CN114588664A - Microbubble fast-extinguishing aid and preparation method and application thereof - Google Patents

Microbubble fast-extinguishing aid and preparation method and application thereof Download PDF

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Publication number
CN114588664A
CN114588664A CN202210314607.1A CN202210314607A CN114588664A CN 114588664 A CN114588664 A CN 114588664A CN 202210314607 A CN202210314607 A CN 202210314607A CN 114588664 A CN114588664 A CN 114588664A
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parts
microbubble
extinguishing
oil
stirring
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CN202210314607.1A
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Inventor
李鹏程
王龙延
李治
陈强
宋军超
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China Petroleum and Chemical Corp
Sinopec Engineering Group Co Ltd
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China Petroleum and Chemical Corp
Sinopec Engineering Group Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D19/00Degasification of liquids
    • B01D19/02Foam dispersion or prevention
    • B01D19/04Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D19/00Degasification of liquids
    • B01D19/02Foam dispersion or prevention
    • B01D19/04Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
    • B01D19/0431Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance containing aromatic rings
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G29/00Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
    • C10G29/20Organic compounds not containing metal atoms
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G29/00Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
    • C10G29/20Organic compounds not containing metal atoms
    • C10G29/22Organic compounds not containing metal atoms containing oxygen as the only hetero atom
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

Abstract

The invention discloses a microbubble quick-extinguishing auxiliary agent, a preparation method and application thereof, and belongs to the technical field of petrochemical industry. The provided microbubble quick-extinguishing aid comprises the following components in parts by weight: 10-40 parts of isooctanol, 10-40 parts of polyether, 10-40 parts of diesel oil, 3-6 parts of polycyclic aromatic hydrocarbon and 3-6 parts of mineral oil. The microbubble fast-extinguishing additive does not contain corrosive substances or substances influencing the properties of oil products, does not contain silicon and other substances which have great influence on a hydrogenation reaction catalyst, and does not influence the properties of petroleum products after being added. The auxiliary agent can effectively eliminate micro bubbles in product oil, has good defoaming and foam inhibiting effects on normal large bubbles in the product, and has the effects of small dosage, high micro bubble eliminating speed, strong adaptability to different oil products and the like.

Description

Microbubble fast-extinguishing aid and preparation method and application thereof
Technical Field
The invention relates to the technical field of petrochemical industry, in particular to a microbubble quick-extinguishing auxiliary agent and a preparation method and application thereof.
Background
Relates to a large amount of gas-liquid-solid three-phase reaction in the field of modern petrochemical industry. Because the reaction rate is high in the gas-liquid-solid three-phase reaction, the reaction is greatly influenced by the internal and external diffusion of reactants and the mass transfer process, and the mass transfer rate of the reaction often determines the reaction efficiency of a production device, so that the energy efficiency, the product competitiveness and the like of the production process are directly influenced. Therefore, the mass transfer process of the enhanced reaction can achieve the effects of improving the reaction rate of the heterogeneous reaction, moderating the reaction conditions and the like. The mass transfer effect can be greatly optimized by the method of crushing gas-phase components in reactants into micron-sized components by a micro-interface unit and reacting the micron-sized components with a micro-interface system formed by liquid-phase reactants, and the method is widely advocated in the current oil refining industry.
In the field of petroleum product hydrogenation, the micro-interface strengthening process shows a good effect. In order to ensure a good mass transfer effect, micro bubbles generated by a micro interface unit need to have good stability, and stable micro bubbles are really beneficial to hydrogenation reaction, but have certain problems at the same time. And a part of excessive hydrogen remaining after the hydrogenation reaction exists in the product oil in the form of micro bubbles. A large amount of micro bubbles can generate great influence on separation equipment of an industrial device, so that the separation efficiency of the device is reduced, the processing capacity of the industrial device is reduced, and the stable operation of the whole device is influenced to cause potential safety hazards. Therefore, a method for rapidly eliminating excessive micro bubbles is needed to achieve the purpose of rapid gas-liquid separation of the product.
