CN1807557A - Composite oil-soluble demulsifier product and its production method - Google Patents
Composite oil-soluble demulsifier product and its production method Download PDFInfo
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- CN1807557A CN1807557A CN 200610037741 CN200610037741A CN1807557A CN 1807557 A CN1807557 A CN 1807557A CN 200610037741 CN200610037741 CN 200610037741 CN 200610037741 A CN200610037741 A CN 200610037741A CN 1807557 A CN1807557 A CN 1807557A
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Abstract
This invention provides a kind of composite oil-soluble demulsifier and its preparing method. The composite oil-soluble demulsifier is composed by mixed solvent and functional demulsifier. The mixed solvent is made of one or several kinds of organic solvents in dimethylbenzene, methanol, isopropanol, solvent oil, dimethyl carbonate, while the functional demulsifier is made of non-ionic surfactant. The mass percent of the mixed solvent is 30-70 while that of the functional demulsifier is 70-30. The composite process is proceeded in agitated still which has heat-insulating cover, and controlled conditions are as follows: composite mixing temperature 20-80 deg C; agitating speed 30-150r/min; agitating time 20-60min plugging temperature30-40deg C.
Description
Technical field
The present invention relates to the dehydration or the deemulsification of hydrocarbon ils, be meant composite oil-soluble demulsifier product and the production method thereof used in a kind of breaking emulsion and dewatering, the demineralising process especially at oil field and refinery's crude oil emulsion.
Background technology
Chinese patent CN1600835A, CN1618835A, CN1544117, CN1631483A, CN1485410A etc. have introduced the synthesis preparation method of multiple emulsion splitter molecular structure and different structure emulsion splitter in a large number; The patent of invention that many relevant emulsion splitter kinds are also arranged.But these patents have all been overemphasized the effect of differing molecular functional structure in crude oil emulsion breakdown of emulsion process, because the diversity of oil variety, type, the complicacy of crude oil emulsion has determined that emulsion splitter has very strong specific aim in application process, causes single type emulsion splitter adaptability relatively poor.And the water-soluble demulsifier of domestic a large amount of uses at present is in oil field and refinery's crude oil desalting, dewatering process process, and the overwhelming majority is with the water body discharging, and is not only very big to environmental hazard, and causes serious waste.The domestic existing oil-soluble demulsifier of using, mostly at synthetic emulsion splitter stage adding organic solvent, it is composite seldom to carry out secondary, thereby has limited the raw material of a lot of water-soluble demulsifier molecules as oil-soluble demulsifier.
Summary of the invention
Technical problem to be solved by this invention just is to overcome the defective of existing demulsifier product and production method thereof, provide a kind of employing mixed solvent component as dispersion medium, carry out composite composite oil-soluble demulsifier product of secondary and production method thereof with more than one function emulsion splitter.Composite oil-soluble demulsifier of the present invention is made up of mixed solvent and function emulsion splitter, mixed solvent adopts a kind of in the organic solvents such as dimethylbenzene, methyl alcohol, Virahol, solvent oil, methylcarbonate or several, the function emulsion splitter mainly adopts the nonionic type tensio-active agent, wherein mixed solvent constituent mass per-cent proportioning is 30-70%, and function emulsion splitter constituent mass per-cent proportioning is 70-30%; Complex process carries out in the stirring tank that has the chuck insulation, and control condition is: composite mixing temperature 20-80 ℃, and mixing speed 30-150r/min, churning time 20-60min, 30-40 ℃ of blowing temperature.Each organic solvent mass percent proportioning is dimethylbenzene 10-30%, methyl alcohol 0-30%, Virahol 0-30%, methylcarbonate 0-20% in the mixed solvent that uses, and function emulsion splitter mass percent proportioning is alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether 15-55%, polyoxyethylene polyoxypropylene propylene glycol 5-25%; And alkyl benzene sulphonate (ABS) 0.5-5%; The polyoxyethylene polyoxypropylene propylene glycol can also substitute with its modified product.Each organic solvent mass percent proportioning can also be dimethylbenzene 15-55%, solvent oil 15-55% in the mixed solvent that uses.The mixed solvent organic solvent can also adopt a kind of of benzene, toluene, ethanol, propyl carbinol, acetate and other ketone, ether, esters solvent etc. or several.Organic solvent all adopts the commercial size solvent, and concrete specification requirement is as follows:
Dimethylbenzene technical grade purity 99.5%;
Methyl alcohol premium grads, acceptable end product purity 99.5%;
Virahol purity 99.5%;
Methylcarbonate purity 99.5%;
Solvent oil technical grade 120-260
#(Jinling Petrochemical Co.).
