CN102951711A - Method for treating carbon black water obtained by natural gas partial oxidation preparation of acetylene - Google Patents
Method for treating carbon black water obtained by natural gas partial oxidation preparation of acetylene Download PDFInfo
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- CN102951711A CN102951711A CN201110246028XA CN201110246028A CN102951711A CN 102951711 A CN102951711 A CN 102951711A CN 201110246028X A CN201110246028X A CN 201110246028XA CN 201110246028 A CN201110246028 A CN 201110246028A CN 102951711 A CN102951711 A CN 102951711A
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Abstract
The invention discloses a method for treating carbon black water obtained by natural gas partial oxidation preparation of acetylene. The method comprises that carbon black water and a flocculating agent are mixed and undergo a reaction; and the reaction products are precipitated and filtered, wherein the flocculating agent is an aqueous solution of liquid polyferric sulfate. The method for treating carbon black water has a simple process flow, a small floor space, operation management convenience, a high automation degree, short water treatment time and good treatment effects. Carbon black water treated by the method has a pH value of 7-9, COD of 50 to 80mg/L, and SS of 10 to 20mg/L. The method can realize clean production and recycle of clear water which is carbon black water treated by the method, can satisfy water-saving and emission reduction requirements, and has obvious economic benefits, social benefits and environmental benefits.
Description
Technical field
The present invention relates to the Industrial Wastewater Treatment field, relate in particular to the sooty water treatment process, be specifically related to the sooty water treatment process in a kind of gas by partial oxidation of natural acetylene processed.
Background technology
In gas by partial oxidation of natural acetylene processed, Sweet natural gas generates the reacted gas that contains acetylene through partial oxidation reaction, the by product soot formation is arranged simultaneously; The carbon black that generates is removed from reacted gas by spray water at equipment such as partial oxidation reactor, cooling tower, electric precipitator, form sooty water, sooty water separates most carbon blacks, removes through the carbon black separator tank from water, the sooty water after the separation recycles as the spray water of cracking, compression, concentration unit.Be water balance and the water conditioning of guaranteeing to recycle this sooty water system in the process above-mentioned, the fresh spray soft water after said apparatus is used is introduced in this sooty water, the part sooty water is discharged by overflow port at this sooty water water cooling tower place simultaneously.Common sewage biochemical processing process can not treated carbon black water, and discharging causes environmental pollution, and contain a small amount of carbon black and floss in the sooty water of discharging, and carbon black and floss are easily assembled blocking pipe in discharge tube.Under the situation of advocating cleaner production, water-saving and emission-reducing, develop that a kind of technique is simple, handled easily, sooty water treatment process that treatment effect is good, reduce pollutant emission extremely urgent.
Summary of the invention
The object of the present invention is to provide the treatment process of the sooty water that a kind of gas by partial oxidation of natural acetylene processed produces, realized the cleaner production of gas by partial oxidation of natural acetylene processed by treatment process of the present invention.
The objective of the invention is to realize by following technical proposals:
Sooty water treatment process in a kind of gas by partial oxidation of natural acetylene processed is characterized in that: described method is with sooty water and flocculation agent hybrid reaction, obtains clear water and mud through precipitation, filtration again; Described flocculation agent is the liquid polymerization ferric sulfate aqueous solution.
In order further to improve the treatment effect to sooty water, the mass percentage concentration of above-mentioned liquid polymerization ferric sulfate is 10%～15%, more preferably 11～12%.Such liquid polymerization ferric sulfate is the commercially available prod.
In order further to improve the treatment effect to sooty water, above-mentioned flocculation agent more preferably mixes according to above-mentioned liquid polymerization ferric sulfate and clear water and makes flocculation agent, wherein liquid polymerization ferric sulfate 0.2%～0.6%(of accounting for the flocculation agent total amount is preferably 0.5%), in mass percent concentration.
Preferably, above-mentioned flocculation agent is to mix according to the ratio of 1:200～600 with sooty water, more preferably 1:400～500.
Specifically, the sooty water treatment process in a kind of gas by partial oxidation of natural acetylene processed is hybrid reaction in the reaction cleaner with sooty water and flocculation agent, and described sooty water flow is 150～200m
3/ h(is preferably 200m
3/ h), the mass ratio of described sooty water and flocculation agent is 1:400～500, the reaction times is that 15～20min(is preferably 20min); Obtain clear water and mud through precipitation, filtration again, the recycle and reuse of gained clear water, gained mud are processed by common sewage biochemical processing process; Described flocculation agent be mass percentage concentration be 11～12% liquid polymerization ferric sulfate and clear water mix make, wherein said liquid polymerization ferric sulfate accounts for 0.5% of flocculation agent total amount, in mass percent concentration.
