CN1670136A - Method for evaluating antiscale agent in petrochemical processing - Google Patents
Method for evaluating antiscale agent in petrochemical processing Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 69
- 238000012545 processing Methods 0.000 title description 4
- 238000012360 testing method Methods 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 15
- 239000002455 scale inhibitor Substances 0.000 claims description 51
- 239000002994 raw material Substances 0.000 claims description 48
- 238000011156 evaluation Methods 0.000 claims description 34
- 230000005764 inhibitory process Effects 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 11
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 6
- 238000004517 catalytic hydrocracking Methods 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 2
- 238000004523 catalytic cracking Methods 0.000 claims description 2
- 238000004939 coking Methods 0.000 claims description 2
- 238000005292 vacuum distillation Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 14
- 239000002904 solvent Substances 0.000 abstract description 10
- 238000002474 experimental method Methods 0.000 abstract 4
- 239000012459 cleaning agent Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000000203 mixture Substances 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
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- 239000007788 liquid Substances 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000001464 adherent effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000005094 computer simulation Methods 0.000 description 1
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- 230000008021 deposition Effects 0.000 description 1
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- 150000001993 dienes Chemical class 0.000 description 1
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- 239000010954 inorganic particle Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
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- 238000007670 refining Methods 0.000 description 1
- -1 scale removal Substances 0.000 description 1
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- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
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Abstract
A evaluating method for petrochemical process antisludging agent. The inventive method includes: (1) under ambient temperature, adding experiment materials in the foul collecting pipe and rise the temperature of the collecting pipe to 30~70 Deg. C, then induce the experiment materials into foul generating pipe, rising the generating pipe's temperature to 200~500Deg. C, the pressure of the whole evaluating system to 0.1~13MPa. After the experiment material circulating between foul generating pipe and foul collecting pipe for a while, stop the circulation of the material and wash the foul generating pipe and collecting pipe by hydrocarbons solvent cleaning agent, removing the solvent and drying. When it come down to the ambient temperature, measure the total weight of foul in the generating and collecting pipes. (2) adding antisludging agent in the equivalent experiment materials and measuring the total weight of foul in the generating and collecting pipes, base on the total foul generated in step (1) blank test, calculate the antisludging rate of the antisludging agent. The performance of antisludging agent can be evaluated by antisludging rate.
Description
Technical field
The present invention is a kind of evaluation method of petrochemical process process Scale inhibitors, specifically, is a kind of evaluation method that is applied to the Scale inhibitors in the petrochemical process process apparatus.
Background technology
Scale inhibitors is control commonly used in the petroleum chemical industry and the technological process chemical assistant that prevents equipment scaling, integrates that antioxygen, resistance are poly-, dispersion, scale removal, metal passivation.It can slow down the fouling obstruction of some equipment, makes the device quiet run, prolongs running period.In actual production, the certain operations temperature is higher, temperature variation big (as process furnace, interchanger) and handle the equipment that is rich in component complex feedstock such as unsaturated hydrocarbons, inorganic particles such as diolefin and be very easy to take place the fouling latch up phenomenon.Owing to adopt different technical process, operational condition and stock oil, even degree and phenomenon that the device generation fouling of same kind is stopped up are also inequality.Therefore, there is very big-difference in different application site to the performance requriements of Scale inhibitors product in different production equipment and the same set of device.
Any Scale inhibitors product all must be through strict laboratory evaluation, to prove its validity in its R﹠D process and before being applied to full scale plant.The evaluation method of existing Scale inhibitors is various informative, does not still have unified standard method, gets up to mainly contain two types of stationary method and dynamic methods but sum up.Stationary method is that several Scale inhibitorss that will estimate are added respectively in the incrustation testing tube, mix with quantitative test raw material, under static state, the incrustation testing tube is heated to design temperature and constant for some time, then, the fouling degree that relatively adds the test material of different Scale inhibitorss.Wait in " development and the application of hydroeracking unit interchanger Scale inhibitors " [Shandong petrochemical complex as Wang Wei, 1997,25 (4)] the performance of antisludging agent evaluation method of introducing in is on staticizer, utilize burnt amount method and the vacuum filtration method done, weigh scale inhibition effect according to dried burnt content in the generation oil or the spot colors weight on the suction filtration filter paper.This method evaluation procedure is easy, easy to implement, but can not simulate the flow state of material in the actual process process.
Dynamic method is that the state of raw material when actually operating of simulation adding Scale inhibitors estimated scale inhibition effect.As " development and the application of SF-2 catalytically cracked oil scale inhibitor " [refining of petroleum and chemical industry, 1995,26 (5)] introduced a kind of method of dynamic method assessment of scale inhibitor performance, this method makes the test slurry oil pass through the incrustation testing tube under flow state, and circulate the regular hour therein, under the certain condition of furnace temp, keep incrustation testing tube inlet temperature of charge and material flow constant, then, relatively add the test material testing tube exit end variation of temperature situation of different Scale inhibitorss.Its theoretical foundation is the carrying out along with test, and the dirt deposition amount on the testing tube inwall is more and more, and heat transfer coefficient is reduced gradually, causes testing tube outlet material temperature to descend, and temperature descends many more, illustrates that the incrustation amount is many more, and the performance of Scale inhibitors is poor more.Scale inhibition performance calculates by the fluid outlet temperature difference of adding Scale inhibitors and the fluid outlet temperature difference of blank test.Though the flow state of material in this method energy analoging industrial device, keep the constant of incrustation testing tube furnace temp, testing tube inlet temperature of charge and material flow but be strict with, especially in the on-test and the finish time, fluctuation is arranged slightly, just might bring than large deviation to test-results.In addition, measure scale inhibition effect, it is restricted in the application of measuring multifunctional anti-incrustation agent aspect of performance because this method is attached to the thermal conductivity that has changed testing tube on the test tube wall by the dirt that produces.
Summary of the invention
The evaluation method that the purpose of this invention is to provide the used performance of antisludging agent of a kind of petrochemical process process, this method can be simulated the operating conditions that the fouling block part easily takes place in the production equipment neatly, and can estimate the performance of multifunctional anti-incrustation agent, method is easy to implement, and data are comparatively accurate.
The evaluation method of petrochemical process process Scale inhibitors provided by the invention comprises the steps:
(1) in the dirt collection tube, adds test raw material under the room temperature, the temperature of dirt collection tube is risen to 30～70 ℃, then test raw material is introduced dirt and generated pipe, pick up counting, the temperature that simultaneously dirt is generated pipe rises to 200～500 ℃, the pressure of whole evaluation system transfers to 0.1～13MPa, treat that test raw material stops the material circulation after dirt generates for some time of circulating between pipe and the dirt collection tube, clean dirt with varsol and generate pipe and dirt collection tube, removing desolvates carries out drying, measure the dirt gross weight that generates in dirt generation pipe and the dirt collection tube after reducing to room temperature
(2) in the equivalent test raw material, add Scale inhibitors, measure dirt with the method in (1) step and generate the dirt gross weight that generates in pipe and the dirt collection tube, the dirt gross weight that generates with (1) step blank test is a benchmark, calculate the Scale inhibitors of commenting to the scale inhibition performance of used test raw material.
The inventive method can be simulated the operational condition that the fouling block part takes place the real reaction device easily neatly, the material that adds Scale inhibitors is circulated in the evaluation system of dirt generation pipe and the formation of dirt collection tube, thereby performance of antisludging agent is estimated, and easily the high molecular polymerization fouling that generates in the system is collected with the dirt collection tube, the scale inhibition performance of the weight determination Scale inhibitors by generating dirt, therefore, can be used for the evaluation of multifunctional anti-incrustation agent performance.In addition, the present invention carries out the dynamic simulation evaluation, and its result connects with the test whole process, can avoid instantaneous parameter fluctuation that evaluation result is caused excessive influence.
Description of drawings
Fig. 1 is an evaluation of scale inhibitor device synoptic diagram provided by the invention.
Embodiment
The described evaluation system of the inventive method comprises that the dirt of polyphone generates pipe and dirt collection tube each other, and recycle pump is connected in the dirt collection tube and dirt generates between the connection line of pipe bottom, and connection line is provided with by-pass valve control.By recycle pump test raw material is squeezed into dirt during evaluation and generate pipe, test raw material is circulated between dirt collection tube and dirt generation pipe, make polymeric component polymerization generation high molecular polymer easily takes place in the raw material, form dirt, this dirt flows into the dirt collection tube with raw material, the polymkeric substance of generation is trapped on the screen cloth of placing in the dirt collection tube, behind the material circulation certain hour, in the dirt collection tube, will be detained a certain amount of dirt, with this dirt solvent cleaning, remove wherein adherent raw material, after drying, promptly ponderable quantity obtains the weight that blank test generates dirt.Add Scale inhibitors in the raw material of equivalent, generate the weight of dirt after measuring the adding Scale inhibitors under the same condition, the dirt weight that generates with blank test is benchmark, calculates the scale inhibition performance of the Scale inhibitors of commenting.Quality according to scale inhibition performance numerical Evaluation performance of antisludging agent.The add-on of Scale inhibitors is every gram raw material 10～20000 micrograms, preferred 50～500 micrograms, more preferably 50～300 micrograms.
