CN108706843A - A kind of processing method of tank bottom oil sludge - Google Patents
A kind of processing method of tank bottom oil sludge Download PDFInfo
- Publication number
- CN108706843A CN108706843A CN201810511685.4A CN201810511685A CN108706843A CN 108706843 A CN108706843 A CN 108706843A CN 201810511685 A CN201810511685 A CN 201810511685A CN 108706843 A CN108706843 A CN 108706843A
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- greasy filth
- reaction
- processing method
- tank bottom
- oil sludge
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention proposes a kind of processing method of tank bottom oil sludge, includes the following steps：Step 1: being carried out to greasy filth plus water is sized mixing processing, greasy filth solid content is made to reach 4-15%；Step 2: sodium hydroxide solution, which is added, adjusts pH to 7.5-9；Step 3: nonionic surfactant is added and carries out high-speed stirred；Precipitation separation is carried out Step 4: being pumped into settling tank.The processing method of tank bottom oil sludge proposed by the present invention, reaction condition is simple, operation facility, demulsifier, surfactant and soda lye wash technology are combined by specific reaction sequence and reaction condition, realize the quick separating of greasy filth, de-oiling rate is up to 95% or more, reduces pollution of the greasy filth to environment.
Description
Technical field
The present invention relates to a kind of processing methods of tank bottom oil sludge.
Background technology
To oily sludge carry out minimizing processing be always home and abroad environment protection and oil play circle focus and
One of difficult point.So far, domestic and international oily sludge Chemical treatment method is roughly divided into surfactant elution oil removing, breaks
Compounding oil removing between emulsion breaking milk and removing oil, soda lye wash oil removing, flocculant flocculation deoiling and medicament.
Demulsifier can be such that the liquid structure of emulsifying destroys, and be come with achieving the purpose that respectively to be separated in emulsion；Surface
Activating agent can reduce the tension of liquid-liquid interface, and with hydrophilic and oleophilic double grading and special absorption property to make oil from dirt
It is removed in mud；And under alkaline condition, the oil in sludge can react with OH-, become the aliphatic acid for being dissolved in water and glycerine.But
The de-oiling speed of those methods is slow and de-oiling rate is not high.
Invention content
To solve the above problems, the present invention proposes a kind of processing method of tank bottom oil sludge, the quick separating of greasy filth is realized,
Reduce pollution of the greasy filth to environment.
The present invention proposes a kind of processing method of tank bottom oil sludge, includes the following steps：
Step 1: being carried out to greasy filth plus water is sized mixing processing, greasy filth solid content is set to reach 4-15%, described sizing mixing is handled in level-one
It is completed inside reactor, demulsifier is added according to the additive amount of 80-140mg/L with metering pump while to greasy filth plus water, adjusts
The rotating speed of first-stage reactor is that 500-1200r/min is stirred reaction, and reaction temperature is 40-70 DEG C, reaction time 20-
60min obtains greasy filth slurry.
Sodium hydroxide solution is added Step 2: the greasy filth of step 1 slurry is transferred in second reactor, adjust pH to
7.5-9, reaction temperature are 20-60 DEG C, reaction time 10-30min, and the rotating speed for adjusting second reactor is 300-800r/min
It is completed to reaction.
Step 3: the material that step 2 reaction is completed is transferred in third-stage reactor, it is added into third-stage reactor non-
Ionic surface active agent, the rotating speed for adjusting third-stage reactor are that 1200-1800r/min carries out high-speed stirred reaction, reaction temperature
It is 30-55 DEG C, reaction time 0.5-24h.The purpose of high-speed stirred is to make nonionic surfactant as possible by external force
It is come into full contact in molecular level with material.
Step 4：The material that step 3 reaction is completed is pumped into settling tank and carries out precipitation separation, it is different according to greasy filth property,
Disengaging time is 0.5-10h.
After precipitation, three phase separation is had effectively achieved, oil float, can be directly by oil reservoir from tank top in tank top
It takes away and enters petroleum tank or oil refining apparatus, be then water and mud below oil reservoir, the muddy water of bottommost is pumped directly into next by pump
Workshop section is handled.
