CN105923804B - A kind of condensed water in high temperature oil removing process - Google Patents
A kind of condensed water in high temperature oil removing process Download PDFInfo
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- CN105923804B CN105923804B CN201610342747.4A CN201610342747A CN105923804B CN 105923804 B CN105923804 B CN 105923804B CN 201610342747 A CN201610342747 A CN 201610342747A CN 105923804 B CN105923804 B CN 105923804B
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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Abstract
The present invention provides a kind of condensed water in high temperature oil removing process, which includes the filtering oil removing of carrier type membrane module and active carbon filter oil removing.Condensed water in high temperature oil removing process includes carrier type membrane module filtration stage and active carbon filter oil removing stage, the specific process is as follows: (1) condensed water in high temperature injects carrier type membrane module through circulating pump by raw water box；(2) carrier type membrane module filtration stage is carried out in a manner of cross-flow filtration, crossflow velocity 0.1-5m/s, and transmembrane pressure is 0.01 ~ 0.3MPa, and membrane module filtering accuracy is 0.001-100 microns, and recycle ratio is 80% ~ 99%；(3) the active carbon filter oil removing stage is carried out in a manner of dead-end filtration, filtering velocity 3-5m/s.Compared with existing condensed water in high temperature oil removing process, the present invention has the advantage that at low cost, oil removal efficiency is high, production water meets boiler feedwater requirement and water quality is constant.
Description
Technical field
The present invention relates to a kind of condensed water in high temperature oil removing process, belong to Water warfare field.
Background technique
Chemical plant and thermal power plant mostly use hot steam as heat power, and hot steam becomes after power consumption and heat exchange
Condensed water, heat account for the 20%-30% of steam gross energy.This is a part of excellent desalination water resource, but is wherein often contained
There is micro oil, general oil content is much higher than boiler feedwater oil-containing quality standard between 1~150 ㎎/L, therefore cannot be direct
It is utilized as boiler feedwater.The difference of device and runing time leads to oil-containing species and quantity phase not to the utmost in condensed water
Together, different ways of recycling causes the oily existence in condensed water different, in addition the temperature of condensed water is higher, so as to high temperature
The processing difficulty of condensed water is very big.According to investigations, domestic major oil plant, can not due to being limited by existing oily water separation technique
Effectively the micro oil in condensed water is removed, therefore thorough treatment and recycling all are not carried out to it, except small part is used
Make heating water, the supplement water of recirculated water is largely discharged in vain, this low value is using not only causing valuable water resource
Significant wastage, polluted environment, also reduce Business Economic Benefit.And this way also brings a series of problems, such as:
1) oil-containing condensed water cannot recycle, and power station boiler just requires supplementation with a large amount of demineralized water, cause water resource and the energy
A large amount of wastes；2) since oil-containing condensed water is used for a long time as water is supplemented in heating, heating system, grease stain takes care of the pence in water, attached
In inner surface of pipeline, affect the heat transfer efficiency of heat power equipment；3) oil-containing condensed water is unprocessed, discharges on the spot, slight dirty
Environment is contaminated.
CN101092258A(2007.12.26 a kind of method using processing high temperature condensed water by integration technique of membrane) is disclosed,
Condensed water in high temperature first passes through micro-filtration or ultrafiltration membrance filter retains most of impurity and greasy dirt, passes through ion exchange resin bed again thereafter
Adsorption ionic impurity.This method water yield is small；The anti-masses hit of filter membrane is poor, easily causes the leakage of institute's adsorbent, makes
At secondary pollution.
Summary of the invention
Present invention is primarily aimed at provide a kind of condensed water in high temperature oil removing process.Compared with prior art, the present invention has
There are the advantages such as oil removal efficiency is high, producing water water quality is constant.
To reach above-mentioned technical purpose, condensed water in high temperature oil removing process of the present invention include carrier type membrane module filtration stage and
The active carbon filter oil removing stage, the specific process is as follows:
(1) condensed water in high temperature injects carrier type membrane module through circulating pump by raw water box；
(2) carrier type membrane module filtration stage is carried out in a manner of cross-flow filtration, crossflow velocity 0.1-5m/s, transmembrane pressure
For 0.01 ~ 0.3MPa, membrane module filtering accuracy is 0.001-100 microns, and recycle ratio is 80% ~ 99%；
(3) the active carbon filter oil removing stage is carried out in a manner of dead-end filtration, filtering velocity 3-5m/s.
For the deficiencies of existing oil removing process oil removal efficiency is low, producing water water quality is unstable, inventor uses carrier type film group
The method that part filtering oil removing and active carbon filter oil removing combine is resolved, carrier type membrane module single carrier type membrane module
Filtering can by condensed water in high temperature most of iron and greasy dirt filtering removal, filtering produce water in iron content meet boiler supply
The standard of water, it is crossed greasy dirt in drainage and is still slightly above boiler feedwater standard, although using secondary carrier formula membrane module mistake
Filter can go the greasy dirt in water removal, but higher cost.Active carbon filtering can absorb the filtering of single carrier type membrane module and produce in water
Most of greasy dirt, filtering produces that water meets the standard of boiler feedwater and its is low in cost.Therefore, inventor uses carrier type film
The mode that component filters and active carbon filtering combine handles condensed water in high temperature.
To reduce impact of the condensed water in high temperature to carrier type membrane module, inventor filters using cross-flow endless form, because
This membrane module transmembrane pressure is small, and production Water transport resistance is small, the working efficiency of membrane module is improved, so to water water quality requirement
Low, water resistant body impact capacity is strong.Different from carrier type membrane module filter type, inventor uses dead end in active carbon filtration stage
Filter type is filtered oil removing, can remove greasy dirt in water removal to the greatest extent using dead-end filtration mode, guarantee water produced
Water quality.
Preferably, the carrier type membrane module includes film core, film core periphery is surrounded by shell；The shell top and the bottom are equipped with
Upper and lower port, wherein upper port is connected with concentrated water outlet pipe and lower port is connected with raw water box outlet pipe；Shell side is equipped with
Filtering water outlet is simultaneously connected by pipeline with active carbon filter water inlet.
Preferably, the film core is inorganic carbon membrane film core, it includes main body, filtration channel, produces aquaporin and diversion trench.
The main body is the supporter of film filtering；The filtration channel is in a row to be distributed in main body, and every row's filtration channel is parallel to each other,
And along the longitudinally through main body of main body；Aquaporin is produced equally in a row to be distributed in main body and longitudinally extend along main body, adjacent two
It is spaced 1-10 between scheduled production aquaporin and arranges filtration channel, filtration channel is parallel to each other with aquaporin is produced；Diversion trench is provided with main body side
On wall and main body is penetrated through, is being alternatively arranged along main body longitudinal direction with same scheduled production aquaporin, the mistake produced in aquaporin is collected
Drainage.Inorganic carbon film is silicon carbide material, and heat resistance is good, the condensed water in high temperature for being suitble to treatment temperature high；In addition, selected
The contact angle of inorganic carbon membrane film core material is only 0.4 °, and oil rub resistance ability is good.
Preferably, the filtration channel inner wall is also assembled with filter layer.
Preferably, the carrier type membrane module filtering condensing water temperature is 50-120 DEG C.Carrier type membrane module, which is crossed, to be filtered out
Oil and the condensed water in high temperature that combines of active carbon filter oil removing degrease mode to oil content in the temperature of condensed water in high temperature, water
Restriction range it is all relatively wide, be suitable for all kinds of condensed water in high temperature oil removal process.
Preferably, the carrier type membrane module filtering accuracy is 0.01-3 microns.The filtering of carrier type membrane module needs to go
Most of greasy dirt, iron and other magazines in water removal, the raising of filtering accuracy facilitate lifting carrier formula membrane module filter capacity,
Removal impurity and greasy dirt to greatest extent promote producing water water quality.
Preferably, the carrier type membrane module filtering transmembrane pressure is 0.01 ~ 0.25MPa.
Preferably, active carbon used is living for cocoanut active charcoal or active fruit shell carbon or honeycomb in the active carbon filter
Property charcoal, granularity is 8-30 mesh, further preferably 16-24 mesh.Active carbon particle micropore is numerous, specific surface area is huge, therefore
With very strong physical absorption ability.Different types of active carbon is to the adsorption capacity different froms of greasy substances, wherein with coconut palm
Shell activated carbon adsorption performance is optimal.It is all removed and only has by the filtering of carrier type membrane module in view of iron most of in condensed water in high temperature
Greasy dirt content is slightly exceeded, and inventor selects to the stronger cocoanut active charcoal of greasy dirt adsorption capacity, active fruit shell carbon and honeycomb
Active carbon, preferably cocoanut active charcoal.In addition, there are some oxygen-containing functional groups on activated carbon surface non-crystallized part, pass through charcoal bed
Organic pollutant also can effectively be adsorbed by active carbon.
Preferably, the carrier type membrane module be flat inorganic charcoal membrane module comprising laid out in parallel it is flat
Inorganic carbon membrane and for seal the inorganic carbon membrane both ends and for collects production water end；
Multiple hollow ducts through diaphragm are equipped in the diaphragm plate or diaphragm of the flat inorganic carbon membrane；
The flat inorganic carbon membrane is the plate or laminated structure that cross section is in rectangle；
The hollow duct through diaphragm plate or diaphragm being arranged in the flat inorganic carbon membrane is in parallel and uniform point mutually
Cloth, hollow duct cross section is rectangle, square, round or other shapes.
Using the flat inorganic charcoal membrane module of structure of the invention, have flux high, contamination resistance is strong, to the pre- place of water inlet
Reason require it is low, it is easy to clean, the features such as film long service life.It can be used as common filtering or membrane bioreactor etc..
Preferably, the flat inorganic carbon membrane includes supporter and separating layer；
The supporter of the inorganic carbon membrane is made of the carbofrax material with larger aperture；Point of the inorganic carbon membrane
Absciss layer is the outside in diaphragm plate or diaphragm, the filter layer being made of carbofrax material.
Support body aperture is generally higher than 50 microns, and the aperture of preferably support body portion is greater than 100 microns.
Separating layer is coated on supporter by secondary coating method, according to pore size filter needs, can carry out it is primary or
Repeatedly coating.Separating layer thickness very little, with smaller pore size filter and narrow pore-size distribution.
It is highly preferred that separating layer is with a thickness of 0.05 ~ 1 micron；
Separating layer filtering accuracy includes ultrafiltration and microfiltration range, pore diameter range 20nm ~ 10 micron；It is greater than 1 in pore size filter
When micron, separating layer is completed by primary coating；
When pore size filter is less than 1 micron, separating layer is first coated on supporter by coating completion twice or repeatedly
Filter layer with 1 micron pore size, one layer is then coated on this filter layer has the filter layer for requiring pore size filter.
It is highly preferred that separating layer is with a thickness of 0.1 ~ 0.5 micron.
Supporter and separating layer two parts use same material, and two parts become same phase after high-temperature process.By
It is same material in separating layer and supporting layer, the thermal expansion coefficient of the two is identical, avoids separating layer and supporting layer in this way
Between stripping damage the problem of.
Inorganic carbon membrane of the invention uses composite inorganic Carbon Materials, has extremely low water contact angle (0.3 °), is known
Minimum value in all membrane materials (including organic film material, inorganic material film and metal membrane material), i.e., the parent of inorganic charcoal membrane material
It is aqueous best, contamination resistance highest.Meanwhile being controlled by manufacturing process, the diaphragm that porosity is more than 45% can be prepared,
So that the processing flux of inorganic carbon membrane is high, it can achieve 5 times of ceramic membrane or more.These special performances make it containing greasy dirt
In water treatment applications, show unique advantage, reduce the cost of investment of film, solve in prior art organic film and
Metal film in terms of technology or Technological Economy there are the problem of.
Membrane aperture is determined by separating layer, and it is suitable to be especially different charging by unique paint-on technique for inorganic carbon membrane
Sequence and ladder are dried, and this guarantees being precisely controlled to membrane aperture, it are made to have accurately membrane aperture and very narrow aperture
Distribution.In this way, just fundamentally ensure that the control to suspended matter particle size.Meanwhile inorganic charcoal Design of Membrane Structure uses
The design of integrated module formula, this unique structure design have high integration and excellent sealing structure, while also pole
The earth improves the integral strength of film, these features are the long period of film, stabilization and run at standard and provide guarantee.
Preferably, the separating layer is with a thickness of 0.05 ~ 1 micron；
The separating layer thickness and supporting layer thickness ratio are 1:50-100；Separating layer filtering accuracy includes ultrafiltration and microfiltration model
It encloses, pore diameter range 20nm ~ 10 micron；
Separating layer by repeatedly coating, be consequently formed the aperture of supporting layer, separating layer internal layer and separating layer outer layer by
The small bore diameter gradient of gradual change.The overall thickness of supporting layer, separating layer internal layer and separating layer outer layer is filter layer thickness.
The production aquaporin of parallelly distribute on is equipped in the flat inorganic carbon membrane of the laid out in parallel, producing aquaporin section can be with
It is square, rectangle, circle, ellipse and other polygons, producing aquaporin cross sectional shape on a diaphragm can be identical,
It is also possible to different shape.
Preferably, it is 1:1.5-20, optimization that the diaphragm thickness and flat inorganic carbon membrane, which produce aquaporin height ratio,
Ground ratio is 1:2-10.
Separating layer is by repeatedly coating, and this makes it possible to obtain the apertures of supporting layer, separating layer internal layer and separating layer outer layer gradually
The bore diameter gradient to become smaller；On the one hand film filter efficiency and flux and film backwash effect be ensure that, i.e. flux recovery rate is high,
On the other hand filtering accuracy is further increased, makes inorganic carbon membrane that there is accurately membrane aperture and very narrow pore-size distribution.In this way,
It further fundamentally ensure that the control to suspended matter particle size.Inventors have found that flat inorganic carbon membrane diaphragm thickness
It is proper with production aquaporin height ratio control, diaphragm service life and assembly life-span can be made all to be improved.Flat inorganic charcoal
If film diaphragm thickness and the productions aquaporin height ratio are too big, it is excessive to filter film thickness, produces water resistance and increases, flux drops
It is low；If the ratio is too small, inorganic carbon membrane diaphragm mechanical strength is reduced, and influences service life.Simultaneously control separating layer thickness with
The ratio and production aquaporin height of supporting layer thickness and the flat inorganic carbon membrane thickness proportion, can be such that membrane ruggedness reaches
Better demand, and make diaphragm simultaneously and membrane module designs are more conducive to solve the problems, such as that filtering film component dirt is blocked up and cleaning problem.
Inorganic carbon membrane uses unique membrane material and membrane structure.Membrane material is a kind of novel inorganic carbon composite, should
The features such as material has good hydrophilic property, and porosity is high, and chemical stability and thermal stability are high, intensity and high abrasion resistance properties.Nothing
Machine carbon membrane is a kind of anisotropic membrane, and membrane body includes film surface layer (separating layer) and macropore carrier (supporting layer) two parts, two parts
Using same material, become inorganic carbon membrane after high-temperature process.It is high since separating layer and supporting layer are same materials
Temperature processing is integrally formed the two, and the thermal expansion coefficient of the two is identical, avoids separating layer in this way and support splitting is broken
Bad problem.Since the chemical stability and corrosion resistance of membrane material are high, the film as caused by corrosion is thus overcome
The problem of integrity violations and strainability decline.
Inorganic carbon membrane of the invention uses composite inorganic Carbon Materials, has extremely low water contact angle (0.3 °), is known
Minimum value in all membrane materials (including organic film material, inorganic material film and metal membrane material), i.e., the parent of inorganic charcoal membrane material
It is aqueous best, contamination resistance highest.Meanwhile being controlled by manufacturing process, the film group with 45% porosity can be prepared
Part can achieve 5 times of ceramic membrane or more so that the processing flux of inorganic carbon membrane is high.These special performances, make it in oil-containing
In sewage treatment application, unique advantage is shown, the cost of investment for reducing film solves organic film in prior art
With metal film in terms of technology or Technological Economy there are the problem of.
Preferably, the preparation step of the supporting layer are as follows:
(1) ingredient: by certain weight ratio by two kinds of varigrained sic powders, adhesive and water, in a mixer
Mixing 0.1-5 hours, obtains pug；
(2) by prepared pug by extruder extrusion molding, extrudate size is determined by cross-head mold, is obtained
To the blank with certain outer dimension and production aquaporin size；
(3) prepared blank is 0.5-24 hours dry under room temperature ventilation condition；
(4) blank after drying at room temperature is put into calcining furnace, raises the temperature to 2000 ~ 2400 in 24 hours0C,
And kept for 1 ~ 10 hour at this temperature, room temperature then is cooled the temperature in 24 hours, obtains film supporting layer.
Preferably, the preparation step of the separating layer are as follows:
(1) sic powder, adhesive and water with certain particle size are mixed, slurry is made；
(2) film support lateral surface is uniformly coated to gained slurry；
(3) diaphragm plate after coating is 0.5-24 hours dry under room temperature ventilation condition；
(4) diaphragm plate after drying is put into calcining furnace, raises the temperature to 1800 ~ 2400 in 24 hours0C, and
It is kept for 1 ~ 10 hour at a temperature of this, then cools the temperature to room temperature in 24 hours, obtain film with supporting layer and filter layer
Unsymmetrical diaphragm.
The preparation step (2) of separating layer can use various coating methods, such as spraying, blade coating, dip-coating.It can once apply
It covers, can also repeatedly coat
Charcoal film formulation of the present invention by: silicon carbide, adhesive, water and surface modifier form, in which:
Adhesive: polymer adhesive is used, it is preferred to use polyolefins adhesive, such as polyethylene, polypropylene.
Surface modifier: hydrophilic radical organic solvent, such as ethyl alcohol, glycerine are had.
Polyolefin is light with its, inexpensive and agent of low hygroscopicity and be widely used in industrial every field.But due to it
Nonpolarity, surface can the low dyeability for resulting in it, adhesiveness, hydrophily, antistatic property and with other high molecular polymers
Or the poor compatibility of inorganic filler.The present invention uses polyolefin as adhesive, and introduces the surface modifier with hydrophilic radical,
Take on the gantry effect between water and polyolefin-based adhesive, improves the intermiscibility of present invention film batch system, both protect in this way
It has held that polyolefin polymer adhesive is light, inexpensive and agent of low hygroscopicity advantage, system intermiscibility has been in turn ensured, to guarantee this
Invent that inorganic charcoal film support is homogeneous, mechanical strength is secure；
Membrane aperture is determined by separating layer, and it is suitable to be especially different charging by unique paint-on technique for inorganic carbon membrane
Sequence and ladder are dried, and this guarantees being precisely controlled to membrane aperture, it are made to have accurately membrane aperture and very narrow aperture
Distribution.In this way, just fundamentally ensure that the control to suspended matter particle size.Meanwhile inorganic charcoal Design of Membrane Structure uses
The design of integrated module formula, this unique structure design have high integration and excellent sealing structure, while also pole
The earth improves the integral strength of film, these features are the long period of film, stabilization and run at standard and provide guarantee.
