CN100422089C - De-oiling agent and its prepn - Google Patents
De-oiling agent and its prepn Download PDFInfo
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- CN100422089C CN100422089C CNB2006100431756A CN200610043175A CN100422089C CN 100422089 C CN100422089 C CN 100422089C CN B2006100431756 A CNB2006100431756 A CN B2006100431756A CN 200610043175 A CN200610043175 A CN 200610043175A CN 100422089 C CN100422089 C CN 100422089C
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- oiling agent
- oiling
- polyoxyethylene polyoxypropylene
- polyoxypropylene ethers
- alkylphenol
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Abstract
The present invention provides one kind of de-oiling agent for treating oil-containing industrial sewage from oil refinery. The de-oiling agent is compounded with fatty amine polyoxypropylene polyoxyethylene ether in 30-50 wt% and alkyl resinox polyoxypropylene polyoxyethylene ether in 50-70 wt%. The de-oiling agent has high de-oiling effect and de-oiling rate up to 75 %, and can reduce the oil containing amount of oil refining effluent to below 150 mg/L.
Description
Technical field
The invention belongs to the industrial sewage treatment technology field, relate to a kind of auxiliary chemicals that refinery oil refining apparatus oil-containing industrial sewage is handled that are used for, relating in particular to a kind of is the de-oiling agent of main raw material with alkyl formaldehyde resin polyoxy ethers.
Background technology
In petroleum refining process, oleaginousness is too high and make water quality be difficult to reach the situation of PetroChina Company Limited.'s emission standard in the normal industrial sewage that the discharging of oil refining processing unit (plant) occurs, and along with the increase of refinery 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 course of processing is serious day by day, and the oil content of wastewater of discharging is too high, has exceeded refinery's device sewage discharge index (industrial sewage discharging oil-contg is no more than 150mg/L).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 oleaginousness in the oil refining enterprise industrial sewage, the general employing of refinery will be refined oil the industrial sewage 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 emission standard.The de-oiling agent of present domestic use mainly contains DR-951 de-oiling agent, BS-108 de-oiling agent, BSF-1 de-oiling agent, DE-0712 de-oiling agent, but these de-oiling agents are because de-oiling rate not high enough (general de-oiling rate is about 60%) can not satisfy the requirement of each production equipment industrial sewage discharging.
Summary of the invention
The purpose of this invention is to provide the higher de-oiling agent of a kind of de-oiling rate; The present invention also provides the preparation method of this de-oiling agent simultaneously.
De-oiling agent of the present invention is that the component by following weight ratio part is composited:
Aliphatic amide polyoxyethylene polyoxypropylene ethers 30～50%;
Alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers 50-70%.
The relative molecular weight of described aliphatic amide polyoxyethylene polyoxypropylene ethers is 3000-3600
The relative molecular weight of described alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers is 3800～4200.
A kind of preparation method of de-oiling agent is that aliphatic amide polyoxyethylene polyoxypropylene ethers and alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers are directly mixed by above-mentioned weight ratio part, promptly gets de-oiling agent of the present invention.
The present invention compared with prior art has the following advantages:
1, de-oiling agent of the present invention is with high molecular, and high boiling alkylphenol-formaldehyde resin polyoxy ethers is a main raw material, is made up of a plurality of hydrophilic groups, has the affinity of irreducible water, near the small water droplets coalescence of the dispersive molecule can be caused oily water separation; Dispersive ability is strong in profit simultaneously, can touch water-oil interface quickly, and form irregular molecular film at water-oil interface, help breaking of oil-water interfacial film, thereby make water droplets coalescence, show stronger anti-emulsion and breakdown of emulsion function, so de-oiling is effective in the industrial sewage of handling refinery, the de-oiling rate can reach 75%, and the discharging oleaginousness of industrial sewage is reduced to below the 150mg/L, has guaranteed that the industry of oil refining apparatus makes the emission compliance rate more than 95%.
2, preparation of the present invention is simple, cost is low, is easy to apply.