The function emulsion splitter also comprises nonionic surface active agent AP, AE class polyethylene amine polyethers, phenol-amine resin polyethers, acrylic acid modified polyethers, poly phosphate class, siliceous class polyethers of other classes etc.Can also select the tensio-active agent of anionic part, cation type or amphoteric type for use.The general function emulsion splitter that uses commercial size, concrete specification requirement is as follows:
(1) alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether
Molecular-weight average 3000-10000, solid content is greater than 80%;
Molecular structural formula is
M=10-100 wherein, n=10-70, x=2-10; R is C
9H
19-.
(2) polyoxyethylene polyoxypropylene propylene glycol
Molecular-weight average 2000-5000, solid content is greater than 99%;
Molecular structural formula is
M=10-100 wherein, n=10-120.
Alkyl benzene sulphonate (ABS)
Molecular structural formula is
Wherein R is CH
3-or C
12H
25-.
Also can add additives such as neutralizing agent, solid wetting agent, metal chelating agent in the compound process according to the needs that different oil are planted.When the dried agent raw material of function emulsion splitter can not flow at normal temperatures, can adopt the steam heating water bath bakingization, 60-100 ℃ of control bath temperature makes emulsion splitter do agent and possesses flow state.When carrying out composite operation, to measure each organic solvent earlier by mass percentage and add the stirring tank that has the chuck insulation, under whipped state, selected function emulsion splitter is measured the adding stirring tank by mass percentage, can not need possess flow state by the dried agent raw material of mobile emulsion splitter under the normal temperature through the steam heating water bath bakingization, mixed solvent and function emulsion splitter are controlled rotating speed 30-150r/min under 20-80 ℃ of temperature, stir 20-60min to stirring blowing when temperature is reduced to 30-40 ℃.Quality standard through composite composite oil-soluble demulsifier product is as follows:
| Sequence | Project | Index | |
| 1 | Outward appearance | Transparent thick liquid does not have mechanical impurity. | |
| 2 | Colourity (number) | ≤ 300 | |
| 3 | Relative dehydration rate (%) | 〉=95 | |
| 4 | The pH value | 6.0-8.0 | |
| 5 | Flash-point (℃) | 〉=25 | |
| 6 | Condensation point (℃) | ≤-25 |
Carry out the demulsification checking with all higher Peng Lai 19-3 crude oil of acid number, viscosity, proportion, saltiness, respectively at composite oil-soluble demulsifier and four kinds of main emulsion splitter composition commodity at 90 ℃, various emulsion splitters are pressed the 20ppm dosage, adopt thermal subsidence dehydration test method (bottle examination method), comparing result sees the following form 1:
The contrast of the different emulsion splitter deposition dehydrating of table 1 rate
| Sequence number | The emulsion splitter title | Injection rate Ppm | Settling time (min) and dehydration rate (%) | ||||
| 10min | 20min | | 40min | 60min | |||
| 1 | | 20 | 7 | 22.5 | 43 | 52.5 | 71.5 |
| 2 | | 20 | 8 | 25 | 47.5 | 60 | 75 |
| 3 | | 20 | 2.5 | 12.5 | 27.5 | 45 | 65 |
| 4 | TA1031 | 20 | 7.5 | 19 | 45 | 57.5 | 76 |
| 5 | Composite | 20 | 17.5 | 42.5 | 65 | 82.5 | 91 |
Annotate: BPR27141, BPR27638 are U.S. PETROLITE company demulsifier product, and BP2070, TA1031 are Zhenjiang, Jiangsu Dongchang petrochemical corporation (complex) demulsifier product, and composite demulsifying agent is a composite oil-soluble demulsifier product of the present invention.
By table 1 correlation data as can be seen: composite oil-soluble demulsifier various relatively composition emulsion splitters on deposition dehydrating efficient improve a lot, and dehydration water quality and water-oil interface situation also are greatly improved.Total application performance strengthens greatly.
With EST (Emulsion Stability Tester) emulsion stability tester same oil product is carried out the electric field dehydration test, 90 ℃ of test temperatures, strength of electric field 2000v/cm, various emulsion splitter injection rate 20ppm, water injection rate 5% (5ml).Oil-water emulsion mixes 100 times, electric field dewatering efficiency such as the following table 2 of the oil-water emulsion mixed solution of formation under different emulsion splitter effects
The electric field dewatering efficiency contrast of table 2 oil-water emulsion mixed solution under different emulsion splitter effects
| Sequence number | The emulsion splitter title | Injection rate ppm | Electric field action time (min) and dehydrating amount (ml) | ||||
| 1min | 2min | | 4min | 5min | |||
| 1 | | 20 | 1.2 | 4 | 4.5 | 4.6 | 4.9 |
| 2 | BPR27638 | 20 | 1.3 | 4.1 | 4.55 | 4.65 | 4.9 |
| 3 | | 20 | 0.8 | 3.2 | 4.0 | 4.3 | 4.6 |
| 4 | TA1031 | 20 | 1.0 | 3.5 | 4.2 | 4.5 | 4.8 |
| 5 | Composite | 20 | 2.4 | 4.5 | 4.9 | 5.0 | 5.0 |
By table 2 correlation data as can be seen: composite demulsifying agent various relatively composition emulsifying agents on the electric field dewatering efficiency are improved, and the composite demulsifying agent dehydrating amount tends towards stability behind the 3min.
Advantage of the present invention just is to make various functional type emulsion splitter molecule and auxiliary agent synergy owing to adopt the compound prescription technology, forms very strong synergistic effect.Solved the difficult problem of the various oil variety of single type emulsion splitter incompatibility type.Simultaneously, adopt mixed solvent, compound prescription production technique, also solved the intermiscibility problem of various water-soluble, oil solubles and other types function raw material, a lot of water-soluble demulsifiers all can be used as the raw material of oil-soluble demulsifier, give full play to various breakdown of emulsion functions, improved the emulsion splitter performance greatly, reduced emulsion splitter consumption and application cost.Simultaneously most of solvent and function emulsion splitter are with the water discharging in oil field and refinery's crude oil desalting, dewatering process process for composite oil-soluble demulsifier, thereby environmental pollution reduces greatly.Composite oil-soluble demulsifier has following application characteristic:
(1) can before crude oil pump, directly once inject by the oil phase pipeline, reach at the oil phase homodisperse through pump and heat exchange process effect, the breakdown of emulsion longer duration of stable emulsion water droplet in the crude oil.
(2) adopt compound prescription and production technique, product reasonable ratio, technical maturity are particularly suitable for fast emulsion breaking dehydration, desalinating process requirement under the electric field action.Be different from pure water dissolubility and pure oil-soluble demulsifier, composite oil-soluble demulsifier of the present invention contains the water-soluble breakdown of emulsion molecule of small part, most oil soluble breakdown of emulsion molecule in forming, obstinate emulsification interfacial film is had dual demulsification, and be more suitable in field water injection skill operating process.
(3) composite oil-soluble demulsifier of the present invention is easier to bring into play the synergistic effect of different emulsion splitter molecules, saves usage quantity, improves result of use.
(4) adopt mixed solvent, make fine the mixing of pure water dissolubility emulsion splitter and oil-soluble demulsifier energy, and in the crude oil medium, disperse rapidly.
(5) composite oil-soluble demulsifier of the present invention has stronger restraining effect to the water-oil interface emulsion especially.
(6) composite oil-soluble demulsifier of the present invention has market raw material sources widely, can reduce cost, significantly improve economic benefit.
Therefore, composite oil-soluble demulsifier of the present invention has the vast market promotion prospect.
Description of drawings
The present invention is described further below in conjunction with accompanying drawing;
Fig. 1 is a composite oil-soluble demulsifier of the present invention and the correlation curve figure of different emulsion splitters dehydration rate under electric field;
Fig. 2 composite oil-soluble demulsifier of the present invention is electric field region electric current-time changing curve figure in the electric field dehydration.
With reference to Fig. 1, by the contrast of composite oil-soluble demulsifier of the present invention with different emulsion splitters dehydration rates under electric field such as BPR27141, BPR27638, BP2070, TA1031, the dehydration rate of composite oil-soluble demulsifier of the present invention in the same electrical field action time all is higher than other single type emulsion splitters.Wherein the composition of BPR27141, BPR27638 and three kinds of commodity-type emulsion splitters of TA1031 is the alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether, molecular-weight average 3000-10000; The composition of BP2070 is the polyoxyethylene polyoxypropylene propylene glycol, molecular-weight average 2000-5000.
With reference to Fig. 2, this curve representation: the mixing oil water-in-oil emulsion is under the acting in conjunction of high-voltage electric field between pole plate and composite oil-soluble demulsifier of the present invention, the rapid coalescent sedimentation of water droplet, at firm added electric field in a flash, disperse water droplet promptly to produce the dipole coalescence effect, because water droplet this moment degree of scatter maximum in crude oil, performance crude oil emulsion electroconductibility is the strongest, when the process short period, the big drops of water fall down of coalescent formation breaks away from this zone, water content reduces in the electric field region oil phase, and oil phase electroconductibility becomes a relatively stable value, and the current value of curve display tends towards stability.The current waveform of projection and relative time thereof, shown the degree of stability of crude oil emulsion and to the influence of electric field dewatering efficiency.This curve shows that disperse water drips off into the coalescent time greatly about about 0.5 minute at the test electric field region.
Embodiment
Below be embodiments of the invention, the actual use of the present invention is not limited to embodiment.
(1) starting material
(1) the mixed solvent mass percent is 55%, wherein dimethylbenzene 30%, methyl alcohol 10%, Virahol 10%, methylcarbonate 5%;
The specification quality technical requirements
Dimethylbenzene technical grade purity 99.5%, Shanghai edifies chemical industry company limited and makes;
Methyl alcohol premium grads purity 99%, Shanghai edifies chemical industry company limited and makes;
Virahol purity 99.5%, Shanghai edifies chemical industry company limited and makes;
Methylcarbonate purity 99.5%, Shanghai edifies chemical industry company limited and makes.
(2) function emulsion splitter mass percent is 45%, wherein BPR27141 15%, BPR2763815%, BP2070 5% (doing agent), TA1031 9.5% (doing agent), alkyl benzene sulphonate (ABS) 0.5%.
The specification quality technical requirements
The BPR27141 main component is the alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether, and molecular-weight average 6000, solid content are greater than 80%, and U.S. PETROLITE company makes;
The BPR27638 main component is the alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether, and molecular-weight average 8000, solid content are greater than 80%, and U.S. PETROLITE company makes;
The BP2070 main component is the polyoxyethylene polyoxypropylene propylene glycol, and molecular-weight average 4000, solid content are greater than 99%, and Zhenjiang, Jiangsu Dongchang petrochemical corporation (complex) makes;
The TA1031 main component is the alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether, and molecular-weight average 3000, solid content are greater than 99%, and Zhenjiang, Jiangsu Dongchang petrochemical corporation (complex) makes;
Alkyl benzene sulphonate (ABS) purity 96%, Nanjing Datang chemical industry company limited makes.
(2) production unit
(1) stirring tank volume 2M
3, φ 1650 * 2000mm, oar formula stir;
(2) sea water bath length * wide * height=2000 * 2000 * 1100mm.
(3) production control condition
Steam heating water bath bakingization: vapor pressure 0.20MPa, 80 ℃ of bath temperatures.
Composite: 65 ℃ of mixing temperatures, rotating speed 100r/min, churning time 40min, 35 ℃ of blowing temperature.
