CN104263408A - Environment-friendly composite ferrous sulfide passivator and preparation method thereof - Google Patents
Environment-friendly composite ferrous sulfide passivator and preparation method thereof Download PDFInfo
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- CN104263408A CN104263408A CN201410518237.9A CN201410518237A CN104263408A CN 104263408 A CN104263408 A CN 104263408A CN 201410518237 A CN201410518237 A CN 201410518237A CN 104263408 A CN104263408 A CN 104263408A
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- ferrous sulfide
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- 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
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- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an environment-friendly composite ferrous sulfide passivator which is composed of the following components in percentage by mass: 5-10% of sodium pyrosulfate, 10-25% of sodium hypochlorite, 1-10% of trisodium phosphate, 0.5-7% of sodium hydrogen carbonate, 20-35% of sodium hydroxide, 1-2% of potassium ferrate and 30-60% of water; and the environment-friendly composite ferrous sulfide passivator is prepared by uniformly mixing the components according to a specific step order. The environment-friendly composite ferrous sulfide passivator disclosed by the invention is efficient, is free of toxicity, corrosive property and secondary pollution and is capable of quickly passivating ferrous sulfide and effectively preventing spontaneous combustion of ferrous sulfide; the passivator has a good cleaning effect on such malodorant as hydrogen sulfide, ferrous sulfide passivation time is 8-10h and more than 98% of ferrous sulfide is removed, and shutdown time of a device is correspondingly shortened; and a protective film is formed on the surface of passivated metal, so as to effectively prevent metal surface from being further corroded.
Description
Technical field
The present invention relates to the agent of a kind of environment-friendly composite ferrous sulfide deactivation, be specifically related to one and can play passivation to Iron sulfuret fast, effectively prevent Iron sulfuret spontaneous combustion, and to malodorants such as hydrogen sulfide, there is the agent of better cleanup action environment-friendly composite ferrous sulfide deactivation.
Background technology
Due to oil refining enterprise process the existence of sulphur in crude oil, inevitably in corresponding equipment and pipeline, produce Iron sulfuret, and along with sulphur content more and more higher, the plant running cycle is more and more longer, cause on equipment inner member and pipeline and accumulated the easy spontaneous combustible substances such as a large amount of Iron sulfurets, due to inadequate to the characteristic understanding of the easy spontaneous combustion of Iron sulfuret in the past when stopping work, often there is the thing burning out equipment because of Iron sulfuret spontaneous combustion, serious financial loss and potential safety hazard is caused to enterprise, the refinery workshop of such as certain group company subordinate is when overhauling, because Iron sulfuret spontaneous combustion causes the filler of 64m3 to be scrapped, and main equipment is also subject to damage in various degree, direct economic loss reaches more than 120 ten thousand yuan, after reboiler fuse is extracted out when overhauling by another workshop of the said firm in the same year, Iron sulfuret spontaneous combustion occurs causes reboiler to be scrapped, nearly 600,000 yuan of direct economic loss, accident declaration display over the years, part refinery is had to cause equipment damage in various degree when break-down maintenance because of Iron sulfuret spontaneous combustion every year, direct economic loss is all quite huge.The environmental protection that Domestic Petrochemical Enterprises causes because of the maladorous gas contamination such as hydrogen sulfide, mercaptan and Iron sulfuret spontaneous combustion, security incident happen occasionally, and have had a strong impact on the survival and development of enterprise, affect the physical and mental health of the masses.
How to prevent Iron sulfuret spontaneous combustion, prevent hydrogen sulfide odor pollution, the personnel in guarantee refinery turnaround of unit process, the safety of equipment are extremely important.Therefore, need solve a technical problem is to provide a kind of environmental protection, compound ferrous sulfide deactivation agent can play passivation to Iron sulfuret rapidly, effectively prevent Iron sulfuret spontaneous combustion, the malodorants such as hydrogen sulfide are had to the passivator of better cleanup action simultaneously.
Summary of the invention
In order to overcome the shortcoming of currently available technology, the object of the present invention is to provide a kind of environmental protection, compound ferrous sulfide deactivation agent, this passivator can play passivation to Iron sulfuret rapidly, effectively prevent Iron sulfuret spontaneous combustion, to malodorants such as hydrogen sulfide, there is better cleanup action simultaneously, this passivator has the features such as collection oxidation, absorption, flocculation, precipitation, sterilizing, sterilization, decolouring, deodorizing, protection against corrosion simultaneously, significantly increase security when equipment runs, increase the economic return of enterprise.
