CN104946302A - Catalytic slurry oil filter system - Google Patents
Catalytic slurry oil filter system Download PDFInfo
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- CN104946302A CN104946302A CN201510349053.9A CN201510349053A CN104946302A CN 104946302 A CN104946302 A CN 104946302A CN 201510349053 A CN201510349053 A CN 201510349053A CN 104946302 A CN104946302 A CN 104946302A
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Abstract
The invention discloses a catalytic slurry oil filter system, which comprises an ultrasonic demulsification area, a natural subsidence area, a filter area, an ultrasonic auxiliary backwash area, wherein the ultrasonic demulsification area, the filter area and the ultrasonic auxiliary backwash area are distributed in parallel, the filter area is arranged below the ultrasonic auxiliary backwash area, the natural subsidence area is arranged below the ultrasonic demulsification area and the filer area, a first group of ultrasonic energy converter is arranged above the inner portion of the ultrasonic demulsification area, a third group of ultrasonic energy converter is arranged above the inner portion of the ultrasonic auxiliary backwash area, the filter area is provided with a filter screen, grids are arranged in the natural subsidence area, a cone-shaped area with a slag material outlet is arranged below the natural subsidence area, a second group of ultrasonic energy converter is arranged on the right of the inner portion of the natural subsidence area, slurry oil and demulsification-diluent orderly enter the ultrasonic demulsification area, the natural subsidence area and the filter area to be discharged outside the catalytic slurry oil filter system after being fixed. The catalytic slurry oil filter system is simple in operation and high in efficiency.
Description
Technical field
The present invention relates to catalyst field, specifically a kind of catalytic slurry filtering system.
Background technology
The annual working ability of China's catalytic cracking (FCC) is more than 100,000,000 tons, externally extracting oil amount accounts for 5% ~ 10% of FCC apparatus treatment capacity, and along with continuous increase and raw material heaviness, the in poor quality day by day of catalytic unit processing power, the output of slurry oil will increase further.At present, catalytically cracked oil is used for mixing except refining raw material of the devices such as delayed coking except a part, it is oily that major part is used for Blended fuel.
In slurry oil except the component containing the cracking again of a large amount of carrying out, also have a large amount of condensed-nuclei aromaticss, this compositing characteristic of slurry oil can be utilized to have high value-added product to produce rubber plastizing agent, needle coke etc.Good economic benefit will be brought to oil refining enterprise to its exploitation.Containing a certain amount of catalyst fines in catalytically cracked oil, tired reasonable development application of scratching catalytically cracked oil.
The method of current separation catalyst powder in catalytic cracking oil slurry has: natural subsidence, auxiliary agent sedimentation, filters, electrostatic separation, centrifugal separation etc.These methods or there is the shortcomings such as disengaging time is long, all very high to equipment requirements, separating effect is undesirable, separation costs is high.
Summary of the invention
The object of the present invention is to provide a kind of simple to operate, catalytic slurry filtering system that efficiency is high, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of catalytic slurry filtering system, comprise ultrasonic emulsion breaking district, natural subsidence district, filtrating area, ultrasonic wave added back flushing district, ultrasonic emulsion breaking district and filtrating area and ultrasonic wave added back flushing district are arranged in juxtaposition, and filtrating area is positioned at the below in ultrasonic wave added back flushing district, be provided with natural subsidence district in the below of ultrasonic emulsion breaking district and filtrating area; Ultrasonic emulsion breaking district is provided with feed(raw material)inlet, and the top of inside, ultrasonic emulsion breaking district is provided with first group of ultrasonic transducer; The top of inside, ultrasonic wave added back flushing district is provided with the 3rd group of ultrasonic transducer, and the right side in ultrasonic wave added back flushing district is provided with purified liquor outlet and counter-flushing liquid entrance; Filtrating area is provided with filter screen; The inside in natural subsidence district is provided with grid, and the below in natural subsidence district is the tapered zone with slag charge outlet, and the right side of inside, natural subsidence district is provided with second group of ultrasonic transducer; System is gone out after entering ultrasonic emulsion breaking district, natural subsidence district and filtrating area Removal of catalyst powder successively after slurry oil and breakdown of emulsion-thinner mix.
As the further scheme of the present invention: ultrasonic emulsion breaking district, natural subsidence district, filtrating area, ultrasonic wave added back flushing district are overlapped into rectangular structure in space, the length of its long L, wide W, high H is than being L:W:H=1:(0.2-0.8): (0.5-1.5); The volume ratio in ultrasonic emulsion breaking district, natural subsidence district, filtrating area, ultrasonic wave added back flushing district is: V
: V
: V
: V
=(0.1-0.3): (0.4-0.5): (0.1-0.2): (0.1-0.2).
As the further scheme of the present invention: the height H g of grid compares for Hg/Hn=0.8-1.5 with the distance of grid top to the distance Hn of bottom, ultrasonic emulsion breaking district.
As the further scheme of the present invention: filter screen is porous metal filter core.
As the further scheme of the present invention: first group of ultrasonic transducer, second group of ultrasonic transducer and the 3rd group of ultrasonic transducer all adopt piezoelectric-type ultrasonic wave transducer, and ultrasonic frequency is 10kHz-100kHz, ultrasound intensity 0.2-2.5w/cm
2.Second group of ultrasonic transducer (8) adopts low ultrasound intensity to run when filtering, and adopts high ultrasound intensity to run when back flushing.
As the further scheme of the present invention: the mixed aqueous solution that the quality such as described dilution-emulsion splitter is dodecyl benzyl dimethyl ammonium chloride, two or more compound in polyacrylamide, polyoxyethylene glycol, polyvinyl alcohol is mixed with, the mass concentration of this mixed aqueous solution is 50-300 μ g/g; The consumption of dilution-emulsion splitter is 0.8-2.0 times of slurry oil quality.
Compared with prior art, the invention has the beneficial effects as follows: the shortcoming such as the present invention is directed to that the disengaging time that removal method of catalyst in current catalytically cracked oil exists is long, all very high to equipment requirements, separating effect is undesirable or separation costs is high, there is provided a kind of catalytic slurry filtering system, this system operation is simple, efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1-feed(raw material)inlet, 2-first group of ultrasonic transducer, 3-ultrasonic emulsion breaking district, 4-natural subsidence district, 5-grid, 6-tapered zone, the outlet of 7-slag charge, 8-second group of ultrasonic transducer, 9-filter screen, 10-filtrating area, 11-counter-flushing liquid entrance, 12-purified liquor outlet, 13-ultrasonic wave added back flushing district, 14-the 3rd group of ultrasonic transducer.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
Refer to Fig. 1, in the embodiment of the present invention, a kind of catalytic slurry filtering system, comprises the functional unit districts such as ultrasound-enhanced breakdown of emulsion, natural subsidence, filtration and ultrasonic wave added back flushing, is respectively ultrasonic emulsion breaking district 3, natural subsidence district 4, filtrating area 10, ultrasonic wave added back flushing district 13.
Ultrasonic emulsion breaking district 3 is arranged in juxtaposition with filtrating area 10 and ultrasonic wave added back flushing district 13, and filtrating area 10 is positioned at the below in ultrasonic wave added back flushing district 13, is provided with natural subsidence district 4 in ultrasonic emulsion breaking district 3 and the below of filtrating area 10.
Ultrasonic emulsion breaking district 3, natural subsidence district 4, filtrating area 10, ultrasonic wave added back flushing district 13 are overlapped into rectangular structure in space, and the length of its long L, wide W, high H is than being L:W:H=1:0.3:0.6; The volume ratio in ultrasonic emulsion breaking district 3, natural subsidence district 4, filtrating area 10, ultrasonic wave added back flushing district 13 is: V
: V
: V
: V
=0.1:0.4:0.15:0.15.Arrange some grids 5 in natural subsidence district 4, the height H g of grid 5 compares for Hg/Hn=1 with the distance of grid top to the distance Hn of bottom, ultrasonic emulsion breaking district.
Ultrasonic emulsion breaking district 3 is provided with feed(raw material)inlet 1, and the first group of ultrasonic transducer 2 be made up of 3 transverters is installed in the top of inside, ultrasonic emulsion breaking district 3, and ultrasonic frequency is that 10kHz-80kHz can realize 0.2-2.0w/cm
2ultrasound intensity; The top of inside, ultrasonic wave added back flushing district 13 is provided with the 3rd group of ultrasonic transducer 14 be made up of 5 transverters, and ultrasonic frequency is 10kHz-100kHz, can realize 0.5-2.5w/cm
2ultrasound intensity; The sidewall in ultrasonic wave added back flushing district 13 is provided with purified liquor outlet 12 and counter-flushing liquid entrance 11; Filtrating area 10 is provided with filter screen 9; The inside in natural subsidence district 4 is provided with grid 5, the below in natural subsidence district 4 is the tapered zone 6 with slag charge outlet 7, natural subsidence district 4 is inner and the lower wall of filtrating area 10 is provided with the second ultrasonic transducer 8 be made up of 5 transverters, ultrasonic frequency is 10kHz-100kHz, can realize 0.5-2.5w/cm
2ultrasound intensity.When filtering, second group of ultrasonic transducer (8) adopts low ultrasound intensity to run, and adopts high ultrasound intensity to run when back flushing.
Slurry oil and breakdown of emulsion-thinner mix laggard enter ultrasonic emulsion breaking district 3 carry out ultrasound-enhanced breakdown of emulsion, then enter natural subsidence district 4 and carry out natural subsidence, then enter after filtrating area 10 is filtered and go out system.When after filter operation certain hour, carry out backwash operation.
The mixed aqueous solution that the quality such as dilution-emulsion splitter is dodecyl benzyl dimethyl ammonium chloride, two or more compound in polyacrylamide, polyoxyethylene glycol, polyoxyethylene glycol are mixed with, the mass concentration of this mixed aqueous solution is 50-300 μ g/g; The consumption of dilution-emulsion splitter is 0.8-2.0 times of slurry oil quality.
Embody rule example:
The catalytic slurry that catalyst content is 655.86 μ g/g, flow is 1L/h and amount catalytic slurry flow be 1.2L/h by etc. the concentration that form of the dodecyl benzyl dimethyl ammonium chloride of quality, polyacrylamide, polyoxyethylene glycol be that the dilution-emulsion splitter of 150 μ g/g is entered after ultrasonic emulsion breaking district carries out ultrasonic emulsion breaking after mixing by feed(raw material)inlet, enter natural subsidence district, the solid slag catalyzer after settlement separate is collected through tapered zone and is discharged from slag-drip opening.After natural subsidence, the mixture of slurry oil and thinner filters in district after filtration, and during filtration, the ultrasound intensity of second group of ultrasonic transducer is 0.85w/cm
2, ultrasonic frequency is 20kHz, is discharged after filtration by purified liquor outlet.After this separation system is separated, slurry oil catalyst content is 15.23 μ g/g.
After this separation system runs for some time, back flushing need be carried out.During back flushing, the ultrasonic frequency of second group of ultrasonic transducer is 50kHz, and ultrasound intensity is 0.85w/cm
2.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (6)
1. a catalytic slurry filtering system, it is characterized in that, comprise ultrasonic emulsion breaking district (3), natural subsidence district (4), filtrating area (10), ultrasonic wave added back flushing district (13), ultrasonic emulsion breaking district (3) is arranged in juxtaposition with filtrating area (10) and ultrasonic wave added back flushing district (13), and filtrating area (10) are positioned at the below in ultrasonic wave added back flushing district (13), be provided with natural subsidence district (4) in ultrasonic emulsion breaking district (3) and the below of filtrating area (10); Ultrasonic emulsion breaking district (3) are provided with feed(raw material)inlet (1), and the top of ultrasonic emulsion breaking district (3) inside is provided with first group of ultrasonic transducer (2); The top of inside, ultrasonic wave added back flushing district (13) is provided with the 3rd group of ultrasonic transducer (14), and the right side in ultrasonic wave added back flushing district (13) is provided with purified liquor outlet (12) and counter-flushing liquid entrance (11); Filtrating area (10) is provided with filter screen (9); The inside in natural subsidence district (4) is provided with grid (5), and the below of natural subsidence district (4) is the tapered zone (6) with slag charge outlet (7), and the right side of natural subsidence district (4) inside is provided with second group of ultrasonic transducer (8); System is gone out after entering ultrasonic emulsion breaking district (3), natural subsidence district (4) and filtrating area (10) Removal of catalyst powder successively after slurry oil and breakdown of emulsion-thinner mix.
2. catalytic slurry filtering system according to claim 1, it is characterized in that, described ultrasonic emulsion breaking district (3), natural subsidence district (4), filtrating area (10), ultrasonic wave added back flushing district (13) are overlapped into rectangular structure in space, and the length of its long L, wide W, high H is than being L:W:H=1:(0.2-0.8): (0.5-1.5); The volume ratio in ultrasonic emulsion breaking district (3), natural subsidence district (4), filtrating area (10), ultrasonic wave added back flushing district (13) is: V
: V
: V
: V
=(0.1-0.3): (0.4-0.5): (0.1-0.2): (0.1-0.2).
3. catalytic slurry filtering system according to claim 1, is characterized in that, the height H g of described grid (5) and grid (5) top to the distance of the distance Hn of ultrasonic emulsion breaking district (3) bottom than being Hg/Hn=0.8-1.5.
4. catalytic slurry filtering system according to claim 1, is characterized in that, described filter screen (9) is porous metal filter core.
5. catalytic slurry filtering system according to claim 1, it is characterized in that, described first group of ultrasonic transducer (2), second group of ultrasonic transducer (8) all adopt piezoelectric-type ultrasonic wave transducer with the 3rd group of ultrasonic transducer (14), ultrasonic frequency is 10kHz-100kHz, ultrasound intensity 0.2-2.5w/cm
2; Second group of ultrasonic transducer (8) adopts low ultrasound intensity to run when filtering, and adopts high ultrasound intensity to run when back flushing.
6. catalytic slurry filtering system according to claim 1, it is characterized in that, the mixed aqueous solution that the quality such as described dilution-emulsion splitter is dodecyl benzyl dimethyl ammonium chloride, two or more compound in polyacrylamide, polyoxyethylene glycol, polyvinyl alcohol are mixed with, the mass concentration of this mixed aqueous solution is 50-300 μ g/g; The consumption of dilution-emulsion splitter is 0.8-2.0 times of slurry oil quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349053.9A CN104946302A (en) | 2015-06-24 | 2015-06-24 | Catalytic slurry oil filter system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349053.9A CN104946302A (en) | 2015-06-24 | 2015-06-24 | Catalytic slurry oil filter system |
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| Publication Number | Publication Date |
|---|---|
| CN104946302A true CN104946302A (en) | 2015-09-30 |
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|---|---|---|---|
| CN201510349053.9A Pending CN104946302A (en) | 2015-06-24 | 2015-06-24 | Catalytic slurry oil filter system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675626A (en) * | 2017-01-18 | 2017-05-17 | 中石化炼化工程（集团）股份有限公司 | Solid-liquid separation device for oil slurry and solid-liquid separation system for oil slurry |
| CN106745372A (en) * | 2016-12-12 | 2017-05-31 | 东莞市鸿捷环保科技有限公司 | Intellectuality backwash filter tank and its back-flushing method |
-
2015
- 2015-06-24 CN CN201510349053.9A patent/CN104946302A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745372A (en) * | 2016-12-12 | 2017-05-31 | 东莞市鸿捷环保科技有限公司 | Intellectuality backwash filter tank and its back-flushing method |
| CN106675626A (en) * | 2017-01-18 | 2017-05-17 | 中石化炼化工程（集团）股份有限公司 | Solid-liquid separation device for oil slurry and solid-liquid separation system for oil slurry |
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Application publication date: 20150930 |
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