When carrying out composite work, according to ratio requirement difference weighing organic solvent dimethylbenzene 300Kg, methyl alcohol 100Kg, Virahol 100Kg, methylcarbonate 50Kg; Function emulsion splitter BPR27141150Kg, BPR27638150Kg, BP2070 (doing agent) 50Kg, TA1031 (doing agent) 95Kg, alkyl benzene sulphonate (ABS) 5Kg.Earlier organic solvent dimethylbenzene, methyl alcohol, Virahol, the methylcarbonate that measures added stirring tank successively, stirring at normal temperature, mix.Then BPR27141, the BPR27638 that measures added stirring tank under stirring condition, will dry by the fire the BP2070 and the TA1031 that change into molten state by steam heating water bath in advance simultaneously and join in the stirring tank successively.The dried agent of BP2070 and TA1031 is dried by the fire in advance by steam heating water bath and is changed into molten state, steam heating water bath bakingization vapor pressure 0.20MPa, 80 ℃ of bath temperatures.Stirring tank stirred 40 minutes under the 100r/min rotating speed, added the alkyl benzene sulphonate (ABS) through metering at last, stirred, and blowing when temperature is reduced to 35 ℃ promptly gets composite oil-soluble demulsifier product.The specification of quality of composite oil-soluble demulsifier product is as follows:
(1) outward appearance: faint yellow transparent thick liquid, colourity is less than No. 300;
(2) relative dehydration rate: 〉=95%;
(3) pH value (test paper): 7;
(4) flash-point:＞25 ℃;
(5) condensation point:＜-15 ℃
Commingled crude at heavy crude and Shengli crude on the refinery electric desalting apparatus uses composite oil-soluble demulsifier, and the electric field operation is normal, and crude oil takes off preceding saliferous 80-130mg/L, takes off the back saliferous less than 3mg/L, and it is moisture less than 0.3% that crude oil takes off the back.And adopt general water-soluble demulsifier, and oil-water emulsion is more serious, and the electric field fluctuation of service is taken off the back saliferous greater than 10mg/L, and it is moisture often greater than 0.5% that crude oil takes off the back.Composite oil-soluble demulsifier desalting and dewatering effect is obvious.
(1) starting material
(1) the mixed solvent mass percent is 45%, wherein dimethylbenzene 15%, solvent oil 30%;
The specification quality technical requirements
Dimethylbenzene technical grade purity 99.5%, Shanghai edifies chemical industry company limited and makes;
Solvent oil 200
#, technical grade Jinling Petrochemical Co. makes.
(2) function emulsion splitter mass percent is 55%, wherein AR36 30% (doing agent), BP204024.5% (doing agent), alkyl benzene sulphonate (ABS) 0.5%.
The specification quality technical requirements
The AR36 main component is the alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether, and molecular-weight average 6000, solid content are greater than 99%, and Zhenjiang, Jiangsu Dongchang petrochemical corporation (complex) makes;
The BP2040 main component is the polyoxyethylene polyoxypropylene propylene glycol, and molecular-weight average 3000-4000, solid content are greater than 90%, and chemical industry two factories of Nanjing Jinling Petrochemical Co. make;
Alkyl benzene sulphonate (ABS) purity 96%, Nanjing Datang chemical industry company limited makes.
(2) production unit
(1) stirring tank volume 2M
3, φ 1650 * 2000mm, oar formula stir;
(2) sea water bath length * wide * height=2000 * 2000 * 1100mm.
(3) production control condition
Steam heating water bath bakingization: vapor pressure 0.20MPa, bath temperature 80-95 ℃.
Composite: 70 ℃ of mixing temperatures, rotating speed 120r/min, churning time 40min, 30 ℃ of blowing temperature.
When carrying out composite work, according to ratio requirement difference weighing organic solvent dimethylbenzene 150Kg, solvent oil 300Kg; Emulsion splitter AR36 (doing agent) 300Kg, BP2040 245Kg, alkyl benzene sulphonate (ABS) 5Kg.Earlier with the organic solvent dimethylbenzene, 200 that measures
#Solvent oil adds stirring tank successively, stirring at normal temperature, mixes.The BP2040 and the AR36 that change into molten state by steam heating water bath baking in advance that will measure then join in the stirring tank successively, the dried agent of BP2040 and AR36 is dried by the fire in advance by steam heating water bath and is changed into molten state, steam heating water bath bakingization vapor pressure 0.20MPa, bath temperature 80-95 ℃.Stirring tank stirred 40 minutes under the 120r/min rotating speed, added the alkyl benzene sulphonate (ABS) through metering at last, stirred, and blowing when temperature is reduced to 30 ℃ promptly gets composite oil-soluble demulsifier product.The specification of quality of composite oil-soluble demulsifier product is as follows:
(1) outward appearance: faint yellow transparent thick liquid, colourity is less than No. 300;
(2) relative dehydration rate: 〉=95%;
(3) pH value (test paper): 7;
(4) flash-point:＞35 ℃;
(5) condensation point:＜-15 ℃.
Use composite oil-soluble demulsifier at marine (Weizhou) crude oil on the refinery electric desalting apparatus, the electric field operation is normal, and crude oil takes off preceding saliferous 85mg/L, take off the back saliferous less than 3mg/L, the desalination qualification rate is greater than 90%, and it is moisture less than 0.2% that crude oil takes off the back, and oil-containing is less than 100ppm in the water.Adopt composite oil-soluble demulsifier desalination, dehydrating effect obvious.
