CN105482851A - Scale inhibitor for oil refining technology process and preparation method thereof - Google Patents
Scale inhibitor for oil refining technology process and preparation method thereof Download PDFInfo
- Publication number
- CN105482851A CN105482851A CN201610050644.0A CN201610050644A CN105482851A CN 105482851 A CN105482851 A CN 105482851A CN 201610050644 A CN201610050644 A CN 201610050644A CN 105482851 A CN105482851 A CN 105482851A
- Authority
- CN
- China
- Prior art keywords
- scale inhibitors
- refining process
- scale inhibitor
- process according
- several arbitrarily
- 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.)
- Granted
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
Abstract
The invention relates to a scale inhibitor for the oil refining technology process. In order to provide an efficient environment-friendly scale inhibitor which is suitable for various oil refining technologies, the invention provides the scale inhibitor for the oil refining technology process. The scale inhibitor is characterized by being prepared from, by mass, 10%-40% of scattered detergent, 5%-30% of antioxygen, 5%-30% of polymerization inhibitor, 5%-15% of metal-ion passivator, 5%-20% of film-forming agent and 20%-70% of organic solvent, and the scale inhibitor is obtained by compounding all the substances. The scale inhibitor for the oil refining technology process has the advantages that the effect and the adaptability are strong, wherein the scattered detergent can scatter the scale inhibitor in the material, and the scale inhibitor is not prone to stick to and deposit on the surface of equipment; the stability is good, the scale inhibitor can still play a role under the high-temperature conditions such as heavy oil hydrogenation, therefore, polymerization and scaling of a hydrogenation system can be effectively inhibited, and long period operation of a device is guaranteed; elements of sulphur, phosphorus and the like are not contained, toxicity and undesirable odor do not exist, and pollution does not exist in the preparation and use process.
Description
Technical field
The invention belongs to a kind of Scale inhibitors suppressing oil refining process equipment scaling to be formed, particularly a kind of Scale inhibitors for hydrogenation unit and preparation method thereof.
Technical background
In recent years, crude oil in China character heaviness increasingly, in poor quality, riverine, coastal refinery also mixes refining Middle East high-sulfur in a large number, high carbon residue crude oil, simultaneously in order to pursue higher light oil yield, the harshness day by day of device operational condition, working depth improves day by day, very large difficulty is brought to refining of petroleum and petrochemical complex processing, as residual hydrocracking, hydrocracking, gasoline and diesel hydrogenation is refined, crude distillation and heavy oil fluid catalytic cracking, delayed coking, the pipeline of the devices such as cracking ethylene preparation, furnace tubing, the equipment coking scale problems such as interchanger become increasingly conspicuous, make interchanger, process furnace heat exchange efficiency declines, pipeline blocks, have a strong impact on the normal operation of full scale plant, limit the treatment capacity of device, shorten the running period of device, add energy consumption and the maintenance cost of device, the handiness that device is operated is deteriorated, economic benefit is not in full use.Visible, the scale problems of oil processing equipment and pipeline become affect equipment safety, steadily, the large obstacle that runs of long period, full production, study the mitigation and antiscaling technology that can effectively prevent or alleviate fouling and be imminent.
At present, the method solving the burnt dirt of above-mentioned refining equipment mainly contains two kinds, and one is adopt Processes and apparatus method, mainly by increasing utility appliance, improves technical process and operational condition, controls the approach such as stock oil character index and realizes.The method one-time investment is large, and with material change very flexible, investment is longer for return period; Two is adopt chemical process, normally in stock oil, adds a certain amount of chemical assistant, and namely Scale inhibitors suppresses, delays the formation of burnt dirt.The method has advantages such as not changing technical process, do not affect normal running, filling is convenient, fund input is few, return period is short, becomes economy, effectively solves the method for equipment coking and fouling problem, be therefore at home and abroad widely used.
The formation mechenism more complicated of burnt dirt in petroleum refining process, the Raolical polymerizable mainly caused by the heteroatoms such as colloid, bituminous matter condensation, oxygen, sulphur, nitrogen and metal-catalyzed polymerization are reacted, and the corrosion product that causes of high-sulfur and inorganic salt formation of deposits.Therefore, the Scale inhibitors for suppressing refining process fouling to be formed should possess the function such as stronger dispersion cleaning, anti-oxidant, inhibition, passive metal ion and metal surface modification.In addition, also should have good oil soluble, can with processing oil plant Homogeneous phase mixing; Viscosity is little, easily flow, easy to use; Do not decompose at service temperatures, the physico-chemical property such as nontoxic; And can not exert an adverse impact to subsequent machining technology and product property.
