CN106675626A - Solid-liquid separation device for oil slurry and solid-liquid separation system for oil slurry - Google Patents
Solid-liquid separation device for oil slurry and solid-liquid separation system for oil slurry Download PDFInfo
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- CN106675626A CN106675626A CN201710040356.1A CN201710040356A CN106675626A CN 106675626 A CN106675626 A CN 106675626A CN 201710040356 A CN201710040356 A CN 201710040356A CN 106675626 A CN106675626 A CN 106675626A
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- slurry oil
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- separator
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Classifications
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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
- C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
- C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
- B01D36/045—Combination of filters with centrifugal separation devices
-
- 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
- C10G2300/80—Additives
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention provides a solid-liquid separation device for oil slurry and a solid-liquid separation system for oil slurry. The solid-liquid separation device for oil slurry comprises at least one mixer, at least one first-level separator and at least one second-level filter; the first-level separator is communicated with each mixer; the second-level filter is communicated with each first-level separator. Different from a traditional single filtering and separating technology, the invention adopts the first-level separation and the second-level filtering, so that the solid-liquid separation device for oil slurry can meet the requirement of long-period stable work.
Description
Technical field
The invention belongs to catalytic cracking unit externally extracting oil solid-liquid separation field, is related to get rid of oil outside a kind of catalytic cracking unit
The group technology of slurry solid-liquid separation, in particular to a kind of slurry oil equipment for separating liquid from solid and slurry oil solid-liquid separation system, especially
It is effective to the slurry oil containing colloid, asphalitine.
Background technology
In China, catalytic cracking unit generally mixes refining decompression residuum or atmospheric residue, belongs to RFCC.In recent years
Although catalytic cracking process faces the competition being hydrocracked, but still is the Main Means of current heavy oil lighting, is that refinery obtains
The important channel of economic benefit.In recent years due to raw material heaviness and refinery's intermingled dregs ratio example increase, catalytic cracking unit
Difficulty of processing constantly increases, while producing substantial amounts of catalytic slurry.The usual processing method of slurry oil is that to allow which to enter riser anti-
Device is answered, freshening is carried out.Contain a large amount of condensed-nuclei aromatics in slurry oil, cracking stability is more much lower than fresh feed, causes catalyst easy
Green coke, when burning, thermal discharge is big, reduces the security and stability of device, therefore refinery typically takes reduction slurry oil recycle ratio, outward
Get rid of the measure of part slurry oil.
China's major part externally extracting oil is used as the blend component of fuel oil, and economic benefit is low, and containing few in slurry oil
The solid particle of amount, easily causes converter nose abrasion and the serious ash deposit and slag buildup in furnace tubing surface, causes thermal efficiency decline, energy consumption to increase
Plus.Contain substantial amounts of saturated hydrocarbons and heavy arene and a small amount of carbon residue and heavy metal, alkane therein in catalytic cracked oil pulp
It is the catalytically cracked material of high-quality with low condensed aromatics；And heavy arene is important industrial chemicals, but in slurry oil containing
Catalyst fines, iron sesquioxide and antimony pentoxide for carrying secretly in fluid bed etc. (about 20 μm of mean diameter, heap density 0.8~
0.9g/cm3), the quality of downstream product is had a strong impact on, therefore before removing the catalyst fines slurry oil comprehensive utilization in slurry oil
Carry.As China refines oil being continuously increased for disposal ability, externally extracting oil is also continuously increased, and catalytic cracking externally extracting oil has become one
Very important resource is planted, therefore the solid-liquid separation technique of catalytic cracked oil pulp has become the important topic of current research.
If the solid content in catalytic cracking externally extracting oil can be down to below 500ppm, it is possible to for producing charcoal
Black or rubber filler, is down to 300ppm and can just produce senior white carbon black, is down to below 100ppm and just can be used to produce needle-like
Jiao, is down to the raw material that 20ppm may serve as being hydrocracked, and is down to below l0ppm and just can be used to produce carbon fiber.At present,
It is industrial remove solid particle in catalytic cracked oil pulp using separation method mainly have natural sedimentation, be separated by filtration method, quiet
Electrically separated method and centrifugal separation etc..The method of being separated by filtration is by the solid catalyst in slurry oil by using a kind of poromerics
Grain is intercepted and realizes the effective ways of purification separation, and the filter element of slurry oil filter mainly sinters silk screen micropore filter element using rustless steel
Or the sintered microporous filter element of powder of stainless steel.Practice have shown that, Filtration is that a kind of technology stable, disposal ability relatively is big, separates effect
A kind of technology being most widely used in the high catalytic cracked oil pulp processing method of rate, and current commercial plant.
For example, a kind of separating residual thing from catalytic cracked oil pulp is disclosed in Patent No. CN201010577004.8
Device and method, using multigroup filtration group；For example, a kind of catalytic cracking is disclosed in Patent No. CN201210530805.8
The slurry oil filtration system of device, technological process are different, but two-stage is all using filtration；Wherein, the latter is to double-filtration mechanism
What is illustrated is more deep, but no essential distinction.The characteristics of in poor quality, heaviness is presented with catalytic cracked oil pulp, it is existing
The single technique that is separated by filtration is difficult to meet macrocyclic steady operation.For example, it is public in Patent No. CN201020213529.9
Open fluid catalytic cracking slurry filter equipment and mentioned and adopted cross-flow filter, still rely on filtering technique, according to industry park plan situation
From the point of view of, still it is difficult to meet the requirement of long period steady operation.China University Of Petroleum Beijing cooperates the Patent No. declared with SEI
CN201120188596.4 discloses a kind of continuous filter device for catalytic slurry oil and Patent No. CN201120188613.4 is public
Mention in having opened a kind of catalytic slurry oil filter device using eddy flow and filtration combination technique, but to eddy flow and filter without big
Technological improvement.
The information for being disclosed in the background section is merely intended to deepen the understanding of the general background technology to the present invention, and
It is not construed as recognizing or implying in any form information structure prior art known to those skilled in the art.
The content of the invention
It is an object of the invention to provide slurry oil equipment for separating liquid from solid and slurry oil solid-liquid separation system, largely make up
Deficiency of the catalytic cracked oil pulp processing method using single Filtration in prior art.
It is an object of the invention to provide a kind of slurry oil equipment for separating liquid from solid.
The second object of the present invention is to provide a kind of slurry oil solid-liquid separation system.
On the one hand, the slurry oil equipment for separating liquid from solid that the present invention is provided includes at least one blender with each blender phase
At least one primary separator of connection, and at least one secondary filter being connected with each primary separator.
Further, the blender is auxiliary agent blender, and the auxiliary agent blender is using static mixer or venturi
Injector.
Further, the primary separator adopts cyclone separator or settlement separator.
Further, the secondary filter adopts cross-flow filter.
Further, the cross-flow filter porch is provided with inlet distributor, and inside is provided with step filter tube.
Further, including a blender, a primary separator and a secondary filter；
The blender is connected with primary separator, and the primary separator is connected with secondary filter.
Further, including a blender, a primary separator and two secondary filters；
The blender is connected with primary separator, and the primary separator is connected with two secondary filters.
Further, including a blender, two primary separators and two secondary filters；
The blender is connected with two primary separators, two primary separators respectively with two secondary filter phases
Connection.
Further, the blender, be connected by pipeline between primary separator and secondary filter, the pipeline
It is provided with the electromagnetic valve for control pipeline break-make.
On the other hand, the present invention also provides a kind of slurry oil solid-liquid separation system, including described slurry oil equipment for separating liquid from solid.
Beneficial effects of the present invention：
The invention provides a kind of slurry oil equipment for separating liquid from solid, be the Variation Features for adapting to catalytic cracked oil pulp, including to
At least one primary separator that a few blender is connected with each blender, and be connected with each primary separator
At least one logical secondary filter；The characteristics of slurry oil equipment for separating liquid from solid, is increased in existing single slurry oil filtration system
Primary separator is added.The characteristics of entirely solid-liquid separation system has simple structure, easy to operate, floor space is little, two-stage group
Close technique separation efficiency to greatly improve.In separation process, catalytic cracked oil pulp is introduced into carries out primary separator, reduces which close
Degree, solid particle, resin and asphalt content；Cascade filtration is carried out subsequently into secondary filter, slurry oil can be greatly prolonged
The cycle of operation of filtration system, and largely solve the single technique that is separated by filtration of traditional form and be difficult to meet length
The problem of the steady operation in cycle.
In addition, the slurry oil solid-liquid separation system that the present invention is provided, which includes described slurry oil equipment for separating liquid from solid, therefore its
All advantages with slurry oil equipment for separating liquid from solid, here are not just repeated.
Description of the drawings
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
Needed for embodiment or description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the first structural representation for the slurry oil equipment for separating liquid from solid that the embodiment of the present invention one is provided；
Fig. 2 is second structural representation of the slurry oil equipment for separating liquid from solid that the embodiment of the present invention one is provided；
Fig. 3 is the third structural representation for the slurry oil equipment for separating liquid from solid that the embodiment of the present invention one is provided；
Fig. 4 is that the concrete structure inside the secondary filter that the embodiment of the present invention one based on Fig. 1-Fig. 3 is provided is illustrated
Figure.
Reference：1- blenders；2- primary separators；3- secondary filters；4- step filter tubes；5- entrances
Distributor.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement
Example is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill
The every other embodiment obtained under the premise of creative work is not made by personnel, belongs to the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to description the present invention and simplify description, rather than indicate or imply indication device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment one
As Figure 1-3, the present embodiment provide slurry oil equipment for separating liquid from solid include at least one blender 1, and each
At least one primary separator 2 that blender 1 is connected, and at least one 2 grades be connected with each primary separator 2
Filter 3.
Herein it is pointed out that the purpose of blender 1 and primary separator will not be infected with order to ensure filter
Rich rhagiocrin slurry oil, it is ensured that filter tube is not blocked, while by crossflow filtration technique, whole system can be realized continuously substantially
Work, and without backwash.
Specifically, elaborate below for each concrete structure of slurry oil equipment for separating liquid from solid in the present embodiment：
For blender 1, which is auxiliary agent blender.
It is pointed out that auxiliary agent blender can be conventional static mixer, it would however also be possible to employ Venturi transmission ejector,
Preferably by Venturi transmission ejector, on the one hand can realize that auxiliary agent is quickly mixed with slurry oil, another aspect flow resistance is less.
Auxiliary agent blender can will be used for the detached auxiliary agent of Intensified catalytic cracking slurry oil granule and fully mix with slurry oil, accelerate auxiliary agent with
Granule and colloid are combined, and provide help for later separation.Auxiliary agent can typically be ionic (aliphatic quaternary ammonium salt, water solublity
Polyamine), negative ion type (polyacrylic acid, polymethylacrylic acid, sulfonated polystyrene, partially hydrogenated polyacrylamide etc.) or non-
Ion-type sedimentation agent (alkyl phenolic resin) etc..
For primary separator 2, the primary separator 2 adopts cyclone separator or settlement separator.
It is pointed out that primary separator 2 can adopt cyclone separator or settlement separator, it is preferable that using rotation
Stream separator.After adding auxiliary agent, granule is reduced with the adhesive force of slurry oil, but only relies on gravitational settling separation, it is still necessary to compared with
Long time, therefore preferably cyclone separator.Cyclone separator accelerates granule to separate by cyclonic action, efficiency high, equipment body
Product is little.Cyclonic separation method be it is a kind of than the separation method that has wide application prospects, but separating power is limited, normal quilts of Jing in practice
As pre-processing device, to mitigate the operational load of downstream separation unit.
As shown in figure 4, for secondary filter 3, the secondary filter 3 adopts cross-flow filter.The cross-flow
Inlet distributor 5 is provided with filter inlet, inside is provided with step filter tube 4.
It is pointed out that the second-order separation adopts filter, using cross-flow filter and step filter tube 4, each of which
Individual filter is connected with the cyclone separator or settlement separator, and 5 He of inlet distributor is provided with the filter
Step filter tube 4, the inlet distributor 5 mainly ensure that the flow of every filter tube is consistent, it is to avoid Partial filtration pipe occur
Failure, the filter tube is step filter tube 4, and precision must be arranged by design requirement.Step filter tube 4 is by macroporsity
The filtering layer composition of basic unit and aperture porosity, the filtering accuracy scope of the filter tube is 0.2-5 microns.Using asymmetric ladder
Level structure can effectively ensure the precision for filtering, while pressure drop is relatively low, be not easily blocked.
In order to preferably control the break-make of blender 1, primary separator 2 and secondary filter 3, the blender 1, one-level
It is connected by pipeline between separator 2 and secondary filter 3, the pipeline is provided with the electromagnetism for control pipeline break-make
Valve.
It is pointed out that whole liquid-solid separation system temperature range is 250-350 DEG C, filter pressure is 0.5-
1.2MPa, filter 3 preset highest pressure reduction for 0.20-0.35MPa.
The present embodiment has multiple combination mode, specifically, is set forth below out three kinds preferred embodiment：
As shown in figure 1, in the first alternative of the present embodiment, including 1, primary separator 2 of a blender
And a secondary filter 3；The blender 1 is connected with primary separator 2, the primary separator 2 and cascade filtration
Device 3 is connected；
As shown in Fig. 2 in second alternative of the present embodiment, including 1, primary separator 2 of a blender
And two secondary filters 3；The blender 1 is connected with primary separator 2, the primary separator 2 and two two grades
Filter 3 is connected；
As shown in figure 3, in the third alternative of the present embodiment, including 1, two primary separators 2 of a blender
And two secondary filters 3；The blender 1 is connected with two primary separators 2, two primary separators 2 respectively with
Two secondary filters 3 are connected.
It is pointed out that blender 1, primary separator 2 are with the quantity of secondary filter 3 and combination side in the present embodiment
Formula is not limited only to above-mentioned three kinds, can also derive multiple combination mode as needed, and its principle is roughly the same, and here is just not
Repeat.
Fig. 1 is continued referring to, by taking Fig. 1 as an example, the technological process of the present embodiment is：
The present embodiment includes an auxiliary agent blender, a cyclone separator or settlement separator and a cross flow filter
Device.Slurry oil is mixed with auxiliary agent at auxiliary agent blender, afterwards into cyclone separator or settlement separator, rich in solid particle
Slurry oil is discharged from the bottom of cyclone separator or settlement separator, and one-level clear liquid is entered by the inlet distributor 5 of cross-flow filter
Enter inside cross-flow filter, by passing through inside step filter tube 4, the slurry oil rich in solid particle is by cross-flow filter bottom for slurry oil
Discharge, slurry oil passes through 4 further isolated two grades of clear liquids of step filter tube.
Embodiment two
On the basis of embodiment one, the present embodiment also provides a kind of slurry oil solid-liquid separation system, including described slurry oil
Equipment for separating liquid from solid.
In this enforcement, slurry oil solid-liquid separation system is on a kind of basis of all slurry oil equipment for separating liquid from solid for referring to of embodiment
On, also including automatic control system (not shown), automatic control system is electrically connected with the solenoid valve, and is capable of automatic regulating electromagnetic valve
Open and close, the work efficiency for improving internal system saves artificial simultaneously.
The slurry oil solid-liquid separation system that the present embodiment is provided, which includes described slurry oil equipment for separating liquid from solid, therefore its tool
There are all advantages of slurry oil equipment for separating liquid from solid, here is not just repeated.
To sum up, in the present invention, the purpose of auxiliary agent auxiliary and flash trapping stage is will not to be infected with richness in order to ensure cross-flow filter
Rhagiocrin slurry oil, it is ensured that step filter tube 4 is not blocked, while by crossflow filtration technique, whole system can be realized substantially
It is continuous to work, and without backwash, advantage is：
First, the present invention adds auxiliary agent by auxiliary agent blender in slurry oil, makes catalyst granules and colloid flocculation, is follow-up
The steady operation of separative element is improved and is supported, and equipment investment and operating cost are cheap；
2nd, with the addition of auxiliary agent slurry oil enter cyclone separator or settlement separator after, in the presence of external force or gravity,
Catalyst granules and colloid occur that the slurry oil rich in catalyst is discharged, and one-level slurry oil clear liquid enters cross-flow
Filter；After one-level slurry oil clear liquid enters cross-flow filter, through the distribution of inlet distributor 5, evenly into every step mistake
Chimney filter 4, it is to avoid because the too great deviations of hydrodynamic parameters cause the failure of Partial filtration pipe, serosity and clear liquid to flow to form cross
The cross flow filter of intersection, therefore filter cake thickness can be controlled by the diameter of coutroi velocity and filter tube, simultaneously because auxiliary agent
Auxiliary and single filter have deviate from most of catalyst rich in colloid, and the step filter tube 4 of cross-flow filter blocks several
Rate very little, does not need backwash substantially；
3rd, whole technological process is improved and simple, the method for employing various solid-liquid separation, and multiple unit combinations make
With, change less on existing commercial plant, there is no technical risk, can be with the work of continuous-stable；
4th, compared to known filtration system, maximum advantage is exactly life-span length to the present invention.Existing filtration system is directed to
Slurry oil containing colloidal pitch matter can only work 3 months or so and be accomplished by changing, and the filtration system of the present invention can work 1-3
Year, reducing closure of the colloid on filter element to greatest extent affects.
The present invention can be used in the catalytic cracked oil pulp solid-liquid separation of petrochemical industry, while coalification can also be applied to
In the process of work MTO washing water.
Finally it should be noted that：Various embodiments above only to illustrate technical scheme, rather than a limitation；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of slurry oil equipment for separating liquid from solid, it is characterised in that be connected with each blender including at least one blender
At least one primary separator, and at least one secondary filter being connected with each primary separator.
2. slurry oil equipment for separating liquid from solid according to claim 1, it is characterised in that the blender is auxiliary agent blender,
The auxiliary agent blender adopts static mixer or Venturi transmission ejector.
3. slurry oil equipment for separating liquid from solid according to claim 2, it is characterised in that the primary separator is using eddy flow point
From device or settlement separator.
4. slurry oil equipment for separating liquid from solid according to claim 3, it is characterised in that the secondary filter adopts cross-flow
Filter.
5. slurry oil equipment for separating liquid from solid according to claim 4, it is characterised in that the cross-flow filter porch is provided with
Inlet distributor, inside are provided with step filter tube.
6. the slurry oil equipment for separating liquid from solid according to any one of claim 1-5, it is characterised in that including a blender,
One primary separator and a secondary filter；
The blender is connected with primary separator, and the primary separator is connected with secondary filter.
7. the slurry oil equipment for separating liquid from solid according to any one of claim 1-5, it is characterised in that including a blender,
One primary separator and two secondary filters；
The blender is connected with primary separator, and the primary separator is connected with two secondary filters.
8. the slurry oil equipment for separating liquid from solid according to any one of claim 1-5, it is characterised in that including a blender,
Two primary separators and two secondary filters；
The blender is connected with two primary separators, and two primary separators are connected with two secondary filters respectively
It is logical.
9. the slurry oil equipment for separating liquid from solid according to any one of claim 1-5, it is characterised in that the blender, one-level
It is connected by pipeline between separator and secondary filter, the pipeline is provided with the electromagnetic valve for control pipeline break-make.
10. a kind of slurry oil solid-liquid separation system, it is characterised in that including the slurry oil solid-liquid described in any one of claim 1-9 point
From device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710040356.1A CN106675626A (en) | 2017-01-18 | 2017-01-18 | Solid-liquid separation device for oil slurry and solid-liquid separation system for oil slurry |
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| CN201710040356.1A CN106675626A (en) | 2017-01-18 | 2017-01-18 | Solid-liquid separation device for oil slurry and solid-liquid separation system for oil slurry |
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Cited By (6)
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|---|---|---|---|---|
| CN109011820A (en) * | 2018-09-17 | 2018-12-18 | 中石化（洛阳）科技有限公司 | Anisotropic membrane separator and catalytic slurry equipment for separating liquid from solid |
| CN110747006A (en) * | 2019-11-27 | 2020-02-04 | 北京奥博斯工程技术有限公司 | Method for removing solid impurities in catalytic oil slurry |
| CN111589223A (en) * | 2019-02-20 | 2020-08-28 | 中国石油化工股份有限公司 | Multistage oil slurry filtering system and oil slurry filtering method |
| CN113521867A (en) * | 2021-07-27 | 2021-10-22 | 南京科赫科技有限公司 | Continuous catalytic cracking slurry oil purification device and process |
| CN115282688A (en) * | 2022-07-25 | 2022-11-04 | 中国船舶重工集团公司第七0四研究所 | Deep sea collection mine car disturbance particulate matter catches separator |
| CN115845492A (en) * | 2023-02-16 | 2023-03-28 | 湖南贵友新材料科技股份有限公司 | Multistage separation's water treatment facilities |
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| CN109011820A (en) * | 2018-09-17 | 2018-12-18 | 中石化（洛阳）科技有限公司 | Anisotropic membrane separator and catalytic slurry equipment for separating liquid from solid |
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| CN115282688A (en) * | 2022-07-25 | 2022-11-04 | 中国船舶重工集团公司第七0四研究所 | Deep sea collection mine car disturbance particulate matter catches separator |
| CN115845492A (en) * | 2023-02-16 | 2023-03-28 | 湖南贵友新材料科技股份有限公司 | Multistage separation's water treatment facilities |
| CN115845492B (en) * | 2023-02-16 | 2024-05-28 | 湖南贵友新材料科技股份有限公司 | Multistage separation's water treatment facilities |
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