(1) starting material
(1) the mixed solvent mass percent is 30%, wherein dimethylbenzene 25%, Virahol 5%;
The specification quality technical requirements
Dimethylbenzene technical grade purity 99.5%, Shanghai edifies chemical industry company limited and makes;
Virahol purity 99.5%, Shanghai edifies chemical industry company limited and makes.
(2) function emulsion splitter mass percent is 70%, wherein AR36 64.5% (doing agent), BP2040 5% (doing agent), Witco 1298 Soft Acid 0.5%.
The specification quality technical requirements
The AR36 main component is the alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether, and molecular-weight average 6000, solid content are greater than 90%, and Zhenjiang, Jiangsu Dongchang petrochemical corporation (complex) makes;
The BP2040 main component is the polyoxyethylene polyoxypropylene propylene glycol, and molecular-weight average 3000-4000, solid content are greater than 99%, and chemical industry two factories of Nanjing Jinling Petrochemical Co. make;
Witco 1298 Soft Acid purity 96%, Nanjing Datang chemical industry company limited makes.
(2) production unit
(1) stirring tank volume 2M
3, φ 1650 * 2000mm, oar formula stir;
(2) sea water bath length * wide * height=2000 * 2000 * 1100mm.
(3) production control condition
Steam heating water bath bakingization: vapor pressure 0.20MPa, 90 ℃ of bath temperatures.
Composite: mixing temperature 55-65 ℃, rotating speed 60-100r/min, churning time 30min, 35 ℃ of blowing temperature.
When carrying out composite work, according to ratio requirement difference weighing organic solvent dimethylbenzene 250Kg, Virahol 50Kg; Emulsion splitter AR36 (doing agent) 645Kg, BP2040 (doing agent) 50Kg, Witco 1298 Soft Acid 5Kg.Earlier organic solvent dimethylbenzene, the Virahol that measures added stirring tank successively, stirring at normal temperature, mix.The AR36, the BP2040 that change into molten state by steam heating water bath baking in advance that will measure then join in the stirring tank successively, the dried agent of BP2040 and AR36 is dried by the fire in advance by steam heating water bath and is changed into molten state, steam heating water bath bakingization vapor pressure 0.20MPa, 90 ℃ of bath temperatures.Stirring tank stirred 30 minutes under the 60-100r/min rotating speed, added the Witco 1298 Soft Acid through metering at last, stirred, and blowing when temperature is reduced to 35 ℃ promptly gets composite oil-soluble demulsifier product.The specification of quality of composite oil-soluble demulsifier product is as follows:
(1) outward appearance: faint yellow transparent thick liquid, colourity is less than No. 300;
(2) relative dehydration rate: 〉=95%;
(3) pH value (test paper): 7-8;
(4) flash-point:＞25 ℃;
(5) condensation point:＜-15 ℃.
(1) starting material
(1) the mixed solvent mass percent is 70%, wherein dimethylbenzene 30%, methyl alcohol 5%, Virahol 30%, methylcarbonate 5%;
The specification quality technical requirements
Dimethylbenzene technical grade purity 99.5%, Shanghai edifies chemical industry company limited and makes;
Methyl alcohol premium grads purity 99.5%, Shanghai edifies chemical industry company limited and makes;
Virahol purity 99.5%, Shanghai edifies chemical industry company limited and makes;
Methylcarbonate purity 99.5%, Shanghai edifies chemical industry company limited and makes.
(2) function emulsion splitter mass percent is 30%, wherein AR46 29.5% (doing agent), Witco 1298 Soft Acid 0.5%.
The specification quality technical requirements
The AR46 main component is the alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether, and about molecular-weight average 8000-10000, solid content is greater than 90%, and Zhenjiang, Jiangsu Dongchang petrochemical corporation (complex) makes;
The BP2040 main component is the polyoxyethylene polyoxypropylene propylene glycol, and molecular-weight average 3000-4000, solid content are greater than 99%, and chemical industry two factories of Nanjing Jinling Petrochemical Co. make;
Witco 1298 Soft Acid purity 96%, Nanjing Datang chemical industry company limited makes.
(2) production unit
(1) stirring tank volume 2M
3, φ 1650 * 2000mm, oar formula stir;
(2) sea water bath length * wide * height=2000 * 2000 * 1100mm.
(3) production control condition
Steam heating water bath bakingization: vapor pressure 0.20MPa, bath temperature 90-95 ℃.
Composite: 70 ℃ of mixing temperatures, rotating speed 120r/min, churning time 40min, 30 ℃ of blowing temperature.
When carrying out composite work, according to ratio requirement difference weighing organic solvent dimethylbenzene 300Kg, methyl alcohol 50Kg, Virahol 300Kg, methylcarbonate 50Kg; Emulsion splitter AR46 (doing agent) 295Kg, Witco 1298 Soft Acid 5Kg.Earlier the organic solvent that measures is added stirring tank successively, stirring at normal temperature, mix.The AR46 that changes into molten state by steam heating water bath baking in advance that will measure then joins in the stirring tank, the dried agent of AR46 is dried by the fire in advance by steam heating water bath and is changed into molten state, steam heating water bath bakingization vapor pressure 0.20MPa, bath temperature 90-95 ℃.Stirring tank stirred 40 minutes under the 120r/min rotating speed, added the Witco 1298 Soft Acid through metering at last, stirred, and blowing when temperature is reduced to 30 ℃ promptly gets composite oil-soluble demulsifier product.The specification of quality of composite oil-soluble demulsifier product is as follows:
(1) outward appearance: faint yellow transparent thick liquid, colourity is less than No. 300;
(2) relative dehydration rate: 〉=95%;
(3) pH value (test paper): 7;
(4) flash-point:＞15 ℃;
(5) condensation point:＜-25 ℃.
(1) starting material
(1) the mixed solvent mass percent is 50%, wherein toluene 15%, dimethylbenzene 15%, glacial acetic acid 5%, Virahol 15%;
The specification quality technical requirements
Toluene technical grade purity 99.5%, Shanghai edifies chemical industry company limited and makes;
Dimethylbenzene technical grade purity 99.5%, Shanghai edifies chemical industry company limited and makes;
Glacial acetic acid technical grade purity 99.5%, Shanghai edifies chemical industry company limited and makes;
Virahol purity 99.5%, Shanghai edifies chemical industry company limited and makes;
(2) function emulsion splitter mass percent is 50%, wherein AR45 30% (doing agent), DLS2601 15%, Witco 1298 Soft Acid 5%.
The specification quality technical requirements
The AR45 main component is the alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether, and molecular-weight average about 8000, solid content are greater than 90%, and Zhenjiang, Jiangsu Dongchang petrochemical corporation (complex) makes;
The DLS2601 main component is the polyoxyethylene polyoxypropylene propylene glycol, and through cross-linking modified product, molecular-weight average 6000-8000, solid content are greater than 80%, and Samsung chemical company in Jiangsu produces;
Witco 1298 Soft Acid purity 96%, Nanjing Datang chemical industry company limited makes.
(2) production unit
(1) stirring tank volume 2M
3, φ 1650 * 2000mm, oar formula stir;
(2) sea water bath length * wide * height=2000 * 2000 * 1100mm.
(3) production control condition
Steam heating water bath bakingization: vapor pressure 0.20MPa, bath temperature 80-95 ℃.
Composite: 50 ℃ of mixing temperatures, rotating speed 60-120r/min, churning time 30-40min, 30 ℃ of blowing temperature.
When carrying out composite work, according to ratio requirement difference weighing organic solvent toluene 150Kg, dimethylbenzene 150Kg, glacial acetic acid 50Kg, Virahol 150Kg; Emulsion splitter AR45 (doing agent) 300Kg, DLS2601 150Kg, Witco 1298 Soft Acid 50Kg.Earlier organic solvent toluene, dimethylbenzene, the Virahol that measures added stirring tank successively, stirring at normal temperature, mix.The DLS2601 and the AR45 that change into molten state by steam heating water bath baking in advance that will measure then join in the stirring tank successively, the dried agent of AR45 is dried by the fire in advance by steam heating water bath and is changed into molten state, steam heating water bath bakingization vapor pressure 0.20MPa, bath temperature 80-95 ℃.Stirring tank stirred 30-40 minute under the 60-120r/min rotating speed, added the Witco 1298 Soft Acid through metering at last, stirred, when temperature is reduced to 30 ℃, slowly add the glacial acetic acid that measures, through stirring 30 minutes, after mixing of materials is even, promptly get composite oil-soluble demulsifier product.The specification of quality of composite oil-soluble demulsifier product is as follows:
(1) outward appearance: faint yellow transparent thick liquid, colourity is less than No. 200;
(2) relative dehydration rate: 〉=95%;
(3) pH value (test paper): 4-5;
(4) flash-point:＞25 ℃;
(5) condensation point:＜-15 ℃
This product is at metallic impurity in the crude oil, for example sodium, calcium, magnesium, iron etc., and the higher crude oil of content uses.