De-oiling effect below by description of test de-oiling agent of the present invention:
Experiment 1:
The composition of de-oiling agent (by weight): aliphatic amide polyoxyethylene polyoxypropylene ether 50%, alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ether 50%.
Experimental subjects: the catalytic cracking unit industrial sewage, the oleaginousness qualification rate is 77.3% in the sewage water.
Experimental technique: take by weighing catalytic cracking unit industrial sewage 45 grams, place 50ml tool plug in vitro, add the different de-oiling agent 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 different concns de-oiling agent breakdown of emulsion de-oiling effect
As can be seen from Table 1, when de-oiling agent A was 50ppm in concentration, the de-oiling effect was better, was 69.98%.
The composition (by weight) of experiment 2, de-oiling agent: aliphatic amide polyoxyethylene polyoxypropylene ether 30%, alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ether 70%;
Experimental subjects and experimental technique are identical with experiment 1, and experimental result sees Table 2
Table 2 different concns de-oiling agent breakdown of emulsion de-oiling effect
As can be seen from Table 2, when de-oiling agent was 50ppm in concentration, the de-oiling effect was better, and the de-oiling rate reaches 74%, made the sewage discharge qualification rate of this device up to standard.
The contrast experiment 1:
The composition of de-oiling agent of the present invention (by weight): aliphatic amide polyoxyethylene polyoxypropylene ether 30%, alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ether 70%;
Contrast de-oiling agent: generally the DR-951 de-oiling agent of Shi Yonging, BS-108 de-oiling agent, BSF-1 de-oiling agent.
Experimental subjects, experimental technique and condition are the same, experimental result table 3.
The de-oiling effect of table 3 different concns and different medicaments
| De-oiling agent concentration | 0mg/L | 15mg/L | 25mg/L | 50mg/L | 75mg/L |
| De-oiling agent content de-oiling rate % of the present invention | 240.3 | 198.0 17.4 | 126.01 52.51 | 72.1 70.1 | 112.8 47.2 |
| DR-951 content de-oiling rate % | 235.1 | 200.4 14.7 | 185.3 21.2 | 179.2 23.8 | 182.6 22.5 |
| BS-108 content de-oiling rate % | 248.7 | 228.7 8.0 | 215.6 13.3 | 200.5 19.4 | 210.3 15.5 |
| BSF-1 content de-oiling rate % | 197.2 | 170.2 13.7 | 155.5 21.1 | 157.4 20.6 | 160.2 18.7 |
| DE-0712 content de-oiling rate % | 258.7 | 232.4 10.1 | 200.5 22.5 | 160.2 38.1 | 173.6 29.7 |
We can draw by table 3, and this de-oiling agent has good de-oiling effect, and concentration is when 50mg/L, the de-oiling best results, and the de-oiling rate can reach 70%, and other several like product de-oiling rates are lower.
The contrast experiment 2:
De-oiling agent RHW-3 of the present invention (A1) forms (by weight): aliphatic amide polyoxyethylene polyoxypropylene ether 80%, alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ether 20%
Experiment condition is the same, the results are shown in Table 4.
Table 4 different concns de-oiling agent RHW-3 (A1) breakdown of emulsion de-oiling effect
Contrast experiment's example 3
The composition (by weight) of de-oiling agent RHW-3 of the present invention (B1): aliphatic amide polyoxyethylene polyoxypropylene ether 40%, alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ether 60%
Experiment condition is the same, the results are shown in Table 5.
Table 5 different concns de-oiling agent RHW-3 (B1) breakdown of emulsion de-oiling effect
By table 4,5 as can be seen, de-oiling agent RHW-3 (A1) and RHW-3 (B1) de-oiling rate are lower, and reason is that effective constituent does not reach given scope among de-oiling agent RHW-3 (A1) and the RHW-3 (B1), this shows that the effective constituent in this agent is essential.
The content of each composition can be selected according to the difference that contains in the sewage by amount in the de-oiling agent of the present invention, and the de-oiling effect of de-oiling agent and its content in water have confidential relation in addition, therefore must control the add-on of medicament well.
