CN109022073B - A kind of water-coal-slurry and preparation method thereof using phenol wastewater preparation - Google Patents
A kind of water-coal-slurry and preparation method thereof using phenol wastewater preparation Download PDFInfo
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- CN109022073B CN109022073B CN201810928773.4A CN201810928773A CN109022073B CN 109022073 B CN109022073 B CN 109022073B CN 201810928773 A CN201810928773 A CN 201810928773A CN 109022073 B CN109022073 B CN 109022073B
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- 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
Abstract
The present invention provides a kind of water-coal-slurry and preparation method thereof using phenol wastewater preparation, and this method is achieved by the steps of: (1) phenol wastewater being added in reactor tank, open stirring and heat temperature raising；(2) when temperature rises to 95 DEG C~120 DEG C, oxidant is added, and react 0.5~3 hour；(3) it is subsequently added into furfural factory production waste water, reaction adds sulfonating agent and reacts 2~6 hours after 0.5~3 hour；(4) above-mentioned reaction product and coal dust, dispersing agent are added in rod mill mix together, ore grinding 5~ore grinding 5 in ball mill after ten minutes~discharges after ten minutes, and water-coal-slurry is made.The water-coal-slurry provides a kind of new method for the processing of phenol wastewater and furfural factory production waste water.
Description
Technical field
The invention belongs to technical field of coal chemical industry, in particular to a kind of water-coal-slurry and its preparation prepared using phenol wastewater
Method.
Background technique
Phenolic compound is main organic pollutant in water environment, belongs to polarity, ionizable, faintly acid organic compound
Object has the characteristics that toxicity is big, refractory organics.Phenol wastewater is mainly from coke-oven plant (especially low temperature coke making by indigenous methods), coal gas
The industrial departments such as factory, petrochemical plant, insulating material factory and petroleum cracking ethylene, synthesizing phenol, Fypro, synthesis
Dyestuff, organic agricultural chemicals and phenolic resin production process.Because different production and living need, phenol wastewater classification method phase not to the utmost
Together.In industrial production sector, because of the difference of raw material, technique and purposes, the pH value of phenol wastewater also can be different, can be divided by pH value
Acid, neutral and alkalinity phenol wastewater；Volatility and non-volatile phenol wastewater can be divided by the property of contained pollutant；It presses
High concentration and low concentration are classified as according to its difference of amount containing phenol.Phenol-based compounds are mainly contained in phenol wastewater, such as phenol, first
Phenol, xylenol and nitrocresol etc..
The waste water generated in the production process of furfural greatly constrains the development of furfural industry.Furfural waste-water contains largely
Acetic acid and a considerable amount of furfural type organics, wherein methyl furfural and alkenes are 0.2% ~ 0.3%, furfural 0.05%,
Being discharged into water body can cause to seriously endanger.
Water-coal-slurry is a kind of novel energy-saving environment-friendly type oil-substituted fuel, it by coal, water, chemical addition agent etc. it is ground processing and
At a kind of similar heavy oil liquid coal fuel.Since raw coal is ground into after coal dust through special technique washing, sloughs and wherein pollute
Ingredient, be greatly lowered its dust burdening, sulfur content, less than 0.5%, ash content is substantially reduced from source sulfur content less than 6%
The content of sulfur dioxide and flue dust.
The present invention provides a kind of water-coal-slurry and preparation method thereof using phenol wastewater preparation.The water-coal-slurry is useless containing phenol
The processing of water and furfural factory production waste water provides a kind of new method.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide it is a kind of using phenol wastewater preparation water-coal-slurry and
Preparation method, the water-coal-slurry provide a kind of new method for the processing of phenol wastewater and furfural factory production waste water.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of water-coal-slurry prepared using phenol wastewater, is mainly made of the raw material components that following weight parts match:
50~200 parts of phenol wastewater
50~200 parts of furfural factory production waste water
0.01~0.5 part of oxidant
0.01~0.05 part of sulfonating agent
600~800 parts of coal dust
1~8 part of dispersing agent.
