CN104877721A - Method for improving stability of water-coke slurry - Google Patents
Method for improving stability of water-coke slurry Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000010802 sludge Substances 0.000 claims abstract description 48
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- 238000002156 mixing Methods 0.000 claims abstract description 6
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- 239000011324 bead Substances 0.000 claims description 7
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- 238000009833 condensation Methods 0.000 claims description 6
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- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 claims description 6
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- 238000002844 melting Methods 0.000 abstract 2
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- Liquid Carbonaceous Fuels (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to a method for improving stability of water-coke slurry. The water-coke slurry is prepared from the raw materials, including petroleum coke, activated sludge, water and a dispersing agent. The method comprises the steps of (1) sieving petroleum coke through a sieve, and remaining petroleum coke of which the particle size is less than 0.8mm; (2) dissolving the dispersing agent into water, and uniformly agitating for later use; (3) integrally uniformly mixing the dispersing agent solution obtained in step (2) and activated sludge, pouring into a ball mill tank together with the petroleum coke processed in step (1), wherein the quantity ratio of large balls to small balls in the ball mill tank is 30: 150; a ball mill rotates at the speed of 230 to 380r/min; the ball milling costs 30 to 50 minutes; (4) filtering the slurry obtained by ball milling through a sieve with 40 meshes so as to remove impurities and large particles and obtain water-coke slurry. According to the method, the activated sludge is doped into the water-coke slurry to greatly improve the stability of the water-coke slurry, so that the problem of poor stability of the water-coke slurry can be completely solved; meanwhile, a new treatment way is provided to the activated sludge of a melting plant, and the sludge treatment cost of the melting plant can be reduced.
Description
Technical field
The present invention relates to fuel slurry field, relate in particular to a kind of method improving water Jiao slurry stability.
Background technology
The basis of refinery coke slurrying gasification is the slurry that can obtain high density, low viscosity, mobility and stablize.Refinery coke is because its O/C is than low, and ash oontent is low, and pore texture is undeveloped, and surface hydrophobicity is extremely strong, and can not adsorb too much free water in pulping process, therefore slurry concentration is high, and the slurry concentration of usual water Jiao slurry can reach more than 70%.But refinery coke surface hydrophobicity is too strong, after slurrying, there is sedimentation in easy hydrophobic reunion between particle under gravity very soon, causes the stability extreme difference of water Jiao slurry, is difficult to the requirement meeting industry storage and transport.Therefore, how to improve water Jiao slurry stability and become refinery coke slurrying gasification large-scale application problem that must solve.
Be a kind of at present conventional method improving water Jiao slurry stability by adding stablizer in water Jiao slurry, stablizer mainly contains inorganic electrolyte and macromolecular compound two class.Inorganic electrolyte is because addition is large and action effect is not obvious and use less; Macromolecular compound mainly contains polyacrylamide, polyoxyethylene, Natvosol, humic acid salt etc., its Main Function is built bridge between the particle in slurry, crisscross, forms spatial networks result, stop particle generation sedimentation, thus improve the stability of water Jiao slurry.Although the interpolation of stablizer can improve the stability of water Jiao slurry to a certain extent, the use of stablizer will increase slurrying cost, and water Jiao slurry often easily forms pseudoplastic fluid, does not meet the requirement of industrial application.
Summary of the invention
According to above-mentioned weak point, the object of this invention is to provide a kind of method improving water Jiao slurry stability, fundamentally solve the problem of water Jiao slurry slurry stability, improve its stability, slurry is left standstill for a long time bleed deposited phenomenon does not occur, make it meet the requirement of industrial application.
For achieving the above object, technical program of the present invention lies in: a kind of method improving water Jiao slurry stability, wherein the raw material of water Jiao slurry comprises refinery coke, the active sludge of 7-24 part, the water of 12-33 part, the dispersion agent of 0.6-1.0 part of 60-65 part in mass fraction; Its operation steps is as follows:
(1) use sieve refinery coke is carried out process of sieving, get particle diameter be less than 0.8mm refinery coke reservation for subsequent use;
(2) dispersion agent is soluble in water, stir for subsequent use;
(3) dispersant solution in step (2) and active sludge are mixed together evenly, and pour in ball grinder together with the refinery coke handled well in step (1), in described ball grinder, the number ratio of large ball and bead is 30:150, rotational speed of ball-mill is 230-380r/min, and Ball-milling Time is 30-50min;
(4) obtained slurry uses 40 mesh sieve to filter after completing by ball milling, removing foreign material and macrobead, namely obtains water Jiao slurry.
Preferably: described refinery coke is the by product of refinery's delayed coking, its carbon content is 85-95wt%, and ash oontent is lower than 1wt%, and volatile content is lower than 10wt%, and calorific value is more than 30MJ/kg.
Preferably: the residual active sludge that described active sludge produces for the process of Love psychology treatment system mesophytization, jointly form primarily of oil, water, slag and microorganism, after dehydration, its water ratio is 70-75wt%.
The residual active sludge utilizing the process of Love psychology treatment system mesophytization to produce has following benefit: containing the extracellular polymeric EPS produced by microbial metabolism in a large number in (1) mud, EPS is the polymer substance that microorganism is produced under given conditions, the inside is containing bio-surfactant, stably dispersing effect can be played in pulping process, mud can the concentration of bio-surfactant in thickened sludge further after dehydration, and more bio-surfactant is utilized in pulping process; (2) mud carries out dewatering to need adding certain chemical agent and nurses one's health in dehydration, makes the de-steady cohesion of mud, increases mud granule volume, then carry out processed.The conditioning medicament of sludge conditioning mainly contains iron trichloride, aluminum chloride, polymeric aluminum and polyacrylamide etc., and these materials are all stablizers comparatively conventional in current water Jiao slurry pulping process; (3) for reducing processing costs, current refinery sludge all can outer process of entrusting after preliminary hydro-extraction, and the general water ratio of mud after dewatering is 70-80%.
Preferably: described dispersion agent is one in naphthalenesulfonate condensation compound, sulfonated lignin, sodium polystyrene sulfonate or any several mixing;
This several dispersion agent all belongs to anionic dispersing agent, in its molecular structure, all there is hydrophilic radical and hydrophobic grouping, the mechanism of action mainly comprises: (1) changes the wetting ability on petroleum coke particles surface: after dispersion agent acts on slurry, nonpolar hydrophobic grouping is adsorbed on petroleum coke particles surface, the hydrophilic radical of polarity is towards in water, improve the hydrophobicity on petroleum coke particles surface, reduce the interfacial tension between solid-liquid, substantially increase petroleum coke particles wettability of the surface, and petroleum coke particles surface reduces the moisten contact angle of petroleum coke particles because hydration forms one deck hydration shell, and petroleum coke particles is separated, reduce intergranular internal friction, thus reduce the apparent viscosity of water Jiao slurry, improve the mobility of water Jiao slurry, (2) intergranular electrostatic repulsion is increased: three kinds of dispersion agents all belong to anionic dispersing agent, and petroleum coke particles and mud granule are all electronegative, therefore, the ionic charge that dispersion agent ionization produces can be adsorbed on petroleum coke particles surface, increase the electronegativity on petroleum coke particles surface, increase the electrostatic repulsion between petroleum coke particles, prevent petroleum coke particles from reuniting, make refinery coke stable dispersion in water, (3) space steric effect: dispersion agent is after petroleum coke particles surface adsorption, improve the wettability of petroleum coke particles, one deck hydration shell is formed at particle surface, its contained humidity aligns when being subject to particle surface electric field action, when petroleum coke particles is close to each other, particle surface hydration shell is squeezed and deformation occurs, and the electric field action of particle surface then hinders it to be out of shape, hydration shell has certain elasticity, makes petroleum coke particles dispersed.
These three kinds of dispersion agents are all the comprehensive of above-mentioned three kinds of mechanisms of action in mechanism, and three kinds of mechanisms of action are playing a role jointly.
Preferably: described large spherical diameter is 20mm, the small ball's diameter is 10mm.
Preferably: described its solid content of obtained water Jiao slurry is 62-70wt%, and viscosity is not higher than 1200mPas.
Cause water Jiao slurry factors of instability to mainly contain two aspects, one is because the hydrophobicity on petroleum coke particles surface is too strong, causes petroleum coke particles to be easy to just under van der Waals interaction and the effect of hydrophobic aggregation power, the degree of depth to occur coalescent; Two is that the degree of depth caused by particle gravity settling is coalescent.Reason after adding dispersion agent in first can obtain improvement to a certain degree, and therefore gravity settling is the major cause causing water Jiao slurry unstable.