The oil refining Scale inhibitors of current industrial application, kind is few, weak effect, narrow application range and the unfriendly elements of environment such as many sulfur-bearings, phosphorus, resistance to elevated temperatures is also poor, easily decomposes when hydroeracking unit etc. is greater than 300 DEG C of operational conditionss, and this has negative impact to the course of processing and catalyzer.Therefore, the focus that a kind of high-efficiency environment friendly Scale inhibitors being applicable to various oil refining process is current Scale inhibitors research and development field is developed.
Summary of the invention
, weak effect few for refining process of current China Scale inhibitors kind, the present situation such as seriously polluted, the invention provides a kind of compound oil refining Scale inhibitors.Product scale inhibition effect of the present invention is good, high temperature resistant, applied widely, is especially applicable to pyrolysis gasoline hydrogenation system, simultaneously the discharge of energy decreasing pollution thing.
The present invention is used for the Scale inhibitors of refining process primarily of compositions such as dispersion clean-out system, oxidation inhibitor, stopper, metallic ion passivation agent and membrane-forming agents, can be achieved through the following technical solutions:
For a Scale inhibitors for refining process, its constituent mass per-cent is:
Preferred constituent mass per-cent is:
Further, described dispersion clean-out system is a kind of or several arbitrarily mixture of PIBA, polyetheramine or maleimide/alpha-olefin copolymer, described PIBA and the molecular weight of polyetheramine are between 800 to 2000, and the molecular weight of maleimide/alpha-olefin copolymer is between 3000 to 20000.Dispersion clean-out system has solubilising, scavenging(action) to Jiao's dirt that equipment surface is formed, and has dissemination to the corrosion product carried secretly in raw material, salt and impurity particle simultaneously, assembles to prevent it, is deposited on equipment surface.
Further, described oxidation inhibitor is N-phenyl-2-naphthylamine, N-phenyl-N '-cyclohexyl Ursol D, N-sec.-propyl-N '-diphenyl-para-phenylene diamine, N-isohexyl-N '-diphenyl-para-phenylene diamine, dialkyl diphenylamine or 4, a kind of or several arbitrarily mixture in 4 '-di-iso-octyldiphenylamine.Oxidation inhibitor can trace oxygen in elimination system, or form inert molecule with oxidized hydrocarbon free radical, stops oxygen initiated polymerization.
Further, described stopper is a kind of or several arbitrarily mixture in 2,2,6,6-tetramethyl--4-hydroxy piperidine nitroxyl free radical (TEMPO), p-ten.-butylcatechol, MEHQ or 2-sec-butyl-4,6-dinitrophenol(DNP).Living radical in the middle of stopper energy Quick Catch system, stops the polymerization of hydrocarbon molecule, reduces the generation of organic deposition.
Further; described metallic ion passivation agent is N; N '-bis-(o-hydroxy methyne) ethanedioyl two hydrazine, diacetyl adipic dihydrazide or N; a kind of or several arbitrarily mixture in N '-bis-[β-(3,5-di-tert-butyl-hydroxy phenyl) propionyl] hydrazine.Metallic ion passivation agent by metal ions such as nickel, iron, cadmium, copper in complexing oil plant, passivation its to the katalysis of unsaturated polymerizable compound, also prevent metallic surface to the katalysis of polyreaction simultaneously.
Further, described membrane-forming agent is a kind of or several arbitrarily mixture had in the imidazolidine derivatives of following structure:
Wherein, the alkyl of R=C6 ~ C19, aryl or its mixture, n=0 ~ 3.Membrane-forming agent can form layer protecting film in equipment surface, reduces the generation of corrosion product, stops incrustation to generate, and keeps the internal surface of e-quipment and pipe bright and clean.
Further, described imidazolidine derivatives is following a kind of or several arbitrarily mixture preferably:
Imidazolidine derivatives A, R=-C
15h
32, n=0;
Imidazolidine derivatives B:R=-C
17h
36, n=2;
Imidazolidine derivatives C:R=-C
17h
34, n=1;
Imidazolidine derivatives D:R=-C
6h
5, n=3.
