CN1693429A - Composite type water coal slurry additive - Google Patents
Composite type water coal slurry additive Download PDFInfo
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- CN1693429A CN1693429A CN 200510012024 CN200510012024A CN1693429A CN 1693429 A CN1693429 A CN 1693429A CN 200510012024 CN200510012024 CN 200510012024 CN 200510012024 A CN200510012024 A CN 200510012024A CN 1693429 A CN1693429 A CN 1693429A
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- coal
- additive
- slurry
- coal slurry
- water coal
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- Liquid Carbonaceous Fuels (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
A composite additive for preparing water coal slurry is prepared from the petroleum monosulfonate (bisulfonate and/or polysulfonate) and an inorganic salt. The prepared water coal slurry features low viscosity and high stability.
Description
Technical field
The present invention relates to a kind of slurries additive agent, be applicable to the coal water slurry of preparation high density.
Background technology
Coal water slurry (CWS, coal water slurry) be that a kind of novel low pollution is for oil fuel, it is the mixture that the additive of the coal that distributed by 60～70% different grain sizes, 30～40% water and about 1.5% is made, it had both kept the coal original physical characteristics, has the same flowability of oil and stable again, can be easy to dress, storage, realize pipe-line transportation and efficient burning as oil, be called as liquid coal product.Because the efficiency of combustion of coal water slurry can be up to more than 95%, and the quantity discharged of sulfurous gas, oxynitride and dust concentration all can reach environmental requirement, be widely used in station boiler, Industrial Boiler and Industrial Stoves for coal, for oil, for gas firing, also can be used as gasified raw material, be used to produce synthetic ammonia, synthesizing formaldehyde etc.
In the raw materials cost of coal water slurry, except the coal dust that accounts for weight 70%, the additive that accounts for weight about 1.5% has constituted the second largest cost factor of coal water slurry.Because additive all has direct influence to key indexs such as viscosity of coal-water slurry, concentration and stability, so reduce the cost of additive, improve the usefulness of additive, be a key subject of present COAL-WATER SLURRY TECHNOLOGY.Slurries additive agent is mainly based on naphthalene series, humic acid series, xylogen series, oleic series and related compound type additive, and wherein using is the naphthalene system slurries additive more widely.Though China has carried out more research to slurries additive agent, but still exist suitable coal narrow range, cost than problems such as height.
Summary of the invention
The technical problem to be solved in the present invention is that a kind of slurries additive agent of cheapness is provided.
Technical scheme of the present invention is:
This slurries additive agent is a sulfonated petro-leum, and it not only has dissemination but also have stabilization, and each elephant of China all has the production of this series products.At present, sulfonated petro-leum is widely used in and improves in the petroleum recovery technology.
This additive mainly is made up of monosulfonate, disulfonate and polysulfonate, can play collaborative dissemination to coal particle, makes slurry have lower viscosity.
The inorganic salt that comprise in this additive can play stable effect to coal water slurry again.
This additive both can use separately, also can with anion surfactant or the composite uses of Soxylat A 25-7 nonionic surface active agent such as naphthalenesulfonate, carboxylate salt.
Additive amount is 1～2% of a butt coal dust weight.
This additive can be made into the aqueous solution of any concentration, joins in ball mill or the agitation vat with the form of solution.
Under the low-viscosity situation, can prepare the coal water slurry that coal dust content is 60～65wt% with this additive, this slurry can leave standstill stable for a long time, satisfies the requirement of pumping, atomizing and stable burning simultaneously.
The invention has the beneficial effects as follows:
These additive wide material sources, cheap can greatly reduce the preparation cost of coal water slurry.
Embodiment
The invention will be further described by application example.
One of this Application of Additives:
Coal sample: Shandong Aug. 1st pit coal;
Additive amount: sulfonated petro-leum is 1.5% of a butt coal dust weight;
Water coal slurry property: water coal slurry concentration is 65%, and at 25 ℃, shearing rate is 100s
-1The time, apparent viscosity is 620mPa.s, can stablize and store more than the 20d, slurry is the yield pseudoplasticity flow pattern.
Two of this Application of Additives:
Coal sample: Shandong Aug. 1st pit coal;
Additive amount: sulfonated petro-leum and naphthalenesulfonate formaldehyde condensation compound is composite, and this sulfonated petro-leum is 1% of a butt coal dust weight, and naphthalenesulfonate formaldehyde condensation compound is 0.5% of a butt coal dust weight;
Water coal slurry property: water coal slurry concentration is 70%, and at 25 ℃, shearing rate is 100s
-1The time, apparent viscosity is 1020mPa.s, can stablize and store more than the 20d, slurry is the yield pseudoplasticity flow pattern.
Three of this Application of Additives:
Coal sample: Inner Mongol Meng Xi pit coal;
Additive amount: sulfonated petro-leum is 1.5% of a butt coal dust weight;
Water coal slurry property: water coal slurry concentration is 60%, and at 25 ℃, shearing rate is 100s
-1The time, apparent viscosity is 730mPa.s, can stablize and store more than the 10d.
Four of this Application of Additives:
Coal sample: the accurate Ge Er pit coal in the Inner Mongol;
Additive amount: sulfonated petro-leum is 1.5% of a butt coal dust weight;
Water coal slurry property: water coal slurry concentration is 60%, and at 25 ℃, shearing rate is 100s
-1The time, apparent viscosity is 880mPa.s, can stablize and store more than the 10d.
By application example as can be seen, petroleum sulfonate surfactant of the present invention can make coal dust content reach 60%～70% under low-viscosity, can leave standstill stable for a long time, and satisfy pumping, atomizing and incendiary various requirement, cheap, the wide material sources of this additive can be prepared the higher coal water slurry fuel of cost performance.
Claims (2)
1. composite coal-water fluid additive, it is characterized in that: this additive is a sulfonated petro-leum.
2. a kind of composite coal-water fluid additive according to claim 1 is characterized in that: sulfonated petro-leum can also with naphthalenesulfonate, carboxylate anion's tensio-active agent or the composite use of Soxylat A 25-7 nonionic surface active agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510012024 CN1693429A (en) | 2005-06-28 | 2005-06-28 | Composite type water coal slurry additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510012024 CN1693429A (en) | 2005-06-28 | 2005-06-28 | Composite type water coal slurry additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1693429A true CN1693429A (en) | 2005-11-09 |
Family
ID=35352558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510012024 Pending CN1693429A (en) | 2005-06-28 | 2005-06-28 | Composite type water coal slurry additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1693429A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329669A (en) * | 2010-07-14 | 2012-01-25 | 上海焦化有限公司 | Coal water slurry additive |
-
2005
- 2005-06-28 CN CN 200510012024 patent/CN1693429A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329669A (en) * | 2010-07-14 | 2012-01-25 | 上海焦化有限公司 | Coal water slurry additive |
| CN102329669B (en) * | 2010-07-14 | 2015-10-28 | 上海华谊能源化工有限公司 | Slurries additive agent |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |