CN103808612A - Method for evaluating descaling performance of surfactant - Google Patents
Method for evaluating descaling performance of surfactant Download PDFInfo
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- CN103808612A CN103808612A CN201210484131.2A CN201210484131A CN103808612A CN 103808612 A CN103808612 A CN 103808612A CN 201210484131 A CN201210484131 A CN 201210484131A CN 103808612 A CN103808612 A CN 103808612A
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Abstract
The invention discloses a method for evaluating a descaling performance of a surfactant. The method comprises the following steps: (a) selecting experiment containers, and cleaning and drying for later use; (b) respectively adding equivalent OP-10, Tween-80 and Span 80 into the experiment containers; (c) adding distilled water into the experiment containers, and stirring until the equivalent OP-10, the Tween-80 and the Span 80 are fully dissolved; (d) respectively and slowly dripping the prepared NaOH, and regulating the pH value; (e) raising the temperature by a water bath kettle, respectively adding barium sulfate scale, and reacting for a period of time; (f) performing suction filtration after the reaction is ended, drying, weighing, and recording related reaction phenomena and data; and (g) analyzing the related data and reaction phenomena, so as to obtain the descaling performance of the surfactant. According to the method, the descaling performance of the surfactant can be rapidly evaluated, the result is accurate, the evaluation time is short, and the evaluation cost is reduced.
Description
Technical field
The present invention relates to a kind of surfactant scale removal method of evaluating performance.
Background technology
Scale remover is a kind of incrustation scale of removing, and the chemicals of the multiple dirt stain such as dirt, generally forms by various ingredients is composite.Industrial scale remover is mainly used in removing heat transmission equipment, the dirt in boiler etc.
The conventional kind of scale remover and feature thereof:
(1) inorganic polyphosphate.This type of is the scale remover using the earliest, has limited use abroad.In its molecule, there is the P-O-P key of one or more repetitions to exist, can be divided into chain Quadrafos and cyclic polyphosphates.The shortcoming of inorganic polyphosphate is that moisture-sensitive hydrolysis generates orthophosphate, under high temperature and high pH value, more so, reacts and fouling as Ca2+, Mg2+ etc. with bivalent cation.
(2) organophosphate.The machine phosphate of common are has monoalkyl phosphoric acid esters, bisalkyl phosphate, pyrophosphate, polyoxyethylene aliphatic ether phosphate etc.In organophosphate, P-O-C key is stronger than phosphate P-O-P key, and therefore it is than phosphate-stabilized, and hydrolysis temperature is higher than phosphate.Seemingly, when use, consumption is unsuitable too high for the much character of phosphate and phosphoric acid salt, the too high dirt that easily generates on the contrary.Phosphate easily adheres to equipment surface, good with the compatibility of corrosion inhibiter etc., but easily there is emulsification with oils, so need to add non-emulsifier while use in oil field, hydrolysis phenomenon that can be resemble inorganic polyphosphate in the time that temperature exceedes 90 ℃, its hydrolysate also can react and fouling with divalent metal.Strontium sulfate white crystalline powder.Odorlessness.1g is dissolved in about 8800ml water, 700ml 3% nitric acid, 800ml 2% hydrochloric acid, is slightly soluble in alkali chloride solution, concentrated acid, is insoluble to ethanol and dilute sulfuric acid.Relative density 3.96.1605 ℃ of fusing points.Index of refraction 1.624.
(3) organic multicomponent phosphonic acids.C-P key in phosphonic acids is firm, therefore has higher chemical stability and thermal stability, also difficult hydrolysis under high temperature, high pH value condition, nontoxic or low toxicity.For example ethylenediamine tetraacetic methene phosphoric acid still can keep its activity under the high temperature of 200 ℃ and 1013kPa; Carboxyl ethylene-diphosphonic acid just decomposes under the high temperature of 250 ℃.Such scale remover is effective, and dosing is little, and has corrosion inhibition concurrently.Be widely used in oil field water treatment.
(4) aminopolycanboxylic acid's salt.Aminopolycanboxylic acid's salt is a kind of scale remover of better heat stability, as the serviceability temperature of EDTA can reach 200 ℃.This type of scale remover is mainly that the amount therefore adding is many by huge legendary turtle cooperation antiscale, and cost is high, so use and be restricted in the industrial process of a large amount of waters.
21 century China's surfactant and detergent industry Challenge, also exist opportunity simultaneously.In China, surfactant is most of for detergent industry, but abroad, accounts for 40% left and right for industrial surfactant.For example, nineteen ninety-five West Europe industrial surfactant consumption figure be approximately 900kt, account for 43% of total surfactant consumption figure.This shows that the application of surfactant in industry also has very large development space.So, adjustment form surface-active agent product structure, exploitation surfactant new product is extremely important.
Oil is industrial " blood ", is the lifeblood of the national economic development.Petroleum Production can be divided into defeated 3 processes of drilling well, oil recovery and collection.In these production runes, often solve with surfactant the problem existing, need to use a large amount of surfactants for this reason, surfactant, in the widespread use in oil field, has utilized its special physicochemical property just.Its pressure break in oil field, adjust stifled, drilling well, the displacement of reservoir oil etc. to obtain application aspect many.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of surfactant scale removal method of evaluating performance is provided, this surfactant scale removal method of evaluating performance can complete the evaluation of Surfactant scale removal performance fast, and result is accurate, evaluation time is short, has reduced evaluation cost.