Preferably, the separating layer coating preparation is rear in the support body layer to obtain primary inorganic carbon membrane, the nothing
The preparation of machine carbon membrane includes by the inorganic carbon membrane sintering of the primary, and sintering is specifically to be warming up to 500- with the rate of 5-15 DEG C/min
550 DEG C and 0.3-0.5h is kept the temperature, is then warming up to 800-1000 DEG C with the rate of 10-20 DEG C/min again and keeps the temperature 0.5-0.8h and obtain
Obtain inorganic charcoal plate membrane finally.
Further control sintering process, can reach better film properties: effective operating flux can reach traditional ceramics film
5 times or more, the contact angle of surface layer UF membrane layer and water is only up to 0.3 °, and good hydrophilic property, oil resistant class pollution capacity is strong, water inlet
Middle suspended matter and oil pollutant can achieve 10mg/L or more；Place is filtered using the cross-flow filtration mode of low crossflow velocity
Reason is effectively prevented from oil pollution and carrys out water slug to influence caused by film itself, and filtering accuracy is high, suspended solids partial size
Intermediate value≤1 micron.
Preferably, further including 3-5 parts by weight silane coupling agent or aluminate coupling agent in the coating liquid solvent.
Preferably, further including 0.6-1.5 parts by weight irgasfos 168 in the coating liquid solvent.
Preferably, the composition of the supporting layer and/or separating layer by weight are as follows:
Aggregate: 42-48 parts of coal dust, 12-14 parts of phenolic resin, 23-28 parts of white carbon black, 5-9 parts of bentonite, kaolin 4- is burnt
8 parts；
Pore former: 0.5-1 parts of camwood knag, 0.3-0.8 parts of snake mountain flour；
Additive: 1.2-1.6 parts of copper nitrate, the silane-modified silica of two sample of dimethyl or fatty acid modified carbon
Sour calcium 2.5-3.2 parts；
Dispersing agent: 0.8-1.2 parts of lecithin.
It is highly preferred that the preparation step of the supporting layer and/or separating layer are as follows:
(1) ingredient: by weight preparation white carbon black 15-20 parts, 26-28 parts of coal dust, 0.6-0.8 parts of camwood knag；
(2) coating liquid solvent is prepared: by glycerine, ethylene glycol and 1,4-butanediol 11-14:10-15:20- by volume
26 weigh mixing；
(3) separating layer slurry preparation: described coal dust 26-28 parts being first added in the coating liquid solvent and mixes 2-4min,
Then the camwood knag 0.6-0.8 parts of additions are mixed into 1-3min, the white carbon black 15-20 parts of additions is finally mixed into 8-
12min obtains uniform separating layer slurry；
(4) separating layer slurry coats: by the separating layer slurry even application in the support body layer, then first existing
75-85 DEG C of drying 3-4h, then separating layer is obtained in 130-140 DEG C of drying 1.5-2h.
It is highly preferred that further including 3.5-4.5 parts by weight silane coupling agent or aluminate coupling agent in the coating liquid solvent；
It further include 0.9-1.1 parts by weight irgasfos 168 in the coating liquid solvent.
It is highly preferred that being sealed and consolidating by epoxy glue, Polyurethane, glass cement between the inorganic carbon membrane and end
It is fixed.
In conclusion the invention has the following advantages:
1, present invention process is in such a way that carrier type membrane module filters and active carbon filtering combines to condensed water in high temperature
It is filtered, filtering producing water water quality is stable and meets the standard of boiler feedwater, and its cost is far below multiple carrier type film group
Part filtering.
1, inorganic carbon membrane selected in present invention process is charing silicon material, is resistant to warm high temperature, is suitable as locating
Manage the filter membrane of condensed water in high temperature；Film core pore size filter narrowly distributing, film packed density are high, filtration channel, production on unit area
Aquaporin is more, and membrane area is big in unit volume, and water yield is big.
2, carrier type membrane module filtration stage of the present invention is filtered using cross-current flow, improves the punching of membrane module water resistant body
Ability is hit, pollution of the greasy dirt to film itself is effectively prevented, requirement of the carrier type membrane module filtering to water water quality is reduced, increases
Its strong applicability.
3, carrier type membrane module filtering accuracy is high, has stronger filtering efficiency, and it is solidifying can to remove high temperature to greatest extent
Greasy dirt, iron and impurity in bearing water, facilitate subsequent active carbon filtering, and extend active carbon uses the time.
4, active carbon particle micropore is numerous, specific surface area is huge, therefore has very strong physical absorption ability.When high temperature is solidifying
It bears water through active carbon, active carbon can utmostly adsorb greasy dirt in water；In addition, having on activated carbon surface non-crystallized part
Oxygen-containing functional group can effectively adsorb organic pollutant, guarantee that producing water water quality is stablized.
5, the active carbon selected has stronger greasy dirt adsorption capacity, after the filtering of carrier type membrane module in condensed water in high temperature
Most of impurity, greasy dirt and metal ion are removed, and filtering produces water and only has oil content one standard for being unsatisfactory for boiler feedwater,
Therefore the active carbon selected has greasy dirt adsorption capacity outstanding, produces the mark that water oil content meets boiler feedwater to ensure that
It is quasi-.
6, plate type membrane assembly Membrane Filtration Flux is high, low to water inlet pre-processing requirements, and filtering accuracy is high；
7, plate type membrane assembly chemical stability and corrosion resistance are high, and resistant is stifled, and backwash flux recovery rate is high, use
Service life is long.
Figure of description
Fig. 1 is a kind of inorganic schematic diagram of charcoal plate membrane of the present invention；
Fig. 2 is a kind of inorganic schematic diagram of charcoal plate membrane of the present invention；
Fig. 3 is a kind of inorganic schematic diagram of charcoal plate membrane of the present invention；
Fig. 4 is the flat inorganic carbon membrane component diagram of the present invention；
Fig. 5 is a kind of inorganic schematic diagram of charcoal plate membrane internal structure of the present invention；
Fig. 6 is a kind of inorganic schematic diagram of charcoal plate film assembly internal structure of the present invention；
Fig. 7 is a kind of inorganic schematic diagram of charcoal plate film assembly internal structure of the present invention；
Fig. 8 is a kind of inorganic schematic diagram of charcoal plate film assembly of the present invention；
Fig. 9 is the flow diagram of preparation process of the inorganic charcoal plate membrane supporting layer of the present invention a kind of；
Figure 10 is a kind of condensed water in high temperature oil removing process flow chart；
Figure 11 is the carrier film component diagram of embodiment nine-ten one；
Figure 12 is film core stereoscopic schematic diagram.
Specific embodiment
The realization, functional characteristics and beneficial effect of the object of the invention are further illustrated below in conjunction with specific embodiments and drawings
Fruit.This specific embodiment is only explanation of the invention, is not limitation of the present invention, and those skilled in the art are readding
It can according to need the modification that not creative contribution is made to the present embodiment after running through this specification, but as long as of the invention
All by the protection of Patent Law in scope of the claims.
As shown in figs. 1-9, flat inorganic charcoal membrane module includes the inorganic carbon membrane of laid out in parallel and inorganic for sealing
Carbon membrane both ends and the end for being used to collect production water；Multiple hollow flows through diaphragm are equipped in the diaphragm plate or diaphragm of inorganic carbon membrane
Road；Inorganic carbon membrane is the laminated structure that cross section is in rectangle；Inorganic carbon membrane includes supporting layer and separating layer.Inorganic carbon membrane and end
Between be sealed and fix by epoxy glue, Polyurethane, glass cement.Production aquaporin in component can be square, circle
Or hexagon.
Embodiment one
Inorganic carbon membrane includes supporting layer and separating layer；
Separating layer is with a thickness of 0.05 micron；
Separating layer pore size filter is 20nm；
The composition of supporting layer by weight are as follows:
Aggregate: 40 parts of coal dust, 10 parts of phenolic resin, 20 parts of white carbon black, 5 parts of bentonite, 8 parts of kaolin are burnt；
Pore former: 0.5 part of camwood knag, 0.3 part of snake mountain flour；
Additive: 1 part of copper nitrate, silane-modified 2 parts of silica of two sample of dimethyl；
Dispersing agent: 0.8 part of lecithin.
The preparation step of separating layer are as follows:
Ingredient: by weight preparation 15 parts of white carbon black, 25 parts of coal dust, 0.5 part of camwood knag；
Coating liquid solvent is prepared: by glycerine, ethylene glycol and 1,4-butanediol, 10:8:30 weighs mixing by volume；
Separating layer slurry preparation: 25 parts of coal dust are first added in coating liquid solvent and mixes 2min, then by 0.5 part of camwood knag
Mixing 1min is added, 15 parts of additions of white carbon black are finally mixed into 8min, obtain uniform separating layer slurry；
The coating of separating layer slurry: by separating layer slurry even application on supporting layer 11, then first in 70 DEG C of drying 2h, then
Separating layer 12 is obtained in 120 DEG C of drying 1h.
Separating layer coating preparation is rear on supporting layer to obtain primary inorganic carbon membrane, and the preparation of inorganic carbon membrane includes by primary nothing
Machine carbon membrane sintering, sintering be specifically be warming up to 500-550 DEG C with the rate of 5-15 DEG C/min and keep the temperature 0.3-0.5h, then again with
The rate of 10-20 DEG C/min, which is warming up to 800-1000 DEG C and keeps the temperature 0.5-0.8h, obtains final inorganic charcoal plate membrane.
Embodiment two
Inorganic carbon membrane includes supporting layer and separating layer；
Separating layer is with a thickness of 1 micron；
Separating layer pore size filter is 10 microns；
The composition of supporting layer by weight are as follows:
Aggregate: 50 parts of coal dust, 15 parts of phenolic resin, 30 parts of white carbon black, 9 parts of bentonite, 4 parts of kaolin are burnt；
Pore former: 1 part of camwood knag, 0.8 part of snake mountain flour；
Additive: 2 parts of copper nitrate, 4 parts of fatty acid modified calcium carbonate；
Dispersing agent: 1.2 parts of lecithin.
The preparation step of separating layer are as follows:
Ingredient: by weight preparation 20 parts of white carbon black, 30 parts of coal dust, 1 part of camwood knag；
Coating liquid solvent is prepared: by glycerine, ethylene glycol and 1,4-butanediol, 15:16:18 weighs mixing by volume；
Separating layer slurry preparation: 30 parts of coal dust are first added in coating liquid solvent and mixes 4min, then adds 1 part of camwood knag
Enter and mix 3min, 20 parts of additions of white carbon black are finally mixed into 12min, obtain uniform separating layer slurry；
The coating of separating layer slurry: by separating layer slurry even application on supporting layer, then first in 90 DEG C of drying 5h, then
150 DEG C of drying 3h obtain separating layer.
Separating layer coating preparation is rear on supporting layer to obtain primary inorganic carbon membrane, and the preparation of inorganic carbon membrane 1 includes will be primary
The sintering of inorganic carbon membrane, sintering are specifically to be warming up to 550 DEG C with the rate of 15 DEG C/min and keep the temperature 0.5h, then again with 10-20 DEG C/
The rate of min, which is warming up to 1000 DEG C and keeps the temperature 0.8h, obtains final inorganic charcoal plate membrane.
Embodiment three
Inorganic carbon membrane includes supporting layer and separating layer；
Separating layer is with a thickness of 0.05 micron；
Separating layer thickness and supporting layer thickness ratio are 1:100；Separating layer pore size filter 20nm；
Separating layer by repeatedly coating, the aperture of the layer that is thus supported, separating layer internal layer and separating layer outer layer by
The small bore diameter gradient of gradual change；
It is formed between the flat inorganic carbon membrane of laid out in parallel and inorganic carbon membrane and produces aquaporin, flat inorganic charcoal film thickness
It is 1:4 with aquaporin height ratio is produced.
The composition of supporting layer by weight are as follows:
Aggregate: 45 parts of coal dust, 13 parts of phenolic resin, 22 parts of white carbon black, 6 parts of bentonite, 5 parts of kaolin are burnt；
Pore former: 0.8 part of camwood knag, 0.5 part of snake mountain flour；
Additive: 1.2 parts of copper nitrate, silane-modified 3 parts of silica of two sample of dimethyl；
Dispersing agent: 0.9 part of lecithin.
The preparation step of separating layer are as follows:
Ingredient: by weight preparation 18 parts of white carbon black, 28 parts of coal dust, 0.8 part of camwood knag；
Coating liquid solvent is prepared: by glycerine, ethylene glycol and 1,4-butanediol, 11:10:20 weighs mixing by volume；
Separating layer slurry preparation: 28 parts of coal dust are first added in coating liquid solvent and mixes 3min, then by 0.8 part of camwood knag
Mixing 2min is added, 18 parts of additions of white carbon black are finally mixed into 10min, obtain uniform separating layer slurry；
The coating of separating layer slurry: by separating layer slurry even application on supporting layer, then first in 79 DEG C of drying 3h, then
140 DEG C of drying 2h obtain separating layer 12.
Separating layer coating preparation is rear on supporting layer to obtain primary inorganic carbon membrane, and the preparation of inorganic carbon membrane includes by primary nothing
Machine carbon membrane is sintered, sintering be specifically be warming up to 530 DEG C with the rate of 10 DEG C/min and keep the temperature 0.4h, then again with 15 DEG C/
The rate of min, which is warming up to 900 DEG C and keeps the temperature 0.6h, obtains final inorganic charcoal plate membrane.
Example IV
Inorganic carbon membrane includes supporting layer and separating layer；
Separating layer is with a thickness of 1 micron；
Separating layer thickness and supporting layer thickness ratio are 1:50；10 microns of separating layer pore size filter；
Separating layer by repeatedly coating, the aperture of the layer that is thus supported, separating layer internal layer and separating layer outer layer by
The small bore diameter gradient of gradual change；
It is formed between the flat inorganic carbon membrane of laid out in parallel and inorganic carbon membrane and produces aquaporin, flat inorganic charcoal film thickness
It is 1:20 with aquaporin height ratio is produced.
Remaining same example IV, the difference is that further including that 3 parts by weight silane coupling agents or Aluminate are even in coating liquid solvent
Join agent；It further include 0.6 parts by weight irgasfos 168 in coating liquid solvent；
The composition of supporting layer by weight are as follows:
Aggregate: 42 parts of coal dust, 12 parts of phenolic resin, 23 parts of white carbon black, 5 parts of bentonite, 4 parts of kaolin are burnt；
Pore former: 0.5 part of camwood knag, 0.3 part of snake mountain flour；
Additive: 1.2 parts of copper nitrate, silane-modified 2.5 parts of silica of two sample of dimethyl；
Dispersing agent: 0.8 part of lecithin.
The preparation step of separating layer are as follows:
Ingredient: by weight preparation 15 parts of white carbon black, 26 parts of coal dust, 0.6 part of camwood knag；
Coating liquid solvent is prepared: by glycerine, ethylene glycol and 1,4-butanediol, 11:10:20 weighs mixing by volume；
Separating layer slurry preparation: 26 parts of coal dust are first added in coating liquid solvent and mixes 2min, then by 0.6 part of camwood knag
Mixing 1-3min is added, 15 parts of additions of white carbon black are finally mixed into 8-12min, obtain uniform separating layer slurry；
The coating of separating layer slurry: by separating layer slurry even application on supporting layer, then first in 75 DEG C of drying 3h, then
130 DEG C of drying 1.5h obtain separating layer.
Embodiment five
Inorganic carbon membrane includes supporting layer and separating layer；
Separating layer is with a thickness of 0.08 micron；
Separating layer thickness and supporting layer thickness ratio are 1:80；1 micron of separating layer pore size filter；
Separating layer by repeatedly coating, the aperture of the layer that is thus supported, separating layer internal layer and separating layer outer layer by
The small bore diameter gradient of gradual change；
It is formed between the flat inorganic carbon membrane of laid out in parallel and inorganic carbon membrane and produces aquaporin, flat inorganic charcoal film thickness
It is 1:8 with aquaporin height ratio is produced.
Remaining same example IV, the difference is that further including 4.5 parts by weight silane coupling agents or Aluminate in coating liquid solvent
Coupling agent further includes 1.1 parts by weight irgasfos 168s in coating liquid solvent.
It further include 5 parts by weight silane coupling agents or aluminate coupling agent in coating liquid solvent；Further include in coating liquid solvent
1.5 parts by weight irgasfos 168s；
The composition of supporting layer by weight are as follows:
Aggregate: 48 parts of coal dust, 14 parts of phenolic resin, 28 parts of white carbon black, 9 parts of bentonite, 8 parts of kaolin are burnt；
Pore former: 1 part of camwood knag, 0.8 part of snake mountain flour；
Additive: 1.6 parts of copper nitrate, 3.2 parts of fatty acid modified calcium carbonate；
Dispersing agent: 1.2 parts of lecithin.
The preparation step of separating layer 12 are as follows:
Ingredient: by weight preparation 20 parts of white carbon black, 28 parts of coal dust, 0.8 part of camwood knag；
Coating liquid solvent is prepared: by glycerine, ethylene glycol and 1,4-butanediol, 14:15:26 weighs mixing by volume；
Separating layer slurry preparation: 28 parts of coal dust are first added in coating liquid solvent and mixes 4min, then by 0.8 part of camwood knag
Mixing 1-3min is added, 15-20 parts of additions of white carbon black are finally mixed into 8-12min, obtain uniform separating layer slurry；
The coating of separating layer slurry: by separating layer slurry even application on supporting layer, then first in 85 DEG C of drying 3-4h, then
Separating layer is obtained in 140 DEG C of drying 2h.
Through detecting, film properties: effective operating flux can reach 5 times of traditional ceramics film or more, surface layer UF membrane layer and water
Contact angle be only up to 0.3 °, good hydrophilic property, oil resistant class pollution capacity is strong, and suspended matter and oil pollutant can reach in water inlet
To 10mg/L or more；Processing is filtered using the cross-flow filtration mode of low crossflow velocity, be effectively prevented from oil pollution and is come
Water slug is influenced on caused by film itself, and filtering accuracy is high, suspended solids median particle size≤1 micron.
Embodiment six
The preparation step of supporting layer unlike as in the first embodiment, are as follows:
(1) ingredient: by certain weight ratio by two kinds of varigrained sic powders, adhesive and water, in a mixer
Mixing 0.1 hour, obtains the pug with viscosity；
(2) by prepared pug by extruder extrusion molding, extrudate size is determined by cross-head mold, is obtained
To the blank with certain outer dimension and production aquaporin size；
(3) prepared blank is 0.5 hour dry under room temperature ventilation condition；
(4) blank after drying at room temperature is put into calcining furnace, raises the temperature to 2000 in 24 hours0C, and herein
At a temperature of kept for 1 hour, then cool the temperature to room temperature in 24 hours, obtain film supporting layer.
The preparation step of separating layer are as follows:
(1) sic powder, adhesive and water with certain particle size are mixed, slurry is made；
(2) film support lateral surface is uniformly coated to gained slurry；
(3) diaphragm plate after coating is 0.5 hour dry under room temperature ventilation condition；
(4) diaphragm plate after drying is put into calcining furnace, raises the temperature to 1800 in 24 hours0C, and in this temperature
It is lower to be kept for 1 hour, room temperature then is cooled the temperature in 24 hours, obtains the asymmetric membrane that film has supporting layer and filter layer
Piece.
Embodiment seven
With embodiment three, the difference is that the preparation step of supporting layer are as follows:
(1) ingredient: by certain weight ratio by two kinds of varigrained sic powders, adhesive and water, in a mixer
Mixing 5 hours, obtains the pug with viscosity；
(2) by prepared pug by extruder extrusion molding, extrudate size is determined by cross-head mold, is obtained
To the blank with certain outer dimension and production aquaporin size；
(3) prepared blank is 24 hours dry under room temperature ventilation condition；
(4) blank after drying at room temperature is put into calcining furnace, raises the temperature to 2400 in 24 hours0C, and herein
At a temperature of kept for 10 hours, then cool the temperature to room temperature in 24 hours, obtain film supporting layer.
The preparation step of separating layer are as follows:
(1) sic powder, adhesive and water with certain particle size are mixed, slurry is made；
(2) film support lateral surface is uniformly coated to gained slurry；
(3) diaphragm plate after coating is 0.5-24 hours dry under room temperature ventilation condition；
(4) diaphragm plate after drying is put into calcining furnace, raises the temperature to 2400 in 18 hours0C, and in this temperature
It is lower to be kept for 10 hours, room temperature then is cooled the temperature in 24 hours, obtains the asymmetric membrane that film has supporting layer and filter layer
Piece.
Embodiment eight
The preparation step of supporting layer unlike as in the first embodiment, are as follows:
(1) ingredient: by certain weight ratio by two kinds of varigrained sic powders, adhesive and water, in a mixer
Mixing 3 hours, obtains the pug with viscosity；
(2) by prepared pug by extruder extrusion molding, extrudate size is determined by cross-head mold, is obtained
To the blank with certain outer dimension and production aquaporin size；
(3) prepared blank is 4 hours dry under room temperature ventilation condition；
(4) blank after drying at room temperature is put into calcining furnace, raises the temperature to 2300 in 16 hours0C, and herein
At a temperature of kept for 5 hours, then cool the temperature to room temperature in 24 hours, obtain film supporting layer.
The preparation step of separating layer are as follows:
(1) sic powder, adhesive and water with certain particle size are mixed, slurry is made；
(2) film support lateral surface is uniformly coated to gained slurry；
(3) diaphragm plate after coating is 0.5-24 hours dry under room temperature ventilation condition；
(4) diaphragm plate after drying is put into calcining furnace, raises the temperature to 1900 in 24 hours0C, and at this temperature
It is kept for 6 hours, then cools the temperature to room temperature in 24 hours, obtain the unsymmetrical diaphragm that film has supporting layer and filter layer.
The flat inorganic charcoal membrane module application that the inorganic charcoal plate membrane of one-embodiment of the embodiment of the present invention eight is assembled into
Performance in condensed water in high temperature oil removing process, which compares, sees Tables 1 and 2.
Table 1 handles the comparison of condensed water in high temperature oil removing filter effect
Table 2 handles condensed water in high temperature oil removing filtering backwash and chemical cleaning Contrast on effect
As shown in figs. 10-12, carrier type membrane module includes film core 1, and 1 periphery of film core is surrounded by shell 2；2 top and the bottom of shell are set
There is upper and lower port, wherein upper port 3 is connected with concentrated water outlet pipe 6 and lower port 4 is connected with raw water box outlet pipe 5；2 side of shell
Face is equipped with filtering water outlet 7 and is connected by pipeline with active carbon filter water inlet.Film core 1 is inorganic carbon membrane film core, it
Including main body 11, filtration channel 12, produce aquaporin 13 and diversion trench 14.
Embodiment nine
As shown in figs. 10-12, the condensed water in high temperature water temperature in raw water box is 120 DEG C, and oil content is 21.5mg/L in water；It is logical
It crosses circulating pump and injects the condensed water in high temperature in raw water box wherein, with cross-current flow by carrier type membrane module filter device lower port
It is filtered, crossflow velocity 0.1m/s, transmembrane pressure 0.001MPa；Concentrated water drainage is adjusted, so that carrier type membrane module filters
The water yield of processing is 80%.The filtering accuracy of inorganic carbon film is 0.001 micron in carrier type membrane module.Carrier type membrane module mistake
Filter production water is passed through active carbon filter by production water export mouth and is filtered, and active carbon filtering is carried out in a manner of dead-end filtration；It is used
Active carbon is cocoanut active charcoal, and granularity is 8 mesh；Water is produced to flow out from active carbon filter water outlet.
Such as according to " measurement of boiler feed water and cooling water analysis method oil " (GB/T12153-1989) measurement producing water water quality
Under:
Table 3
Embodiment ten
As shown in figs. 10-12, the condensed water in high temperature in raw water box is by circulating pump by carrier type membrane module filter device
Lower port enters, and water temperature is 100 DEG C, and oil content is 42.7mg/L in water；The filtering accuracy of inorganic carbon film in carrier type membrane module
It is 0.3 micron, is filtered with cross-current flow, crossflow velocity 3m/s, transmembrane pressure 0.03MPa, producing the water rate of recovery is
90%.The filtering of carrier type membrane module produces water and is passed through active carbon filter, and active carbon used is cocoanut active charcoal, active carbon particle degree
For 18 mesh；Active carbon filtering is carried out in a manner of dead-end filtration, is produced water and is flowed out from active carbon filter water outlet.
It is as follows according to " measurement of boiler feed water and cooling water analysis method oil " (GB/T12153-1989) measurement producing water water quality:
Table 4
Embodiment 11
As shown in figs. 10-12, the condensed water in high temperature in raw water box is by circulating pump by carrier type membrane module filter device
Lower port enters, and water temperature is 100 DEG C, and oil content is 68.2mg/L in water；The filtering accuracy of inorganic carbon film in carrier type membrane module
It is 0.3 micron, is filtered with cross-current flow, crossflow velocity 5m/s, transmembrane pressure 0.3MPa, producing the water rate of recovery is 80%.
