CN101397160B - Demulsifier for thick oil sewage - Google Patents
Demulsifier for thick oil sewage Download PDFInfo
- Publication number
- CN101397160B CN101397160B CN2007101753747A CN200710175374A CN101397160B CN 101397160 B CN101397160 B CN 101397160B CN 2007101753747 A CN2007101753747 A CN 2007101753747A CN 200710175374 A CN200710175374 A CN 200710175374A CN 101397160 B CN101397160 B CN 101397160B
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- CN
- China
- Prior art keywords
- oil sewage
- demulsifier
- sewage
- value
- thick oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010865 sewage Substances 0.000 title claims abstract description 30
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 239000002440 industrial waste Substances 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 239000003921 oil Substances 0.000 claims description 19
- 239000000839 emulsion Substances 0.000 claims description 11
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 10
- 239000000295 fuel oil Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000015556 catabolic process Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000000247 postprecipitation Methods 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 2
- 239000013078 crystal Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a thick oil sewage demulsifier, which takes industrial waste acid and polyaluminium chloride polyacrylamide as main raw materials, the weight percentages of the industrial waste acid and the polyaluminium chloride polyacrylamide are respectively 70 percent and 30 percent, the demulsifier is added into thick oil sewage to adjust the PH value to be 7.0, and the polyacrylamide is added to realize the demulsification and the oil-water separation of the thick oil sewage after the quick mixing, the slow reaction and the precipitation. The thick oil sewage treating agent provided by the invention has low cost and good treatment effect, and the process flow of sewage treatment can be greatly shortened by using the agent, so that good economic benefit can be obtained.
Description
Technical field:
The present invention relates to a kind of chemical additive that is used for the viscous crude field sewage disposal, belong to oilfield chemistry sewage disposal technology class.
Background technology:
It is an important step of viscous crude field surface production gathering system that condensed oil sewage is handled.Because condensed oil sewage has characteristics such as the profit density difference is little, emulsification is serious, viscosity is big, composition complexity, causes its processing technological flow long, investment is big, the running cost height.At present, the condensed oil sewage processing technological flow is all long both at home and abroad, and treatment effect is also undesirable, and its major cause is overemphasized back segment filtering system, has ignored leading portion and has removed oil system.Removing oil system is the basic and crucial of whole condensed oil sewage treatment scheme, and the quality of deoiling effect depends on high-efficient demulsifier.Organic and inorganic two big classes of common chemical agent aspect the condensed oil sewage processing at present both at home and abroad, organic class mainly is polyacrylamide, rp demulsification class, mineral-type mainly contains polymerize aluminum chloride, poly-iron class.The effect of above-mentioned medicament is all not ideal enough, exists respectively that dosage is big, oil removing and remove shortcomings such as suspended substance weak effect, floc sedimentation body are little and loose, breakdown of emulsion ability, wastewater treatment efficiency difference, can not satisfy and produce actual needs.
Summary of the invention:
The object of the present invention is to provide and a kind ofly can shorten the condensed oil sewage processing technological flow, reduce running cost and the good heavy oil sewage demulsifier of treatment effect.
Technical scheme of the present invention is as follows: this kind heavy oil sewage demulsifier is a main raw material with industrial waste acid and polymerize aluminum chloride, the two weight percent is respectively 70% and 30%, it is added after condensed oil sewage is adjusted to pH value and is 7.0, add polyacrylamide, through short mix, slow reaction and post precipitation, realize condensed oil sewage breakdown of emulsion and oily water separation.The dosing technology and the controlled variable of this emulsion splitter are as follows:
1, the emulsion splitter that makes after will being mixed by the industrial waste acid of weight percent 70% and 30% polymerize aluminum chloride adds in the condensed oil sewage, pH value was controlled at for 7.0 (being neutral), and carries out short mix, and the GT value is controlled at 10
4-10
5, mixing time was 30 seconds;
2, add polyacrylamide (mass concentration 1-3mg/L) and carry out slow reaction, the GT value is controlled at 10
4-10
5, the reaction times was 10 seconds;
3, precipitation, the time was 10 seconds.
Whole breakdown of emulsion disengaging time is no more than 1 minute, the rapid breakdown of emulsion of condensed oil sewage in this process, and the profit sharp separation, the oily floating upward quickly after the separation, alumen ustum is fine and closely woven stable, does not sink, and is recyclable.