For achieving the above object, the present invention is by the following technical solutions: the agent of a kind of environment-friendly composite ferrous sulfide deactivation, is made up of in mass ratio following component: 5 ~ 10% sodium pyrosulfates, 10 ~ 25% clorox, 1 ~ 10% tertiary sodium phosphate, 0.5 ~ 7% sodium bicarbonate, 20 ~ 35% sodium hydroxide, 1 ~ 2% potassium ferrate, 30 ~ 60% water.
A preparation method for ferrous sulfide deactivation agent, sequential system obtains in accordance with the following steps:
A, according to mass ratio: 5 ~ 10% sodium pyrosulfates, 10 ~ 25% clorox, 1 ~ 10% tertiary sodium phosphate, 0.5 ~ 7% sodium bicarbonate, 20 ~ 35% sodium hydroxide, 1 ~ 2% potassium ferrate, that 30 ~ 60% water take starting material is stand-by;
B, adds taken sodium hydroxide in taken water, is configured to sodium hydroxide solution after fully dissolving;
Taken sodium bicarbonate and clorox slowly add in the obtained solution of step B by C successively, and control its temperature of reaction and be less than 60 DEG C;
Taken sodium pyrosulfate, tertiary sodium phosphate, potassium ferrate slowly add in the obtained solution of step C by D successively, fully stir, make its pH value be 10 ~ 13, obtained ferrous sulfide deactivation agent.
Compared with prior art, the present invention has following beneficial effect:
1, the component that the present invention is used is inorganic component, soluble in water, stable in properties;
2, the present invention is efficient, nontoxic, corrosion-free, does not have secondary pollution, has passivation fast to Iron sulfuret, can effectively prevent Iron sulfuret spontaneous combustion; To malodorants such as hydrogen sulfide, there is good cleanup action;
3, using method of the present invention is simple, without the need to doing large technique adjustment, the existing basis of device changes a little;
4, use product of the present invention, make the ferrous sulfide deactivation time be 8 ~ 10 hours, Iron sulfuret more than 98% can be removed, the corresponding stoppage time shortening device;
5, the metallic surface after passivation can form protective membrane, effectively prevents the further corrosion of metallic surface;
6, the mixed solution after passivator process can directly discharge, and can not impact sewage farm.
For the present invention will be further described, enumerate embodiment and embodiment below.
Embodiment
The agent of a kind of environment-friendly composite ferrous sulfide deactivation, is made up of in mass ratio following component: 5 ~ 10% sodium pyrosulfates, 10 ~ 25% clorox, 1 ~ 10% tertiary sodium phosphate, 0.5 ~ 7% sodium bicarbonate, 20 ~ 35% sodium hydroxide, 1 ~ 2% potassium ferrate, 30 ~ 60% water.
A preparation method for ferrous sulfide deactivation agent, sequential system obtains in accordance with the following steps:
A, according to mass ratio: 5 ~ 10% sodium pyrosulfates, 10 ~ 25% clorox, 1 ~ 10% tertiary sodium phosphate, 0.5 ~ 7% sodium bicarbonate, 20 ~ 35% sodium hydroxide, 1 ~ 2% potassium ferrate, that 30 ~ 60% water take starting material is stand-by;
B, adds taken sodium hydroxide in taken water, is configured to sodium hydroxide solution after fully dissolving;
Taken sodium bicarbonate and clorox slowly add in the obtained solution of step B by C successively, and control its temperature of reaction and be less than 60 DEG C;
Taken sodium pyrosulfate, tertiary sodium phosphate, potassium ferrate slowly add in the obtained solution of step C by D successively, fully stir, make its pH value be 10 ~ 13, obtained ferrous sulfide deactivation agent.
Embodiment: a kind of preparation method of ferrous sulfide deactivation agent, sequential system obtains in accordance with the following steps:
A, according to mass ratio: 7% sodium pyrosulfate, 15% clorox, 3% tertiary sodium phosphate, 5% sodium bicarbonate, 25% sodium hydroxide, 1.5% potassium ferrate, that 38.5% water takes starting material is stand-by;
B, adds taken sodium hydroxide in taken water, is configured to sodium hydroxide solution after fully dissolving;
Taken sodium bicarbonate and clorox slowly add in the obtained solution of step B by C successively, and control its temperature of reaction and be less than 60 DEG C;
Taken sodium pyrosulfate, tertiary sodium phosphate, potassium ferrate slowly add in the obtained solution of step C by D successively, fully stir, make its pH value be 10 ~ 13, put to normal temperature and obtain ferrous sulfide deactivation agent.
Obviously, above-mentioned embodiment is only better embodiment of the present invention, and any simple modifications on this basis, all belongs to protection scope of the present invention.
Claims (2)
1. an environment-friendly composite ferrous sulfide deactivation agent, is characterized in that: be made up of in mass ratio following component: 5 ~ 10% sodium pyrosulfates, 10 ~ 25% clorox, 1 ~ 10% tertiary sodium phosphate, 0.5 ~ 7% sodium bicarbonate, 20 ~ 35% sodium hydroxide, 1 ~ 2% potassium ferrate, 30 ~ 60% water.