Object of the present invention is achieved through the following technical solutions: a kind of surfactant scale removal method of evaluating performance, comprises the following steps:
(a) choose experiment container, and cleaning-drying is for subsequent use;
(b) respectively to the OP-10 that adds respectively equivalent in experiment container, Tween 80 and Si Ban 80;
(c) in experiment container, add distilled water again, stir it is fully dissolved;
(d) NaOH that then slowly dropping has configured respectively, regulates pH value;
(e) water-bath temperature heats up, and adds respectively barium sulfate scale, reaction a period of time;
(f) after completion of the reaction, carry out suction filtration, dry, weigh, record relevant reacting phenomenon and data;
(g) analyze related data and reacting phenomenon, thereby draw the scale removal performance of surfactant.
Described experiment container is conical flask.
In described step (b), OP-10, the addition of Tween 80 and Si Ban 80 is 0.5000g.
In described step (c), the addition of distilled water is 100ml.
In described step (d), regulate pH value to 12.
In described step (e), bath temperature is 60 ℃, and the water-bath time is 24h.
In sum, the invention has the beneficial effects as follows: can complete fast the evaluation of Surfactant scale removal performance, and result is accurate, evaluation time is short, has reduced evaluation cost.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment:
A kind of surfactant scale removal method of evaluating performance the present invention relates to, comprises the following steps:
(a) choose experiment container, and cleaning-drying is for subsequent use;
(b) respectively to the OP-10 that adds respectively equivalent in experiment container, Tween 80 and Si Ban 80;
(c) in experiment container, add distilled water again, stir it is fully dissolved;
(d) NaOH that then slowly dropping has configured respectively, regulates pH value;
(e) water-bath temperature heats up, and adds respectively barium sulfate scale, reaction a period of time;
(f) after completion of the reaction, carry out suction filtration, dry, weigh, record relevant reacting phenomenon and data;
(g) analyze related data and reacting phenomenon, thereby draw the scale removal performance of surfactant.
Described experiment container is conical flask.
In described step (b), OP-10, the addition of Tween 80 and Si Ban 80 is 0.5000g.
In described step (c), the addition of distilled water is 100ml.
In described step (d), regulate pH value to 12.
In described step (e), bath temperature is 60 ℃, and the water-bath time is 24h.
The experimental data being drawn by above-mentioned steps is as shown in the table:
In experimentation, in the time that OP-10 scale removal is evaluated,, there are some foams in bottle in shake bottle 1, and solution presents milky, after reaction 24h, very smooth when suction filtration, after suction filtration finishes, is some bulky grain barium sulfate scales on filter paper; In the time that Tween 80 scale removal is evaluated, shake bottle 2, only has a small amount of foam in bottle, and solution presents milky, after reaction 24h, more difficult when suction filtration, after suction filtration finishes, is some bulky grain dirts on filter paper; In the time that 80 scale removal of class of department are evaluated,, there are some foams in bottle in shake bottle 3, and solution presents milky, in bottle, has a small amount of floating grease, after reaction 24h, more difficult when suction filtration, after suction filtration finishes, is some bulky grain dirts on filter paper.
As seen from the above table: Tween 80 is poor to the removing effect of barium sulfate scale, and the effect of OP-10 and Si Ban 80 or relatively good.When department class 80 scale removal, suction filtration difficulty, explanation department class 80 pairs of barium sulfate scale bulky grains have played dispersion flocculation, thereby have stopped up middling speed quantitative filter paper.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction, every foundation technical spirit of the present invention, and any simple modification, equivalent variations that above embodiment is done, within all falling into protection scope of the present invention.
Claims (6)
1. surfactant scale removal method of evaluating performance, is characterized in that, comprises the following steps:
(a) choose experiment container, and cleaning-drying is for subsequent use;
(b) respectively to the OP-10 that adds respectively equivalent in experiment container, Tween 80 and Si Ban 80;
(c) in experiment container, add distilled water again, stir it is fully dissolved;
(d) NaOH that then slowly dropping has configured respectively, regulates pH value;
(e) water-bath temperature heats up, and adds respectively barium sulfate scale, reaction a period of time;
(f) after completion of the reaction, carry out suction filtration, dry, weigh, record relevant reacting phenomenon and data;
(g) analyze related data and reacting phenomenon, thereby draw the scale removal performance of surfactant.
2. surfactant scale removal method of evaluating performance according to claim 1, is characterized in that, described experiment container is conical flask.
3. surfactant scale removal method of evaluating performance according to claim 2, is characterized in that, in described step (b), and OP-10, the addition of Tween 80 and Si Ban 80 is 0.5000g.
4. surfactant scale removal method of evaluating performance according to claim 1, is characterized in that, in described step (c), the addition of distilled water is 100ml.
5. surfactant scale removal method of evaluating performance according to claim 1, is characterized in that, in described step (d), regulates pH value to 12.
6. surfactant scale removal method of evaluating performance according to claim 1, is characterized in that, in described step (e), bath temperature is 60 ℃, and the water-bath time is 24h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210484131.2A CN103808612A (en) | 2012-11-13 | 2012-11-13 | Method for evaluating descaling performance of surfactant |
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| CN201210484131.2A CN103808612A (en) | 2012-11-13 | 2012-11-13 | Method for evaluating descaling performance of surfactant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706465A (en) * | 2015-11-17 | 2017-05-24 | 中国石油天然气股份有限公司 | Sulfur dissolving agent evaluation device and method using same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706465A (en) * | 2015-11-17 | 2017-05-24 | 中国石油天然气股份有限公司 | Sulfur dissolving agent evaluation device and method using same |
| CN106706465B (en) * | 2015-11-17 | 2019-07-05 | 中国石油天然气股份有限公司 | Molten sulphur agent evaluating apparatus and the method for using it |
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Application publication date: 20140521 |