Embodiment
The preparation of embodiment 1, de-oiling agent of the present invention
Raw material (by weight percentage):
Aliphatic amide polyoxyethylene polyoxypropylene ethers (relative molecular weight is 3000-3600) 30%
Alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers (relative molecular weight is 3800～4200) 70%
Technology: aliphatic amide polyoxyethylene polyoxypropylene ethers and alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers are directly mixed, promptly get de-oiling agent of the present invention.
The preparation of embodiment 2, de-oiling agent of the present invention:
Raw material (by weight percentage):
Aliphatic amide polyoxyethylene polyoxypropylene ethers (relative molecular weight is 3000-3600) 40%
Alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers (relative molecular weight is 3800～4200) 60%
Technology: aliphatic amide polyoxyethylene polyoxypropylene ethers and alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers are directly mixed promptly.
The preparation of embodiment 3, de-oiling agent of the present invention
Raw material (by weight percentage):
Aliphatic amide polyoxyethylene polyoxypropylene ethers (relative molecular weight is 3000-3600) 50%
Alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers (relative molecular weight is 3800～4200) 50%
Technology: aliphatic amide polyoxyethylene polyoxypropylene ethers and alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers are directly mixed promptly.
Claims (6)
1. de-oiling agent is that the component by following weight ratio part is composited:
Aliphatic amide polyoxyethylene polyoxypropylene ethers 30～50%;
Alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers 50-70%.
2. de-oiling agent as claimed in claim 1 is characterized in that: the relative molecular weight of described aliphatic amide polyoxyethylene polyoxypropylene ethers is 3000～3600.
3. de-oiling agent as claimed in claim 1 is characterized in that: the relative molecular weight of described alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers is 3800～4200.
4. the preparation method of a de-oiling agent is that 30～50% aliphatic amide polyoxyethylene polyoxypropylene ethers and 50-70% alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers are directly mixed, and promptly gets de-oiling agent of the present invention.
5. as the preparation method of de-oiling agent as described in the claim 4, it is characterized in that: the relative molecular weight of described aliphatic amide polyoxyethylene polyoxypropylene ethers is 3000～3600.
6. as the preparation method of de-oiling agent as described in the claim 4, it is characterized in that: the relative molecular weight of described alkylphenol-formaldehyde resin polyoxyethylene polyoxypropylene ethers is 3800～4200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100431756A CN100422089C (en) | 2006-07-13 | 2006-07-13 | De-oiling agent and its prepn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100431756A CN100422089C (en) | 2006-07-13 | 2006-07-13 | De-oiling agent and its prepn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1931734A CN1931734A (en) | 2007-03-21 |
| CN100422089C true CN100422089C (en) | 2008-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100431756A Active CN100422089C (en) | 2006-07-13 | 2006-07-13 | De-oiling agent and its prepn |
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|---|---|
| CN (1) | CN100422089C (en) |
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2006
- 2006-07-13 CN CNB2006100431756A patent/CN100422089C/en active Active
Non-Patent Citations (4)
| Title |
|---|
| 用多烯多胺制得的聚季铵型浮选剂及其性能. 谢飞等.油田化学，第12卷第3期. 1995 |
| 用多烯多胺制得的聚季铵型浮选剂及其性能. 谢飞等.油田化学，第12卷第3期. 1995 * |
| 阳离子聚合物浮选剂合成与评价. 崔树毅等.石油大学学报，第16卷第3期. 1992 |
| 阳离子聚合物浮选剂合成与评价. 崔树毅等.石油大学学报，第16卷第3期. 1992 * |
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| Publication number | Publication date |
|---|---|
| CN1931734A (en) | 2007-03-21 |
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Assignee: Lanzhou Globe Engineering Co., Ltd. Assignor: Lanzhou Petrochemical Co., SINOPEC Contract record no.: 2011610000045 Denomination of invention: De-oiling agent and its prepn Granted publication date: 20081001 License type: Exclusive License Open date: 20070321 Record date: 20110629 |