The key improving water Jiao slurry stability how to stop particle generation gravity settling, and usually really can play prevention solids precipitation, what improve water Jiao slurry stability is the mechanical resistance that the spacial framework formed by Additive produces particle, but the effect depending merely on additive raising stability is not very good.The basic structure of mud is all flock, comparatively loose, specific surface and porosity higher, easy bleed, has branch and the reticulated structure of similar feather in appearance; When mud and refinery coke are total to pulping, mud is attached to petroleum coke particles surface, water-swelling is there is in these mud in pulping process, improve the stability of slurry on the one hand, mud forms thick wall between petroleum coke particles on the other hand, compare the effect of additive, between the prevention petroleum coke particles that this can be effective, mechanical, hydrophobic aggregation occurs.In addition, when Distribution of sludge is in whole slurry, mud forms interlayer between petroleum coke particles, mud in loose flco shape is interconnected and will wall is made to form three-dimensional net structure in space, and the existence of three-dimensional space network structure can produce the mechanical resistance stoping petroleum coke particles generation gravity settling.Therefore the burnt stability of starching of water can effectively be improved adding of mud.
With stability, mobility, viscosity for slurry character index, investigate oily sludge addition to the impact of slurry character.Fig. 1 is shown on the impact of its stability, Fig. 2 is shown on the impact of its viscosity, on the impact of its mobility in table 1.
Table 1 mud addition is on the impact of fluidity of slurry
As seen from Figure 1, mud can add the stability that can improve slurry dramatically, originally stabilization not obvious, after mud addition is more than 2%, stabilization increases substantially, when mud addition reaches 5%, steady time is increased to 194h by the 18.7min of zero sludge content, can meet harsh accumulating condition.From Fig. 2 and table 1, mud add-on more than 2% after, have obvious Efficient Adhesive Promotion to slurry, viscosity significantly increase the reduction also causing its mobility.When mud addition is below 6%, slurry viscosity meets COAL-WATER SLURRY TECHNOLOGY and requires (temperature 25 DEG C, shearing rate 100s
-1time, viscosity <1200mPas).The flowing property of slurry reaches the requirement of B level.Can be obtained by above data, mud add the stability that can significantly improve slurry, improve slurry viscosity, but the mobility of slurry can be reduced, this mainly by mud self structure, form determine.
Beneficial effect of the present invention is: the present invention, by mixing the stability that active sludge increases substantially water Jiao slurry in water Jiao slurry, fundamentally solves the problem of water Jiao slurry slurry stability difference; Simultaneously for refinery's active sludge provides a new process outlet, reduce the processing cost of refinery sludge; On the other hand, the present invention can make full use of calorific value in refinery's active sludge and water, reduces the consumption of slurrying fresh water, achieves the recycling of refuse simultaneously; 4th, the present invention takes full advantage of bio-surfactant in active sludge and sludge conditioner, only need add a small amount of dispersion agent, without the need to additionally adding stablizer, saving the expense buying additive, reducing slurrying cost; After active sludge adds, slurry is become pseudoplastic fluid from the dilatant fluid before not adding, well change the rheological of slurry, make it be easy to pumping; Active sludge contains higher volatile content, and volatile matter high in follow-up gasification can effectively reduce the point of ignition of refinery coke, improves the gasification efficiency of refinery coke; Mud prepared by the present invention Jiao slurry well can both meet from concentration, viscosity, mobility, these aspects of stability that industrial slurry stores, the requirement of pumping and atomization, and the industrial application for refinery coke slurrying gasification is significant.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Fig. 2 is the stability influence graphic representation of mud addition to slurry.
