CN101555056B - High-efficiency emulsion splitter - Google Patents
High-efficiency emulsion splitter Download PDFInfo
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- CN101555056B CN101555056B CN2009100225875A CN200910022587A CN101555056B CN 101555056 B CN101555056 B CN 101555056B CN 2009100225875 A CN2009100225875 A CN 2009100225875A CN 200910022587 A CN200910022587 A CN 200910022587A CN 101555056 B CN101555056 B CN 101555056B
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- demulsifier
- oil
- oiling
- octyl phenol
- polyoxyethylene ether
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention provides a high-efficiency emulsion splitter used in the oily industrial sewage disposal of a delayed coking effluent oil treatment system of an oil refinery, which is prepared by evenly mixing 20-30% of C12 fatty alcohol polyoxyethylene ether, 30-40% of polyethylene polyamine polyoxypropylene polyoxyethylene ether and 40-50% of sec-octyl phenol polyoxyethylene ether according to the weight percentage in a way of mechanical mixing. The high-efficiency emulsion has good oil removing effect on treating industrial sewage of delayed coking of an oil refinery, can the oil removing rate reaches over 85%, so that the industrial using emission of an oil refining device can reach the standard.
Description
Technical field
The invention belongs to the industrial sewage treatment technology field, relate to a kind of auxiliary chemicals demulsifier, relating in particular to a kind of is the demulsifier of primary raw material with secondary octyl phenol polyethenoxy ethers, is mainly used in the processing of oil plant tar from delayed coking treatment system oil-containing trade effluent.
Background technology
In petroleum refining process, oil content is too high and make water quality be difficult to reach the situation of discharge standard in the normal trade effluent that the discharging of oil refining processing unit (plant) occurs.Along with the increase of oil plant heavy crude proportion, acid value for crude oil also presents ascendant trend.The increase of acid number makes that crude oil oil-water emulsion phenomenon in the refining process is serious day by day, and the oil content of wastewater of discharging is too high, has exceeded refinery's device sewage discharge index.This not only can cause environmental pollution, and causes a large amount of oil product losses.In order to solve the too high problem of oil content in the oil refining enterprise trade effluent, the general employing of oil plant will be refined oil the trade effluent that produces in the processing unit (plant) and be utilized de-oiling agent to carry out de-oiling to handle, and make it reach discharging again after PetroChina Company Limited.'s discharge standard.
The demulsifier of present domestic use mainly contains DR-951 demulsifier, BS-108 demulsifier, DE-0712 demulsifier, but these demulsifiers are because de-oiling rate not high enough (general de-oiling rate is about 60%) can not satisfy the requirement of process units trade effluent discharging.
Summary of the invention
The purpose of this invention is to provide the higher high-efficient demulsifier of a kind of oil removal rate.
High-efficient demulsifier of the present invention is to be mixed promptly by the mode of following raw materials by weight percent with mechanical blending:
C
12AEO: 20～30%
Polyethylene polyamine polyoxyethylene polyoxypropylene ether: 30～40%
Secondary octyl phenol polyethenoxy ether: 40～50%.
Described C
12The structural formula of AEO is C
12H
25O (CH
2CH
2O)
7H.
Formula R RN (the C of described polyethylene polyamine polyoxyethylene polyoxypropylene ether
2H
4NR) PC
2H
4NRR.
The structural formula C of described secondary octyl phenol polyethenoxy ether
8H
17C
6H
4O (CH
2CH
2O)
6H.
The present invention compared with prior art has the following advantages:
1, demulsifier of the present invention is a kind of active transforming agent, can reduce the activity of oil droplets.
2, demulsifier of the present invention is a kind of profit dispersant with high efficiency, and profit is separated under emulsified state fast.
3, demulsifier of the present invention is a kind of flocculation agent, and oil is assembled under emulsified state fast, reaches the purpose of dispersion.
4, demulsifier of the present invention de-oiling in the trade effluent of handling the oil plant delayed coking is effective, and the de-oiling rate can reach more than 85%, has guaranteed that the industry of oil refining apparatus makes emission compliance.