The currently existing defoaming expedients tend to separate the gas-liquid mixture of the traditional large bubbles, but do not relate to eliminating the micron-scale bubbles with better stability. Therefore, a microbubble fast-extinguishing aid capable of effectively eliminating microbubbles in oil products is needed at present.
In view of this, the invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a microbubble-containing quick-extinguishing aid, a preparation method and application thereof in order to overcome the defects in the prior art.
The invention is realized by the following steps:
the invention provides a microbubble quick-extinguishing auxiliary agent which comprises the following components in parts by weight: 10-40 parts of isooctanol, 10-40 parts of polyoxyethylene ether, 10-40 parts of diesel oil, 3-6 parts of polycyclic aromatic hydrocarbon and 3-6 parts of mineral oil.
The invention also provides a preparation method of the microbubble fast-extinguishing auxiliary agent, which comprises the following steps: and mixing isooctyl alcohol, polycyclic aromatic hydrocarbon, mineral oil, polyether and diesel oil according to a proportion to obtain the microbubble quick-extinguishing auxiliary agent.
The invention also provides an application of the microbubble quick-extinguishing auxiliary agent in eliminating bubbles of petroleum products.
The invention has the following beneficial effects:
the invention provides a microbubble quick-extinguishing aid and a preparation method and application thereof, wherein the microbubble quick-extinguishing aid comprises the following components in parts by weight: 10-40 parts of isooctanol, 10-40 parts of polyoxyethylene ether, 10-40 parts of diesel oil, 3-6 parts of polycyclic aromatic hydrocarbon and 3-6 parts of mineral oil. The polyether can effectively inhibit foam generation, isooctanol has the effect of destroying foam, mineral oil replaces silicon oil to serve as a surfactant to reduce local surface tension and destroy elasticity of an interfacial film to enable the interfacial film to lose an automatic repairing effect, and a small amount of diesel oil and polycyclic aromatic hydrocarbon can increase solubility of the microbubble fast-extinguishing auxiliary agent in gasoline and diesel oil, so that the isooctanol can easily permeate into a liquid film, the liquid film is thinned, and breaking of bubbles is accelerated. The auxiliary agent can effectively eliminate micro bubbles in product oil and has good defoaming and foam inhibiting effects on normal large bubbles in the product.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The invention aims to provide a microbubble quick-extinguishing aid and a preparation method and application thereof.
In order to achieve the above object of the present invention, the following technical solutions are adopted.
In a first aspect, an embodiment of the present invention provides a microbubble quick-extinguishing auxiliary agent, including the following components in parts by weight: 10-40 parts of isooctanol, 10-40 parts of polyoxyethylene ether, 10-40 parts of diesel oil, 3-6 parts of polycyclic aromatic hydrocarbon and 3-6 parts of mineral oil.
The hydrogenation of oil products is an important means for removing olefin, metal impurities, desulfurizing, denitrifying, cracking asphaltene and the like, reducing the severity of oil refining and improving the yield of light oil. In general, under the condition of hydrogen pressure and existence of catalyst, the harmful impurities of sulfur, oxygen and nitrogen in the oil product are converted into correspondent oxygen sulfide, water and ammonia, and the olefin and diolefin are hydrogenated and saturated, and the aromatic hydrocarbon is partially hydrogenated and saturated so as to improve the quality of oil product. In order to remove impurities such as sulfur, nitrogen, oxygen and the like in the raw material better and/or reduce the size of raw oil molecules, a micro-interface reinforced hydrogenation process can be adopted. A large amount of stable micro bubbles generated by micro interface reinforcement still have surplus after the hydrogenation reaction is finished. A large amount of residual micro-bubbles can generate great influence on the separation equipment of the industrial device, so that the separation efficiency of the device is reduced, the treatment capacity of the industrial device is reduced, and the stable operation of the whole device is influenced to cause potential safety hazards.