More particularly, the sooty water treatment process in a kind of gas by partial oxidation of natural acetylene processed comprises that the operations such as the carbon black sewage collecting is carried, the flocculation agent configuration is carried, reaction purification, clear water reuse, mud collection conveying form; Sewage collecting is carried, and refers to the sooty water of former overflow discharge is collected in the sewage lagoon, by delivering to the reaction cleaner after the sump pump pressurization; The flocculation agent configuration is carried, refer to mass percentage concentration to be that 11～12% liquid polymerization ferric sulfate medicament mixes with clear water that (wherein said liquid polymerization ferric sulfate accounts for 0.5% of flocculation agent total amount, in mass percent concentration), the rear formation flocculation agent that stirs is delivered to the reaction cleaner by volume pump with flocculation agent; Reaction purifies, and refers to that flocculation agent mixes, reacts in the reaction cleaner for the ratio of 1:400～500 in mass ratio with sooty water, and the sooty water flow that enters the reaction cleaner is 200m
3/ h, reaction times are 20min, obtain clear water and mud through precipitation, filtration again; The clear water reuse refers to collect the clear water through obtaining after purifying, and it is recycled with pump delivery to each device; Mud is collected and is carried, and refers to the mud that collection and purification device mud valve is discharged, and uses pump to be delivered to downstream unit by pipe special and processes by common sewage biochemical processing process.In this technical process, growth along with filtration time, the suspended substance quantity of interception increases, resistance in the filtering layer increases gradually, for guaranteeing filter effect, need regularly filtering layer to be carried out back flushing: the back-washing valve action of pressure switch interlocking and time relay control back-washing valve dual mode by the reaction cleaner carry out back flushing automatically; Simultaneously, mud valve also is to adopt the time relay automatically to control, and regularly the mud in the spoil disposal funnel is ejected in purification reactor.The reaction cleaner that the present invention uses is purchased from Guizhou Green Environment Protection Equipment Engineering Co., Ltd., model: YZJ-B-D type sewage purification device.
The present invention has following beneficial effect:
The method of treated carbon black water of the present invention has that technical process is simple, floor space is little, operational management is convenient, level of automation is high, treatment time of water is short, treatment effect is good, by gained clear water pH behind the inventive method treated carbon black water be 7～9, COD reaches 50 mg/L～80mg/L, SS and reaches 10 mg/L～20 mg/L, realized cleaner production, clear water after also will purifying is simultaneously recycled, reach the requirement of water-saving and emission-reducing, had obvious economic benefit, social benefit and environmental benefit.
Embodiment
Below by embodiment the present invention is carried out concrete description; be necessary to be pointed out that at this following examples only are used for the present invention is further specified; can not be interpreted as limiting the scope of the invention, the person skilled in art can make some nonessential improvement and adjustment to the present invention according to the invention described above content.
Embodiment 1
Hybrid reaction in the reaction cleaner that sooty water treatment process in a kind of gas by partial oxidation of natural acetylene processed is this with sooty water and flocculation agent, described sooty water flow is for being 200m
3The mass ratio of/h, described sooty water and flocculation agent is 1:400～500, and the reaction times is 20min; Described flocculation agent be mass percentage concentration be 11～12% liquid polymerization ferric sulfate and clear water mix make, wherein said liquid polymerization ferric sulfate accounts for 0.5% of flocculation agent total amount, in mass percent concentration; Obtain clear water and mud through precipitation, filtration again, the recycle and reuse of gained clear water, gained mud are processed by common sewage biochemical processing process.
Embodiment 2
Sooty water treatment process in a kind of gas by partial oxidation of natural acetylene processed is collected the sooty water of former overflow discharge in the sewage lagoon, by delivering to the reaction cleaner after the sump pump pressurization; Be that 10% liquid polymerization ferric sulfate medicament mixes with clear water that (wherein said liquid polymerization ferric sulfate accounts for 0.6% of flocculation agent total amount with mass percentage concentration, in mass percent concentration), the rear formation flocculation agent that stirs is delivered to the reaction cleaner by volume pump with flocculation agent; Flocculation agent is controlled in mass ratio 1:200 with sooty water and mixes, reacts in the reaction cleaner, and entering the sooty water flow that reacts cleaner is 150m
3/ h, reaction times are 15min, obtain clear water and mud through precipitation, filtration again; To through the clear water that obtains after purifying, recycle with pump delivery to each device; The mud that collection and purification device mud valve is discharged uses pump to be delivered to downstream unit by pipe special and processes by common sewage biochemical processing process.In this technical process, growth along with filtration time, the suspended substance quantity of interception increases, resistance in the filtering layer increases gradually, for guaranteeing filter effect, need regularly filtering layer to be carried out back flushing: the back-washing valve action of pressure switch interlocking and time relay control back-washing valve dual mode by the reaction cleaner carry out back flushing automatically; Simultaneously, mud valve also is to adopt the time relay automatically to control, and regularly the mud in the spoil disposal funnel is ejected in purification reactor.
Embodiment 3
Sooty water treatment process in a kind of gas by partial oxidation of natural acetylene processed is collected the sooty water of former overflow discharge in the sewage lagoon, by delivering to the reaction cleaner after the sump pump pressurization; Be that 15% liquid polymerization ferric sulfate medicament mixes with clear water that (wherein said liquid polymerization ferric sulfate accounts for 0.2% of flocculation agent total amount with mass percentage concentration, in mass percent concentration), the rear formation flocculation agent that stirs is delivered to the reaction cleaner by volume pump with flocculation agent; Flocculation agent is controlled in mass ratio 1:600 with sooty water and mixes, reacts in the reaction cleaner, and entering the sooty water flow that reacts cleaner is 170m
3/ h, reaction times are 18min, obtain clear water and mud through precipitation, filtration again; To through the clear water that obtains after purifying, recycle with pump delivery to each device; The mud that collection and purification device mud valve is discharged uses pump to be delivered to downstream unit by pipe special and processes by common sewage biochemical processing process.In this technical process, growth along with filtration time, the suspended substance quantity of interception increases, resistance in the filtering layer increases gradually, for guaranteeing filter effect, need regularly filtering layer to be carried out back flushing: the back-washing valve action of pressure switch interlocking and time relay control back-washing valve dual mode by the reaction cleaner carry out back flushing automatically; Simultaneously, mud valve also is to adopt the time relay automatically to control, and regularly the mud in the spoil disposal funnel is ejected in purification reactor.
Embodiment 4
Sooty water treatment process in a kind of gas by partial oxidation of natural acetylene processed is collected the sooty water of former overflow discharge in the sewage lagoon, by delivering to the reaction cleaner after the sump pump pressurization; Be that 13% liquid polymerization ferric sulfate medicament mixes with clear water that (wherein said liquid polymerization ferric sulfate accounts for 0.4% of flocculation agent total amount with mass percentage concentration, in mass percent concentration), the rear formation flocculation agent that stirs is delivered to the reaction cleaner by volume pump with flocculation agent; Flocculation agent is controlled in mass ratio 1:300 with sooty water and mixes, reacts in the reaction cleaner, and entering the sooty water flow that reacts cleaner is 190m
3/ h, reaction times are 16min, obtain clear water and mud through precipitation, filtration again; To through the clear water that obtains after purifying, recycle with pump delivery to each device; The mud that collection and purification device mud valve is discharged uses pump to be delivered to downstream unit by pipe special and processes by common sewage biochemical processing process.In this technical process, growth along with filtration time, the suspended substance quantity of interception increases, resistance in the filtering layer increases gradually, for guaranteeing filter effect, need regularly filtering layer to be carried out back flushing: the back-washing valve action of pressure switch interlocking and time relay control back-washing valve dual mode by the reaction cleaner carry out back flushing automatically; Simultaneously, mud valve also is to adopt the time relay automatically to control, and regularly the mud in the spoil disposal funnel is ejected in purification reactor.
Embodiment 5
Sooty water treatment process in a kind of gas by partial oxidation of natural acetylene processed is collected the sooty water of former overflow discharge in the sewage lagoon, by delivering to the reaction cleaner after the sump pump pressurization; Be that 14% liquid polymerization ferric sulfate medicament mixes with clear water that (wherein said liquid polymerization ferric sulfate accounts for 0.3% of flocculation agent total amount with mass percentage concentration, in mass percent concentration), the rear formation flocculation agent that stirs is delivered to the reaction cleaner by volume pump with flocculation agent; Flocculation agent is controlled in mass ratio 1:450 with sooty water and mixes, reacts in the reaction cleaner, and entering the sooty water flow that reacts cleaner is 160m
3/ h, reaction times are 16min, obtain clear water and mud through precipitation, filtration again; To through the clear water that obtains after purifying, recycle with pump delivery to each device; The mud that collection and purification device mud valve is discharged uses pump to be delivered to downstream unit by pipe special and processes by common sewage biochemical processing process.In this technical process, growth along with filtration time, the suspended substance quantity of interception increases, resistance in the filtering layer increases gradually, for guaranteeing filter effect, need regularly filtering layer to be carried out back flushing: the back-washing valve action of pressure switch interlocking and time relay control back-washing valve dual mode by the reaction cleaner carry out back flushing automatically; Simultaneously, mud valve also is to adopt the time relay automatically to control, and regularly the mud in the spoil disposal funnel is ejected in purification reactor.
Below be the synopsis before processing rear sooty water and process with the inventive method:
Claims (8)
1. the sooty water treatment process in the gas by partial oxidation of natural acetylene processed, it is characterized in that: described method is with sooty water and flocculation agent hybrid reaction, again through precipitation, filter; Described flocculation agent is the aqueous solution of liquid polymerization ferric sulfate.
2. sooty water treatment process as claimed in claim 1, it is characterized in that: the mass percentage concentration of described liquid polymerization ferric sulfate is 10%～15%.
3. sooty water treatment process as claimed in claim 1, it is characterized in that: the mass percentage concentration of described liquid polymerization ferric sulfate is 11～12%.
4. sooty water treatment process as claimed in claim 2 or claim 3, it is characterized in that: described flocculation agent mixes according to described liquid polymerization ferric sulfate and clear water and makes, wherein liquid polymerization ferric sulfate 0.2%～0.6%(of accounting for the flocculation agent total amount is preferably 0.5%), in mass percent concentration.
5. such as claim 1,2,3 or 4 described sooty water treatment processs, it is characterized in that: described flocculation agent mixes according to the ratio of 1:200～600 with sooty water.
6. sooty water treatment process as claimed in claim 2 or claim 3, it is characterized in that: the mass ratio of described flocculation agent and sooty water is 1:400～500; Described flocculation agent mixes according to described liquid polymerization ferric sulfate and clear water and makes, and wherein liquid polymerization ferric sulfate accounts for 0.5% of flocculation agent total amount, in mass percent concentration.
7. sooty water treatment process as claimed in claim 1 is characterized in that: described method is hybrid reaction in the reaction cleaner with sooty water and flocculation agent, and described sooty water flow is 150～200m
3The mass ratio of/h, described sooty water and flocculation agent is 1:400～500, and the reaction times is 15～20min; Obtain clear water and mud through precipitation, filtration again, the recycle and reuse of gained clear water, gained mud are processed by common sewage biochemical processing process; Described flocculation agent be mass percentage concentration be 11～12% liquid polymerization ferric sulfate and clear water mix make, wherein said liquid polymerization ferric sulfate accounts for 0.5% of flocculation agent total amount, in mass percent concentration.
8. sooty water treatment process as claimed in claim 7, it is characterized in that: described sooty water flow is 200m
3/ h, the reaction times is 20min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110246028.XA CN102951711B (en) | 2011-08-25 | 2011-08-25 | Method for treating carbon black water obtained by natural gas partial oxidation preparation of acetylene |
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| CN201110246028.XA CN102951711B (en) | 2011-08-25 | 2011-08-25 | Method for treating carbon black water obtained by natural gas partial oxidation preparation of acetylene |
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| CN102951711A true CN102951711A (en) | 2013-03-06 |
| CN102951711B CN102951711B (en) | 2015-06-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655225A (en) * | 2018-06-28 | 2020-01-07 | 中国石油天然气股份有限公司 | Carbon black water treatment method and carbon black water treatment system |
| CN114405427A (en) * | 2022-01-11 | 2022-04-29 | 四川艾普热能科技有限公司 | Low-energy-consumption cracking device and method for preparing acetylene from natural gas |
| CN114426782A (en) * | 2020-10-14 | 2022-05-03 | 中国石油化工股份有限公司 | Activation method of byproduct carbon black for preparing acetylene by partial oxidation of natural gas |
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| CN101522577A (en) * | 2006-09-28 | 2009-09-02 | 巴斯夫欧洲公司 | Process for separating off carbon black from a wastewater stream |
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2011
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Patent Citations (2)
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|---|---|---|---|---|
| CN1280958A (en) * | 2000-05-26 | 2001-01-24 | 萧山市临江工贸有限公司 | Process without drainage of waste water |
| CN101522577A (en) * | 2006-09-28 | 2009-09-02 | 巴斯夫欧洲公司 | Process for separating off carbon black from a wastewater stream |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655225A (en) * | 2018-06-28 | 2020-01-07 | 中国石油天然气股份有限公司 | Carbon black water treatment method and carbon black water treatment system |
| CN114426782A (en) * | 2020-10-14 | 2022-05-03 | 中国石油化工股份有限公司 | Activation method of byproduct carbon black for preparing acetylene by partial oxidation of natural gas |
| CN114405427A (en) * | 2022-01-11 | 2022-04-29 | 四川艾普热能科技有限公司 | Low-energy-consumption cracking device and method for preparing acetylene from natural gas |
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| CN102951711B (en) | 2015-06-24 |
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