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Abstract
The invention relates to a method for preparing active carbon by using sludge in an olefin device, which is characterized in that the method comprises the following steps: firstly, adding 10 to 30 percent of crop stalks as a carburant, wherein the crop stalks comprise hemp stalks, corn stalks and cotton stalks; secondly, charring the sludge in the olefin device after being uniformly mixed for 1 hour in a Muffle furnace at the temperature of 450 DEG C; and thirdly, activating charring material in a revolving furnace, introducing water vapor, activating for 1 to 2 hours at the temperature of 850 to 950 DEG C, cooling for 2 hours closely, and drying (The moisture content is less than or equal to 10 percent) and obtaining the active carbon, wherein the dosage of the water vapor 150 mL. The invention has the advantages of no occupation for green lands, no water loss and volatilization during the piling process, protected soil environment and ecological environment of the green lands, and no air pollution caused during incinerating process. The invention reduces preparation cost of the active carbon, fully conforms to the requirements of environmental protection, solves the pollution problem of the sludge in the olefin device, and really embodies the principles of innocence, decrement and resource in waste treatment.
Description
Technical field
What the present invention relates to is a kind of method of producing active carbon with olefin hydrocarbon apparatus sewage sludge, belongs to olefin hydrocarbon apparatus and produces the processing of mud and utilize technical field.
Background technology
Olefin hydrocarbon apparatus sewage sludge is the by product that produces in the olefin production process.Flourish along with petrochemical complex, the output of this mud is also more and more.According to statistics, whole nation olefin hydrocarbon apparatus is in the process of producing ethene, the mud scum silica frost that is produced by various rinse water and sewage discharge, there are more than 2,000 ten thousand tons the whole year approximately, the factory of the existing olefin hydrocarbon apparatus in the whole nation is totally 7 families, at present under preparation have 2 families, estimates that annual olefin hydrocarbon apparatus sewage sludge handles the mud scum silica frost that is produced and will break through 3,000 ten thousand tons.At present, this mud is stacked with outward transport, be main through burning disposal again, whole process has not only taken a large amount of greenery patchess, and in stacking process, because the loss and the volatilization of moisture, havoc the ecotope in edatope and greenery patches, in burning process, also caused serious atmospheric pollution simultaneously.Therefore, inquire into and also to implement the processing and the new way of recycling that olefin hydrocarbon apparatus produces mud, significant to the pollution problem of solution olefin hydrocarbon apparatus sewage sludge, really embodied innoxious, the minimizing of waste treatment, the principle of resource utilization.
Summary of the invention
What the present invention proposed is a kind of method of producing active carbon with olefin hydrocarbon apparatus sewage sludge, being intended to overcome has that technology is existing not only to take a large amount of greenery patchess, and in stacking process because the loss and the volatilization of moisture, havoc the defectives such as ecotope in edatope and greenery patches.
Technical solution of the present invention: this method comprises following processing step:
One, the agricultural crop straw of adding 10～30% is as carburelant, and described agricultural crop straw is by hemp stalk, maize straw, cotton stalk;
Two, with the charing 1 hour in 450 ℃ of muffle furnaces of the olefin hydrocarbon apparatus sewage sludge that mixes;
Three, carbonized material activates in rotary kiln, and feeding water vapour activates 1～2 hour down at 850～950 ℃, gets gac through cooling, dry (water ratio≤10%), and described water vapor consumption is 150mL.
Described processing step two, can with concentration the phosphoric acid solution dipping olefin hydrocarbon apparatus sewage sludge of 35 ° of Be ', 40 ° of Be ', 45 ° of Be ' also, make mud wetted, in muffle furnace, be warming up to 400～500 ℃ then and carry out the charcoal activation, the charcoal soak time is 1.5～2.5 hours, gets gac through cooling, rinsing, drying (water ratio≤10%).
Select for use phosphoric acid as activator, preferred concentration is 40 ° of Be '.
400 ℃ of preferred activation temperatures, soak time 1.5 hours.