Further, described organic solvent is a kind of or several arbitrarily mixture in kerosene, diesel oil, toluene, dimethylbenzene or heavy aromatics.
Scale inhibitors of the present invention is obtained by the method that mixing is composite, is about to dispersion clean-out system, oxidation inhibitor, stopper, metallic ion passivation agent and membrane-forming agent, adds in proportion in the middle of organic solvent, heated and stirred, after abundant dissolving mixes, cool to room temperature, filtration gets product.
The application of Scale inhibitors of the present invention is added in the middle of oil plant, and addition is 50 ~ 500ppm of oil plant, preferred 100ppm.
The beneficial effect of Scale inhibitors of the present invention is: 1) compared with existing Scale inhibitors, scale inhibition effect and the adaptability of product of the present invention are stronger, the polymerization fouling such as unsaturated hydrocarbons, colloid, bituminous matter in the oil refining course of processing can be suppressed simultaneously, even if also have part unsaturated compound polymerization reaction take place, wherein dispersion agent can also be distributed in the middle of material, make its not easily adhesion deposition in equipment surface; 2) good stability, still can play a role under the hot conditionss such as heavy-oil hydrogenation, thus effectively can suppress the polymerization fouling of hydrogenation system, the long-term operation of assurance device; 3) the not element such as sulfur-bearing, phosphorus is nontoxic, free from extraneous odour, oil soluble are good, easy to use, its preparation and the equal non-environmental-pollution of use procedure.
Accompanying drawing explanation
Fig. 1 is Scale inhibitors dynamic evaluation testing apparatus in the present invention.
Embodiment
By the following examples technical scheme of the present invention is described further.Technology contents described in the present embodiment is illustrative, instead of determinate, should not limit to protection scope of the present invention according to this.
Embodiment 1
Dispersion clean-out system, oxidation inhibitor, stopper, metallic ion passivation agent and membrane-forming agent are added in the middle of organic solvent in proportion, heated and stirred, fully dissolves after mixing, cool to room temperature, filter and obtain dissimilar Scale inhibitors sample, its effective constituent and mass percentage as shown in table 1:
Table 1
Embodiment 2
For inspection Scale inhibitors result of use of the present invention, carry out the laboratory Static and dynamic hydrogenation evaluation test of Scale inhibitors respectively.
1) static evaluation test
In 100ml autoclave, add 50g blank or add agent stock oil, using nitrogen replacement 3 times after sealing, under 350 DEG C of conditions, heat 10h, then use heptane extracting, oven dry, investigate the scale inhibition effect of Scale inhibitors according to the amount of insolubles, the results are shown in Table 2:
Table 2 static test data
Note: 1) Scale inhibitors adds dosage is 100 μ g/g;
2) scale inhibition performance=(after adding agent, the change/blank gum level of colloid changes) × l00%.
Evaluation result in table 2 shows, the scale inhibition effect of self-made inhibitor No. 6 samples is good compared with other Scale inhibitors, in stock oil, add l00ppm, and scale inhibition performance can reach 84%, is obviously better than commercially available Scale inhibitors VAF-1.
2) dynamic testing evaluation
Adopt traditional heat dirt method (temperature differential method), evaluating apparatus as shown in drawings.Subtract slag and be pumped to reactor after preheating, when experiment starts, because wall is clean, reactor outlet temperature is higher, and along with the carrying out of experiment, reactor wall is incrustation gradually, and temperature out reduces, and produces temperature difference T after device running certain hour with during beginning.According to the Δ T of blank oil sample
emptycalculate scale inhibition performance with the temperature difference T adding agent sample, the results are shown in Table 3:
Table 3 dynamic testing data
Note: 1) Scale inhibitors adds dosage is 100 μ g/g;
2) oil plant is Shengli VR, reactor initial outlet temperature 380 DEG C, experimental period 12h.
The testing data of table 3 shows, the scale inhibition performance of self-made inhibitor No. 6 samples is the highest, conforms to static test result.
Claims (10)
1. for a Scale inhibitors for refining process, it is characterized in that, its constituent mass per-cent is:
2. for a Scale inhibitors for refining process, it is characterized in that, its constituent mass per-cent is:
3. the Scale inhibitors for refining process according to claim 1 and 2, it is characterized in that, described dispersion clean-out system is a kind of or several arbitrarily mixture of PIBA, polyetheramine or maleimide/alpha-olefin copolymer, described PIBA and the molecular weight of polyetheramine are all between 800 to 2000, and the molecular weight of described maleimide/alpha-olefin copolymer is between 3000 to 20000.
4. the Scale inhibitors for refining process according to claim 1 and 2, it is characterized in that, described oxidation inhibitor is N-phenyl-2-naphthylamine, N-phenyl-N '-cyclohexyl Ursol D, N-sec.-propyl-N '-diphenyl-para-phenylene diamine, N-isohexyl-N '-diphenyl-para-phenylene diamine, dialkyl diphenylamine or 4, a kind of or several arbitrarily mixture in 4 '-di-iso-octyldiphenylamine.
5. the Scale inhibitors for refining process according to claim 1 and 2, it is characterized in that, described stopper is 2,2,6, a kind of or several arbitrarily mixture in 6-tetramethyl--4-hydroxy piperidine nitroxyl free radical, p-ten.-butylcatechol, MEHQ or 2-sec-butyl-4,6-dinitrophenol(DNP).
6. the Scale inhibitors for refining process according to claim 1 and 2; it is characterized in that; described metallic ion passivation agent is N; N '-bis-(o-hydroxy methyne) ethanedioyl two hydrazine, diacetyl adipic dihydrazide or N; a kind of or several arbitrarily mixture in N '-bis-[β-(3,5-di-tert-butyl-hydroxy phenyl) propionyl] hydrazine.
7. the Scale inhibitors for refining process according to claim 1 and 2, is characterized in that, described membrane-forming agent is a kind of or several arbitrarily mixture had in the imidazolidine derivatives of following structure,
Wherein, the alkyl of R=C6 ~ C19, aryl or its mixture, n=0 ~ 3.
8. the Scale inhibitors for refining process according to claim 7, is characterized in that, described imidazolidine derivatives is a kind of of the compound with following structure or mixtures several arbitrarily,
Imidazolidine derivatives A:R=-C
15h
32, n=0;
Imidazolidine derivatives B:R=-C
17h
36, n=2;
Imidazolidine derivatives C:R=-C
17h
34, n=1;
Imidazolidine derivatives D:R=-C
6h
5, n=3.
9. the Scale inhibitors for refining process according to claim 1 and 2, is characterized in that, described organic solvent is a kind of or several arbitrarily mixture in kerosene, diesel oil, toluene, dimethylbenzene or heavy aromatics.
10. the preparation method for refining process's Scale inhibitors, it is characterized in that, dispersion clean-out system, oxidation inhibitor, stopper, metallic ion passivation agent and membrane-forming agent are added in proportion in organic solvent, heated and stirred mixes to fully dissolving, then cold filtration and obtaining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050644.0A CN105482851B (en) | 2016-01-25 | 2016-01-25 | It is a kind of for antisludging agent of refining process and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050644.0A CN105482851B (en) | 2016-01-25 | 2016-01-25 | It is a kind of for antisludging agent of refining process and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105482851A true CN105482851A (en) | 2016-04-13 |
| CN105482851B CN105482851B (en) | 2017-11-07 |
Family
ID=55670134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610050644.0A Active CN105482851B (en) | 2016-01-25 | 2016-01-25 | It is a kind of for antisludging agent of refining process and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105482851B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107987888A (en) * | 2017-11-24 | 2018-05-04 | 浙江杭化科技股份有限公司 | A kind of high temperature resistant high vacuum antisludging agent for refining equipment |
| CN108034455A (en) * | 2018-01-24 | 2018-05-15 | 合肥铭佑高温技术有限公司 | A kind of high-temperature service anti-coking agent and preparation method |