Carrier type membrane module filtering production water is passed through active carbon filter by production water export mouth and is filtered, and active carbon is filtered with dead-end filtration
Mode carries out；Active carbon used is cocoanut active charcoal, and granularity is 30 mesh；Water is produced to flow out from active carbon filter water outlet.
It is as follows according to " measurement of boiler feed water and cooling water analysis method oil " (GB/T12153-1989) measurement producing water water quality:
Table 5
Comparative example 1
The condensed water in high temperature that water temperature is 80 DEG C is injected in filter device, it is solidifying to high temperature using channel tubular type ceramic micro filter film
It bears water and is filtered, membrane area 0.5m2.Filtering is carried out by the way of dead-end filtration.The water produced ion that is passed through will be filtered to hand over
It changes resin bed to be absorbed and filter, water velocity 8m/h.
It is as follows according to " measurement of boiler feed water and cooling water analysis method oil " (GB/T12153-1989) measurement producing water water quality:
Table 6
It is solidifying that the water quality that filtering produces water from embodiment and comparative example can be seen that the high temperature filtered using this technique
It bears water and is substantially better than comparative example in the indexs such as suspension content, oil content and COD.In addition, comparative example uses
Ceramic micro filter film and ion exchange resin bed, cost are higher than embodiment.
Claims (9)
1. a kind of condensed water in high temperature oil removing process, it is characterised in that: the condensed water in high temperature oil removing process includes carrier type film group
Part filtration stage and active carbon filter oil removing stage, the specific process is as follows:
(1) condensed water in high temperature injects carrier type membrane module through circulating pump by raw water box；
(2) carrier type membrane module filtration stage is carried out in a manner of cross-flow filtration, crossflow velocity 0.1-5m/s, and transmembrane pressure is
0.01 ~ 0.3MPa, membrane module filtering accuracy are 0.001-100 microns, and recycle ratio is 80% ~ 99%；
(3) the active carbon filter oil removing stage is carried out in a manner of dead-end filtration, filtering velocity 3-5m/s；
The carrier type membrane module is flat inorganic charcoal membrane module, it includes the flat inorganic carbon membrane of laid out in parallel and is used for
Seal the inorganic carbon membrane both ends and for collecting the end for producing water；
The flat inorganic carbon membrane includes support body layer and separating layer；
The preparation step of the separating layer are as follows:
(1) ingredient: by weight preparation white carbon black 15-20 parts, 25-30 parts of coal dust, 0.5-1 parts of camwood knag；
(2) coating liquid solvent is prepared: by glycerine, ethylene glycol and 1,4-butanediol, 10-15:8-16:18-30 is weighed by volume
Mixing；
(3) separating layer slurry preparation: described coal dust 25-30 parts are first added in the coating liquid solvent and mixes 2-4min, then
The camwood knag 0.5-1 parts of additions are mixed into 1-3min, the white carbon black 15-20 parts of additions are finally mixed into 8-12min, are obtained
Uniform separating layer slurry；
(4) separating layer slurry coats: by the separating layer slurry even application in the support body layer, then first in 70-90
DEG C drying 2-5h, then in 120-150 DEG C of drying 1-3h acquisition separating layer.
2. a kind of condensed water in high temperature oil removing process as described in claim 1, it is characterised in that: the carrier type membrane module includes film
Core (1), film core (1) periphery are surrounded by shell (2)；Shell (2) top and the bottom be equipped with upper and lower port, wherein upper port (3) with it is dense
Water outlet pipe (6) is connected and lower port (4) is connected with raw water box outlet pipe (5)；Shell (2) side is equipped with filtering water outlet
(7) and by pipeline with active carbon filter water inlet it is connected.
3. a kind of condensed water in high temperature oil removing process as claimed in claim 2, it is characterised in that: the film core (1) is inorganic carbon membrane
Film core, it includes main body (11), filtration channel (12), produces aquaporin (13) and diversion trench (14).
4. a kind of condensed water in high temperature oil removing process as described in claim 1, it is characterised in that:
Multiple hollow ducts through diaphragm are equipped in the diaphragm plate or diaphragm of the flat inorganic carbon membrane；
The flat inorganic carbon membrane is the plate or laminated structure that cross section is in rectangle；
The hollow duct through diaphragm plate or diaphragm being arranged in the flat inorganic carbon membrane is in parallel and is uniformly distributed mutually, in
Empty flow channel cross-section is rectangle, square, round or other shapes.
5. a kind of condensed water in high temperature oil removing process as described in claim 1, it is characterised in that: the carrier type membrane module filtering is solidifying
Bearing water temperature is 50-120 DEG C.
6. a kind of condensed water in high temperature oil removing process as described in claim 1, it is characterised in that: the carrier type membrane module filtering essence
Degree is 0.01-3 microns.
7. a kind of condensed water in high temperature oil removing process as described in claim 1, it is characterised in that: used in the active carbon filter
Active carbon is cocoanut active charcoal or active fruit shell carbon or cellular activated carbon, and granularity is 8-30 mesh.
8. a kind of condensed water in high temperature oil removing process as claimed in claim 4, it is characterised in that:
The separating layer of the inorganic carbon membrane is the outside in diaphragm plate or diaphragm, the filter layer being made of carbofrax material；
The separating layer is with a thickness of 0.05 ~ 1 micron；
Separating layer filtering accuracy includes ultrafiltration and microfiltration range, pore diameter range 20nm ~ 10 micron；
When pore size filter is greater than 1 micron, separating layer is completed by primary coating；
When pore size filter is less than 1 micron, separating layer is that tool is first coated in support body layer by coating completion twice or repeatedly
There is the filter layer of 1 micron pore size, one layer is then coated on this filter layer has the filter layer for requiring pore size filter.
9. a kind of condensed water in high temperature oil removing process as claimed in claim 8, it is characterised in that: the separating layer is with a thickness of 0.05 ~ 1
Micron；
The separating layer thickness and support body layer thickness ratio are 1:50-100；Separating layer filtering accuracy includes ultrafiltration and microfiltration model
It encloses, pore diameter range 20nm ~ 10 micron；
Separating layer is by repeatedly coating, and the aperture of be thus supported body layer, separating layer internal layer and separating layer outer layer is gradually
The bore diameter gradient to become smaller；
It is formed between the flat inorganic carbon membrane of the laid out in parallel and inorganic carbon membrane and produces aquaporin, the flat inorganic carbon membrane
Thickness and the production aquaporin height ratio are 1:1.5-20.
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