In the aforesaid method, estimate used raw material and can take from the full scale plant and the material of fouling occluding device easily to take place or simulate its composition and the specialized oil product prepared, so that under near the test conditions of actual process situation, the raw materials used dirty ability that aggregates into is estimated.In the process of the test, system pressure, dirt generate the pipe temperature and evaluation time can be adjusted flexibly according to the condition of physical simulation.As the operational condition that can simulate the catalytically cracked oil recycle system Scale inhibitors is estimated, also can be simulated hydrocracking condition the hydrogenation Scale inhibitors is estimated.
Described dirt collection tube is used for collecting the dirt that generates in the raw material working cycle, mainly be that the dirt that raw material is generated under comparatively high temps condenses under lower temperature from raw material, dirt, is stranded on the screen cloth during by the screen cloth in the dirt collection tube with raw material.The temperature of dirt collection tube should be controlled to be 30～60 ℃.Described raw material is 6～2000 milliliters/hour at the cycle rate that dirt generates in pipe and the dirt collection tube.
Raw material stops the raw material circulation after dirt generates the regular hour of circulating between pipe and the dirt collection tube, the temperature that dirt is generated pipe is reduced to 100～200 ℃, will test material and drain in the waste oil receiving flask.Generate pipe with varsol thorough washing dirt collection tube and dirt, the raw material that is present in the dirt fully is dissolved in the varsol, described varsol is selected from C
5～C
9Alkane or aromatic hydrocarbons, preferred pentane, hexane, heptane, benzene or toluene.
With the dirt that generates with the varsol washing after, need that removing desolvates carry out drying.Temperature when dirt generation pipe temperature still is controlled at washing when dry, and the temperature of dirt collection tube is heightened to the boiling point of selected varsol.Carry out drying with the whole device of inert gas purge, preferred 0.1～2.0 hour of time of drying.After the drying, the weighing dirt generates the gross weight of pipe and dirt collection tube, this weight with estimate the poor of blank pipe gross weight clean before the operation, be the weight that blank test generates dirt.
Adopt the mode of temperature programming that the temperature that dirt generates pipe is increased to prescribed value in the described method, temperature rise rate is 1～10 ℃/minute, preferred 4～8 ℃/minute.
The Scale inhibitors that suitable the inventive method is estimated mainly is the technological process auxiliary agent that is used in control commonly used in the petrochemical units such as atmospheric and vacuum distillation, catalytic cracking, hydrocracking, visbreaking, thermally splitting and coking and prevents equipment scaling.Test raw material is to take from the material of fouling block part easily to take place on the described full scale plant or simulate the oil product that its composition is prepared.
The dirt that uses in the described evaluation method generates pipe and the dirt collection tube selects for use the metal tube of inner wall smooth to make, so that it is difficult for taking place the phenomenon of sticking of polymkeric substance in process of the test, and is easy to use solvent washing.Dirt generates pipe and adopts the electric stove wire zone of heating, so that reach a high temperature.The internal diameter of dirt collection tube is bigger, is beneficial to the shelf test raw material and places filter screen.Because the temperature of its requirement is lower, can adopt the recirculated water chuck to carry out thermostatic control, by water temperature attemperation in the chuck, is beneficial to manage interior uniformity of temperature profile, and makes easy accessibility.