Fig. 3 is the influence curve figure of mud addition to slurry viscosity.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
Embodiment 1
Improve a method for water Jiao slurry stability, the raw material of water Jiao slurry comprises the refinery coke of 60 parts, the active sludge of 7 parts, the water of 33 parts, the dispersion agent of 0.6 part in mass fraction; Its operation steps is as follows:
(1) use sieve refinery coke is carried out process of sieving, get particle diameter be less than 0.8mm refinery coke reservation for subsequent use;
(2) dispersion agent is soluble in water, stir for subsequent use;
(3) dispersant solution in step (2) and active sludge are mixed together evenly, and pour in ball grinder together with the refinery coke handled well in step (1), in described ball grinder, the number ratio of large ball and bead is 30:150, rotational speed of ball-mill is 230r/min, and Ball-milling Time is 30min; Large spherical diameter is 20mm, and the small ball's diameter is 10mm;
(4) obtained slurry uses 40 mesh sieve to filter after completing by ball milling, removing foreign material and macrobead, namely obtains water Jiao slurry.
Wherein, refinery coke is the by product of refinery's delayed coking, and its carbon content is 85-95wt%, and ash oontent is lower than 1wt%, and volatile content is lower than 10wt%, and calorific value is more than 30MJ/kg.The residual active sludge that active sludge produces for the process of Love psychology treatment system mesophytization, forms jointly primarily of oil, water, slag and microorganism, and after dehydration, its water ratio is 70wt%.Dispersion agent is naphthalenesulfonate condensation compound.
Final its solid content of obtained water Jiao slurry is 62%wt%, and viscosity is 354.3mPas.
Embodiment 2
Improve a method for water Jiao slurry stability, the raw material of water Jiao slurry comprises the refinery coke of 64 parts, the active sludge of 24 parts, the water of 12 parts, the dispersion agent of 1.0 parts in mass fraction; Its operation steps is as follows:
(1) use sieve refinery coke is carried out process of sieving, get particle diameter be less than 0.8mm refinery coke reservation for subsequent use;
(2) dispersion agent is soluble in water, stir for subsequent use;
(3) dispersant solution in step (2) and active sludge are mixed together evenly, and pour in ball grinder together with the refinery coke handled well in step (1), in described ball grinder, the number ratio of large ball and bead is 30:150, rotational speed of ball-mill is 380r/min, and Ball-milling Time is 50min; Large spherical diameter is 20mm, and the small ball's diameter is 10mm;
(4) obtained slurry uses 40 mesh sieve to filter after completing by ball milling, removing foreign material and macrobead, namely obtains water Jiao slurry.
Wherein, refinery coke is the by product of refinery's delayed coking, and its carbon content is 85-95wt%, and ash oontent is lower than 1wt%, and volatile content is lower than 10wt%, and calorific value is more than 30MJ/kg.The residual active sludge that active sludge produces for the process of Love psychology treatment system mesophytization, forms jointly primarily of oil, water, slag and microorganism, and after dehydration, its water ratio is 75wt%.Dispersion agent is naphthalenesulfonate condensation compound and sulfonated lignin;
Final its solid content of obtained water Jiao slurry is 70wt%, and viscosity is 1149.7mPas.
Embodiment 3
Improve a method for water Jiao slurry stability, the raw material of water Jiao slurry comprises the refinery coke of 65 parts, the active sludge of 11 parts, the water of 24 parts, the dispersion agent of 0.8 part in mass fraction; Its operation steps is as follows:
(1) use sieve refinery coke is carried out process of sieving, get particle diameter be less than 0.8mm refinery coke reservation for subsequent use;
(2) dispersion agent is soluble in water, stir for subsequent use;
(3) dispersant solution in step (2) and active sludge are mixed together evenly, and pour in ball grinder together with the refinery coke handled well in step (1), in described ball grinder, the number ratio of large ball and bead is 30:150, rotational speed of ball-mill is 300r/min, and Ball-milling Time is 40min; Large spherical diameter is 20mm, and the small ball's diameter is 10mm;
(4) obtained slurry uses 40 mesh sieve to filter after completing by ball milling, removing foreign material and macrobead, namely obtains water Jiao slurry.
Wherein, refinery coke is the by product of refinery's delayed coking, and its carbon content is 85-95wt%, and ash oontent is lower than 1wt%, and volatile content is lower than 10wt%, and calorific value is more than 30MJ/kg.The residual active sludge that active sludge produces for the process of Love psychology treatment system mesophytization, forms jointly primarily of oil, water, slag and microorganism, and after dehydration, its water ratio is 73wt%.Dispersion agent is sulfonated lignin and sodium polystyrene sulfonate mixing;
Final its solid content of obtained water Jiao slurry is 68wt%, and viscosity is 983.4mPas.
