CN102191079A - Emulsified crude oil treating agent - Google Patents
Emulsified crude oil treating agent Download PDFInfo
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- CN102191079A CN102191079A CN2011100896720A CN201110089672A CN102191079A CN 102191079 A CN102191079 A CN 102191079A CN 2011100896720 A CN2011100896720 A CN 2011100896720A CN 201110089672 A CN201110089672 A CN 201110089672A CN 102191079 A CN102191079 A CN 102191079A
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- crude oil
- emulsified crude
- treatment agent
- treating agent
- oil treatment
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to an emulsified crude oil treating agent and belongs to the technical field of petroleum processing. The emulsified crude oil treating agent is characterized in that the treating agent comprises the following components by weight percent: 5-20% of alkylpolyethenoxy ether carboxylate and 80-95% of ethylenediamine. The emulsified crude oil treating agent has the advantages of simple components, rapidness, high efficiency, low cost, low dosage, high demulsifying efficiency, wide application range, good anticorrosive effect, effective protection effect of gathering production facilities and the like, and is convenient to prepare.
Description
Technical field
The invention belongs to the Petroleum Processing Technology field, particularly relate to a kind of emulsified crude oil treatment agent.
Background technology
Be accompanied by the output of water in the Oil extraction process, exist with the form of water-in-oil or oil-in-water emulsion.Crude oil water containing increases the load of accumulating and processing units on the one hand, increases energy consumption; On the other hand, moisture dissolved CO in the crude oil
2, H
2S and salt cause corrosion to pipeline, equipment and tank capacity, cause facility to lose efficacy.Water-oil emulsion is difficult to finish oily water separation by settling methods merely and handles, and adopts auxiliary agent to handle and makes oily water separation can reach the purpose of dehydration.
At present, normally used breakdown of emulsion auxiliary agent mainly contains AR36, AP211, SP169, JX01 etc., but has problems such as application surface is narrow, breakdown of emulsion efficient is low, usage quantity is big.
Summary of the invention
The present invention provides a kind of emulsified crude oil treatment agent for solving the technical problem that exists in the known technology.
The emulsified crude oil treatment agent that the purpose of this invention is to provide characteristics such as a kind ofly having that component is simple, preparation is efficient easily and fast, with low cost, wide application, breakdown of emulsion efficient height, usage quantity are little.
The technical scheme that emulsified crude oil treatment agent of the present invention is taked for the technical problem that exists in the solution known technology is:
A kind of emulsified crude oil treatment agent is characterized in: the weight percent of emulsified crude oil treatment agent consists of, alkyl polyoxyethylene ether carboxylate salt 5-20%, quadrol 80-95%.
Emulsified crude oil treatment agent of the present invention can also adopt following technical scheme:
Described emulsified crude oil treatment agent is characterized in: the structural formula of alkyl polyoxyethylene ether carboxylate salt is RO (CH
2CH
2O)
nCH
2COOM, wherein R is the alkyl of chain length 1-12, and M is basic metal or ammonium, and n is the integer of 1-10.
Described emulsified crude oil treatment agent is characterized in: the emulsified crude oil treatment agent adopts the mode of mechanically mixing alkyl polyoxyethylene ether carboxylate salt and quadrol to make.
Advantage and positively effect that the present invention has are:
The emulsified crude oil treatment agent compared with prior art, has following characteristics owing to adopted brand-new technology scheme of the present invention:
1, the emulsified crude oil treatment agent can be dissolved in the emulsified crude oil fast as a kind of dispersion agent.
2, the emulsified crude oil treatment agent can lower the activity of water-oil interface as a kind of tensio-active agent, reduces interfacial tension.
3, the emulsified crude oil treatment agent is as a kind of flocculation agent, and the collision of accelerating emulsion droplets is broken the interface.
4, the emulsified crude oil treatment agent is a kind of coalescing agent, and little water droplet is agglomerated into big water droplet immediately can to make the emulsification interface break afterwards.
5, emulsified crude oil treatment agent dehydrating effect is good, and dehydration rate can reach 95%.
