CN109504427A - The method and system of sump oil purification processing - Google Patents
The method and system of sump oil purification processing Download PDFInfo
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- CN109504427A CN109504427A CN201710824911.XA CN201710824911A CN109504427A CN 109504427 A CN109504427 A CN 109504427A CN 201710824911 A CN201710824911 A CN 201710824911A CN 109504427 A CN109504427 A CN 109504427A
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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
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
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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
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/02—Dewatering or demulsification of hydrocarbon oils with electrical or magnetic means
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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
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/04—Dewatering or demulsification of hydrocarbon oils with chemical means
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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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
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- General Chemical & Material Sciences (AREA)
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- Removal Of Floating Material (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention relates to petrochemical industry sump oil process fields, disclose the method and system of sump oil purification processing.Sump oil purification processing method the following steps are included: (1) in fiber film contactor, by containing surfactant aqueous solution and sump oil contact, obtain mixed phase；Wherein, the fiber film contactor includes cylinder, and the cylinder is filled with fiber filament；(2) obtained mixed phase is subjected in gun barrel standing sedimentation, is purified oil.This method and system can effectively remove solid impurity and water in sump oil, the oil after purified treatment can direct freshening, and return period is short.
Description
Technical field
The present invention relates to petrochemical industry sump oil process fields, and in particular to the method and system of sump oil purification processing.
Background technique
In oil extraction and refining process, it will usually carry out separation and clear to the oil product of oily wastewater and tank bottom
Reason, finally recycles obtained mink cell focus and is referred to as sump oil.Such oil product complicated component, oil removing exceptionally, also contain silt, organic dirt
Mud, surface reactive material and water etc. have solid impurity and water content high, emulsify the features such as serious.Sump oil is routed directly to fill
Refining is put back into, coking, equipment corrosion and the danger such as device is unstable is will lead to, therefore needs to carry out purified treatment before dirty oil recycling.So
And the purified treatment of sump oil is extremely difficult, conventional means are difficult to reach freshening requirement, cause and largely weigh in many refineries
The phenomenon that matter sump oil accumulates, it is incident be the increase of production cost and oil product accumulate and caused by security risk.Cause
This, carries out purified treatment to sump oil, reaches freshening requirement, have good economic and social benefit.
Removing of the sump oil purification processing mainly to solid impurity in sump oil and water.Solid impurity in sump oil is mainly mud
Husky, metal oxide or insoluble metallic salt etc..Although these solid impurities are not soluble in water, containing a large amount of in its chemical composition
Hydrophilic radical, the ion such as the great amount of hydroxy group in silt component, in the main component oxygen atom and metal salt of metal oxide
Key.The presence of hydrophilic radical determines that these solid impurities have certain hydrophily, however, in actual conditions, the oily phase of sump oil
It is almost that solid impurity is fully wrapped around, or even be immersed in solid interior duct, and cause solid impurity and be difficult and separation of oil.
In addition, the moisture in sump oil is scattered in oily phase due to the presence of surface reactive material, emulsified state is formed.Grease emulsifies
It is difficult not only to will cause water removing afterwards, enhances the compatibility of solid hydrophilic impurity and sump oil, be separated by solid-liquid separation it is difficult into
One step increases.
Currently, the method for sump oil purification processing mainly has following three kinds.
The first is exactly to heat static sedimentation, and the method that refinery mainly uses at present.The method implements the most
Simply, but long there are return period, steam consumption quantity is big, and takes off the disadvantages such as solid, dehydration rate is low, for example, CN103820142B is public
Opened the static sedimentation of heating, even if but waste oil treatment agent is added, heat sink drop reaches 24 hours, and water content is still higher than in sump oil
4 weight %, and de- solid effect is also not obvious.
Second is three phase separation technology.Although oil, mud separation may be implemented in the technology, but still have in the oily phase recycled
A large amount of emulsified waters, and smaller solid removal is not obvious.
The third is a kind of sump oil purification processing method of ultrasonic technology and rising in recent years, for example,
CN105776704A, which is disclosed, handles sump oil by this method, dirty oil dewatering rate can be made to be greater than 90 weight %, but in sump oil
The removing of solid impurity, effect are not obvious.
Return period of the existing technology is long, and the de- problem solid, dehydration rate is low, ineffective of sump oil limits sump oil
The industrial application of purified treatment.
Summary of the invention
The purpose of the invention is to overcome the above problem of the existing technology, provide sump oil purification processing method and
System, this method and system can effectively remove solid impurity and water in sump oil, and the sump oil after purified treatment can be returned directly
Refining, and return period is short.
To achieve the goals above, first aspect present invention provides a kind of method of sump oil purification processing, this method packet
Include following steps:
(1) in fiber film contactor, by containing surfactant aqueous solution and sump oil contact, mixed
Phase；
Wherein, the fiber film contactor includes cylinder, and the cylinder is filled with fiber filament；
(2) obtained mixed phase is subjected in gun barrel standing sedimentation, is purified oil.
Preferably, in step (1), the surfactant is amphoteric surfactant.
Preferably, the surfactant be selected from amino acid amphoteric surfactant, beet alkali ampholytic surface active agent and
At least one of imidazoline amophoteric surface active agent.
Preferably, the surfactant is selected from laurel dipropionic acid sodium, lauryl betaine and laurel imidazole acid
At least one of hyamine.
Preferably, the fiber filament is hydrophilic fibre silk.
Preferably, it is fine to be selected from stainless steel wire, carbon steel wire, glass fiber, Fypro silk and polyester for the fiber filament
Tie up at least one of silk.
Second aspect of the present invention provides a kind of system of sump oil purification processing, including fiber film contactor and grease point
From tank, wherein fiber film contactor is used to contain in the aqueous solution and sump oil and fiber film contactor of surfactant
Fiber filament contacts with each other, and obtains mixed phase, wherein the fiber film contactor includes cylinder, and the cylinder is filled with
The fiber filament；
Gun barrel is connected with fiber film contactor, for the mixed phase to be carried out standing sedimentation, obtains net
Carburetion.
The present invention pass through inside the cylinder of fiber film contactor load hydrophilic fibre silk, on the one hand, when oil and
When water mixed phase drop passes through fiber filament, water phase droplet is captured by fiber filament, sprawls to form liquid film in filament surface, is completed
Demulsification process.On the other hand, in the case where fiber filament staggeredly drains, water-oil phase is sufficiently mixed, miscellaneous by the solid hydrophilic of oil package
Sharp impacts occur for surfactant in matter and water.Under Action of Surfactant, the oil film on solid impurity surface is destroyed,
Meanwhile the charged group in amphoteric surfactant is attracted to around solid hydrophilic impurity, the oil film before replacing, finally
Solid hydrophilic impurity is wrapped up.Since amphoteric surfactant has good hydrophily, the package formed with solid impurity
Object is easily dispersed in water phase and water is captured by fiber filament together.The third aspect, amphoteric surfactant due to itself simultaneously
With positive charge and negative electrical charge, there is isoelectric point, after water phase containing amphoteric surfactant is sprawled on fiber filament, in oily phase
Charged impurity is not easy to assemble on fiber filament, avoids blocking.Liquid film containing solid impurity is moved along fiber filament, no
Disconnected coalescence forms big drop, falls off under self gravitation effect.Finally, settled in gun barrel, complete water-oil separating and
The removing of solid impurity.The solid content of the purification oil obtained using method provided by the invention is less than less than 1 weight %, water content
0.1 weight %.
Specific embodiment
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
First aspect present invention provides a kind of method of sump oil purification processing, method includes the following steps:
(1) in fiber film contactor, by containing surfactant aqueous solution and sump oil contact, mixed
Phase；
Wherein, the fiber film contactor includes cylinder, and the cylinder is filled with fiber filament；
(2) obtained mixed phase is subjected in gun barrel standing sedimentation, is purified oil.
In the present invention, sump oil can come from ageing oil, oily sludge and landing oil in oil extraction process etc., petroleum
Water is cut in clear tank sump oil, draining sump oil and greasy filth dross etc. in storage and the oil-containing electro-desalting in petroleum refining process
With coking wastewater etc..Solid content is less than 45 weight % in greasy dirt, and water content is less than 90 weight %.
In the present invention, in step (1), the surfactant is amphoteric surfactant.Amphoteric surfactant
It can be avoided filametntary blocking, and the wrappage formed with solid impurity is easily dispersed in water phase and water is fine together
Tie up silk capture.Preferably, the surfactant be selected from amino acid amphoteric surfactant, beet alkali ampholytic surface active agent and
At least one of imidazoline amophoteric surface active agent.It is further preferred that the surfactant is selected from laurel imino-diacetic
At least one of sodium propionate, lauryl betaine and lauric acid imidazoline quaternary ammonium salt.
In the present invention, in the aqueous solution containing surfactant of step (1), the concentration of surfactant is
0.01 weight %-0.5 weight %, preferably 0.05 weight %-0.2 weight %.
In the present invention, in step (1), the sump oil is preheated, can be realized sump oil and water and surfactant
For the purpose of coming into full contact with, preheating temperature is 90-200 DEG C, preferably 100-160 DEG C.
In the present invention, in step (1), the draw ratio in the mass transfer space of the cylinder can be 5-80:1, preferably
For 20-60:1.
In the present invention, the fiber filament filling rate of the cylinder refers to the volume and cylinder of filling fiber silk inside cylinder
The ratio between body volume.In situations where it is preferred, the fiber filament filling rate of the cylinder is 2%-30%, preferably 5%-15%.
In the present invention, in step (1), the fiber filament is hydrophilic fibre silk.In situations where it is preferred, the fibre
It ties up silk and is selected from least one of stainless steel wire, carbon steel wire, glass fiber, Fypro silk and polyester fiber silk.Into one
Preferably, the fiber filament is selected from least one of stainless steel wire, glass fiber and polyester fiber silk to step.The fiber filament
It can be various industrial fiber filament products, such as can be commercially available 316 series stainless steel silk, 0.05 millimeter of glass fibers
Tie up silk or polyester fiber silk.
In the present invention, in step (1), on the basis of the filametntary volume, the feed volume of the sump oil is empty
Speed is 5-60h-1, preferably 10-25h-1。
In the present invention, in step (1), the feed weight ratio of the aqueous solution and sump oil containing surfactant is
(0.02-0.3): 1, preferably (0.1-0.2): 1.
In the present invention, in step (1), the condition of the contact may include: that temperature is 80-200 DEG C, preferably
100-140℃；Pressure is 0.2-3.0MPa, preferably 0.5-1.0MPa.
In the present invention, in step (2), the time of standing sedimentation is 0.1-4h, preferably 0.5-2h.Standing sedimentation
If the time continues 4h or more, influence is had no for the effect of sedimentation, is intended merely to shorten the time of sedimentation, improves work effect
Rate, in the present invention, 0.5-2h can reach preferable effect.
Second aspect of the present invention provides a kind of system of sump oil purification processing, including fiber film contactor and grease point
From tank, wherein
Fiber film contactor is used to contain the fibre in the aqueous solution and sump oil and fiber film contactor of surfactant
Dimension silk contacts with each other, and obtains mixed phase, wherein the fiber film contactor includes cylinder, and the cylinder filling is
State fiber filament；
Gun barrel is connected with fiber film contactor, for the mixed phase to be carried out standing sedimentation, obtains net
Carburetion.
In the present invention, the side at the top of fiber film contactor is equipped with water filling port, and water filling port is connected with water distributor；It is fine
The bottom end of dimension liquid membrane contactor is protruded into inside settling tank, and the inside of fiber film contactor is uniformly distributed fiber filament, water-oil separating
The one end in tank deck face is equipped with purification oil export, and one end of settling tank bottom surface is equipped with water dividing gap.
The present invention will be described in detail by way of examples below.
Laurel dipropionic acid sodium is purchased from Shanghai Hao Hua Chemical Co., Ltd..
Lauryl betaine is purchased from Hangzhou Yu Hao Chemical Industry Science Co., Ltd.
Lauric acid imidazoline quaternary ammonium salt is purchased from Shaanxi day young oil Chemical Co., Ltd..
Embodiment 1
(1) 1# sump oil is preheated to 100 DEG C, the fiber filament in the mass transfer space cylinder of fiber film contactor is 316
Series stainless steel silk.The draw ratio in cylinder mass transfer space is 20:1, and the filling rate of cylinder is 5%, fiber film contactor body
Product is 2L.It according to inlet amount is 1kg/h by the sump oil after preheating, liquid hourly space velocity (LHSV) 10h-1Contactor is injected, while quality is dense
The laurel dipropionic acid sodium water solution of degree 0.05% is that 0.1kg/h injects contactor according to inlet amount；Fiber liquid film contact
Contact Temperature in device is 100 DEG C, contact pressure 0.5MPa.
(2) mixed phase being discharged from fiber film contactor is stood into 2h in gun barrel.Pass through gun barrel
Top oil recovery phase, lower section discharge water recycle injection contactor after settlement, the solid that sedimentation obtains are recycled.
Water content and solid content and gun barrel during the purification obtained after measurement sump oil raw material and purified treatment is oily
Oil content in water (cutting water) is discharged in lower section, the results are shown in Table 1.
Table 1
| Serial number | Test item | Sump oil | Purification oil | Cut water |
| 1 | Water content, weight % | 23.5 | 0.05 | - |
| 2 | Solid content, weight % | 24.6 | 0.2 | - |
| 3 | Oil content, mg/L | - | - | 232.3 |
Embodiment 2
(1) 1# sump oil is preheated to 110 DEG C, the fiber filament in the mass transfer space cylinder of fiber film contactor is glass
Fiber filament.The draw ratio in cylinder mass transfer space is 30:1, and the filling rate of cylinder is 7%, and fiber film contactor volume is 2L.
It according to inlet amount is 2.1kg/h by the sump oil after preheating, liquid hourly space velocity (LHSV) 15h-1Contactor is injected, while will be by mass concentration
0.1% laurel dipropionic acid sodium water solution is that 0.25kg/h injects contactor according to inlet amount；Fiber film contactor
In Contact Temperature be 120 DEG C, contact pressure 0.6MPa.
(2) mixed phase being discharged from fiber film contactor is stood into 2h in gun barrel.Pass through gun barrel
Top oil recovery phase, lower section discharge water recycle injection contactor after settlement, the solid that sedimentation obtains are recycled.
Water content and solid content and gun barrel during the purification obtained after measurement sump oil raw material and purified treatment is oily
Oil content in water (cutting water) is discharged in lower section, the results are shown in Table 2.
Table 2
| Serial number | Test item | Sump oil | Purification oil | Cut water |
| 1 | Water content, weight % | 23.5 | 0.03 | - |
| 2 | Solid content, weight % | 24.6 | 0.5 | - |
| 3 | Oil content, mg/L | - | - | 238.8 |
Embodiment 3
(1) 1# sump oil is preheated to 120 DEG C, the fiber filament in the mass transfer space cylinder of fiber film contactor is polyester
Fiber filament.The draw ratio in cylinder mass transfer space is 40:1, and the filling rate of cylinder is 9%, and fiber film contactor volume is 2L.
It according to inlet amount is 2.7kg/h by the sump oil after preheating, liquid hourly space velocity (LHSV) 15h-1Contactor is injected, while by mass concentration
0.2% laurel dipropionic acid sodium water solution is that 0.35kg/h injects contactor according to inlet amount；Fiber film contactor
In Contact Temperature be 130 DEG C, contact pressure 0.7MPa.
(2) oil mixing with water being discharged from fiber film contactor is mutually stood into 1.5h in gun barrel.Pass through grease
Oil recovery phase above knockout drum, lower section discharge water recycle injection contactor after settlement, the solid recycling settled.
Water content and solid content and gun barrel during the purification obtained after measurement sump oil raw material and purified treatment is oily
Oil content in water (cutting water) is discharged in lower section, the results are shown in Table 3.
Table 3
| Serial number | Test item | Sump oil | Purification oil | Cut water |
| 1 | Water content, weight % | 23.5 | 0.06 | - |
| 2 | Solid content, weight % | 24.6 | 0.3 | - |
| 3 | Oil content, mg/L | - | - | 212.0 |
Embodiment 4
(1) 2# sump oil is preheated to 140 DEG C, the fiber filament in the mass transfer space cylinder of fiber film contactor is 316
Series stainless steel silk.The draw ratio in cylinder mass transfer space is 50:1, and the filling rate of cylinder is 12%, fiber film contactor body
Product is 2L.It according to inlet amount is 4.8kg/h by the sump oil after preheating, liquid hourly space velocity (LHSV) 20h-1Contactor is injected, while by quality
The lauryl betaine aqueous solution of concentration 0.15% is that 0.7kg/h injects contactor according to inlet amount；In fiber film contactor
Contact Temperature be 130 DEG C, contact pressure 0.8MPa.
(2) oil mixing with water being discharged from fiber film contactor is mutually stood into 1h in gun barrel.Pass through grease point
From oil recovery phase above tank, lower section discharge water recycles injection contactor after settlement, the solid recycling settled.
Water content and solid content and gun barrel during the purification obtained after measurement sump oil raw material and purified treatment is oily
Oil content in water (cutting water) is discharged in lower section, the results are shown in Table 4.
Table 4
| Serial number | Test item | Sump oil | Purification oil | Cut water |
| 1 | Water content, weight % | 32.7 | 0.06 | - |
| 2 | Solid content, weight % | 25.8 | 0.5 | - |
| 3 | Oil content, mg/L | - | - | 245.5 |
Embodiment 5
(1) 3# sump oil is preheated to 160 DEG C, the fiber filament in the mass transfer space cylinder of fiber film contactor is 316
Series stainless steel silk.The draw ratio in cylinder mass transfer space is 60:1, and the filling rate of cylinder is 15%, fiber film contactor body
Product is 2L.It according to inlet amount is 7.5kg/h by the sump oil after preheating, liquid hourly space velocity (LHSV) 25h-1Contactor is injected, while by quality
The lauric acid imidazoline quaternary ammonium salt aqueous solution of concentration 0.15% is that 1.5kg/h injects contactor according to inlet amount；Fiber liquid film connects
Contact Temperature in tentaculum is 140 DEG C, contact pressure 1.0MPa.
(2) oil mixing with water being discharged from fiber film contactor is mutually stood into 0.5h in gun barrel.Pass through grease
Oil recovery phase above knockout drum, lower section discharge water recycle injection contactor after settlement, the solid recycling settled.
Water content and solid content and gun barrel during the purification obtained after measurement sump oil raw material and purified treatment is oily
Oil content in water (cutting water) is discharged in lower section, the results are shown in Table 5.
Table 5
| Serial number | Test item | Sump oil | Purification oil | Cut water |
| 1 | Water content, weight % | 28.7 | 0.09 | - |
| 2 | Solid content, weight % | 20.5 | 0.7 | - |
| 3 | Oil content, mg/L | - | - | 233.6 |
Embodiment 6
(1) 1# sump oil is preheated to 200 DEG C, the fiber filament in the mass transfer space cylinder of fiber film contactor is 316
Series stainless steel silk.The draw ratio in cylinder mass transfer space is 5:1, and the filling rate of cylinder is 30%, fiber film contactor body
Product is 2L.It according to inlet amount is 1kg/h by the sump oil after preheating, liquid hourly space velocity (LHSV) 5h-1Contactor is injected, while by mass concentration
0.01% laurel dipropionic acid sodium water solution is that 0.02kg/h injects contactor according to inlet amount；Fiber film contactor
In Contact Temperature be 80 DEG C, contact pressure 0.2MPa.
(2) mixed phase being discharged from fiber film contactor is stood into 4h in gun barrel.Pass through gun barrel
Top oil recovery phase, lower section discharge water recycle injection contactor after settlement, the solid that sedimentation obtains are recycled.
Water content and solid content and gun barrel during the purification obtained after measurement sump oil raw material and purified treatment is oily
Oil content in water (cutting water) is discharged in lower section, the results are shown in Table 6.
Table 6
| Serial number | Test item | Sump oil | Purification oil | Cut water |
| 1 | Water content, weight % | 23.5 | 0.1 | - |
| 2 | Solid content, weight % | 24.6 | 1.0 | - |
| 3 | Oil content, mg/L | - | - | 299.8 |
Embodiment 7
(1) 1# sump oil is preheated to 90 DEG C, the fiber filament in the mass transfer space cylinder of fiber film contactor is glass
Fiber filament.The draw ratio in cylinder mass transfer space is 80:1, and the filling rate of cylinder is 2%, and fiber film contactor volume is 2L.
It according to inlet amount is 1kg/h by the sump oil after preheating, liquid hourly space velocity (LHSV) 60h-1Contactor is injected, while by mass concentration 0.5%
Laurel dipropionic acid sodium water solution according to inlet amount be 0.3kg/h inject contactor；Connecing in fiber film contactor
Touching temperature is 200 DEG C, contact pressure 1MPa.
(2) mixed phase being discharged from fiber film contactor is stood into 0.1h in gun barrel.Pass through water-oil separating
Oil recovery phase above tank, lower section discharge water recycle injection contactor after settlement, the solid that sedimentation obtains are recycled.
Water content and solid content and gun barrel during the purification obtained after measurement sump oil raw material and purified treatment is oily
Oil content in water (cutting water) is discharged in lower section, the results are shown in Table 7.
Table 7
| Serial number | Test item | Sump oil | Purification oil | Cut water |
| 1 | Water content, weight % | 23.5 | 0.05 | - |
| 2 | Solid content, weight % | 24.6 | 0.9 | - |
| 3 | Oil content, mg/L | - | - | 201.1 |
Comparative example 1
(1) 1# sump oil is preheated to 80 DEG C, the fiber filament in the mass transfer space cylinder of fiber film contactor is 316 systems
Column stainless steel wire.The draw ratio in cylinder mass transfer space is 3:1, and the filling rate of cylinder is 40%, fiber film contactor volume
For 2L.It according to inlet amount is 1kg/h by the sump oil after preheating, liquid hourly space velocity (LHSV) 3h-1Contactor is injected, while by mass concentration
0.005% laurel dipropionic acid sodium water solution is that 0.01kg/h injects contactor according to inlet amount；Fiber liquid film contact
Contact Temperature in device is 70 DEG C, contact pressure 0.1MPa.
(2) mixed phase being discharged from fiber film contactor is stood into 0.05h in gun barrel.Pass through water-oil separating
Oil recovery phase above tank, lower section discharge water recycle injection contactor after settlement, the solid that sedimentation obtains are recycled.
Water content and solid content and gun barrel during the purification obtained after measurement sump oil raw material and purified treatment is oily
Oil content in water (cutting water) is discharged in lower section, the results are shown in Table 8.
Table 8
| Serial number | Test item | Sump oil | Sump oil after purification | Cut water |
| 1 | Water content, weight % | 23.5 | 16.5 | - |
| 2 | Solid content, weight % | 24.6 | 10.8 | - |
| 3 | Oil content, mg/L | - | - | 1500 |
Comparative example 2
According to the method for embodiment 1, unlike, sump oil the results are shown in Table 9 without preheating.
Table 9
| Serial number | Test item | Sump oil | Sump oil after purification | Cut water |
| 1 | Water content, weight % | 23.5 | 6.9 | - |
| 2 | Solid content, weight % | 24.6 | 5.3 | - |
| 3 | Oil content, mg/L | - | - | 7.2 |
Comparative example 3
According to the method for embodiment 1, unlike, fiber filament is polyethylene fibre silk (non-hydrophilic fiber filament), as a result
It is shown in Table 10.
Table 10
| Serial number | Test item | Sump oil | Sump oil after purification | Cut water |
| 1 | Water content, weight % | 23.5 | 20.5 | - |
| 2 | Solid content, weight % | 24.6 | 21.0 | - |
| 3 | Oil content, mg/L | - | - | 2500 |
Comparative example 4
According to the method for embodiment 1, unlike, surfactant is not contained in aqueous solution, the results are shown in Table 11.
Table 11
| Serial number | Test item | Sump oil | Sump oil after purification | Cut water |
| 1 | Water content, weight % | 23.5 | 6.1 | - |
| 2 | Solid content, weight % | 24.6 | 5.2 | - |
| 3 | Oil content, mg/L | - | - | 232 |
It can be seen that by above result and effectively remove sump oil using the method that sump oil purification of the invention is handled is enough
In solid impurity and water, return period is short, acquisition purification oil solid content less than 1 weight %, water content less than 0.1 weight
Measure %.
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In skill of the invention
In art conception range, can with various simple variants of the technical solution of the present invention are made, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, is belonged to
Protection scope of the present invention.
Claims (11)
1. a kind of method of sump oil purification processing, which is characterized in that method includes the following steps:
(1) in fiber film contactor, by containing surfactant aqueous solution and sump oil contact, obtain mixed phase；
Wherein, the fiber film contactor includes cylinder, and the cylinder is filled with fiber filament；
(2) obtained mixed phase is subjected in gun barrel standing sedimentation, is purified oil.
2. according to the method described in claim 1, wherein, in step (1), the surfactant is amophoteric surface active
Agent；
Preferably, the surfactant is selected from amino acid amphoteric surfactant, beet alkali ampholytic surface active agent and imidazoles
At least one of quinoline amphoteric surfactant；
Preferably, the surfactant is selected from laurel dipropionic acid sodium, lauryl betaine and lauric acid imidazoline season
At least one of ammonium salt.
3. according to the method described in claim 1, wherein, in the aqueous solution containing surfactant of step (1), surface
The concentration of activating agent is 0.01 weight %-0.5 weight %, preferably 0.05 weight %-0.2 weight %.
4. according to the method described in claim 1, wherein, in step (1), the sump oil is preheated, preheating temperature 90-
200 DEG C, preferably 100-160 DEG C.
5. according to the method described in claim 1, wherein, in step (1), the draw ratio in the mass transfer space of the cylinder is
5-80:1, preferably 20-60:1；
Preferably, the fiber filament filling rate of the cylinder is 2%-30%, preferably 5%-15%.
6. according to the method described in claim 5, wherein, in step (1), the fiber filament is hydrophilic fibre silk；
Preferably, the fiber filament is selected from stainless steel wire, carbon steel wire, glass fiber, Fypro silk and polyester fiber silk
At least one of；
Preferably, the fiber filament is selected from least one of stainless steel wire, glass fiber and polyester fiber silk.
7. described on the basis of the filametntary volume in step (1) according to the method described in claim 1, wherein
The feed volume air speed of sump oil is 5-60h-1, preferably 10-25h-1。
8. according to the method described in claim 1, wherein, in step (1), the aqueous solution and sump oil containing surfactant
Feed weight ratio be (0.02-0.3): 1, preferably (0.1-0.2): 1.
9. according to the method described in claim 1, wherein, in step (1), the condition of the contact includes: that temperature is 80-
200 DEG C, preferably 100-140 DEG C；Pressure is 0.2-3.0MPa, preferably 0.5-1.0MPa.
10. according to the method described in claim 1, wherein, in step (2), the time of standing sedimentation is 0.1-4h, preferably
0.5-2h。
11. a kind of system of sump oil purification processing, including fiber film contactor and gun barrel, wherein
Fiber film contactor is used to contain the fiber filament in the aqueous solution and sump oil and fiber film contactor of surfactant
It contacts with each other, obtains mixed phase, wherein the fiber film contactor includes cylinder, and the cylinder is filled with the fibre
Tie up silk；
Gun barrel is connected with fiber film contactor, for the mixed phase to be carried out standing sedimentation, is purified oil.
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Citations (2)
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|---|---|---|---|---|
| US20130270187A1 (en) * | 2010-01-15 | 2013-10-17 | Organic Fuels Algae Technologies, LLC | Non-dispersive process for oil recovery |
| CN203999513U (en) * | 2014-06-26 | 2014-12-10 | 湖南长岭石化科技开发有限公司 | A kind of crude oil membrane mass transfer pretreatment system |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130270187A1 (en) * | 2010-01-15 | 2013-10-17 | Organic Fuels Algae Technologies, LLC | Non-dispersive process for oil recovery |
| CN203999513U (en) * | 2014-06-26 | 2014-12-10 | 湖南长岭石化科技开发有限公司 | A kind of crude oil membrane mass transfer pretreatment system |
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