Embodiment 4
Improve a method for water Jiao slurry stability, the raw material of water Jiao slurry comprises the refinery coke of 62 parts, the active sludge of 11 parts, the water of 27 parts, the dispersion agent of 0.7 part in mass fraction; Its operation steps is as follows:
(1) use sieve refinery coke is carried out process of sieving, get particle diameter be less than 0.8mm refinery coke reservation for subsequent use;
(2) dispersion agent is soluble in water, stir for subsequent use;
(3) dispersant solution in step (2) and active sludge are mixed together evenly, and pour in ball grinder together with the refinery coke handled well in step (1), in described ball grinder, the number ratio of large ball and bead is 30:150, rotational speed of ball-mill is 280r/min, and Ball-milling Time is 35min; Large spherical diameter is 20mm, and the small ball's diameter is 10mm;
(4) obtained slurry uses 40 mesh sieve to filter after completing by ball milling, removing foreign material and macrobead, namely obtains water Jiao slurry.
Wherein, refinery coke is the by product of refinery's delayed coking, and its carbon content is 85-95wt%, and ash oontent is lower than 1wt%, and volatile content is lower than 10wt%, and calorific value is more than 30MJ/kg.The residual active sludge that active sludge produces for the process of Love psychology treatment system mesophytization, forms jointly primarily of oil, water, slag and microorganism, and after dehydration, its water ratio is 72wt%.Dispersion agent is the combination of naphthalenesulfonate condensation compound, sulfonated lignin and sodium polystyrene sulfonate;
Final its solid content of obtained water Jiao slurry is 65wt%, and viscosity is 753.1mPas.
Embodiment 5
Improve a method for water Jiao slurry stability, the raw material of water Jiao slurry comprises the refinery coke of 61 parts, the active sludge of 23 parts, the water of 26 parts, the dispersion agent of 0.9 part in mass fraction; Its operation steps is as follows:
(1) use sieve refinery coke is carried out process of sieving, get particle diameter be less than 0.8mm refinery coke reservation for subsequent use;
(2) dispersion agent is soluble in water, stir for subsequent use;
(3) dispersant solution in step (2) and active sludge are mixed together evenly, and pour in ball grinder together with the refinery coke handled well in step (1), in described ball grinder, the number ratio of large ball and bead is 30:150, rotational speed of ball-mill is 260r/min, and Ball-milling Time is 35min; Large spherical diameter is 20mm, and the small ball's diameter is 10mm;
(4) obtained slurry uses 40 mesh sieve to filter after completing by ball milling, removing foreign material and macrobead, namely obtains water Jiao slurry.
Wherein, refinery coke is the by product of refinery's delayed coking, and its carbon content is 85-95wt%, and ash oontent is lower than 1wt%, and volatile content is lower than 10wt%, and calorific value is more than 30MJ/kg.The residual active sludge that active sludge produces for the process of Love psychology treatment system mesophytization, forms jointly primarily of oil, water, slag and microorganism, and after dehydration, its water ratio is 74wt%.Dispersion agent is one in naphthalenesulfonate condensation compound, sulfonated lignin, sodium polystyrene sulfonate or any several mixing;
Final its solid content of obtained water Jiao slurry is 67wt%, and viscosity is 904.9mPas.
Claims (6)
1. improve a method for water Jiao slurry stability, it is characterized in that: the raw material of described water Jiao slurry comprises refinery coke, the active sludge of 7-24 part, the water of 12-33 part, the dispersion agent of 0.6-1.0 part of 60-65 part in mass fraction; Its operation steps is as follows:
(1) use sieve refinery coke is carried out process of sieving, get particle diameter be less than 0.8mm refinery coke reservation for subsequent use;
(2) dispersion agent is soluble in water, stir for subsequent use;
(3) dispersant solution in step (2) and active sludge are mixed together evenly, and pour in ball grinder together with the refinery coke handled well in step (1), in described ball grinder, the number ratio of large ball and bead is 30:150, rotational speed of ball-mill is 230-380r/min, and Ball-milling Time is 30-50min;
(4) obtained slurry uses 40 mesh sieve to filter after completing by ball milling, removing foreign material and macrobead, namely obtains water Jiao slurry.
2. the method for raising water Jiao slurry stability according to claim 1, it is characterized in that: described refinery coke is the by product of refinery's delayed coking, and its carbon content is 85-95wt%, and ash oontent is lower than 1wt%, volatile content is lower than 10wt%, and calorific value is more than 30MJ/kg.
3. the method for raising water Jiao slurry stability according to claim 1, it is characterized in that: the residual active sludge that described active sludge produces for the process of Love psychology treatment system mesophytization, jointly form primarily of oil, water, slag and microorganism, after dehydration, its water ratio is 70-75wt%.
4. the method for raising water according to claim 1 Jiao slurry stability, is characterized in that: described dispersion agent is one in naphthalenesulfonate condensation compound, sulfonated lignin, sodium polystyrene sulfonate or any several mixing.
5. the method for raising water Jiao slurry stability according to claim 1, it is characterized in that: described large spherical diameter is 20mm, the small ball's diameter is 10mm.
6. the method for raising water Jiao slurry stability according to claim 1, is characterized in that: described its solid content of obtained water Jiao slurry is 62-70wt%, and viscosity is not higher than 1200mPas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510329097.5A CN104877721B (en) | 2015-06-15 | 2015-06-15 | Method for improving stability of water-coke slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510329097.5A CN104877721B (en) | 2015-06-15 | 2015-06-15 | Method for improving stability of water-coke slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104877721A true CN104877721A (en) | 2015-09-02 |
| CN104877721B CN104877721B (en) | 2017-04-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105482860A (en) * | 2016-01-21 | 2016-04-13 | 中国寰球工程公司辽宁分公司 | Treatment method of methanol rectification wastewater in coal chemical industry |
| CN106811250A (en) * | 2015-11-27 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of water coal coke slurry and preparation method thereof |
| CN109097131A (en) * | 2018-08-21 | 2018-12-28 | 芜湖聚焰生物质能源科技有限公司 | A kind of preprocess method preparing biomass fuel bamboo scraps |
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| CN101935564A (en) * | 2010-09-08 | 2011-01-05 | 山东科技大学 | Method for manufacturing oil coke water slurry |
| CN103060031A (en) * | 2012-12-26 | 2013-04-24 | 东南大学 | Papermaking black liquor modified sludge-petroleum coke slurry and preparation method thereof |
| CN103468333A (en) * | 2012-06-06 | 2013-12-25 | 中国石油天然气股份有限公司 | Oily sludge coke water slurry and preparation method thereof |
| CN104651003A (en) * | 2013-11-22 | 2015-05-27 | 中国石油天然气股份有限公司 | Sludge-petroleum coke-slurry and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935564A (en) * | 2010-09-08 | 2011-01-05 | 山东科技大学 | Method for manufacturing oil coke water slurry |
| CN103468333A (en) * | 2012-06-06 | 2013-12-25 | 中国石油天然气股份有限公司 | Oily sludge coke water slurry and preparation method thereof |
| CN103060031A (en) * | 2012-12-26 | 2013-04-24 | 东南大学 | Papermaking black liquor modified sludge-petroleum coke slurry and preparation method thereof |
| CN104651003A (en) * | 2013-11-22 | 2015-05-27 | 中国石油天然气股份有限公司 | Sludge-petroleum coke-slurry and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106811250A (en) * | 2015-11-27 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of water coal coke slurry and preparation method thereof |
| CN106811250B (en) * | 2015-11-27 | 2019-04-05 | 中国石油化工股份有限公司 | A kind of water coal coke slurry and preparation method thereof |
| CN105482860A (en) * | 2016-01-21 | 2016-04-13 | 中国寰球工程公司辽宁分公司 | Treatment method of methanol rectification wastewater in coal chemical industry |
| CN105482860B (en) * | 2016-01-21 | 2018-05-22 | 中国寰球工程公司辽宁分公司 | A kind of processing method of coal chemical industry methanol rectification waste water |
| CN109097131A (en) * | 2018-08-21 | 2018-12-28 | 芜湖聚焰生物质能源科技有限公司 | A kind of preprocess method preparing biomass fuel bamboo scraps |
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| CN104877721B (en) | 2017-04-26 |
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