6, the emulsified crude oil treatment agent can lower the defeated facility corrosion of emulsified crude oil treatment facility and collection injury as a kind of inhibiter.
Embodiment
For further understanding technology contents of the present invention, characteristics and effect, lift following examples now:
Embodiment 1
Emulsified crude oil treatment agent DI-1(A) preparation and application
Set of dispense is than (by weight): (structural formula is C to dodecyl Soxylat A 25-7 carboxylic acid ammonium
12H
25O (CH
2CH
2O)
10CH
2COONH
4): 5%, (structural formula is NH to quadrol
2CH
2CH
2NH
2): 95%.
Preparation method: evenly make by the formula ratio mechanically mixing
Experimental subjects: the emulsified crude oil of water content 30%
Experimental technique: measure the 100mL emulsified crude oil, place in 50 ℃ of water-bath constant temperature 0.5h, add the different treatment agent of concentration and leave standstill, record dehydration rate (spectrophotometer measurement) and the results are shown in Table 1.
The breaking emulsion and dewatering effect (dehydration rate %) of table 1 different concns treatment agent
| Concentration (mg/L) | 1min | 5min | 10min | 30min |
| 25 | 43 | 59 | 70 | 77 |
| 50 | 45 | 64 | 77 | 82 |
| 100 | 47 | 75 | 90 | 95 |
| 150 | 47 | 73 | 89 | 94 |
As can be seen from Table 1, DI-1(A) when concentration was 100mg/L, dehydrating effect was best, and the 10min dehydration rate is 90%, and the 30min dehydration rate reaches 95%.
Embodiment 2
Emulsified crude oil treatment agent DI-1(B) preparation and application
Set of dispense is than (by weight): (structural formula is C to normal-butyl Soxylat A 25-7 carboxylic acid sodium
4H
9O (CH
2CH
2O)
5CH
2COONa): 15%, (structural formula is NH to quadrol
2CH
2CH
2NH
2): 85%.
Emulsified crude oil treatment agent DI-1(B) preparation method, experimental subjects and experimental technique are identical with experiment 1, and experimental result sees Table 2.
The breaking emulsion and dewatering effect (dehydration rate %) of table 2 different concns treatment agent
| Concentration (mg/L) | 1min | 5min | 10min | 30min |
| 25 | 38 | 58 | 71 | 79 |
| 50 | 44 | 64 | 83 | 87 |
| 100 | 53 | 79 | 89 | 94 |
| 150 | 55 | 77 | 88 | 92 |
As can be seen from Table 2, DI-1(B) when concentration was 100mg/L, dehydrating effect was best, and the 10min dehydration rate is 89%, and the 30min dehydration rate reaches 94%.
Embodiment 3
Emulsified crude oil treatment agent DI-1(A) to the treatment effect of different moisture content emulsified crude oil
Set of dispense is than (by weight): (structural formula is C to dodecyl Soxylat A 25-7 carboxylic acid ammonium
12H
25O (CH
2CH
2O)
10CH
2COONH
4): 5%, (structural formula is NH to quadrol
2CH
2CH
2NH
2): 95%.
Preparation method: evenly make by the formula ratio mechanically mixing
Experimental subjects: water content is respectively 30%, 50% and 70% emulsified crude oil
Experimental technique: measure the 100mL emulsified crude oil, place in 50 ℃ of water-bath constant temperature 0.5h, adding concentration is that the treatment agent of 100 mg/L leaves standstill, and records dehydration rate (spectrophotometer measurement) and the results are shown in Table 3.
Table 3 DI-1(A) to the treatment effect (dehydration rate %) of different moisture content emulsified crude oil
| The emulsified coarse-oil contained water amount | 1min | 5min | 10min | 30min |
| 30% | 47 | 75 | 90 | 95 |
| 50% | 44 | 72 | 88 | 94 |
| 70% | 40 | 69 | 85 | 92 |
As can be seen from Table 3, concentration is the DI-1(A of 100mg/L), the emulsified crude oil of different moisture content is all wanted good dehydrating effect, the 10min dehydration rate is more than 85, the 30min dehydration rate reaches more than 90%.
The comparative example 1:
Emulsified crude oil treatment agent DI-1 of the present invention (A1) set of dispense ratio is (by weight): (structural formula is C to dodecyl Soxylat A 25-7 carboxylic acid ammonium
12H
25O (CH
2CH
2O)
10CH
2COONH
4): 30%, (structural formula is NH to quadrol
2CH
2CH
2NH
2): 70%.
Preparation and experiment condition such as embodiment 1 the results are shown in Table 4.
The breaking emulsion and dewatering effect (dehydration rate %) of table 4 different concns treatment agent
| Concentration (mg/L) | 1min | 5min | 10min | 30min |
| 25 | 21 | 43 | 59 | 67 |
| 50 | 26 | 48 | 65 | 72 |
| 100 | 34 | 50 | 75 | 79 |
| 150 | 39 | 49 | 72 | 78 |
The comparative example 2
Emulsified crude oil treatment agent DI-1 of the present invention (B1) set of dispense is than being (by weight): normal-butyl Soxylat A 25-7 carboxylic acid sodium: 2%, and (structural formula is NH to quadrol
2CH
2CH
2NH
2): 98%.
Preparation and experiment condition as above the results are shown in Table 5.
The breaking emulsion and dewatering effect (dehydration rate %) of table 5 different concns treatment agent
| Concentration (mg/L) | 1min | 5min | 10min | 30min |
| 25 | 22 | 42 | 58 | 62 |
| 50 | 27 | 49 | 67 | 70 |
| 100 | 38 | 57 | 72 | 76 |
| 150 | 35 | 54 | 75 | 78 |
By table 4,5 as can be seen, the dehydration rate of emulsified crude oil treatment agent DI-1 (A1) and DI-1 (B1) is on the low side, do not reach the high dehydrating effect more than 90%, reason is that effective constituent does not reach given scope among emulsified crude oil treatment agent DI-1 (A1) and the DI-1 (B1), this shows the importance of effective constituent proportioning in this agent.
Each composition can be selected according to profit content in the emulsified crude oil is different in the emulsified crude oil treatment agent of the present invention, and dehydrating effect and add-on are also closely related simultaneously, need control adding dosage well.
The comparative example 3
The composition (by weight) of emulsified crude oil treatment agent DI-1 of the present invention (A): (structural formula is C to dodecyl Soxylat A 25-7 carboxylic acid ammonium
12H
25O (CH
2CH
2O)
10CH
2COONH
4): 5%, (structural formula is NH to quadrol
2CH
2CH
2NH
2): 95%.
Contrast treatment agent: the generally DR-951 of Shi Yonging, BS-108, BSF-1 and DE-0172.
Experimental subjects, test method and condition the same (time is 10min), experimental result sees Table 6.
The breaking emulsion and dewatering effect (dehydration rate %) of table 6 different concns and different treatment agent
| Treatment agent concentration | 25mg/L | 50mg/L | 100mg/L |
| DI-1 (A) dehydration rate % | 70 | 77 | 90 |
| DR-951 dehydration rate % | 65 | 70 | 72 |
| BS-108 dehydration rate % | 62 | 67 | 70 |
| BSF-1 dehydration rate % | 60 | 64 | 69 |
| DE-0172 dehydration rate % | 65 | 69 | 71 |
Can be drawn by table 6, this emulsified crude oil treatment agent has dehydrating effect efficiently, and concentration is at 100mg/L, and 10min can reach 90%, and other several like product dehydrating effects is relatively poor, only about 70% under the treatment time.
The comparative example 4
The composition (by weight) of emulsified crude oil treatment agent DI-1 of the present invention (A): (structural formula is C to dodecyl Soxylat A 25-7 carboxylic acid ammonium
12H
25O (CH
2CH
2O)
10CH
2COONH
4): 5%, (structural formula is NH to quadrol
2CH
2CH
2NH
2): 95%.