The phenol wastewater is mainly made of phenol, catechol and hydroquinone, and the total phenol concentration of phenol wastewater is 6~
10g/L。
The furfural factory production waste water is the waste water of generation during furfural production, by remaining distilled water and Industrial Recirculating Cooling Water
Two kinds of waste water compositions, the pollutant in waste water mainly have acetic acid, formaldehyde and furfural etc..
The oxidant is the mixture of one or more of Na2Fe04, potassium ferrate and potassium permanganate.
The sulfonating agent is mixture one or more of in sodium pyrosulfite, sodium hydrogensulfite and sodium sulfite.
The coal dust is one or more of lignite coal dust, pulverized bituminous coal, anthracite coal dust and semianthractie coal dust
Mixture.
The dispersing agent is naphthalenesulfonic acid-formaldehyde condensate, methyl naphthalene sulfonate formaldehyde condensate, nekal
One or more of mixture in formaldehyde condensation products, sodium lignin sulfonate, potassium lignosulfonate and calcium lignosulfonate.
A method of the water-coal-slurry prepared using phenol wastewater is achieved by the steps of:
(1) phenol wastewater is added in reactor tank, opens stirring and heat temperature raising；
(2) when temperature rises to 95 DEG C~120 DEG C, oxidant is added, and react 0.5~3 hour；
(3) it is subsequently added into furfural factory production waste water, reaction adds sulfonating agent and reacts 2~6 hours after 0.5~3 hour；
(4) above-mentioned reaction product and coal dust, dispersing agent are added in rod mill mix together, ore grinding 5~after ten minutes
Water-coal-slurry is made in the ore grinding 5~discharge after ten minutes in ball mill.
Compared with prior art, the present invention has following remarkable result:
1, water-coal-slurry of the invention is by being added phenol wastewater and the preparation of furfural factory production waste water, so that both waste water obtain
To processing, a kind of new method is provided for the processing of both waste water.
2, the phenolic substancess such as phenol in water-coal-slurry of the invention effective use phenol wastewater and sulfonating agent, furfural mill produce
Aldehyde material etc. in waste water reacts, and generates the substance with dispersibility, to improve the stability of water-coal-slurry, and saves
The production cost of water-coal-slurry is effectively reduced in the dosage for having saved dispersing agent.
Specific embodiment
The present invention is further elaborated on reference to embodiments.
A kind of water-coal-slurry prepared using phenol wastewater of the invention, is made of the raw material components that following weight parts match:
50~200 parts of phenol wastewater
50~200 parts of furfural factory production waste water
0.01~0.5 part of oxidant
0.01~0.05 part of sulfonating agent
600~800 parts of coal dust
1~8 part of dispersing agent.
The phenol wastewater is mainly made of phenol, catechol and hydroquinone, and the total phenol concentration of phenol wastewater is 6~
10g/L。
The furfural factory production waste water is the waste water of generation during furfural production, by remaining distilled water and Industrial Recirculating Cooling Water
Two kinds of waste water compositions, the pollutant in waste water mainly have acetic acid, formaldehyde and furfural etc..
The oxidant is the mixture of one or more of Na2Fe04, potassium ferrate and potassium permanganate.
The sulfonating agent is mixture one or more of in sodium pyrosulfite, sodium hydrogensulfite and sodium sulfite.
The coal dust is one or more of lignite coal dust, pulverized bituminous coal, anthracite coal dust and semianthractie coal dust
Mixture.
The dispersing agent is naphthalenesulfonic acid-formaldehyde condensate, methyl naphthalene sulfonate formaldehyde condensate, nekal
One or more of mixture in formaldehyde condensation products, sodium lignin sulfonate, potassium lignosulfonate and calcium lignosulfonate.
A kind of method using phenol wastewater preparation water-coal-slurry of the present invention, is achieved by the steps of:
(1) phenol wastewater is added in reactor tank, opens stirring and heat temperature raising；
(2) when temperature rises to 95 DEG C~120 DEG C, oxidant is added, and react 0.5~3 hour；
(3) it is subsequently added into furfural factory production waste water, reaction adds sulfonating agent and reacts 2~6 hours after 0.5~3 hour；
(4) above-mentioned reaction product and coal dust, dispersing agent are added in rod mill mix together, ore grinding 5~after ten minutes
Water-coal-slurry is made in the ore grinding 5~discharge after ten minutes in ball mill.
With specific embodiment, the present invention is described in detail below, but the present invention is not limited only to this.
Embodiment 1
A kind of water-coal-slurry prepared using phenol wastewater of the invention, is made of the raw material components that following weight parts match:
180 parts of phenol wastewater
185 parts of furfural factory production waste water
0.02 part of Na2Fe04
0.02 part of sodium pyrosulfite
633.46 parts of lignite coal dust
1.5 parts of naphthalenesulfonic acid-formaldehyde condensate.
A kind of method using phenol wastewater preparation water-coal-slurry of the present invention, is achieved by the steps of:
(1) 180 parts of phenol wastewater are added in reactor tank, open stirring and heat temperature raising；
(2) when temperature rises to 98 DEG C, 0.02 part of Na2Fe04 is added, and react 1 hour；
(3) 185 parts of furfural factory production waste waters are subsequently added into, it is anti-that reaction added 0.02 part of sodium pyrosulfite after 1.5 hours
It answers 3 hours；
(4) above-mentioned reaction product and 633.46 parts of lignite coal dusts, 1.5 parts of naphthalenesulfonic acid-formaldehyde condensates are added to together
It mixes in rod mill, discharges after 8.5 minutes after ore grinding 6 minutes then at ore grinding in ball mill, water-coal-slurry is made.
Embodiment 2
A kind of water-coal-slurry prepared using phenol wastewater of the invention, is made of the raw material components that following weight parts match:
150 parts of phenol wastewater
160 parts of furfural factory production waste water
0.08 part of Na2Fe04
0.03 part of sodium pyrosulfite
687.89 parts of pulverized bituminous coal
2 parts of methyl naphthalene sulfonate formaldehyde condensate.
A kind of preparation method of the water-coal-slurry using phenol wastewater preparation of the present invention, is achieved by the steps of:
(1) 150 parts of phenol wastewater are added in reactor tank, open stirring and heat temperature raising；
(2) when temperature rises to 102 DEG C, 0.08 part of Na2Fe04 is added, and react 2 hours；
(3) 160 parts of furfural factory production waste waters are subsequently added into, reaction adds 0.03 part of sodium pyrosulfite reaction after 2 hours
3.5 hour；
(4) above-mentioned reaction product and 687.89 parts of pulverized bituminous coals, 2 parts of methyl naphthalene sulfonate formaldehyde condensates are added together
It mixes into rod mill, discharges after 5.5 minutes after ore grinding 9.5 minutes then at ore grinding in ball mill, water-coal-slurry is made.
Embodiment 3
A kind of water-coal-slurry prepared using phenol wastewater of the invention, is made of the raw material components that following weight parts match:
135 parts of phenol wastewater
135 parts of furfural factory production waste water
0.15 part of potassium ferrate
0.02 part of sodium hydrogensulfite
726.83 parts of anthracite coal dust
3 parts of sodium lignin sulfonate.
A kind of method using phenol wastewater preparation water-coal-slurry of the present invention, is achieved by the steps of:
(1) 135 parts of phenol wastewater are added in reactor tank, open stirring and heat temperature raising；
(2) when temperature rises to 108 DEG C, 0.15 part of potassium ferrate is added, and react 2 hours；
(3) 135 parts of furfural factory production waste waters are subsequently added into, reaction adds sodium hydrogensulfite reaction 4.5 after 2.8 hours small
When；
(4) above-mentioned reaction product and 726.83 parts of anthracite coal dusts, 3 parts of sodium lignin sulfonates are added to rod mill together
Middle mixing discharges after 7 minutes after ore grinding 8 minutes then at ore grinding in ball mill, and water-coal-slurry is made.
Embodiment 4
A kind of water-coal-slurry prepared using phenol wastewater of the invention, is made of the raw material components that following weight parts match:
140 parts of phenol wastewater
75 parts of furfural factory production waste water
0.25 part of potassium ferrate
0.04 part of sodium hydrogensulfite
780.21 parts of semianthractie coal dust
4.5 parts of potassium lignosulfonate.
A kind of method using phenol wastewater preparation water-coal-slurry of the present invention, is achieved by the steps of:
(1) 140 parts of phenol wastewater are added in reactor tank, open stirring and heat temperature raising；
(2) when temperature rises to 112 DEG C, 0.25 part of potassium ferrate is added, and react 2.5 hours；
(3) 75 parts of furfural factory production waste waters are subsequently added into, reaction adds sodium hydrogensulfite reaction 5.56 after 1.5 hours small
When；
(4) above-mentioned reaction product and 780.21 parts of semianthractie coal dusts, 4.5 parts of potassium lignosulfonates are added to stick together
It mixes in grinding machine, discharges after 9 minutes after ore grinding 6.5 minutes then at ore grinding in ball mill, water-coal-slurry is made.
Embodiment 5
A kind of water-coal-slurry prepared using phenol wastewater of the invention, is made of the raw material components that following weight parts match:
100 parts of phenol wastewater
100 parts of furfural factory production waste water
0.35 part of potassium permanganate
0.03 part of sodium sulfite
793.62 parts of coal dust
6 parts of dispersing agent.
Wherein: the coal dust is lignite coal dust, two kinds of anthracite coal dust of mixture, lignite coal dust, anthracite coal dust
Dosage is respectively 293.62 parts and 500 parts；
The dispersing agent is sodium lignin sulfonate, two kinds of nekal formaldehyde condensation products of mixture, lignin
Sodium sulfonate, nekal formaldehyde condensation products dosage be respectively 5 parts and 1 part.
A kind of method using phenol wastewater preparation water-coal-slurry of the present invention, is achieved by the steps of:
(1) 100 parts of phenol wastewater are added in reactor tank, open stirring and heat temperature raising；
(2) when temperature rises to 115 DEG C, 0.35 part of potassium permanganate is added, and react 2.6 hours；
(3) 100 parts of furfural factory production waste waters are subsequently added into, reaction adds 0.03 part of sodium sulfite reaction 5.5 after 1 hour
Hour；
(4) by above-mentioned reaction product and 293.62 parts of lignite coal dusts, 500 parts of anthracite coal dusts, 5 parts of sodium lignin sulfonates and
1 part of nekal formaldehyde condensation products is added in rod mill mixes together, after ore grinding 8 minutes in ball mill ore grinding
It discharges after 8.5 minutes, water-coal-slurry is made.
Embodiment 6
A kind of water-coal-slurry prepared using phenol wastewater of the invention, is made of the raw material components that following weight parts match:
65 parts of phenol wastewater
135 parts of furfural factory production waste water
0.45 part of oxidant
0.04 part of sodium sulfite
792.01 parts of anthracite coal dust
7.5 parts of nekal formaldehyde condensation products.
Wherein: the oxidant is Na2Fe04, two kinds of potassium ferrate of mixture, Na2Fe04, potassium ferrate
Dosage be respectively 0.15 part and 0.3 part；
A kind of method using phenol wastewater preparation water-coal-slurry of the present invention, is achieved by the steps of:
(1) 65 parts of phenol wastewater are added in reactor tank, open stirring and heat temperature raising；
(2) when temperature rises to 118 DEG C, 0.15 part of Na2Fe04 and 0.3 part of potassium ferrate is added, and react 2 hours；
(3) 135 parts of furfural factory production waste waters are subsequently added into, reaction adds 0.04 part of sodium sulfite reaction after 1.5 hours
5.5 hour；
(4) by above-mentioned reaction product and 792.01 parts of anthracite coal dusts, 7.5 parts of nekal formaldehyde condensation products one
It rises to be added in rod mill and mix, discharge after 9.5 minutes after ore grinding 6.5 minutes then at ore grinding in ball mill, water-coal-slurry is made.
Viscosity, mobility and stability are carried out to water-coal-slurry prepared by embodiment 1-6 respectively to evaluate, and the results are shown in Table
1。
It is the evaluation more intuitive index of slurry quality, measurement whether mobility refers to that the flowing of water-coal-slurry slurry is smooth
Method uses ocular estimate, can be divided into A, B, C, tetra- grades of D, wherein A is that mobility is fine, continuous to flow；B be mobility compared with
It is good, semicontinuous flowing；C is to have certain fluidity, discontinuous flow；D is no mobility.
Method for estimating stability inserts method observation using traditional stick, i.e., by the closed standing of tested water-coal-slurry sample 24 hours
Afterwards, the precipitation status of water-coal-slurry is observed.The judgement of water coal slurry stability is divided into 4 grades.Wherein, A grades are at the beginning of slurry keeps it
Beginning state, no bleed and precipitating generate；B grades are there are a small amount of bleeds or a little soft precipitation to generate；C grades generate to have to precipitate, close
Degree is unevenly distributed, but renewable after stirring；D grades precipitate firmly for generation partly precipitated or all.
The evaluation of result of water-coal-slurry made from 1 embodiment of the present invention of table
Conclusion: according to upper table it can be concluded that the mobility for the water-coal-slurry that preparation method through the invention is prepared is fine,
A grades are reached, stability is also preferable, has reached B grades or more.
The foregoing descriptions are merely the embodiment using this origination techniques content, any those skilled in the art use this wound
Make done modifications and changes, all belong to the scope of the patents of this creation opinion, and is not limited to those disclosed embodiments.
Claims (6)
1. a kind of water-coal-slurry prepared using phenol wastewater, it is characterised in that: the raw material includes: phenol wastewater by weight
50~200 parts, 50~200 parts of furfural factory production waste water, 0.01~0.5 part of oxidant, 0.01~0.05 part of sulfonating agent, coal dust
600~800 parts, 1~8 part of dispersing agent；
The phenol wastewater is mainly made of phenol, catechol and hydroquinone, and the total phenol concentration of phenol wastewater is 6~10g/
L；
The furfural factory production waste water is the waste water of generation during furfural production, by remaining distilled water and two kinds of Industrial Recirculating Cooling Water
Waste water composition, the pollutant in waste water mainly have acetic acid, formaldehyde and furfural.
2. a kind of water-coal-slurry prepared using phenol wastewater according to claim 1, it is characterised in that: the oxidant is
The mixture of one or more of Na2Fe04, potassium ferrate and potassium permanganate.
3. a kind of water-coal-slurry prepared using phenol wastewater according to claim 1, it is characterised in that: the sulfonating agent is
One or more of mixture in sodium pyrosulfite, sodium hydrogensulfite and sodium sulfite.
4. a kind of water-coal-slurry prepared using phenol wastewater according to claim 1, it is characterised in that: the coal dust is brown
The mixture of one or more of coal coal dust, pulverized bituminous coal, anthracite coal dust and semianthractie coal dust.
5. a kind of water-coal-slurry prepared using phenol wastewater according to claim 1, it is characterised in that: the dispersing agent is
Naphthalenesulfonic acid-formaldehyde condensate, methyl naphthalene sulfonate formaldehyde condensate, nekal formaldehyde condensation products, lignin sulfonic acid
One or more of mixture in sodium, potassium lignosulfonate and calcium lignosulfonate.
6. a kind of method using phenol wastewater preparation water-coal-slurry as described in claim 1, it is characterised in that: including following step
It is rapid:
(1) phenol wastewater is added in reactor tank, opens stirring and heat temperature raising；
(2) when temperature rises to 95 DEG C~120 DEG C, oxidant is added, and react 0.5~3 hour；
(3) it is subsequently added into furfural factory production waste water, reaction adds sulfonating agent and reacts 2~6 hours after 0.5~3 hour；
(4) above-mentioned reaction product and coal dust, dispersing agent are added in rod mill mix together, ore grinding 5~after ten minutes then at
Water-coal-slurry is made in ore grinding 5 in ball mill~discharge after ten minutes.
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| CN110334855A (en) * | 2019-06-17 | 2019-10-15 | 浙江大学 | Intelligence determines the prediction and optimization system and method for waste water water-coal-slurry preparation program |
| CN110452747A (en) * | 2019-07-16 | 2019-11-15 | 广西欧神诺陶瓷有限公司 | Water-coal-slurry and preparation method thereof |
| CN112442399A (en) * | 2020-08-26 | 2021-03-05 | 安徽鑫固环保股份有限公司 | Method for synthesizing dispersing agent from phenol-containing wastewater |
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