CN101255383B - Highly effective ferrous sulfide deactivation cleaning agent - Google Patents
Highly effective ferrous sulfide deactivation cleaning agent Download PDFInfo
- Publication number
- CN101255383B CN101255383B CN2008100149260A CN200810014926A CN101255383B CN 101255383 B CN101255383 B CN 101255383B CN 2008100149260 A CN2008100149260 A CN 2008100149260A CN 200810014926 A CN200810014926 A CN 200810014926A CN 101255383 B CN101255383 B CN 101255383B
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- CN
- China
- Prior art keywords
- ferrous sulfide
- cleaning agent
- condensate
- highly effective
- inactivating
- 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.)
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- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 title claims abstract description 8
- 239000012459 cleaning agent Substances 0.000 title claims description 7
- 230000009849 deactivation Effects 0.000 title claims description 7
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims abstract description 8
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical group C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 7
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 6
- -1 alkyl phenol Chemical compound 0.000 claims abstract description 4
- LDMOEFOXLIZJOW-UHFFFAOYSA-N 1-dodecanesulfonic acid Chemical compound CCCCCCCCCCCCS(O)(=O)=O LDMOEFOXLIZJOW-UHFFFAOYSA-N 0.000 claims abstract description 3
- KFFQABQEJATQAT-UHFFFAOYSA-N N,N'-dibutylthiourea Chemical compound CCCCNC(=S)NCCCC KFFQABQEJATQAT-UHFFFAOYSA-N 0.000 claims abstract description 3
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical compound CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229940071161 dodecylbenzenesulfonate Drugs 0.000 claims abstract description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims abstract description 3
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000013543 active substance Substances 0.000 claims description 6
- 150000002978 peroxides Chemical class 0.000 claims description 6
- 150000002191 fatty alcohols Chemical class 0.000 claims description 3
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 3
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000000415 inactivating effect Effects 0.000 abstract description 3
- 239000003599 detergent Substances 0.000 abstract 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 abstract 2
- 239000003112 inhibitor Substances 0.000 abstract 2
- 239000004094 surface-active agent Substances 0.000 abstract 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 abstract 1
- 239000004155 Chlorine dioxide Substances 0.000 abstract 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 235000019398 chlorine dioxide Nutrition 0.000 abstract 1
- 238000005504 petroleum refining Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 34
- 229910052742 iron Inorganic materials 0.000 description 17
- 238000002161 passivation Methods 0.000 description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- QKSKPIVNLNLAAV-UHFFFAOYSA-N bis(2-chloroethyl) sulfide Chemical compound ClCCSCCCl QKSKPIVNLNLAAV-UHFFFAOYSA-N 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
A highly efficient inactivating detergent for ferrous sulfide is disclosed, which is characterized by that it comprises 0.1-10% of chlorine dioxide, 0.1-10% of surfactant, 0.1-5% of citric acid, 0.1-5% of EDTA, 0.1-5% of corrosion inhibitor and water. The surfactant is one or more from dodecyl sulphonate, dodecyl benzene sulfonate, condensate of alkyl phenol and epoxyethane and condensate of aliphatic alcohol and epoxyethane. The corrosion inhibitor is urotropine, dibutyl thiourea or alkyl pyridine. Using the inventive inactivating detergent in cleaning petroleum refining apparatus, ferrous can be thoroughly oxygenized, inactivated and sulfated on one aspect, to prevent occurrence of self-ignition accident, oil crust can be totally washed from the apparatus on the other aspect, which makes the invention has characteristics of high efficiency, secure and environmental protective.
Description
Technical field
The present invention relates to a kind of passivation clean-out system that is used to clean sedimentary Iron sulfuret dirt on the petrochemical unit.
Background technology
Particularly in the refinery process of high-sulfur crude oil, can produce a large amount of Iron sulfuret as underpressure distillation, catalytic cracking, hydrocracking, coking, hydrofining, gas delivery or desulfurization etc. at oil, it sticks in the pipeline of oil refining apparatus.A large amount of Iron sulfuret dirt layers accumulates in the production equipment and can have a strong impact on its normal operation and service efficiency, must regularly carry out break-down maintenance to device.In maintenance process, Iron sulfuret runs into air spontaneous combustion initiation fire, explosion hazard very easily takes place again, have a strong impact on the long period safe handling of petrochemical equipment, caused great threat for the safety of petroleum chemical enterprise, therefore, before carrying out turnaround of unit, must thoroughly dispose earlier Iron sulfuret in the device.
At present, Petrochemical Enterprises is cleaned Iron sulfuret with acid, potassium permanganate, alkaline strong oxidizer, hydrogen peroxide or clorox passivation both at home and abroad, though can satisfy petroleum chemical enterprise's requirement of safe production aspect the Iron sulfuret removing, also there are many incomplete aspects in these clean-out systems at equipment anticorrosion, environmental protection and aspect such as safe in utilization.Such as, the present employed potassium permanganate of the many petroleum chemical enterprises of China, though it is easy to use, safe, with low cost, and the passivation cleaning process does not produce the harm of free oxygen, belong to comparatively a kind of ferrous sulfide deactivation cleaning agent of ideal, but passivation is cleaned and still can be contained the further processing of manganese metal ion in the waste liquid inevitably, otherwise easily environment is caused serious harm.Clean with other soda acid, also can produce serious corrosion production equipment.The passivation clean-out system that use contains clorox very easily generates other poisonous and harmful by product (as yperite) in cleaning process, the life security of field worker is caused serious harm.And oxygenant and Iron sulfuret exothermic heat of reaction such as hydrogen peroxide, and can produce a large amount of free oxygen, control the improper accident of will blasting.
Summary of the invention
The purpose of this invention is to provide a kind of is efficient, safety, the environment-friendly type Iron sulfuret liquid phase passivation clean-out system of key ingredient with the dioxide peroxide, and it can overcome the above-mentioned shortcoming of existing ferrous sulfide deactivation cleaning agent effectively.
A kind of highly effective ferrous sulfide deactivation cleaning agent is characterized in that it is made up of 0.1～10% dioxide peroxide, 0.1～10% tensio-active agent, 0.1～5% citric acid, 0.1～5% EDTA, 0.1～5% inhibiter and water.
The present invention is used for the passivation clean-out system cleaning of oil refinery production equipment, on the one hand can exhaustive oxidation passivation Iron sulfuret, prevent the generation of incidents of spontaneous combustion, will wash down fully in the grease slave unit on the other hand, and have characteristics such as efficient, safety, environmental protection.
Embodiment
Ferrous sulfide deactivation cleaning agent of the present invention is made up of 0.1～10% dioxide peroxide, 0.1～10% tensio-active agent, 0.1～5% citric acid, 0.1～5% EDTA, 0.1～5% inhibiter and water.Described percentage composition is each component shared weight percentage in clean-out system.
Tensio-active agent of the present invention is one or more in dodecane sulfonate, dodecylbenzene sulfonate, alkylphenol and ethylene oxide condensate and Fatty Alcohol(C12-C14 and C12-C18) and the ethylene oxide condensate.Described inhibiter is hexamethylenetetramine, dibutyl thiourea or alkyl pyridine.According to the particular case of field device, as the Iron sulfuret dirt that adheres in the device what, smeary residual quantity and other pollution condition etc. can suitably be adjusted the ratio of different components in the prescription.The Iron sulfuret dirt can improve the content of dioxide peroxide in the prescription more for a long time, makes thoroughly passivation inactivation of Iron sulfuret; If greasy dirt is residual more, should uses water vapor washing unit in advance earlier, and suitably increase the content of tensio-active agent, to improve the effect of washing unit; If salt concn or heavy metal ion are higher in the device, can improve the usage quantity of EDTA.
Embodiment
Take by weighing 10.0g Sodium dodecylbenzene sulfonate, 8.0g Fatty Alcohol(C12-C14 and C12-C18) and ethylene oxide condensate and 6.0g alkylphenol and ethylene oxide condensate (OP-10), add 800g water, stirring and dissolving.Take by weighing 10.0g dioxide peroxide powder and add in the above-mentioned solution, stirring and dissolving, control pH value of solution value is at 5.5-6.5.Add 1.0g citric acid, 1.0g EDTA and 1.0g hexamethylenetetramine inhibiter again, stirring and dissolving adds water and complements to 1000g, and continues to be stirred to the solution clear.Get the passivation clean-out system of the above-mentioned preparation of 50g, add 0.5g Iron sulfuret powder (400 order),, regularly measure the iron concentration in the solution in 50 ℃ of water bath heat preservation reactions.As a result, the reaction carry out 6 hours after, the iron concentration in the solution remains unchanged substantially, illustrate Iron sulfuret totally inactivating finish.Above-mentioned surplus products solution 950g is placed 50 ℃ of water-baths, and adding scribbles 0.15g bituminous stainless steel lacing film, places the product vessel bottom, constantly stir with the rotating speed of mechanical stirrer, take out lacing film after two hours, behind the oven drying at low temperature with 50rpm, weigh, measure displacement efficiency.As a result, two hours displacement efficiency reaches 100%.When using pure water, displacement efficiency is 12%.
Claims (1)
1. ferrous sulfide deactivation cleaning agent, it is characterized in that it is by 0.1～10% dioxide peroxide, 0.1～10% tensio-active agent, 0.1～5% citric acid, 0.1～5% EDTA, 0.1～5% inhibiter and water are formed, described percentage composition is each component shared weight percentage in clean-out system, described tensio-active agent is a dodecane sulfonate, dodecylbenzene sulfonate, in alkylphenol and ethylene oxide condensate and Fatty Alcohol(C12-C14 and C12-C18) and the ethylene oxide condensate one or more, described inhibiter are hexamethylenetetramine, dibutyl thiourea or alkyl pyridine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100149260A CN101255383B (en) | 2008-03-27 | 2008-03-27 | Highly effective ferrous sulfide deactivation cleaning agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100149260A CN101255383B (en) | 2008-03-27 | 2008-03-27 | Highly effective ferrous sulfide deactivation cleaning agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101255383A CN101255383A (en) | 2008-09-03 |
| CN101255383B true CN101255383B (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100149260A Active CN101255383B (en) | 2008-03-27 | 2008-03-27 | Highly effective ferrous sulfide deactivation cleaning agent |
Country Status (1)
| Country | Link |
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| CN (1) | CN101255383B (en) |
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| US9050560B2 (en) | 2008-10-14 | 2015-06-09 | Yara International Asa | Method for minimizing the diameter of a urea solution, urea solution and use of a surfactant in urea solution |
| CN101503651B (en) * | 2009-03-10 | 2011-06-29 | 江苏工业学院 | An oily treatment agent for spent petrochemical catalysts |
| CN102373122B (en) * | 2010-08-12 | 2013-04-24 | 中国石油化工股份有限公司 | Inorganic ferrous sulfide passivation abluent |
| CN101988179B (en) * | 2010-10-27 | 2014-02-05 | 中国石油化工股份有限公司 | Gas-phase passivation system for petrochemical device |
| CN102102169A (en) * | 2010-10-27 | 2011-06-22 | 中国石油化工股份有限公司 | Ferrous sulfide gas phase passivation device |
| CN102345136A (en) * | 2011-09-30 | 2012-02-08 | 宁波中一石化科技有限公司 | Chemical cleaning agent for clearing impurities such as ferrous sulfide |
| CN102808183B (en) * | 2012-08-21 | 2014-04-09 | 陕西省石油化工研究设计院 | Corrosion inhibitor for inhibiting chlorine dioxide corrosion and preparation method thereof |
| CN102877079B (en) * | 2012-10-26 | 2014-09-10 | 陈守文 | Ferrous sulfide removal method for petroleum industry pipeline and equipment |
| CN103160322A (en) * | 2013-04-03 | 2013-06-19 | 济南瑞东实业有限公司 | Ferrous sulfide passivator and preparation method thereof |
| CN103194325B (en) * | 2013-04-25 | 2014-09-10 | 甘肃黑马石化工程有限公司 | Ferrous sulfide dirt neutral complexing cleaning agent and preparation method thereof |
| CN103806003A (en) * | 2014-02-24 | 2014-05-21 | 西北大学 | Acidic oil extraction medium corrosion inhibitor |
| CN104263546A (en) * | 2014-10-02 | 2015-01-07 | 济南瑞东实业有限公司 | Efficient pollution-free industrial water-based full cleaning agent and preparation method thereof |
| CN104845672A (en) * | 2015-05-31 | 2015-08-19 | 济南瑞东实业有限公司 | Ferrous sulfide passivator and preparation method thereof |
| CN104831262A (en) * | 2015-05-31 | 2015-08-12 | 济南瑞东实业有限公司 | Efficient active metal passivator and preparation method thereof |
| CN106222675A (en) * | 2016-08-18 | 2016-12-14 | 广州斯特福材料科技有限公司 | A kind of citric acid cleaning passivator and passivating method |
| CN106221806B (en) * | 2016-08-23 | 2018-01-30 | 南京南炼宏泰技术开发有限公司 | Environment-friendly highly efficient ferrous sulfide deactivation agent and preparation method thereof |
| CN107236605A (en) * | 2017-06-23 | 2017-10-10 | 岳阳宇翔科技有限公司 | Regenerating reagent and the method using its cleaning and regeneration filter core |
| CN107557794B (en) * | 2017-09-01 | 2018-06-26 | 南京高威表面技术有限公司 | Circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenitic stainless steel Polythionic acid stress corrosion three-in-one cleaning agent |
| CN109749877B (en) * | 2017-11-01 | 2021-05-11 | 中国石油化工股份有限公司 | Composition for passivating and cleaning ferrous sulfide and application thereof |
| CN109749869B (en) * | 2017-11-01 | 2020-12-18 | 中国石油化工股份有限公司 | Composition for cleaning ferrous sulfide and application thereof |
| CN108611646B (en) * | 2018-05-09 | 2020-06-09 | 北京乐文科技发展有限公司 | Ferrous sulfide cleaning passivator |
| CN119506013A (en) * | 2025-01-16 | 2025-02-25 | 南京高威表面技术有限公司 | A gas-liquid dual-effect passivation deodorant and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477184A (en) * | 2002-08-20 | 2004-02-25 | 上海白猫有限公司 | Disinfectant sterilization washing powder and its production process |
| CN1704465A (en) * | 2004-05-25 | 2005-12-07 | 胡琦 | High performance sterilizing detergent |
| WO2007109150A3 (en) * | 2006-03-17 | 2007-11-08 | Procter & Gamble | Process of bleaching fabric |
-
2008
- 2008-03-27 CN CN2008100149260A patent/CN101255383B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1477184A (en) * | 2002-08-20 | 2004-02-25 | 上海白猫有限公司 | Disinfectant sterilization washing powder and its production process |
| CN1704465A (en) * | 2004-05-25 | 2005-12-07 | 胡琦 | High performance sterilizing detergent |
| WO2007109150A3 (en) * | 2006-03-17 | 2007-11-08 | Procter & Gamble | Process of bleaching fabric |
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| Publication number | Publication date |
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| CN101255383A (en) | 2008-09-03 |
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