| CN108165295A (en) * | 2018-01-10 | 2018-06-15 | 广昌达新材料技术服务（深圳）股份有限公司 | A kind of liquid for oil refining process delayed coking increases income agent |
| CN108441253A (en) * | 2018-01-23 | 2018-08-24 | 中海油天津化工研究设计院有限公司 | A kind of antisludging agent for coker gasoline pipeline |
| CN110205161A (en) * | 2019-06-11 | 2019-09-06 | 黄河三角洲京博化工研究院有限公司 | A kind of high temperature resistant slurry fouling inhibitor |
| CN110452786A (en) * | 2019-08-07 | 2019-11-15 | 南京汇达化工有限公司 | Add hydrogen antiscale agent prescription and its production method |
| CN112680243A (en) * | 2020-12-09 | 2021-04-20 | 金澳科技（湖北）化工有限公司 | Method for preventing settler from coking |
| CN114133952A (en) * | 2020-09-08 | 2022-03-04 | 北京赛福贝特能源技术服务有限公司 | Ammonium salt dispersant for refinery fractionation device, preparation method and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003006581A2 (en) * | 2001-07-13 | 2003-01-23 | Exxon Mobile And Engineering Company | Method for inhibiting corrosion using certain phosphorus and sulfur-free aromatic compounds |
| JP2005213369A (en) * | 2004-01-29 | 2005-08-11 | Hakuto Co Ltd | Fouling prevention agent and fouling prevention method |
| CN101497810A (en) * | 2009-02-24 | 2009-08-05 | 沧州鑫泰精细化工厂 | Catalytic cracking multifunctional strengthened additive |
| 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 |
| CN102732290A (en) * | 2011-04-08 | 2012-10-17 | 新疆独山子天利实业总公司 | Anti-yellowing processing method for long-placed solvent naphtha |
| 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 |
| CN104845673A (en) * | 2015-04-29 | 2015-08-19 | 洋浦中溢化工有限公司 | Scale inhibitor suitable for S Zorb gasoline desulfurizer as well as preparation method and application of scale inhibitor |
-
2016
- 2016-01-25 CN CN201610050644.0A patent/CN105482851B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003006581A2 (en) * | 2001-07-13 | 2003-01-23 | Exxon Mobile And Engineering Company | Method for inhibiting corrosion using certain phosphorus and sulfur-free aromatic compounds |
| JP2005213369A (en) * | 2004-01-29 | 2005-08-11 | Hakuto Co Ltd | Fouling prevention agent and fouling prevention method |
| CN101497810A (en) * | 2009-02-24 | 2009-08-05 | 沧州鑫泰精细化工厂 | Catalytic cracking multifunctional strengthened additive |
| 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 |
| CN102732290A (en) * | 2011-04-08 | 2012-10-17 | 新疆独山子天利实业总公司 | Anti-yellowing processing method for long-placed solvent naphtha |
| 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 |
| CN104845673A (en) * | 2015-04-29 | 2015-08-19 | 洋浦中溢化工有限公司 | Scale inhibitor suitable for S Zorb gasoline desulfurizer as well as preparation method and application of scale inhibitor |
Non-Patent Citations (2)
| Title |
|---|
| 中国工程塑料工业协会加工应用专委会 等: "《2003年塑料助剂和塑料加工应用技术研讨会论文集》", 30 November 2003 * |
| 金属离子钝化剂;中国工程塑料工业协会加工应用专委会 等;《2003年塑料助剂和塑料加工应用技术研讨会论文集》;20031130;第89-92页 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107987888A (en) * | 2017-11-24 | 2018-05-04 | 浙江杭化科技股份有限公司 | A kind of high temperature resistant high vacuum antisludging agent for refining equipment |
| CN107987888B (en) * | 2017-11-24 | 2020-07-07 | 浙江杭化科技股份有限公司 | High-temperature-resistant high-vacuum scale inhibitor for oil refining equipment |
| CN108165295A (en) * | 2018-01-10 | 2018-06-15 | 广昌达新材料技术服务（深圳）股份有限公司 | A kind of liquid for oil refining process delayed coking increases income agent |
| CN108165295B (en) * | 2018-01-10 | 2020-08-14 | 广昌达新材料技术服务（深圳）股份有限公司 | Liquid yield increasing agent for delayed coking in oil refining process |
| CN108441253A (en) * | 2018-01-23 | 2018-08-24 | 中海油天津化工研究设计院有限公司 | A kind of antisludging agent for coker gasoline pipeline |
| CN108034455A (en) * | 2018-01-24 | 2018-05-15 | 合肥铭佑高温技术有限公司 | A kind of high-temperature service anti-coking agent and preparation method |
| CN110205161A (en) * | 2019-06-11 | 2019-09-06 | 黄河三角洲京博化工研究院有限公司 | A kind of high temperature resistant slurry fouling inhibitor |
| CN110205161B (en) * | 2019-06-11 | 2021-05-07 | 山东益丰生化环保股份有限公司 | High-temperature-resistant oil slurry scale inhibitor |