The specific embodiment
Further specify the preparation and the de-oiling effect of demulsifier of the present invention below by specific embodiment.
Embodiment 1: preparation and the application of demulsifier RK-10 (A)
Set of dispense is than (by weight):
C
12(structural formula is C to AEO
12H
25O (CH
2CH
2O)
7H) 25%, polyethylene polyamine polyoxyethylene polyoxypropylene ether (formula R RN (C
2H
4NR) PC
2H
4NRR) 35%, secondary octyl phenol polyethenoxy ether (molecular formula C
8H
17C
6H
4O (CH
2CH
2O)
6H) 40%.
Preparation method: above-mentioned each component is mixed promptly by the mode of described formula ratio with mechanical blending.
Experimental subjects: delayed coking unit trade effluent.
Experimental technique: take by weighing delayed coking unit trade effluent 45 grams, place 50ml tool plug in vitro, add the different demulsifier of concentration respectively and put into 30 ℃ of waters bath with thermostatic control, left standstill 2 minutes, record de-oiling rate (determined by ultraviolet spectrophotometry) and the results are shown in Table 1.
Table 1 variable concentrations demulsifier breakdown of emulsion de-oiling effect
As can be seen from Table 1, demulsifier RK-10 (A) is when concentration is 50ppm, and the de-oiling effect is better, is 88.7%.
Embodiment 2: preparation and the application of demulsifier RK-10 (B)
Component (by weight):
C
12(structural formula is C to AEO
12H
25O (CH
2CH
2O)
7H) 20%, polyethylene polyamine polyoxyethylene polyoxypropylene ether (formula R RN (C
2H
4NR) PC
2H
4NRR) 35%, secondary octyl phenol polyethenoxy ether (molecular formula C
8H
17C
6H
4O (CH
2CH
2O)
6H) 45%.
The preparation of demulsifier and experimental subjects, experimental technique are identical with experiment 1, and experimental result sees Table 2
Table 2 variable concentrations demulsifier de-oiling effect
As can be seen from Table 2, demulsifier RK-10 (B) is 50ppm when above in concentration, and the de-oiling effect is better, and the de-oiling rate reaches more than 85%, makes the sewage discharge qualification rate of this device up to standard.
The contrast experiment 1:
Demulsifier RK-10 of the present invention (A1) forms (by weight): C
12AEO 30%, polyethylene polyamine polyoxyethylene polyoxypropylene ether 40%, secondary octyl phenol polyethenoxy ether 30%.
Preparation and experiment condition are the same, the results are shown in Table 3.
Table 3 variable concentrations demulsifier RK-10 (A1) breakdown of emulsion de-oiling effect
Contrast experiment's example 2
Demulsifier RK-10 of the present invention (B1) forms (by weight): C
12AEO 30%, polyethylene polyamine polyoxyethylene polyoxypropylene ether 20%, secondary octyl phenol polyethenoxy ether 50%.
Experiment condition is the same, the results are shown in Table 4.
Table 4 variable concentrations demulsifier RK-10 (B1) breakdown of emulsion de-oiling effect
By table 3,4 as can be seen, demulsifier RK-10 (A1) and RK-10 (B1) de-oiling rate are lower, and reason is that active ingredient does not reach given scope among demulsifier RK-10 (A1) and the RK-10 (B1), this shows that the active ingredient in this agent is essential.
The content of each composition can be selected according to the difference of oil content in the sewage in the demulsifier of the present invention, and the de-oiling effect of demulsifier and its content in water have confidential relation in addition, therefore must control the addition of medicament well.
Contrast experiment's example 3
The composition of demulsifier (by weight): C
12AEO 25%, polyethylene polyamine polyoxyethylene polyoxypropylene ether 35%, secondary octyl phenol polyethenoxy ether 40%.
Contrast demulsifier: generally the DR-951 demulsifier of Shi Yonging, BS-108 demulsifier, BSF-1 demulsifier, DE-0712 demulsifier.
Experimental subjects, experimental technique and condition are the same, experimental result table 3.
The de-oiling effect of table 5 variable concentrations and different medicaments
| Demulsifier concentration | 0mg/L | 15mg/L | 25mg/L | 50mg/L | 75mg/L |
| Demulsifier RK-10 (A) content de-oiling rate % | 7240.3 | 1398.0 80.69 | 1267.1 82.4 | 1072.1 85.2 | 981.5 86.4 |
| DR-951 content de-oiling rate % | 7235.1 | 2500.4 65.4 | 2158.3 70.1 | 2079.2 71.2 | 1982.6 72.6 |
| BS-108 content de-oiling rate % | 7248.7 | 2328.7 67.4 | 2215.6 69.4 | 2102.5 71.0 | 2021.3 72.1 |
| BSF-1 content de-oiling rate % | 7197.2 | 2370.2 67.1 | 2255.5 68.6 | 2157.4 70.0 | 2060.2 71.4 |
| DE-0712 content de-oiling rate % | 7258.7 | 2232.4 69.2 | 2200.5 69.7 | 2160.2 70.2 | 2173.6 70.0 |
We can draw by table 5, and this high-efficient demulsifier has good de-oiling effect, and concentration is when 50mg/L, the de-oiling best results, and the de-oiling rate can reach 85%, and other several like product de-oiling rates are lower, and the de-oiling rate is about 70%.
Claims (4)
1. high-efficient demulsifier is to be composited by following raw materials by weight percent:
C
12AEO: 20～30%
Polyethylene polyamine polyoxyethylene polyoxypropylene ether: 30～40%
Secondary octyl phenol polyethenoxy ether: 40～50%.
2. high-efficient demulsifier as claimed in claim 1 is characterized in that: described C
12The structural formula of AEO is C
12H
25O (CH
2CH
2O)
7H.
3. high-efficient demulsifier as claimed in claim 1 is characterized in that: the structural formula of described secondary octyl phenol polyethenoxy ether is C
8H
17C
6H
4O (CH
2CH
2O)
6H.
4. the preparation method of high-efficient demulsifier according to claim 1 is with C
12AEO, polyethylene polyamine polyoxyethylene polyoxypropylene ether, secondary octyl phenol polyethenoxy ether mix promptly by the mode of described formula ratio with mechanical blending.
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|---|---|---|---|
| CN2009100225875A CN101555056B (en) | 2009-05-05 | 2009-05-05 | High-efficiency emulsion splitter |
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|---|---|---|---|
| CN2009100225875A CN101555056B (en) | 2009-05-05 | 2009-05-05 | High-efficiency emulsion splitter |
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|---|---|
| CN101555056A CN101555056A (en) | 2009-10-14 |
| CN101555056B true CN101555056B (en) | 2011-09-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826728A (en) * | 2012-09-06 | 2012-12-19 | 中国石油天然气股份有限公司 | Cleaning agent applied to treatment of oily sludge by hot washing method and preparation method thereof |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104419519B (en) * | 2013-08-30 | 2017-08-22 | 中国石油化工股份有限公司 | A kind of method for emulsifying biodiesel demulsification |
| CN104556624B (en) * | 2013-10-22 | 2016-02-10 | 中国石油化工股份有限公司 | A kind of greasy filth emulsion splitter and greasy filth advanced treatment process |
| CN103951009A (en) * | 2014-02-17 | 2014-07-30 | 宜兴汉光高新石化有限公司 | Coking demulsifier and preparation method thereof |
| CN105540738B (en) * | 2015-12-17 | 2017-12-08 | 广州小众环保科技有限公司 | A kind of efficient demulsifier and its preparation method and application |
| CN106190229A (en) * | 2016-08-08 | 2016-12-07 | 安徽炎胜新材料科技有限公司 | A kind of super-viscous oil high-efficient demulsifier and preparation method thereof |
-
2009
- 2009-05-05 CN CN2009100225875A patent/CN101555056B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826728A (en) * | 2012-09-06 | 2012-12-19 | 中国石油天然气股份有限公司 | Cleaning agent applied to treatment of oily sludge by hot washing method and preparation method thereof |
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| CN101555056A (en) | 2009-10-14 |
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