In one or more embodiments of the invention, the demulsifier is AFTN series crude oil demulsifiers.
In embodiments of the invention one or more, the AFTN series crude oil demulsifiers be AFTN2020,
One or both of AFTN2025, AFTN204010 or a variety of.
In embodiments of the invention one or more, the nonionic surfactant be nonylphenol polyoxyethylene ether,
One or both of Triton X-100, octadecanol polyoxyethylene polyoxypropylene block type ether are a variety of.
The superiority of the present invention is embodied in：The processing method of tank bottom oil sludge proposed by the present invention, reaction condition is simple, operation
It is convenient, demulsifier, surfactant and soda lye wash technology are combined by specific reaction sequence and reaction condition, realized
The quick separating of greasy filth, de-oiling rate are up to 95% or more, reduce pollution of the greasy filth to environment.In addition, I and II reactor
Oil slick is recyclable to be recycled.
Specific implementation mode
It is as follows, it is further elaborated in conjunction with specific embodiments：
Embodiment one：
A kind of processing method of tank bottom oil sludge, certain existing oil field tank bottom oil sludge solid content 14%, oil content 17%, moisture content 69% are right
The oil field tank bottom oil sludge is handled, and is included the following steps：
Step 1: being carried out to greasy filth plus water is sized mixing processing, described sizing mixing is handled to be completed inside first-stage reactor, according to greasy filth
The ratio of slurry and greasy filth cake is adjusted amount of water, while sizing mixing according to the addition water of solid content 8%, and add water to greasy filth
The demulsifier of model AFTN204010 in AFTN series crude oil demulsifiers is added according to the additive amount of 100mg/L with metering pump,
The rotating speed for adjusting first-stage reactor is that 900r/min is stirred reaction, and reaction temperature is 50 DEG C, and reaction time 30min is obtained
It is starched to greasy filth.
Sodium hydroxide solution is added Step 2: the greasy filth slurry of step 1 is transferred in second reactor, adjusts pH to 8,
Reaction temperature be 40 DEG C, reaction time 10min, adjust second reactor rotating speed be 500r/min to react complete.
Step 3: the material that step 2 reaction is completed is transferred in third-stage reactor, it is added into third-stage reactor non-
Ionic surface active agent nonylphenol polyoxyethylene ether, the rotating speed for adjusting third-stage reactor are that 1500r/min progress high-speed stirred is anti-
It answers, reaction temperature is 40 DEG C, reaction time 2h.The purpose of high-speed stirred is to make non-ionic surface active as possible by external force
Agent and material are come into full contact in molecular level.
Above-mentioned material transfer operation can be carried out by pipeline unicom reactor transfer or from reactor remove after transport to
Next reactor.
Step 4：The material that step 3 reaction is completed is pumped into settling tank and carries out precipitation separation, it is different according to greasy filth property,
Disengaging time is 2h.After precipitation, the resid amount of bottommost greasy filth is 4.2 ‰, and de-oiling rate is carried up to 97.5% for subsequent processing
Convenience is supplied.
It is that above-mentioned preferred embodiment should be regarded as application scheme embodiment for example, all with application scheme thunder
Technology deduction, replacement, improvement etc. same, approximate or make based on this, are regarded as the protection domain of this patent.
Claims (4)
1. a kind of processing method of tank bottom oil sludge, which is characterized in that include the following steps：
Step 1: being carried out to greasy filth plus water is sized mixing processing, greasy filth solid content is set to reach 4-15%, described sizing mixing is handled in level-one
It is completed inside reactor, demulsifier is added according to the additive amount of 80-140mg/L with metering pump while to greasy filth plus water, adjusts
The rotating speed of first-stage reactor is that 500-1200r/min is stirred reaction, and reaction temperature is 40-70 DEG C, reaction time 20-
60min obtains greasy filth slurry；
Sodium hydroxide solution is added Step 2: the greasy filth slurry of step 1 is transferred in second reactor, adjusts pH to 7.5-9,
Reaction temperature is 20-60 DEG C, reaction time 10-30min, adjusts the rotating speed of second reactor as 300-800r/min to reaction
It completes；
Step 3: the material that step 2 reaction is completed is transferred in third-stage reactor, nonionic is added into third-stage reactor
Surfactant, the rotating speed for adjusting third-stage reactor are that 1200-1800r/min carries out high-speed stirred reaction, reaction temperature 30-
55 DEG C, reaction time 0.5-24h；
Step 4: the material that step 3 reaction is completed, which is pumped into settling tank, carries out precipitation separation, separation different according to greasy filth property
Time is 0.5-10h.
2. the processing method of tank bottom oil sludge according to claim 1, which is characterized in that the demulsifier is that AFTN series is former
Oily demulsifier.
3. the processing method of tank bottom oil sludge according to claim 2, which is characterized in that the AFTN series crude oil demulsifications
Agent is one or both of AFTN2020, AFTN2025, AFTN204010 or a variety of.
4. the processing method of tank bottom oil sludge according to claim 1, which is characterized in that the nonionic surfactant
For one in nonylphenol polyoxyethylene ether, Triton X-100, octadecanol polyoxyethylene polyoxypropylene block type ether
Kind or two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810511685.4A CN108706843A (en) | 2018-05-25 | 2018-05-25 | A kind of processing method of tank bottom oil sludge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810511685.4A CN108706843A (en) | 2018-05-25 | 2018-05-25 | A kind of processing method of tank bottom oil sludge |
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| Publication Number | Publication Date |
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| CN108706843A true CN108706843A (en) | 2018-10-26 |
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| CN201810511685.4A Pending CN108706843A (en) | 2018-05-25 | 2018-05-25 | A kind of processing method of tank bottom oil sludge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721219A (en) * | 2019-01-16 | 2019-05-07 | 西安华盛坤泰能源环保科技有限公司 | The processing method and system of oil-base mud are discarded in a kind of drilling well |
| CN111234854A (en) * | 2019-11-28 | 2020-06-05 | 青岛市农业科学研究院 | Treatment method of oil sludge at bottom of crude oil storage tank |
| CN111847811A (en) * | 2019-04-25 | 2020-10-30 | 中国科学院生态环境研究中心 | Oil field tank bottom oil sludge treatment method |
| JP7010525B1 (en) | 2021-06-14 | 2022-01-26 | 日本エコシステム株式会社 | Crude oil sludge treatment agent, crude oil sludge treatment method, and crude oil sludge treatment agent kit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721219A (en) * | 2019-01-16 | 2019-05-07 | 西安华盛坤泰能源环保科技有限公司 | The processing method and system of oil-base mud are discarded in a kind of drilling well |
| CN111847811A (en) * | 2019-04-25 | 2020-10-30 | 中国科学院生态环境研究中心 | Oil field tank bottom oil sludge treatment method |
| CN111847811B (en) * | 2019-04-25 | 2022-12-23 | 中国科学院生态环境研究中心 | Oil field tank bottom oil sludge treatment method |
| CN111234854A (en) * | 2019-11-28 | 2020-06-05 | 青岛市农业科学研究院 | Treatment method of oil sludge at bottom of crude oil storage tank |
| JP7010525B1 (en) | 2021-06-14 | 2022-01-26 | 日本エコシステム株式会社 | Crude oil sludge treatment agent, crude oil sludge treatment method, and crude oil sludge treatment agent kit |
| JP2022190279A (en) * | 2021-06-14 | 2022-12-26 | 日本エコシステム株式会社 | Treatment agent for crude oil sludge, method for treating crude oil sludge, and treatment agent kit for crude oil sludge |
| US11618703B2 (en) | 2021-06-14 | 2023-04-04 | Japan Ecosystem Co., Ltd. | Crude oil sludge treatment agent, crude oil sludge treatment method and crude oil sludge treatment agent kit |
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