Further specify evaluation method of the present invention below in conjunction with Fig. 1.Accurately the weight of the dirt collection tube 3 of sky and dirt generation pipe 1 before the weighing evaluation test is accurate to 0.01 gram.A certain amount of raw material adding is equipped with in the dirt collection tube 3 of filter screen 14, and keeping recirculated water chuck 4 interior temperature is 30～70 ℃.Open valve 9,10, ON cycle pump 13 also picks up counting, connect the power supply of process furnace 2, dirt is generated pipe 1 carry out the temperature of temperature programming to regulation, heat-up rate is 1～10 ℃/minute, treat raw material in system with rate loop for some time of 6～2000 milliliters/hour, close recycle pump 13 and valve 10, reduce the temperature of process furnace 2, open valve 11 and 8, use the nitrogen of introducing by pipeline 12 that intrasystem liquid material is drained in the waste oil receiving flask 6, generate pipe 1 cooling for dirt simultaneously.When the temperature of dirt generation pipe 1 was reduced to 100～200 ℃ gradually, valve-off 11,9,8 was opened valve 7,10, starts recycle pump 13, extracts a certain amount of varsol and clean dirt generation pipe 1, dirt collection tube 3 and respective lines from solvent bottle 5.Valve-off 7 is opened valve 9, makes solvent in system's internal recycle for some time, preferred 0.1～1.0 hour of washing time.Close recycle pump 13 and valve 10, open valve 11 and 8, use the nitrogen purging system, wherein liquid material is drained in the waste collection bottle 6.Simultaneously, adjust the temperature in the recirculated water chuck 4, make it be higher than the solvent oil boiling point, so that gas used solvent volatilization in time of washing and with gas discharge system when system is purged was generally 0.1～2.0 hour time of drying.After the drying, valve-off 11,9 and 8 stops the heating to process furnace 2, recirculated water chuck 4.After the system for the treatment of reduces to room temperature, pull down dirt generation pipe 1 and dirt collection tube 3, accurately its weight of weighing is calculated and is estimated the difference that the front and back dirt generates pipe 1 and dirt collection tube 3 weight, is designated as Δ G respectively
1With Δ G
3, these two weight difference sums are considered as not adding the blank raw material of Scale inhibitors through the amount of scale buildup after the evaluation test.In waiting content of starting materials, add Scale inhibitors respectively then, under same operational condition, measure dirt and generate pipe 1 and the weight difference Δ G of dirt collection tube 3 before and after evaluation test
1' and Δ G
3', Δ G
1' and Δ G
3' sum is and adds the dirt weight that generates behind the Scale inhibitors.Calculate the scale inhibition performance of the Scale inhibitors of commenting according to following formula.
In the formula, (Δ G
3+ Δ G
1) the dirt gross weight that generates during for blank assay, (Δ G
3'+Δ G
1') for adding the dirt gross weight that generates behind the Scale inhibitors.By the numerical values recited of scale inhibition performance, can find out the quality of performance of antisludging agent intuitively, from the Scale inhibitors of several evaluations, filter out the Scale inhibitors of better performances.The inventive method also can be used for estimating the influence of Scale inhibitors dosage to its scale-inhibiting properties.
Evaluation method of the present invention also can be estimated performance of antisludging agent under certain process stage, as the evaluation to the hydroeracking unit Scale inhibitors.After concrete grammar is the evaluating apparatus installation, open valve 11, feed rare gas element and reach prescribed value until pressure in evaluation system, valve-off 11 then, test according to described assessment process again.
Further specify the present invention below by example, but the present invention is not limited to this.
Example 1
The processing condition of the simulation catalytically cracked oil recycle system are estimated the performance of slurry oil Scale inhibitors.
(1) carries out blank fouling test.
Get 350 gram catalytically cracked oils and add dirt collection tube 3, feedstock property and composition see Table 1.Carry out evaluation test by the inventive method, earlier the water temperature in the dirt collection tube 3 recirculated water chucks 4 is transferred to 60 ℃, ON cycle pump 13 is sent raw material into dirt and is generated pipe 1, pick up counting, raw material is generated between pipe 1 and the dirt collection tube 3 at dirt to circulate, solid circulating rate is 700 milliliters/hour, and the process furnace 2 that when timing begins dirt is generated outside the pipe 1 is warming up to 390 ℃ by 5 ℃/minute speed, makes raw material circulation 10 hours under this temperature and normal pressure.Close recycle pump 13 and valve 10, the temperature that dirt is generated pipe 1 is reduced to 100 ℃, in system, feed nitrogen by pipeline 12 liquid is drained into receiving flask 6, valve-off 11, open valve 7 and 10, ON cycle pump 13 is that solvent cycle washing dirt generates pipe 1 and dirt collection tube 3 and corresponding pipeline with the normal hexane in the solvent bottle 5, and washing time is 20 minutes.Close recycle pump 13 and valve 10, open valve 11 and 8, feed nitrogen by pipeline 12 liquid in the system is drained into receiving flask 6.Temperature in the recirculated water chuck is risen to 80 ℃, in system, fed nitrogen drying 1.5 hours.Stop to feed nitrogen, treat that dirt collection tube 3 and dirt generate pipe 1 and reduce to room temperature after, the dirt weight that records in the dirt collection tube is 15.80 grams, dirt generates that dirt weight is 0.81 gram in the pipe.
(2) the slurry oil Scale inhibitors is estimated.
Get the above-mentioned catalytically cracked oil of 350 grams, amount by every gram raw material 200 micrograms adds slurry oil Scale inhibitors A and B respectively, by (1) one step process the raw material that mixes Scale inhibitors is carried out the fouling evaluation test, after washing, drying, the dirt weight that records in the raw material dirt collection tube that adds Scale inhibitors A is 5.71 grams, and the dirt weight that dirt generates in the pipe is 0.21 gram.Dirt weight in the raw material dirt collection tube of adding Scale inhibitors B is 6.98 grams, and it is 0.40 gram that dirt generates the interior dirt weight of pipe.The scale inhibition performance that calculates Scale inhibitors A and B is respectively:
The scale inhibition performance of Scale inhibitors A is bigger, illustrates that its scale-inhibiting properties is better.
Example 2
The processing condition at simulation hydrocracking high pressure heat exchanger position are estimated the hydrogenation performance of antisludging agent.
(1) carries out blank test.
Get the raw material on the 350 gram hydroeracking units, feedstock property and composition see Table 1.The processing condition at simulation hydroeracking unit high pressure heat exchanger position, method by example 1 is tested, different is dirt to be generated the pipe temperature be controlled to be 350 ℃, with nitrogen system pressure is charged to 11MPa during on-test, evaluation time 8 hours, the dirt weight that records after the drying in the dirt collection tube is 2.58 grams, and it is 0.10 gram that dirt generates the interior dirt weight of pipe.
(2) the hydrogenation Scale inhibitors is estimated.
Get 350 gram above-mentioned raw materials,, under the condition identical, carry out the fouling test with blank test by the adding Scale inhibitors C of every gram raw material 100 micrograms.The dirt weight that records after the test in the dirt collection tube is 1.02 grams, and it is 0.05 gram that dirt generates the interior dirt weight of pipe.
Get that the amount by every gram raw material 200 micrograms adds Scale inhibitors C in the above-mentioned hydrocracking raw material of 350 grams, under the condition identical, carry out the fouling test with blank test.The dirt weight that records after the test in the dirt collection tube is 0.64 gram, and it is 0.01 gram that dirt generates the interior dirt weight of pipe.
Compare C
1, C
2Scale-inhibiting properties was better when as can be known, the dosage of Scale inhibitors C was 200 micrograms/gram.
Table 1
| Project | Example 1 | Example 2 |
| Density (20 ℃), gram centimeter -3 | ????0.9951 | ????0.8562 |
| Colloid, quality % | ????18.4 | ????2.5 |
| Bituminous matter, quality % | ????0.84 | ????0.25 |
| The Br valency, gram Br-100 milliliter -1 | ????22.2 | ????12.5 |
| ????IBP | ????243 | ????134 |
| ????FBI | ????619 | ????517 |
| Alkane, quality % | ????19.6 | ????28.4 |
| Mononuclear aromatics, quality % | ????3.2 | ????10.0 |
| Double ring arene, quality % | ????10.4 | ????7.7 |
| Thrcylic aromatic hydrocarbon, quality % | ????14.7 | ????3.0 |
| Fourth Ring aromatic hydrocarbons, quality % | ????20.1 | ????0.7 |
| Five rings aromatic hydrocarbons, quality % | ????1.6 | ????0.7 |
Claims (9)
1, a kind of evaluation method of petrochemical process process Scale inhibitors comprises the steps:
(1) in the dirt collection tube, adds test raw material under the room temperature, the temperature of dirt collection tube is risen to 30～70 ℃, then test raw material is introduced dirt and generated pipe, pick up counting, the temperature that simultaneously dirt is generated pipe rises to 200～500 ℃, the pressure of whole evaluation system transfers to 0.1～13MPa, treat that test raw material stops the material circulation after dirt generates for some time of circulating between pipe and the dirt collection tube, clean dirt with varsol and generate pipe and dirt collection tube, removing desolvates carries out drying, measure the dirt gross weight that generates in dirt generation pipe and the dirt collection tube after reducing to room temperature
(2) in the equivalent test raw material, add Scale inhibitors, measure dirt with the method in (1) step and generate the dirt gross weight that generates in pipe and the dirt collection tube, the dirt gross weight that generates with (1) step blank test is a benchmark, calculate the Scale inhibitors of commenting to the scale inhibition performance of used test raw material.
2, in accordance with the method for claim 1, the temperature that it is characterized in that controlling material circulation and washing stage dirt collection tube is 30～60 ℃.