In order to eliminate micro bubbles existing in a hydrogenated oil product after a micro interface enhanced oil product hydrogenation reaction, the inventor provides a micro bubble fast-extinguishing auxiliary agent through long-term practice, and the micro bubble fast-extinguishing auxiliary agent mainly comprises isooctanol, polyether, diesel oil, polycyclic aromatic hydrocarbon and mineral oil, wherein isooctanol, polyether and mineral oil are used as main components, diesel oil and polycyclic aromatic hydrocarbon are used as auxiliary components, the polyether can effectively inhibit foam generation, the isooctanol has an effect of destroying foam, the mineral oil replaces silicone oil to be used as a surfactant to reduce local surface tension and destroy the elasticity of an interface membrane, so that the automatic repair effect is lost, a small amount of diesel oil and polycyclic aromatic hydrocarbon can increase the solubility of the micro bubble fast-extinguishing auxiliary agent in gasoline and diesel oil, so that the isooctanol can more easily permeate into a liquid membrane, the liquid membrane is thinned, and the breaking of bubbles is accelerated.
Therefore, the embodiment of the invention provides the microbubble fast-extinguishing additive which does not contain corrosive substances or substances influencing the properties of oil products, does not contain silicon and other substances which have great influence on the hydrogenation reaction catalyst, and does not influence the properties of petroleum products after being added. The microbubble fast-extinguishing auxiliary has good oil solubility, is easy to dissolve in hydrocarbon substances such as gasoline, diesel oil and the like, has strong dispersion effect in petroleum products, has extremely low surface tension and cohesion, and can be spread on the surface of a microbubble liquid film spontaneously, so that the surface tension of the liquid film is reduced at an extremely high speed, and the thickness of the liquid film is reduced until the liquid film is broken. The auxiliary agent can effectively eliminate micro bubbles in product oil and has good defoaming and foam inhibiting effects on normal large bubbles in the product.
In an optional embodiment, the microbubble agent comprises the following components in parts by weight: 20-35 parts of isooctanol, 15-35 parts of polyether, 15-30 parts of diesel oil, 4-5 parts of polycyclic aromatic hydrocarbon and 4-5 parts of mineral oil.
In an alternative embodiment, the polyether is at least one of polyoxyethylene ether and polyoxypropylene ether, preferably polyoxyethylene ether.
In a second aspect, an embodiment of the present invention provides a method for preparing the microbubble fast extinguishing aid, including: and mixing isooctyl alcohol, polycyclic aromatic hydrocarbon, mineral oil, polyether and diesel oil according to a proportion to obtain the microbubble quick-extinguishing auxiliary agent.
In an alternative embodiment, the method comprises the following steps: mixing isooctyl alcohol, polycyclic aromatic hydrocarbon and mineral oil, heating, stirring and mixing uniformly, reducing the temperature, adding polyether and diesel oil in sequence, stirring and mixing uniformly again to obtain the microbubble quick-extinguishing aid.
In an alternative embodiment, the polyether is at least one of polyoxyethylene ether and polyoxypropylene ether, preferably polyoxyethylene ether.
In an alternative embodiment, the method comprises the following steps: mixing isooctyl alcohol, polycyclic aromatic hydrocarbon and mineral oil, heating to 50-80 ℃, stirring at the speed of 30-60 revolutions per minute, reacting for 2-5 hours, cooling to 20-30 ℃, adding polyoxyethylene ether, stirring for reacting for 5-10 minutes, then adding part of diesel oil, continuing stirring for 1-2 hours, stopping stirring and naturally cooling to room temperature, standing for 2-5 hours, adding the rest diesel oil under stirring, and obtaining a uniform liquid mixture, namely the microbubble fast-extinguishing aid.
In the preparation process of the microbubble fast-extinguishing aid, isooctyl alcohol, polycyclic aromatic hydrocarbon and mineral oil are mixed, the temperature is raised to 50-80 ℃, the components are mixed, the mixture is heated and stirred to be more uniform due to the high viscosity of the components, then the uniformly mixed solution is reduced to 20-30 ℃, polyoxyethylene ether and diesel oil are sequentially added, and finally the uniformly mixed solution is the microbubble fast-extinguishing aid.
In a third aspect, the embodiment of the present invention provides an application of the microbubble quick-extinguishing aid in eliminating bubbles in a petroleum product.
In an alternative embodiment, the microbubble kill assistant is used to eliminate bubbles generated in the diesel hydrogenation reaction.
In an alternative embodiment, the microbubble agent is used in an amount of 0.001 to 0.01% (volume fraction).
The features and properties of the present invention are described in further detail below with reference to examples.
The embodiment of the invention provides an oil-based microbubble quick-extinguishing auxiliary agent. The auxiliary agent has a strong dispersing effect in petroleum products, has extremely low surface tension and cohesion, and can be spontaneously spread on the surface of a microbubble liquid film, so that the surface tension of the liquid film is reduced at a high speed, and the thickness of the liquid film is reduced until the liquid film is broken.
The components of the invention do not contain corrosive substances or substances influencing the properties of oil products, and the components can be added into a subsequent separation system of a reaction device through special small-sized feeding equipment in hydrogenation reaction, thereby playing a role in quickly eliminating micro bubbles and ensuring the long-period stable operation of the device.
In order to achieve the technical characteristics, the technical scheme adopted by the invention is as follows:
a microbubble quick-extinguishing aid comprises the following components in parts by weight: 10-40 parts of isooctanol, 10-40 parts of polyether, 10-40 parts of diesel oil, 3-6 parts of polycyclic aromatic hydrocarbon and 3-6 parts of mineral oil.
The composition comprises the following components in parts by weight: 20-35 parts of isooctanol, 15-35 parts of polyether, 15-30 parts of diesel oil, 4-5 parts of polycyclic aromatic hydrocarbon and 4-5 parts of mineral oil.
The polyether used above may be a polyether commonly used in the art, and is preferably polyoxyethylene ether.
Meanwhile, the embodiment of the invention also provides a preparation method of the microbubble fast-extinguishing aid, which comprises the following steps:
(1) the raw materials prepared by weight portion comprise 10-40 portions of isooctyl alcohol, 10-40 portions of polyoxyethylene ether, 5-20 portions of diesel component, 3-6 portions of polycyclic aromatic hydrocarbon and 3-6 portions of mineral oil;
(2) preparation: adding isooctanol, polycyclic aromatic hydrocarbon and mineral oil into a reaction kettle in sequence, heating to 50-80 ℃, stirring at the speed of 30-60 revolutions per minute, reacting for 2-5 hours, cooling to 20-30 ℃, adding polyoxyethylene ether, stirring for reacting for 5-10 minutes, then adding part of diesel oil components, continuing stirring for 1-2 hours, stopping stirring and naturally cooling to room temperature, standing for 2-5 hours, adding the rest diesel oil components under stirring, and uniformly stirring to obtain a liquid mixture serving as the microbubble quick-extinguishing aid.
The above embodiments of the present invention provide a method for preparing the microbubble fast extinguishing aid, and the microbubble fast extinguishing aid is prepared by the above method, but is not limited to the above preparation method.
Example 1
30ml of isooctanol, 5ml of polycyclic aromatic hydrocarbon and 5ml of mineral oil are weighed and added into the reaction kettle in sequence. After proper stirring, heating the reaction kettle to 50 ℃, stirring at the speed of 40 revolutions per minute for 2 hours, cooling to 30 ℃, adding 30ml of polyoxyethylene ether, stirring for reaction for 5 minutes, then adding 10ml of diesel component, continuing stirring for 1 hour, stopping stirring, and naturally cooling to room temperature. After standing for 3 hours, 20ml of diesel oil component is added under stirring, and the mixture is stirred evenly to obtain a liquid mixture. As the microbubble agent 1 of the present invention.