Gac is determined the processing condition that it is best, i.e. influence factors such as activator level, solid-to-liquid ratio, activation temperature and soak time as sorbent material by measuring its iodine number.
Factor differences such as carbonization temperature, carbonization time, activation temperature, soak time, activator level, solid-to-liquid ratio can prepare the gac of different pore diameter ranges.
Advantage of the present invention: do not take the greenery patches, and in stacking process, the ecotope in edatope and greenery patches has been protected in the volatilization of becoming estranged of no moisture flow, does not cause atmospheric pollution in burning process simultaneously.Be that a kind of olefin hydrocarbon apparatus of implementing produces the processing of mud and the new way of recycling, the pollution problem that has solved olefin hydrocarbon apparatus sewage sludge has really embodied innoxious, the minimizing of waste treatment, the principle of resource utilization.
Description of drawings:
Accompanying drawing 1 is a process flow sheet of the present invention
Accompanying drawing 2 is to add the process flow sheet that hydrochloric acid, water rinse prepare active sludge carbon
Embodiment
The method of producing active carbon with olefin hydrocarbon apparatus sewage sludge comprises following processing step:
One, suitably adds 10～30% agricultural crop straw such as hemp stalk, maize straw, cotton stalk etc. as carburelant.
Two, with the olefin hydrocarbon apparatus sewage sludge charing in 450 ℃ of muffle furnaces that mixes, carbonization time 1h.
Three, carbonized material activates in rotary kiln, feeds a certain amount of water vapor, activates 1～2 hour down at 850～950 ℃.Get gac through cooling, dry (water ratio≤10%).
In the last art processing step two, usable concentration is the phosphoric acid solution dipping olefin hydrocarbon apparatus sewage sludge of 35 ° of Be ', 40 ° of Be ', 45 ° of Be ', till making mud just wetted, be warming up to 400～500 ℃ then and carry out the charcoal activation in muffle furnace, the charcoal soak time is 1.5～2.5 hours.Get gac through cooling, rinsing, drying (water ratio≤10%).
Utilize olefin hydrocarbon apparatus in producing ethylene process, the mud that various rinse water and sewage discharge are produced.
Add 10～30% agricultural crop straw such as hemp stalk, maize straw, cotton stalk etc. as carburelant, improved the carbon content of product.
Preferred carbonization temperature is that 450 ℃, carbonization time are 1 hour.
Preferred activation temperature is that 900 ℃, soak time are that 1 hour, water vapor consumption are 150mL.
Select for use phosphoric acid as activator, preferred concentration is 40 ° of Be '.
400 ℃ of preferred activation temperatures, soak time 1.5 hours.
Embodiment 1
The mud concentration that olefin hydrocarbon apparatus is produced is the phosphate impregnation 24h of 40 ° of Be ', makes mud by complete wetting.Put into muffle furnace then and be warming up to 400 ℃ and carry out charcoal activation, soak time is 1.5 hours.Obtain gac through cooling, rinsing, drying (water ratio≤10%).The iodine number of gac is 384.6mg/g.
Embodiment 2
The mud that olefin hydrocarbon apparatus is produced is warming up to 450 ℃ and carries out charing in muffle furnace, the control heat-up rate is so that mud is can charing complete.Carbonized material is placed on carries out steam activation in the rotary kiln; activating certain temperature feeding a small amount of water vapor protects raw material; when temperature reaches 900 ℃ of activation temperatures; feed the 150mL water vapor; continue activation after 1 hour; stop heating, to be cooled, dry (water ratio≤10%) obtains gac.The iodine number of preparation gac is that 604.4mg/g, methylene blue percent of decolourization are 5.5mL.
Embodiment 3
The hemp stalk of adding 25% is as carburelant in the mud that olefin hydrocarbon apparatus produces, and the method by embodiment 2 behind the uniform mixing prepares active sludge carbon, and its iodine number is that 702.6mg/g, methylene blue percent of decolourization are 6.0mL.