Contrast treatment agent: the generally DR-951 of Shi Yonging, BS-108, BSF-1 and DE-0172.
Experimental subjects: the emulsified crude oil of water content 30%
Test method: measure 1L emulsified crude oil and 100mg treatment agent, corrosion coupon is placed in the autoclave, fastening airtight back feeds 900ppm hydrogen sulfide and 40% carbon dioxide in still, and experimental period is 72h.Take out lacing film weighing weight loss after experiment is finished, calculate erosion rate, experimental result sees Table 7.
The corrosion mitigating effect of table 7 different treatment agent
| Treatment agent | Erosion rate mpy |
| DI-1(A) | 1 |
| DR-951 | 10 |
| BS-108 | 15 |
| BSF-1 | 13 |
| DE-0172 | 17 |
Can be drawn by table 7, this emulsified crude oil treatment agent has good corrosion mitigating effect, in abominable oil gas corrosive medium environment, to corrosive inhibition degree than the high order of magnitude of other several like products.
Claims (3)
1. emulsified crude oil treatment agent, it is characterized in that: the weight percent of emulsified crude oil treatment agent consists of, alkyl polyoxyethylene ether carboxylate salt 5-20%, quadrol 80-95%.
2. according to the described emulsified crude oil treatment agent of claim 1, it is characterized in that: the structural formula of alkyl polyoxyethylene ether carboxylate salt is RO (CH
2CH
2O)
nCH
2COOM, wherein R is the alkyl of chain length 1-12, and M is basic metal or ammonium, and n is the integer of 1-10.
3. according to claim 1 or 2 described emulsified crude oil treatment agents, it is characterized in that: the emulsified crude oil treatment agent adopts the mode of mechanically mixing alkyl polyoxyethylene ether carboxylate salt and quadrol to make.
Priority Applications (1)
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|---|---|---|---|
| CN2011100896720A CN102191079A (en) | 2011-04-11 | 2011-04-11 | Emulsified crude oil treating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100896720A CN102191079A (en) | 2011-04-11 | 2011-04-11 | Emulsified crude oil treating agent |
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|---|---|
| CN102191079A true CN102191079A (en) | 2011-09-21 |
Family
ID=44599965
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280049A (en) * | 2019-07-18 | 2019-09-27 | 厦门凯诚通机械设备有限公司 | A kind of high oily liquid waste processing breaks solvent and its application method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1504529A (en) * | 2002-11-29 | 2004-06-16 | 中国石油化工股份有限公司 | Reducing viscosity agent by emulsification for thick oil and application method thereof |
| CN1778862A (en) * | 2004-11-17 | 2006-05-31 | 中国石油化工股份有限公司 | Inspissated oil emulsion viscidity reducer |
-
2011
- 2011-04-11 CN CN2011100896720A patent/CN102191079A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1504529A (en) * | 2002-11-29 | 2004-06-16 | 中国石油化工股份有限公司 | Reducing viscosity agent by emulsification for thick oil and application method thereof |
| CN1778862A (en) * | 2004-11-17 | 2006-05-31 | 中国石油化工股份有限公司 | Inspissated oil emulsion viscidity reducer |
Non-Patent Citations (4)
| Title |
|---|
| 《大庆石油学院学报》 20021231 曹晓春等 "原油破乳剂的研制现状及应用" 第34-38页 1-3 第26卷, 第4期 * |
| 《日用化学品科学》 20000731 王伟等 "系列醇醚羧酸盐的合成及性能研究" 第81-83页 1-3 第23卷, * |
| 曹晓春等: ""原油破乳剂的研制现状及应用"", 《大庆石油学院学报》 * |
| 王伟等: ""系列醇醚羧酸盐的合成及性能研究"", 《日用化学品科学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280049A (en) * | 2019-07-18 | 2019-09-27 | 厦门凯诚通机械设备有限公司 | A kind of high oily liquid waste processing breaks solvent and its application method |
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Application publication date: 20110921 |