Condensed oil sewage treatment agent cost provided by the invention is low, and treatment effect is good, utilizes it can shorten the technical process of sewage disposal greatly, obtains good economic benefit.
Embodiment 1: to the processing of special extremely-viscous crude sewage.Add emulsion splitter by aforementioned dosing technology, dosage is 150mg/L, pH value control 7.0, water after short mix, slow reaction, precipitation process is as clear as crystal, water-oil interface are clear, and suspension content is reduced to 1.8mg/L by 6598mg/L, and oleaginousness is reduced to 1.6mg/L by 16713mg/L;
Embodiment 2: to the common heavy oil sewage disposal.The emulsion splitter dosage is 75mg/L, handles the back oleaginousness and reduces to 0.5mg/L by 8331mg/L, and suspension content is reduced to 1.6mg/L by 265mg/L, and water is as clear as crystal, and water-oil interface are clear.
Claims (1)
1. heavy oil sewage demulsifier, it is characterized in that: this kind heavy oil sewage demulsifier is a main raw material with industrial waste acid and polymerize aluminum chloride, the two weight percent is respectively 70% and 30%, it is added after condensed oil sewage is adjusted to the pH value and is 7.0, polyacrylamide adds through short mix, slow reaction and post precipitation, realizes condensed oil sewage breakdown of emulsion and oily water separation; The dosing technology and the controlled variable of this emulsion splitter are as follows:
(1), the emulsion splitter that makes after will being mixed by the industrial waste acid of weight percent 70% and 30% polymerize aluminum chloride adds in the condensed oil sewage, the pH value is controlled at 7.0, and carries out short mix, the GT value is controlled at 10
4-10
5, mixing time was 30 seconds;
(2), add polyacrylamide by mass concentration 1-3mg/L and carry out slow reaction, the GT value is controlled at 10
4-10
5, the reaction times was 10 seconds;
(3), the precipitation, the time was 10 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101753747A CN101397160B (en) | 2007-09-29 | 2007-09-29 | Demulsifier for thick oil sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101753747A CN101397160B (en) | 2007-09-29 | 2007-09-29 | Demulsifier for thick oil sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101397160A CN101397160A (en) | 2009-04-01 |
| CN101397160B true CN101397160B (en) | 2010-11-03 |
Family
ID=40516032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101753747A Active CN101397160B (en) | 2007-09-29 | 2007-09-29 | Demulsifier for thick oil sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101397160B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863554A (en) * | 2014-02-26 | 2015-08-26 | 中国石油天然气股份有限公司 | Profile control agent for super heavy oil well and application |
| CN106007068A (en) * | 2016-06-30 | 2016-10-12 | 四川欣欣环保科技有限公司 | Method for treating emulsifying wastewater by use of adsorption flocculant |
| CN115196777A (en) * | 2021-04-13 | 2022-10-18 | 中国石油天然气股份有限公司 | Oil field sewage treatment method and treatment system |
| CN113150819A (en) * | 2021-04-30 | 2021-07-23 | 东营金昱技术开发有限公司 | Thick oil demulsifier for crude oil exploitation and preparation process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210819A (en) * | 1997-09-10 | 1999-03-17 | 中国石油化工总公司 | Compound demulsifying flocculant |
| CN1944289A (en) * | 2006-10-23 | 2007-04-11 | 中国石油大学(北京) | Pre-treating process for sewage from thick oil refining |
-
2007
- 2007-09-29 CN CN2007101753747A patent/CN101397160B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210819A (en) * | 1997-09-10 | 1999-03-17 | 中国石油化工总公司 | Compound demulsifying flocculant |
| CN1944289A (en) * | 2006-10-23 | 2007-04-11 | 中国石油大学(北京) | Pre-treating process for sewage from thick oil refining |
Non-Patent Citations (5)
| Title |
|---|
| JP特开平10-118662A 1998.05.12 |
| 杨永哲等.改进型复合碱式氯化铝在处理含油废水中的应用.给水排水27 12.2001,27(12),76-78. |
| 杨永哲等.改进型复合碱式氯化铝在处理含油废水中的应用.给水排水27 12.2001,27(12),76-78. * |
| 费庆志等.静态混凝破乳吸附法处理乳化废液.环境工程15 1.1997,15(1),9-11. |
| 费庆志等.静态混凝破乳吸附法处理乳化废液.环境工程15 1.1997,15(1),9-11. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101397160A (en) | 2009-04-01 |
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