2. a preparation method for ferrous sulfide deactivation agent, is characterized in that sequential system obtains in accordance with the following steps:
A, according to mass ratio: 5 ~ 10% sodium pyrosulfates, 10 ~ 25% clorox, 1 ~ 10% tertiary sodium phosphate, 0.5 ~ 7% sodium bicarbonate, 20 ~ 35% sodium hydroxide, 1 ~ 2% potassium ferrate, that 30 ~ 60% water take starting material is stand-by;
B, adds taken sodium hydroxide in taken water, is configured to sodium hydroxide solution after fully dissolving;
Taken sodium bicarbonate and clorox slowly add in the obtained solution of step B by C successively, and control its temperature of reaction and be less than 60 DEG C;
Taken sodium pyrosulfate, tertiary sodium phosphate, potassium ferrate slowly add in the obtained solution of step C by D successively, fully stir, make its pH value be 10 ~ 13, obtained ferrous sulfide deactivation agent.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104804766A (en) * | 2015-05-07 | 2015-07-29 | 武汉佳益化工有限公司 | Ferrous sulfide vapor phase passivation method |
| CN105903339A (en) * | 2016-06-24 | 2016-08-31 | 深圳市龙澄高科技环保有限公司 | Potassium ferrate aqueous solution, and preparation method and application thereof |
| CN106221806A (en) * | 2016-08-23 | 2016-12-14 | 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 |
| CN107557794A (en) * | 2017-09-01 | 2018-01-09 | 南京高威表面技术有限公司 | Circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, the three-in-one cleaning agent of anti-austenitic stainless steel Polythionic acid stress corrosion |
| CN107699311A (en) * | 2017-10-09 | 2018-02-16 | 煤科集团沈阳研究院有限公司 | Pyritic sulfur scavenger and preparation method in a kind of environment-friendly coal |
| CN110042019A (en) * | 2019-04-18 | 2019-07-23 | 西安石油大学 | A kind of passivation deodorant cleaning agent and its application method suitable for sulfur Gas Fields |
| CN114427098A (en) * | 2020-10-10 | 2022-05-03 | 中国石油化工股份有限公司 | Cleaning agent for high-sulfur natural gas purification device |
| CN115637174A (en) * | 2021-07-19 | 2023-01-24 | 中国石油天然气股份有限公司 | Composite ferrous sulfide passivator and preparation method thereof |
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| CN103789777A (en) * | 2014-01-10 | 2014-05-14 | 辽宁石油化工大学 | Preparation method for composite ferric sulfide cleaning agent |
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| US6547959B1 (en) * | 2000-09-19 | 2003-04-15 | United Laboratories International, Llc | Method for treating hazardous and corrosion-inducing sulfur compounds |
| CN102373122A (en) * | 2010-08-12 | 2012-03-14 | 中国石油化工股份有限公司 | Inorganic ferrous sulfide passivation abluent |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104804766A (en) * | 2015-05-07 | 2015-07-29 | 武汉佳益化工有限公司 | Ferrous sulfide vapor phase passivation method |
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| CN105903339A (en) * | 2016-06-24 | 2016-08-31 | 深圳市龙澄高科技环保有限公司 | Potassium ferrate aqueous solution, and preparation method and application thereof |
| CN106221806A (en) * | 2016-08-23 | 2016-12-14 | 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 |
| 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 |
| CN107557794A (en) * | 2017-09-01 | 2018-01-09 | 南京高威表面技术有限公司 | Circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, the three-in-one cleaning agent of anti-austenitic stainless steel Polythionic acid stress corrosion |
| 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 |
| CN107699311A (en) * | 2017-10-09 | 2018-02-16 | 煤科集团沈阳研究院有限公司 | Pyritic sulfur scavenger and preparation method in a kind of environment-friendly coal |
| CN110042019A (en) * | 2019-04-18 | 2019-07-23 | 西安石油大学 | A kind of passivation deodorant cleaning agent and its application method suitable for sulfur Gas Fields |
| CN114427098A (en) * | 2020-10-10 | 2022-05-03 | 中国石油化工股份有限公司 | Cleaning agent for high-sulfur natural gas purification device |
| CN115637174A (en) * | 2021-07-19 | 2023-01-24 | 中国石油天然气股份有限公司 | Composite ferrous sulfide passivator and preparation method thereof |
| CN115637174B (en) * | 2021-07-19 | 2024-03-26 | 中国石油天然气股份有限公司 | Composite ferrous sulfide passivating agent and preparation method thereof |
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Application publication date: 20150107 |