Claims (10)
1, a kind of composite oil-soluble demulsifier, it is characterized in that forming by mixed solvent and function emulsion splitter, mixed solvent adopts a kind of in dimethylbenzene, methyl alcohol, Virahol, solvent oil, the methylcarbonate organic solvent or several, the function emulsion splitter adopts the nonionic type tensio-active agent, wherein mixed solvent constituent mass per-cent proportioning is 30-70%, and function emulsion splitter constituent mass per-cent proportioning is 70-30%; Complex process carries out in the stirring tank that has the chuck insulation, and control condition is: composite mixing temperature 20-80 ℃, and mixing speed 30-150r/min, churning time 20-60min, 30-40 ℃ of blowing temperature.
2, composite oil-soluble demulsifier according to claim 1, it is characterized in that each organic solvent mass percent proportioning is dimethylbenzene 10-30%, methyl alcohol 0-30%, Virahol 0-30%, methylcarbonate 0-20% in the mixed solvent, function emulsion splitter mass percent proportioning is alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether 15-55%, polyoxyethylene polyoxypropylene propylene glycol 5-25%; Alkyl benzene sulphonate (ABS) 0.5-5%.
3, composite oil-soluble demulsifier according to claim 1, it is characterized in that each organic solvent mass percent proportioning is dimethylbenzene 15-55%, solvent oil 15-55% in the mixed solvent, function emulsion splitter mass percent proportioning is alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether 15-55%, polyoxyethylene polyoxypropylene propylene glycol 5-25%; Alkyl benzene sulphonate (ABS) 0.5-5%.
4, composite oil-soluble demulsifier according to claim 1 and 2, the mass percent that it is characterized in that mixed solvent is 55%, wherein dimethylbenzene 30%, methyl alcohol 10%, Virahol 10%, methylcarbonate 5%; Function emulsion splitter mass percent is 45%, and wherein BPR27141 is 15%, BPR27638 is 15%, BP2070 is that 5% (doing agent), TA1031 are that 9.5% (doing agent), alkyl benzene sulphonate (ABS) are 0.5%.
5, according to claim 1 or 3 described composite oil-soluble demulsifiers, the mass percent that it is characterized in that mixed solvent is 45%, wherein dimethylbenzene 15%, solvent oil 30%; Function emulsion splitter mass percent is 55%, and wherein AR36 is that 30% (doing agent), BP2040 are that 24.5% (doing agent), alkyl benzene sulphonate (ABS) are 0.5%.
6, composite oil-soluble demulsifier according to claim 1 and 2, it is characterized in that organic solvent adopts the commercial size organic solvent, function emulsion splitter alkyl phenolic resin polyoxyethylene poly-oxygen propylene aether molecular-weight average 3000-10000, polyoxyethylene polyoxypropylene propylene glycol molecular-weight average 2000-5000, R is CH in the alkyl benzene sulphonate (ABS) molecular structural formula
3-Ji.
7, composite oil-soluble demulsifier according to claim 6 is characterized in that R is C in the alkyl benzene sulphonate (ABS) molecular structural formula
12H
25-Ji.
8, composite oil-soluble demulsifier according to claim 1 is characterized in that the dried agent raw material of function emulsion splitter adopts the steam heating water bath bakingization, 60-100 ℃ of control bath temperature.
9, composite oil-soluble demulsifier according to claim 1 is characterized in that the composite oil-soluble demulsifier product quality: colourity≤No. 300, dehydration rate 〉=95%, pH value 6.0-8.0, flash-point 〉=25 ℃, condensation point≤-25 ℃ relatively.
10, composite oil-soluble demulsifier according to claim 2 is characterized in that the polyoxyethylene polyoxypropylene propylene glycol substitutes with its modified product.
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