3, in accordance with the method for claim 1, it is characterized in that adopting the mode of temperature programming that the temperature that dirt generates pipe is raise, temperature rise rate is 1～10 ℃/minute.
4, in accordance with the method for claim 1, the temperature that it is characterized in that controlling washing and drying stage dirt generation pipe is 100～200 ℃, and the temperature of drying stage dirt collection tube is higher than the boiling point that washs used varsol.
5, in accordance with the method for claim 1, it is characterized in that described varsol is selected from C
5～C
9Alkane or aromatic hydrocarbons.
6, in accordance with the method for claim 1, it is characterized in that the cycle rate of raw material in dirt collection tube and dirt generation pipe is 6～2000 milliliters/hour.
7, in accordance with the method for claim 1, it is characterized in that the scale inhibition dosage that adds is every gram raw material 10～20000 micrograms.
8, in accordance with the method for claim 1, it is characterized in that described evaluation system comprises that the dirt of polyphone generates pipe and dirt collection tube each other, recycle pump is connected in the dirt collection tube and dirt generates between the connection line of pipe bottom.
9, in accordance with the method for claim 1, it is characterized in that described Scale inhibitors is atmospheric and vacuum distillation, catalytic cracking, hydrocracking, visbreaking, thermally splitting or coking process process auxiliary agent.
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| CN102156082A (en) * | 2011-01-27 | 2011-08-17 | 洛阳康润石油化工科技开发有限公司 | Evaluation method of oil-soluble scale inhibitor and tester |
| CN104071904A (en) * | 2013-03-28 | 2014-10-01 | 中国科学院沈阳应用生态研究所 | Device for evaluating anticorrosion and scale preventing performance of anticorrosion and scale-preventing agent on oilfield produced water recycle pipe network |
| CN104316647A (en) * | 2014-10-11 | 2015-01-28 | 中国石油天然气股份有限公司 | Testing device and method for simulating scaling |
| CN104698124A (en) * | 2013-12-06 | 2015-06-10 | 中国石油天然气股份有限公司 | A dynamic scale inhibition rate tester |
| CN107727525A (en) * | 2016-08-12 | 2018-02-23 | 中国石油天然气股份有限公司 | The Reliable Evaluating Methods of Their Performance of anti-coking agent |
| CN108071381A (en) * | 2017-11-14 | 2018-05-25 | 北京迪威尔石油天然气技术开发有限公司 | A kind of fouling simulator and method |
| CN108801837A (en) * | 2017-07-26 | 2018-11-13 | 上海丰信环保科技有限公司 | A kind of method of reverse osmosis antisludging agent resistance calcium carbonate performance test |
-
2004
- 2004-03-15 CN CN 200410008710 patent/CN1276965C/en not_active Expired - Lifetime
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| CN102147346A (en) * | 2011-01-20 | 2011-08-10 | 山东力诺瑞特新能源有限公司 | Method for testing anti-scaling rate of anti-scaling device of solar heater |
| CN102156082A (en) * | 2011-01-27 | 2011-08-17 | 洛阳康润石油化工科技开发有限公司 | Evaluation method of oil-soluble scale inhibitor and tester |
| CN104071904A (en) * | 2013-03-28 | 2014-10-01 | 中国科学院沈阳应用生态研究所 | Device for evaluating anticorrosion and scale preventing performance of anticorrosion and scale-preventing agent on oilfield produced water recycle pipe network |
| CN104698124A (en) * | 2013-12-06 | 2015-06-10 | 中国石油天然气股份有限公司 | A dynamic scale inhibition rate tester |
| CN104316647A (en) * | 2014-10-11 | 2015-01-28 | 中国石油天然气股份有限公司 | Testing device and method for simulating scaling |
| CN104316647B (en) * | 2014-10-11 | 2016-04-06 | 中国石油天然气股份有限公司 | For simulating the test unit of fouling |
| CN107727525A (en) * | 2016-08-12 | 2018-02-23 | 中国石油天然气股份有限公司 | The Reliable Evaluating Methods of Their Performance of anti-coking agent |
| CN108801837A (en) * | 2017-07-26 | 2018-11-13 | 上海丰信环保科技有限公司 | A kind of method of reverse osmosis antisludging agent resistance calcium carbonate performance test |
| CN108071381A (en) * | 2017-11-14 | 2018-05-25 | 北京迪威尔石油天然气技术开发有限公司 | A kind of fouling simulator and method |
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