| CN110452786A (en) * | 2019-08-07 | 2019-11-15 | 南京汇达化工有限公司 | Add hydrogen antiscale agent prescription and its production method |
| CN114133952A (en) * | 2020-09-08 | 2022-03-04 | 北京赛福贝特能源技术服务有限公司 | Ammonium salt dispersant for refinery fractionation device, preparation method and application thereof |
| CN112680243A (en) * | 2020-12-09 | 2021-04-20 | 金澳科技（湖北）化工有限公司 | Method for preventing settler from coking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105482851B (en) | 2017-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105482851A (en) | Scale inhibitor for oil refining technology process and preparation method thereof | |
| JP2012500300A (en) | Polyalkylsuccinic acid derivatives as additives for soil reduction in oil refining processes | |
| CN101899327B (en) | Anti-coking agent for high-temperature equipment and preparation and application thereof | |
| CN107177379A (en) | One kind hydrogenation antisludging agent and preparation method thereof | |
| CN102245743B (en) | Addition of high molecular weight naphthenic tetra-acids to crude oils to reduce whole crude oil fouling | |
| CN102382682B (en) | Hydrogenation scale and corrosion inhibitor and application of scale and corrosion inhibitor | |
| CN110205161B (en) | High-temperature-resistant oil slurry scale inhibitor | |
| CN108165295A (en) | A kind of liquid for oil refining process delayed coking increases income agent | |
| CN101265418B (en) | Anti-scaling agent used for hydrogenation plant and its preparation method and application | |
| Watkinson et al. | A critical review of organic fluid fouling | |
| CA3186764A1 (en) | Phosphorous-free oil soluble molybdenum complexes as high temperature fouling inhibitors | |
| CN111378506B (en) | Scale inhibitor and preparation method thereof | |
| CN108441253A (en) | A kind of antisludging agent for coker gasoline pipeline | |
| WO2017127988A1 (en) | Scale inhibitor for oil refining technology process and preparation method therefor | |
| JP2012500299A (en) | Metal sulfonate additives for soil reduction in petroleum refinery processes | |
| CN106518770A (en) | Preparation method of novel water soluble and non-salt soluble imidazoline corrosion inhibitor and application | |
| CN101318872B (en) | Ethylene cracking furnace coking restrainer and its use method | |
| CN101654628B (en) | Scale and corrosion inhibitor used for hydrogenation device and synthesis method thereof | |
| CN101265414B (en) | Oil soluble coke cleaning agent and preparation thereof | |
| CN1189545C (en) | Anti-Coking agent, its preparation and application | |
| CA3140130C (en) | Antifoulant formulation and applications thereof | |
| JPWO2015022979A1 (en) | Methods for preventing contamination of heat exchangers in petroleum processes. | |
| Jin et al. | Generation of H2S by crude fractions at high temperature | |
| CN110791321B (en) | Coal tar hydrogenation scale inhibitor and preparation method thereof | |
| CN100338191C (en) | Anti-coking agent, and its preparation and use method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 518000 Guangdong city of Shenzhen province Baoan District manhole Street sand village Ditang road Lantian Science Park tenth building, first floor Applicant after: Shenzhen Guangchangda Petroleum Additive Co., Ltd. Applicant after: Guangchang Daxin material technology service (Shenzhen) Limited by Share Ltd Address before: 518000 Guangdong city of Shenzhen province Baoan District manhole Street sand village Ditang road Lantian Science Park tenth building, first floor Applicant before: Shenzhen Guangchangda Petroleum Additive Co., Ltd. Applicant before: Shenzhen City Guangchangda Industrial Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yan Bin Inventor after: Mao Yuli Inventor after: Liu Ying Inventor after: Ye Shichun Inventor after: Xiong Jing Inventor before: Yan Bin Inventor before: Liu Ying Inventor before: Ye Shichun Inventor before: Xiong Jing |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |