CN110205161B - High-temperature-resistant oil slurry scale inhibitor - Google Patents
High-temperature-resistant oil slurry scale inhibitor Download PDFInfo
- Publication number
- CN110205161B CN110205161B CN201910504574.5A CN201910504574A CN110205161B CN 110205161 B CN110205161 B CN 110205161B CN 201910504574 A CN201910504574 A CN 201910504574A CN 110205161 B CN110205161 B CN 110205161B
- Authority
- CN
- China
- Prior art keywords
- oil slurry
- scale inhibitor
- temperature
- antioxidant
- maleic anhydride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING 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
- C10G75/00—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general
- C10G75/04—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general by addition of antifouling agents
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention belongs to the technical field of petrochemical industry, and particularly relates to a high-temperature-resistant oil slurry scale inhibitor. The oil slurry antisludging agent is mainly used for preventing the scaling of an oil slurry system and the bottom of a fractionating tower. The composite material comprises the following components in percentage by mass: 10-35% of detergent dispersant, 0.1-5% of amine antioxidant, 0.1-5% of hydrogen-donor antioxidant, 0.1-2% of metal deactivator and the balance of solvent. The oil slurry scale inhibitor disclosed by the invention is good in high temperature resistance and still has good oxidation resistance at 370-420 ℃. The detergent dispersant contains no sulfur and phosphorus and has good scale inhibiting and cleaning effects. The condensation point is low (less than or equal to-20 ℃), and the storage tank does not need to be insulated in winter. When the filling amount of the oil slurry scale inhibitor is 30-200 ppm, the problem of pressure drop increase caused by coking at the bottom of the fractionating tower and the problem of blockage caused by scaling of an oil slurry heat exchanger, a pipeline and the like can be effectively inhibited, the long-period operation of the device is guaranteed, and the economic benefit is greater.
Description
Technical Field
The invention relates to the field of petrochemical industry, and in particular relates to a high-temperature-resistant oil slurry scale inhibitor
Background
With the heavy raw oil property of the catalytic device and the more and more rigorous processing conditions, coking and oil slurry system scaling problems occur on tower plates at the bottom of a fractionating tower in the FCC devices of some refineries, so that a series of problems of frequent cleaning of a heat exchanger, increase of oil slurry circulation, reduction of steam yield and the like are caused. After the research, several solutions are proposed at home and abroad, including improving the property of raw materials, reducing the processing severity, increasing the external throwing amount of the oil slurry and the like. Different methods can be selected according to specific conditions during the processing of the common device, but generally, the methods are difficult to implement and high in cost, and the oil slurry scale inhibitor is low in cost, simple and easy to operate and widely applied. At present, for refineries with harsh processing conditions, foreign brands of slurry oil scale inhibitors are generally adopted, the scale inhibitors are expensive, the specific use effect is not obvious, and aiming at the situation, the invention develops the high-temperature slurry oil scale inhibitor from the research of the scaling mechanism of a slurry oil system so as to be suitable for being used under the harsh processing conditions.
The existing oil slurry scale inhibitor usually contains clean dispersants of sulfur phosphorus and metals, the oil slurry scale inhibitor is applied to a catalytic cracking system, the sulfur phosphorus and metal clean dispersants can increase the sulfur phosphorus and metal content in catalytic cracking products in the using process and influence the service life of a catalytic cracking catalyst, and the existing oil slurry scale inhibitor is not high-temperature resistant. The invention autonomously synthesizes a clean dispersant without sulfur, phosphorus and metal, and the clean dispersant is compounded with an amine antioxidant, a hydrogen-donor antioxidant and a metal deactivator to obtain the oil slurry scale inhibitor.
Disclosure of Invention
Aiming at the defects of the prior oil slurry scale inhibitor, the invention provides a high-temperature-resistant oil slurry scale inhibitor which can resist high temperature, does not contain clean dispersing agents of sulfur, phosphorus and metal, and has good dispersing effect on asphaltene and catalyst powder in oil slurry. The long-term use of the oil slurry antisludging agent can effectively inhibit the scaling of a fractionating tower tray and reduce the cleaning times of an oil slurry system, in particular to a heat exchanger part.
The technical scheme of the invention is as follows:
the composite material comprises the following components in percentage by mass: 10-35% of detergent dispersant, 0.1-5% of hydrogen-donating antioxidant, 0.1-5% of amine antioxidant, 0.1-2% of metal deactivator and the balance of solvent.
The detergent dispersant is one or a mixture of polyisobutylene maleic anhydride and a polyisobutylene maleic anhydride derivative.
Preferably, the detergent dispersant is a compound of polyisobutylene maleic anhydride and a polyisobutylene maleic anhydride derivative, and the mass ratio of the polyisobutylene maleic anhydride to the polyisobutylene maleic anhydride derivative is 0.5-1.5: 1. the detergent dispersant mainly aims at the asphaltene in the oil slurry, and the polyisobutylene maleic anhydride derivative have good effect on the dispersibility of the asphaltene, and the dispersant can be compounded and used in a proper proportion according to different properties of the oil slurry, so that the dispersing effect can be improved.
Preferably, the molecular weight of the polyisobutylene maleic anhydride is 20000-100000, and macromolecular polar substances in the oil slurry can be effectively dispersed.
Preferably, the polyisobutylene maleic anhydride derivative is one of mono-and di-pendent succinimides.
Preferably, the hydrogen-donating antioxidant is a high-temperature-resistant hydrogen-donating antioxidant. Can provide hydrogen atoms under high temperature environment, and can effectively inhibit condensation reaction of polycyclic aromatic hydrocarbon.
Preferably, the hydrogen-donating antioxidant is a cycloalkyl aromatic hydrocarbon, such as benzyl alcohol, tetrahydronaphthalene, tetralone, decahydronaphthalene, and the like.
Preferably, the metal deactivator is one of benzotriazole and thiadiazole. The metal passivator can form chelate with elements such as iron and the like on the surface layer of the oil slurry pipeline, so that the catalytic action of the metal on oxidation and condensation reactions is inhibited.
Preferably, the amine-type antioxidant is one of 4, 4-diisooctyldiphenylamine, N-di-sec-butyl-p-phenylenediamine, styryl-octyldiphenylamine and didodecyldiphenylamine, and the amine-type antioxidant can inhibit oxidation reaction caused by oxygen in the oil slurry.
Preferably, the solvent is one or two mixtures of aromatic oil and diesel oil. The solvent can better disperse the effective components in the oil slurry scale inhibitor into the oil slurry.
Preferably, the addition amount of the slurry scale inhibitor in the catalytic cracking slurry oil system is 30-200 ppm.
The oil slurry scale inhibitor has the effects of scale inhibition and scale removal, when more scales exist in an oil slurry system, the early-stage filling amount is about 30-100 ppm, the problem of blockage caused by more scales falling in a tower tray of a fractionating tower is solved, the middle-stage adding amount is 100-200 ppm, the scales in the oil slurry system can be well removed, the later-stage stable adding amount is about 30-50 pm, the scale inhibition effect is good, and the long-period operation of a device is maintained.
The invention provides a high-temperature resistant oil slurry scale inhibitor which is mainly prepared by compounding a detergent dispersant, an amine antioxidant, a hydrogen-donor antioxidant, a metal deactivator and the like, wherein the detergent dispersant plays a role in dispersing colloid, asphaltene and catalyst powder in oil slurry without depositing on a pipeline for scaling; the hydrogen-supplying antioxidant can provide hydrogen atoms in a high-temperature environment, and can effectively inhibit condensation reaction of polycyclic aromatic hydrocarbon; the amine antioxidant can inhibit oxidation reaction caused by oxygen in oil slurry; the metal passivator can form chelate with elements such as iron and the like on the surface layer of the oil slurry pipeline, so that the catalytic action of the metal on oxidation and condensation reactions is inhibited. The invention firstly proposes that the amine antioxidant and the hydrogen-supplying antioxidant are used as the antioxidants, and the two antioxidants are combined for use, so that the hydrogen-supplying antioxidant has good high-temperature stability and can effectively inhibit condensation and dehydrogenation reactions; the compound of the polyisobutylene maleic anhydride and the polyisobutylene maleic anhydride derivative is used as a cleaning dispersant, so that the dispersing effect is improved; the compound of the polyisobutylene maleic anhydride and the polyisobutylene maleic anhydride derivative is used as a cleaning dispersant, the amine antioxidant and the hydrogen supply antioxidant are used simultaneously, and the scale inhibitor prepared by compounding with the metal passivator can resist high temperature, has a high dispersing effect on asphaltene and catalyst powder in oil slurry, can effectively inhibit coking and scaling of a fractionating tower tray, and has a good scale cleaning effect.
The invention relates to a high-temperature resistant oil slurry scale inhibitor, which is prepared by the following steps: firstly, heating a solvent to 40-60 ℃, then sequentially adding the rest components in proportion, and stirring for 30min at 40-60 ℃ to obtain the high-temperature oil slurry scale inhibitor.
The invention provides a high-temperature-resistant oil slurry scale inhibitor, which synthesizes a clean dispersing agent without sulfur, phosphorus and metal and has good dispersing effect on asphaltene and catalyst powder in oil slurry. The long-term use of the oil slurry antisludging agent can effectively inhibit the scaling of a fractionating tower tray and reduce the cleaning times of an oil slurry system, in particular to a heat exchanger part. The scale inhibitor provided by the invention plays an important role in preventing coking at the bottom of a fractionating tower of a catalytic cracking unit and scaling of an oil slurry system and removing oil slurry scaling.
The oil slurry scale inhibitor disclosed by the invention is good in high temperature resistance and still has good oxidation resistance at 370-420 ℃. The detergent dispersant contains no sulfur and phosphorus and has good scale inhibiting and cleaning effects. The condensation point is low (less than or equal to-20 ℃), and the storage tank does not need to be insulated in winter. When the filling amount of the oil slurry scale inhibitor is 30-200 ppm, the problem of pressure drop increase caused by coking at the bottom of the fractionating tower and the problem of blockage caused by scaling of an oil slurry heat exchanger, a pipeline and the like can be effectively inhibited, the long-period operation of the device is guaranteed, and the economic benefit is greater.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention, and the molecular weight of the adopted polyisobutylene maleic anhydride is 20000-100000.
Example 1
A high-temperature oil slurry scale inhibitor comprises the following components in percentage by mass: 7 percent of polyisobutylene maleic anhydride (cleaning dispersant), 13 percent of bis-succinimide (cleaning dispersant), 0.1 percent of 4, 4-diisooctyl diphenylamine (amine antioxidant), 5 percent of decalin (hydrogen-donating antioxidant), 2 percent of methyl benzotriazole (metal deactivator) and the balance of S150 aromatic oil solvent. The preparation method comprises the following steps: firstly, heating a solvent to 40-60 ℃, then sequentially adding the rest components in proportion, and stirring for 30min at 40-60 ℃ to obtain the high-temperature oil slurry scale inhibitor.
Example 2
A high-temperature oil slurry scale inhibitor comprises the following components in percentage by mass: 15% of polyisobutylene maleic anhydride (cleaning dispersant), 15% of bis-succinimide (cleaning dispersant), 2% of didodecyl diphenylamine (amine antioxidant), 2% of tetrahydronaphthalene (hydrogen-donating antioxidant), 1% of methyl benzotriazole (metal deactivator) and the balance of diesel oil. The preparation method comprises the following steps: firstly, heating a solvent to 40-60 ℃, then sequentially adding the rest components in proportion, and stirring at 40-60 ℃ for 35min to obtain the high-temperature oil slurry scale inhibitor.
Example 3
A high-temperature oil slurry scale inhibitor comprises the following components in percentage by mass: 20% of polyisobutylene maleic anhydride (cleaning dispersant), 15% of mono-pendent succinimide (cleaning dispersant), 5% of styryl octyl diphenylamine (amine antioxidant), 0.1% of benzyl alcohol (hydrogen-donating antioxidant), 0.1% of thiadiazole (metal deactivator), and the balance of S150 aromatic oil solvent. The preparation method comprises the following steps: firstly, heating a solvent to 40-60 ℃, then sequentially adding the rest components in proportion, and stirring at 40-60 ℃ for 25min to obtain the high-temperature oil slurry scale inhibitor.
Example 4
A high-temperature oil slurry scale inhibitor comprises the following components in percentage by mass: 5% of polyisobutylene maleic anhydride (cleaning dispersant), 5% of bis-succinimide (cleaning dispersant), 1% of N, N-di-sec-butyl p-phenylenediamine (amine antioxidant), 1% of tetralone (hydrogen-donating antioxidant), 0.3% of thiadiazole (metal deactivator), and the balance of S150 aromatic oil solvent. The preparation method comprises the following steps: firstly, heating a solvent to 40-60 ℃, then sequentially adding the rest components in proportion, and stirring at 40-60 ℃ for 40min to obtain the high-temperature oil slurry scale inhibitor.
Comparative example 1
A high-temperature oil slurry scale inhibitor comprises the following components in percentage by mass: 12 percent of polyisobutylene maleic anhydride (detergent dispersant), 8 percent of mono-pendent succinimide (detergent dispersant), 0.5 percent of N, N-di-sec-butyl-p-phenylenediamine (amine antioxidant), 0.5 percent of 2, 6-di-tert-butyl-p-cresol (phenol antioxidant), 0.1 percent of methyl benzene triazole (metal deactivator), and the balance of diesel oil. The preparation method comprises the following steps: firstly, heating the solvent to 40-60 ℃, then sequentially adding the rest components in proportion, and stirring for 30min at 40-60 ℃ to obtain the oil slurry scale inhibitor.
Comparative example 2
A high-temperature oil slurry scale inhibitor comprises the following components in percentage by mass: 15% of sodium dodecyl benzene sulfonate (cleaning dispersant), 20% of T154 (cleaning dispersant), 2% of didodecyl diphenylamine (amine antioxidant), 1% of methylbenzotriazole (metal deactivator) and the balance of S150 aromatic oil solvent. The preparation method comprises the following steps: firstly, heating the solvent to 40-60 ℃, then sequentially adding the rest components in proportion, and stirring for 30min at 40-60 ℃ to obtain the oil slurry scale inhibitor.
Evaluation of Scale inhibitor Effect
The stainless steel pipe is used as a slurry flow pipe, an electric heating furnace is used for heating the steel pipe during an experiment, the slurry flowing through the steel pipe can be heated to a certain temperature, the slurry temperature of the experiment is 425 ℃, the addition of a slurry scale inhibitor is 200ppm, the scaling condition of the slurry is evaluated by measuring the temperature of the slurry in the pipe in the experiment process, the slurry and gas are sampled, and the antioxidant effect is evaluated by analyzing the change of asphaltene in the slurry and the generation amount of hydrogen in the gas. The lower the asphaltene content and the lower the hydrogen content in the gas, the better the scale inhibition effect. The results of the experiment are shown in table 1.
Table 1: evaluation experiment result of oil slurry scale inhibitor
| Item | Scale inhibition Rate (%) | Asphaltene content (%) | Hydrogen content (%) |
| Blank test | -- | 18.32 | 16.85 |
| Example 1 | 92.84 | 7.12 | 4.37 |
| Example 2 | 98.43 | 5.78 | 2.01 |
| Example 3 | 91.64 | 7.21 | 6.15 |
| Example 4 | 88.72 | 7.18 | 4.74 |
| Comparative example 1 | 85.19 | 9.85 | 8.47 |
| Comparative example 2 | 67.29 | 12.83 | 11.54 |
In examples 1 to 4 and comparative examples 1 to 2, it is apparent from table 1 that the scale inhibition rate of the examples is higher than that of the comparative examples, the asphaltene content is lower, the hydrogen content is lower, and the effects are more obvious when the examples are compared with the blank test. In comparative example 1, no hydrogen-donating antioxidant was used, and two antioxidants, namely an amine antioxidant and a phenol antioxidant, were used in combination, and in comparative example 1, the hydrogen and asphaltene contents were significantly higher and the scale inhibition rate was lower than in the examples. In comparative example 2, the conventional detergent dispersant is used, the antioxidant is only amine antioxidant, the scale inhibition effect is obviously inferior to that of the example, the scale inhibition rate in the comparative example 2 is obviously lower than that of the example, and the contents of asphaltene and hydrogen are higher than that of the example. Compared with the comparative example 2, the scale inhibition effect of the comparative example 1 is better than that of the comparative example 2 by using the polyisobutylene maleic anhydride and polyisobutylene maleic anhydride derivative compound as the cleaning dispersant in the comparative example 1 and using the conventional cleaning dispersant in the comparative example 2. The result proves that the high-temperature-resistant slurry oil scale inhibitor provided by the invention uses the compound of the polyisobutylene maleic anhydride and the polyisobutylene maleic anhydride derivative as the cleaning dispersant, uses the hydrogen supply type antioxidant and the amine type antioxidant to be compounded with the metal passivator, has good scale inhibition effect, and plays an important role in preventing coking at the bottom of a fractionating tower of a catalytic cracking unit and scaling of a slurry oil system.
Adopt the stainless steel pipe as the oil slurry flow pipe, use the electric heating furnace to heat the steel pipe during the experiment, the oil slurry flows through the steel pipe and will be heated to the uniform temperature, this experiment oil slurry temperature is 425 ℃, the oil slurry antisludging agent addition is 200ppm, the scale deposit condition of oil slurry is appraised through survey intraductal oil slurry temperature in the experimentation, and sample the oil slurry, the ash content change through the analysis oil slurry shows the effect of cleaning the dirt, the ash content increases in the oil slurry shows to have the effect of cleaning the dirt, the ash content increase rate is bigger, the scale cleaning effect, its concrete principle is that the oil slurry antisludging agent will be settled the dirt on the pipeline, make the ash content in the oil slurry increase, the ash content increase rate is big, it is more to show the dirt that clears away, the scale cleaning effect is better. The results of the experiment are shown in table 2.
Table 2: evaluation scale cleaning experimental result of oil slurry scale inhibitor
| Item | Ash increase (%) |
| Blank test | -- |
| Example 1 | 9.66 |
| Example 2 | 16.38 |
| Example 3 | 20.41 |
| Example 4 | 8.59 |
| Comparative example 2 | 5.45 |
The comparative example 2 is a component of a conventional scale inhibitor, and compared with the comparative example 2, the ash content increase rate in the example of the invention is obviously higher than that in the comparative example 2, and the experimental result proves that the high-temperature-resistant oil slurry scale inhibitor oil provided by the invention has an obvious scale cleaning effect, but the scale cleaning effect of the conventional scale inhibitor is small or even no scale cleaning effect.
The evaluation effect of the scale inhibitor shows that the high-temperature-resistant oil slurry scale inhibitor provided by the invention has better high-temperature resistance, and not only has a very good scale inhibition effect, but also has an obvious scale cleaning effect. The device can effectively inhibit coking at the bottom of the fractionating tower and scaling of the oil slurry system, can effectively remove coking at the bottom of the fractionating tower and scaling of the oil slurry system, provides guarantee for long-period operation of the device, and has great economic benefit.
Claims (6)
1. The high-temperature-resistant oil slurry scale inhibitor is characterized by comprising the following components in parts by mass: 10-35% of detergent dispersant, 0.1-5% of hydrogen-donating antioxidant, 0.1-5% of amine antioxidant, 0.1-2% of metal deactivator and the balance of solvent;
the detergent dispersant is a compound of polyisobutylene maleic anhydride and a polyisobutylene maleic anhydride derivative, and the mass ratio of the polyisobutylene maleic anhydride to the polyisobutylene maleic anhydride derivative is 0.5-1.5: 1;
the molecular weight of the polyisobutylene maleic anhydride is 20000-100000;
the hydrogen-supplying antioxidant is a high-temperature-resistant hydrogen-supplying antioxidant.
2. The high-temperature-resistant oil slurry scale inhibitor as claimed in claim 1, wherein the polyisobutylene maleic anhydride derivative is one of mono-hanging succinimide and di-hanging succinimide.
3. The high-temperature-resistant oil slurry scale inhibitor as claimed in claim 1, wherein the high-temperature-resistant hydrogen-supplying antioxidant is naphthenic aromatic hydrocarbon.
4. The high-temperature-resistant oil slurry scale inhibitor as claimed in claim 1, wherein the metal deactivator is one of benzotriazole and thiadiazole.
5. The high temperature resistant slurry scale inhibitor according to claim 1, wherein the amine antioxidant is one of 4, 4-diisooctyldiphenylamine, N-di-sec-butyl-p-phenylenediamine, styryl-octyldiphenylamine and didodecyldiphenylamine.
6. The high-temperature-resistant oil slurry scale inhibitor as claimed in claim 1, wherein the solvent is one or a mixture of aromatic oil and diesel oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910504574.5A CN110205161B (en) | 2019-06-11 | 2019-06-11 | High-temperature-resistant oil slurry scale inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910504574.5A CN110205161B (en) | 2019-06-11 | 2019-06-11 | High-temperature-resistant oil slurry scale inhibitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110205161A CN110205161A (en) | 2019-09-06 |
| CN110205161B true CN110205161B (en) | 2021-05-07 |
Family
ID=67792118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910504574.5A Active CN110205161B (en) | 2019-06-11 | 2019-06-11 | High-temperature-resistant oil slurry scale inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110205161B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699117B (en) * | 2019-11-04 | 2021-03-30 | 山东益丰生化环保股份有限公司 | Multifunctional oil slurry scale inhibitor and preparation method thereof |
| CN111925825B (en) * | 2020-07-28 | 2022-10-04 | 广东粤首新科技有限公司 | Scale inhibition and dispersion agent and preparation method and application thereof |
| CN113666512A (en) * | 2021-09-18 | 2021-11-19 | 天津市瑞德赛恩新材料开发有限公司 | Anti-coking scale inhibitor for sewage stripping tower and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071061A (en) * | 2010-12-22 | 2011-05-25 | 浙江杭化科技有限公司 | Scale inhibitor used in cracked gasoline hydrogenation system |
| CN103351888A (en) * | 2013-06-25 | 2013-10-16 | 黄河三角洲京博化工研究院有限公司 | Oil slurry scale inhibitor |
| CN103666563A (en) * | 2012-09-26 | 2014-03-26 | 中国石油化工股份有限公司 | Antiscale composition and application thereof |
| CN105482851A (en) * | 2016-01-25 | 2016-04-13 | 深圳市广昌达石油添加剂有限公司 | Scale inhibitor for oil refining technology process and preparation method thereof |
| CN109504440A (en) * | 2018-11-15 | 2019-03-22 | 江苏科创石化有限公司 | A kind of slurry fouling inhibitor |
-
2019
- 2019-06-11 CN CN201910504574.5A patent/CN110205161B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071061A (en) * | 2010-12-22 | 2011-05-25 | 浙江杭化科技有限公司 | Scale inhibitor used in cracked gasoline hydrogenation system |
| CN103666563A (en) * | 2012-09-26 | 2014-03-26 | 中国石油化工股份有限公司 | Antiscale composition and application thereof |
| CN103351888A (en) * | 2013-06-25 | 2013-10-16 | 黄河三角洲京博化工研究院有限公司 | Oil slurry scale inhibitor |
| CN105482851A (en) * | 2016-01-25 | 2016-04-13 | 深圳市广昌达石油添加剂有限公司 | Scale inhibitor for oil refining technology process and preparation method thereof |
| CN109504440A (en) * | 2018-11-15 | 2019-03-22 | 江苏科创石化有限公司 | A kind of slurry fouling inhibitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110205161A (en) | 2019-09-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110205161B (en) | High-temperature-resistant oil slurry scale inhibitor | |
| CN107177379B (en) | Hydrogenation scale inhibitor and preparation method thereof | |
| US4619756A (en) | Method to inhibit deposit formation | |
| CN103305192B (en) | A kind of High-temperature heat transfer oil composition | |
| EP2859069B1 (en) | Method and apparatus for treating petroleum equipment | |
| WO1995020637A2 (en) | Hydrocarbon oil-aqueous fuel and additive compositions | |
| CN105482851A (en) | Scale inhibitor for oil refining technology process and preparation method thereof | |
| IL126985A (en) | Fuel additives | |
| CN108165295B (en) | Liquid yield increasing agent for delayed coking in oil refining process | |
| CN101974348A (en) | Scale inhibitor for catalytic cracking slurry system | |
| US4744881A (en) | Antioxidant material and its use | |
| US5330970A (en) | Composition and method for inhibiting coke formation and deposition during pyrolytic hydrocarbon processing | |
| US4378288A (en) | Coking process by addition of free radical inhibitors | |
| CN111378506B (en) | Scale inhibitor and preparation method thereof | |
| CN107973757B (en) | Bis-benzotriazole derivative, preparation method thereof, transformer insulating oil complexing agent and transformer insulating oil | |
| CN111020595B (en) | Corrosion inhibitor for cracking gas compressor of ethylene device | |
| US4556326A (en) | Method for testing and treating stored fuel | |
| US2484257A (en) | Stabilization of organic substances | |
| CN108441253A (en) | A kind of antisludging agent for coker gasoline pipeline | |
| CA2322047A1 (en) | Mitigating fouling and reducing viscosity | |
| WO2017127988A1 (en) | Scale inhibitor for oil refining technology process and preparation method therefor | |
| CN106479555A (en) | A kind of delayed coking anti-coking agent and preparation method thereof | |
| CN110387262A (en) | A kind of FCC Slurry Antifoulant and preparation method thereof | |
| PL180515B1 (en) | Method of reducing carbon deposit building up on heat exchange surfaces | |
| CN102533312A (en) | Auxiliary capable of increasing clean oil yield and used for catalytic cracking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200717 Address after: 256500 Boxing Economic Development Zone, Binzhou, Shandong Applicant after: SHANDONG EFIRM BIOCHEMISTRY AND ENVIRONMENTAL PROTECTION Co.,Ltd. Address before: 256500 Boxing Economic Development Zone, Binzhou, Shandong Applicant before: CHAMBROAD CHEMICAL INDUSTRY RESEARCH INSTITUTE Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 256500 Boxing Economic Development Zone, Shandong, Binzhou Patentee after: Yifeng New Material Co.,Ltd. Address before: 256500 Boxing Economic Development Zone, Shandong, Binzhou Patentee before: SHANDONG EFIRM BIOCHEMISTRY AND ENVIRONMENTAL PROTECTION Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230417 Address after: 256500 Boxing Economic Development Zone, Shandong, Binzhou Patentee after: SHANDONG JINGBO ZHONGCHENG CLEAN ENERGY CO.,LTD. Address before: 256500 Boxing Economic Development Zone, Shandong, Binzhou Patentee before: Yifeng New Material Co.,Ltd. |