Take by weighing the active sludge carbon of 2g method for preparing, place the 250mL Erlenmeyer flask, adding chemical oxygen demand (COD) again is the sewage 150mL of 96.00mg/L, colourity 192 degree, turbidity 63.20NTU, suspended substance 45mg/L, static 24 hours, survey its absorption after water-quality guideline, the result is 50.00% for the chemical oxygen demand (COD) clearance, chroma removal rate is 95.83%, turbidity removal rate is 89.08%, and the suspended substance removal rate is 84.44%.
Claims (2)
1, the method for producing active carbon with olefin hydrocarbon apparatus sewage sludge is characterized in that this method comprises following processing step:
(1), add 10～30% agricultural crop straw as carburelant, described agricultural crop straw comprises hemp stalk, maize straw, cotton stalk;
(2), with the charing 1 hour in 450 ℃ of muffle furnaces of the olefin hydrocarbon apparatus sewage sludge that mixes;
(3), carbonized material activates in rotary kiln, feeds water vapour, 850～950 ℃ of activation 1～2 hour down, through airtight cooling 2 hours, dry water ratio≤10% gac, described water vapor consumption is 150mL.
2, the method for producing active carbon with olefin hydrocarbon apparatus sewage sludge according to claim 1, it is characterized in that described processing step two, with concentration is the phosphoric acid solution dipping olefin hydrocarbon apparatus sewage sludge of 35 ° of Be ', 40 ° of Be ', 45 ° of Be ', make mud wetted, in muffle furnace, be warming up to 400～500 ℃ then and carry out the charcoal activation, the charcoal soak time is 1.5～2.5 hours, and described processing step three gets gac through airtight cooling 2 hours, rinsing, dry water ratio≤10%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102352669A CN101428798B (en) | 2008-12-03 | 2008-12-03 | Method for producing active carbon with olefin hydrocarbon apparatus sewage sludge |
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| CN2008102352669A CN101428798B (en) | 2008-12-03 | 2008-12-03 | Method for producing active carbon with olefin hydrocarbon apparatus sewage sludge |
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| CN101428798A true CN101428798A (en) | 2009-05-13 |
| CN101428798B CN101428798B (en) | 2010-12-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556031A (en) * | 2015-01-13 | 2015-04-29 | 华南理工大学 | Mud-based spherical active carbon as well as preparation method and application thereof |
| CN106927462A (en) * | 2017-04-24 | 2017-07-07 | 句容市百诚活性炭有限公司 | A kind of preparation method of active sludge carbon |
| CN107188167A (en) * | 2017-05-24 | 2017-09-22 | 上海理工大学 | A kind of method that utilization activated by urine municipal sludge prepares active sludge carbon |
| CN110655076A (en) * | 2019-11-15 | 2020-01-07 | 山西新华化工有限责任公司 | Production process for preparing activated carbon from sludge |
| CN112938970A (en) * | 2021-04-16 | 2021-06-11 | 中晶城康资源再生利用技术有限公司 | Preparation method of activated carbon and activated carbon |
-
2008
- 2008-12-03 CN CN2008102352669A patent/CN101428798B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556031A (en) * | 2015-01-13 | 2015-04-29 | 华南理工大学 | Mud-based spherical active carbon as well as preparation method and application thereof |
| CN106927462A (en) * | 2017-04-24 | 2017-07-07 | 句容市百诚活性炭有限公司 | A kind of preparation method of active sludge carbon |
| CN107188167A (en) * | 2017-05-24 | 2017-09-22 | 上海理工大学 | A kind of method that utilization activated by urine municipal sludge prepares active sludge carbon |
| CN107188167B (en) * | 2017-05-24 | 2019-06-28 | 上海理工大学 | A method of active sludge carbon is prepared using activated by urine municipal sludge |
| CN110655076A (en) * | 2019-11-15 | 2020-01-07 | 山西新华化工有限责任公司 | Production process for preparing activated carbon from sludge |
| CN112938970A (en) * | 2021-04-16 | 2021-06-11 | 中晶城康资源再生利用技术有限公司 | Preparation method of activated carbon and activated carbon |
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| Publication number | Publication date |
|---|---|
| CN101428798B (en) | 2010-12-22 |
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