Example 2
25ml of isooctanol, 5ml of polycyclic aromatic hydrocarbon and 5ml of mineral oil are weighed and added into a reaction kettle in sequence. After proper stirring, heating the reaction kettle to 60 ℃, stirring at the speed of 40 revolutions per minute for 2 hours, cooling to 30 ℃, adding 35ml of polyoxyethylene ether, stirring for reaction for 5 minutes, then adding 10ml of diesel component, continuing stirring for 2 hours, stopping stirring, and naturally cooling to room temperature. After standing for 3 hours, 20ml of diesel oil component is added under stirring, and the mixture is stirred evenly to obtain a liquid mixture. As the microbubble agent 2 of the present invention.
Example 3
20ml of isooctanol, 5ml of polycyclic aromatic hydrocarbon and 5ml of mineral oil are weighed and added into the reaction kettle in sequence. After proper stirring, heating the reaction kettle to 80 ℃, stirring at the speed of 40 revolutions per minute for 5 hours, cooling to 30 ℃, adding 40ml of polyoxyethylene ether, stirring for reaction for 10 minutes, then adding 10ml of diesel component, continuing stirring for 2 hours, stopping stirring, and naturally cooling to room temperature. After standing for 3 hours, 20ml of diesel oil component is added under stirring, and the mixture is stirred evenly to obtain a liquid mixture. As the microbubble agent 3 of the present invention.
Example 4
40ml of isooctanol, 6ml of polycyclic aromatic hydrocarbon and 4ml of mineral oil are measured and added into a reaction kettle in sequence. After proper stirring, heating the reaction kettle to 80 ℃, stirring at the speed of 40 revolutions per minute for 2 hours, cooling to 30 ℃, adding 20ml of polyoxyethylene ether, stirring for reaction for 5 minutes, then adding 20ml of diesel component, continuing stirring for 1 hour, stopping stirring, and naturally cooling to room temperature. After standing for 3 hours, 20ml of diesel oil component is added under stirring, and the mixture is stirred evenly to obtain a liquid mixture. As the microbubble agent 4 of the present invention.
Example 5
10ml of isooctanol, 5ml of polycyclic aromatic hydrocarbon and 5ml of mineral oil are measured and added into a reaction kettle in sequence. After proper stirring, heating the reaction kettle to 80 ℃, stirring at the speed of 40 revolutions per minute for 2 hours, cooling to 30 ℃, adding 40ml of polyoxyethylene ether, stirring for reaction for 5 minutes, then adding 20ml of diesel component, continuing stirring for 1 hour, stopping stirring, and naturally cooling to room temperature. After standing for 3 hours, 20ml of diesel oil component is added under stirring, and the mixture is stirred evenly to obtain a liquid mixture. As the microbubble agent 5 of the present invention.
Comparative example 1
Similar to the composition and preparation of example 1, except that: the content of isooctyl alcohol is 5ml, and the microbubble quick-extinguishing aid 6 is used.
Comparative example 2
Similar to the composition and preparation of example 1, except that: the content of isooctyl alcohol is 100ml, and the product is used as the microbubble fast-extinguishing auxiliary 7.
Comparative example 3
Similar to the composition and preparation of example 1, except that: mineral oil is not added, and the microbubble agent 8 is used as the microbubble agent for quickly extinguishing the microbubbles according to the present invention.
Comparative example 4
Similar to the composition and preparation of example 1, except that: the polyoxyethylene ether, the content of which is 5ml, is used as the microbubble fast-extinguishing auxiliary 9 of the invention.
Comparative example 5
Similar to the composition and preparation of example 1, except that: the polyoxyethylene ether, the content of which is 100ml, is used as the microbubble agent 10 of the present invention.
Comparative example 6
Similar to the composition and preparation of example 1, except that: polyoxyethylene ether is replaced by polyoxypropylene ether to be used as the microbubble fast-extinguishing auxiliary 11.
Comparative example 7
Similar to the composition and preparation of example 1, except that: diesel oil and aromatic hydrocarbon are not added, and the micro-bubble fast-extinguishing auxiliary 12 is used.
Comparative example 8
Defoaming tests are carried out by using the same dosage of commercial organic silicon defoaming agent, and the microbubble defoaming rate and the large bubble defoaming rate are tested.
Comparative example 9
The same amount of commercially available polyether defoamer is adopted to carry out defoaming test, and the microbubble defoaming rate and the large bubble defoaming rate are tested.
0.1mL of microbubble quick-extinguishing aid is dropwise added into the oil product after 2L of micro-interface strengthening hydrogenation for defoaming test, and the test results are shown in Table 2.
The evaluation conditions and the evaluation results of the microbubble fast-extinguishing performance and the large-bubble defoaming performance of the microbubble fast-extinguishing aid are as follows:
the defoaming effect of the microbubbles in the embodiment is defined by the defoaming rate of the microbubbles. That is, the percentage of the amount of gas after defoaming and the total amount of gas before defoaming, was calculated by measuring the density of the fluid before and after defoaming, and the calculation formula was as follows:
Figure BDA0003568641440000101
wherein Pt is the density (100 ℃, kg/m) of oil product after micro-bubbles are eliminated3);
P0 is density of oil product (100 deg.C, kg/m) before eliminating microbubbles3);
Pj is the density (100 ℃, kg/m) of the base oil product3)。
The defoaming effect for large bubbles in the examples is defined by the defoaming rate. Namely, the foam layer height before and after defoaming was measured, and the calculation formula was as follows:
the defoaming rate (ξ) is used to express the performance of the defoaming agent. The calculation formula is as follows:
Figure BDA0003568641440000102
wherein H1 is the highest height (mm) of the foam layer before the microbubble quick-extinguishing aid is added;
h2 is the lowest height (mm) of the foam layer after the microbubble kill agent is added.
The properties of the microbubble agent 1 are shown in table 1.
TABLE 1 Properties of microbubble agent 1
Figure BDA0003568641440000103
Figure BDA0003568641440000111
The defoaming results of the use examples and comparative examples are shown in table 2 below.
TABLE 2 defoaming evaluation results
Number of auxiliaries Defoaming ratio of micro bubbles% Defoaming rate of large bubbles%
Example 1 Microbubble fast-extinguishing aid 1 90.2 95.5
Example 2 Microbubble fast-extinguishing aid 2 88.9 96.2
Example 3 Microbubble fast-extinguishing aid 3 80.6 93.2
Example 4 Microbubble fast-extinguishing aid 4 80.5 92.0
Example 5 Microbubble quick-extinguishing auxiliary 5 78.0 94.1
Comparative example 1 Microbubble quick-extinguishing auxiliary agent 6 20.4 90.0
Comparative example 2 Microbubble fast-extinguishing aid 7 66.5 86.8
Comparative example 3 Microbubble fast-extinguishing auxiliary agent 8 78.9 90.8
Comparative example 4 Microbubble fast-extinguishing auxiliary agent 9 45.3 91.1
Comparative example 5 Microbubble fast-extinguishing aid 10 65.2 89.1
Comparative example 6 Microbubble fast-extinguishing aid 11 88.9 92.7
Comparative example 7 Microbubble fast-extinguishing auxiliary 12 70.3 88.0
Comparative example 8 Commercially available silicone-based defoaming agent 38.2 94.2
Comparative example 9 Commercially available polyether defoamer 42.4 95.9
The results of the examples and the comparative examples of the present invention are analyzed, and it can be seen from the above table 2 that, compared with the conventional defoaming agent on the market, the defoaming agent provided by the examples of the present invention can not only effectively eliminate the micro bubbles in the product oil, but also has better defoaming and foam inhibiting effects on normal large bubbles in the product.
Meanwhile, isooctyl alcohol and polyoxyethylene ether are used as main components of the microbubble fast-extinguishing auxiliary agent, and play a decisive role in eliminating microbubbles. Too little addition will seriously affect the defoaming performance, but too much addition will affect the rest of the components and will have little effect on the defoaming performance. The performance of polyoxyethylene ether and polyoxypropylene ether is compared, the defoaming performance of polyoxyethylene ether is better than that of polyoxypropylene ether, and the fact that polyoxyethylene ether is a preferable polyether additive is proved. Meanwhile, other components such as mineral oil, diesel oil, aromatic hydrocarbon and the like are investigated, and the components have more or less influence on defoaming performance and are indispensable parts in the microbubble quick-extinguishing auxiliary agent. The test results show that the components and contents of the auxiliary according to the invention are preferred, as a result of the tests carried out on the examples and comparative examples.
In summary, the embodiment of the invention provides a microbubble fast-extinguishing auxiliary, and a preparation method and an application thereof. The microbubble fast-extinguishing aid comprises the following components in parts by weight: 10-40 parts of isooctanol, 10-40 parts of polyether, 10-40 parts of diesel oil, 3-6 parts of polycyclic aromatic hydrocarbon and 3-6 parts of mineral oil. The provided microbubble fast-extinguishing auxiliary agent does not contain corrosive substances or substances influencing the properties of oil products, does not contain silicon and other substances which have great influence on a hydrogenation reaction catalyst, and does not influence the properties of petroleum products after being added. The auxiliary agent can effectively eliminate micro bubbles in product oil, has good defoaming and foam inhibiting effects on normal large bubbles in the product, and has the effects of small dosage, high micro bubble eliminating speed, strong adaptability to different oil products and the like.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The microbubble fast-extinguishing aid is characterized by comprising the following components in parts by weight: 10-40 parts of isooctanol, 10-40 parts of polyether, 10-40 parts of diesel oil, 3-6 parts of polycyclic aromatic hydrocarbon and 3-6 parts of mineral oil.
2. The microbubble agent as claimed in claim 1, comprising the following components in parts by weight: 20-35 parts of isooctanol, 15-35 parts of polyether, 15-30 parts of diesel oil, 4-5 parts of polycyclic aromatic hydrocarbon and 4-5 parts of mineral oil.
3. The microbubble agent for aiding the quick elimination of claim 1 or 2, wherein the polyether is at least one of polyoxyethylene ether and polyoxypropylene ether, preferably polyoxyethylene ether.
4. A method for preparing the microbubble agent for quickly extinguishing according to any one of claims 1 to 3, wherein isooctyl alcohol, polycyclic aromatic hydrocarbon, mineral oil, polyether and diesel oil are mixed in proportion to obtain the microbubble agent for quickly extinguishing.
5. The method of claim 4, comprising the steps of: mixing isooctyl alcohol, polycyclic aromatic hydrocarbon and mineral oil, heating, stirring and mixing uniformly, reducing the temperature, adding polyether and diesel oil in sequence, stirring and mixing uniformly again to obtain the microbubble quick-extinguishing aid.
6. The method according to claim 5, wherein the polyether is at least one of polyoxyethylene ether and polyoxypropylene ether, preferably polyoxyethylene ether.
7. The method of claim 6, comprising the steps of: mixing isooctyl alcohol, polycyclic aromatic hydrocarbon and mineral oil, heating to 50-80 ℃, stirring at the speed of 30-60 revolutions per minute, reacting for 2-5 hours, cooling to 20-30 ℃, adding polyoxyethylene ether, stirring for reacting for 5-10 minutes, then adding part of diesel oil, continuing stirring for 1-2 hours, stopping stirring and naturally cooling to room temperature, standing for 2-5 hours, adding the rest diesel oil under stirring, and obtaining a uniform liquid mixture, namely the microbubble fast-extinguishing aid.
8. Use of the microbubble extinguishment aid according to any one of claims 1 to 3 or the microbubble extinguishment aid produced by the production method according to any one of claims 4 to 7 for the elimination of bubbles in petroleum products.
9. The use of claim 8, wherein the microbubble killing agent is used to eliminate bubbles generated by hydrogenation of diesel.
10. The use according to claim 9, wherein the microbubble agent is used in an amount of: the volume fraction is 0.001-0.01%.
CN202210314607.1A 2022-03-28 2022-03-28 Microbubble fast-extinguishing aid and preparation method and application thereof Pending CN114588664A (en)

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