CN103752182A - Ethyl cellulose pervaporation gasoline desulfurization film and preparation method thereof - Google Patents

Ethyl cellulose pervaporation gasoline desulfurization film and preparation method thereof Download PDF

Info

Publication number
CN103752182A
CN103752182A CN201410024675.XA CN201410024675A CN103752182A CN 103752182 A CN103752182 A CN 103752182A CN 201410024675 A CN201410024675 A CN 201410024675A CN 103752182 A CN103752182 A CN 103752182A
Authority
CN
China
Prior art keywords
ethyl cellulose
membrane
film
pervaporation
gasoline
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410024675.XA
Other languages
Chinese (zh)
Other versions
CN103752182B (en
Inventor
侯影飞
黄以青
吕宏凌
沙沙
李鹏
史德青
谷雅雅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Petroleum East China
Original Assignee
China University of Petroleum East China
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Petroleum East China filed Critical China University of Petroleum East China
Priority to CN201410024675.XA priority Critical patent/CN103752182B/en
Publication of CN103752182A publication Critical patent/CN103752182A/en
Application granted granted Critical
Publication of CN103752182B publication Critical patent/CN103752182B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

本发明属于材料加工领域，具体地，涉及一种乙基纤维素渗透汽化汽油脱硫膜及其制备方法。乙基纤维素渗透汽化汽油脱硫膜，由活性层和底膜复合而成，活性层为掺杂C60的乙基纤维素膜，底膜为聚偏氟乙烯膜；活性层涂膜在底膜上制得乙基纤维素渗透汽化汽油脱硫复合膜。本发明具有如下有益效果：C60可与电子云密度较高的汽油组分进行电荷转移络合，表现出较大的电子亲和力而适合于脱硫；掺杂C60的乙基纤维素复合膜对汽油组分有较高的渗透通量和选择性，从而有效地提高分离性能；经过溶剂退火处理后，C60团簇电子亲和能增加，模拟汽油组分在膜内的渗透速率增大，即渗透通量增大。

The invention belongs to the field of material processing, and in particular relates to an ethyl cellulose pervaporation gasoline desulfurization membrane and a preparation method thereof. Ethyl cellulose pervaporation gasoline desulfurization membrane is composed of an active layer and a base film. The active layer is an ethyl cellulose film doped with C60, and the base film is a polyvinylidene fluoride film; the active layer is coated on the base film. The ethyl cellulose pervaporation gasoline desulfurization composite membrane was prepared. The present invention has the following beneficial effects: C60 can carry out charge transfer complexation with gasoline components with higher electron cloud density, exhibits greater electron affinity and is suitable for desulfurization; the ethyl cellulose composite membrane doped with C60 has a good effect on gasoline components The components have higher permeation flux and selectivity, thereby effectively improving the separation performance; after solvent annealing, the electron affinity of the C60 cluster increases, and the permeation rate of the simulated gasoline components in the membrane increases, that is, the permeation flux volume increased.

Description

Ethyl cellulose permeable vaporized gasoline desulphurization membrane and preparation method thereof
Technical field
The invention belongs to material processing field, particularly, relate to a kind of ethyl cellulose permeable vaporized gasoline desulphurization membrane and preparation method thereof, utilize ethyl cellulose and C60 hydridization blending and modifying to prepare complex film for gasoline desulfurization.
Background technology
The contained organic sulfur of vehicle fuel oil is one of main pollution sources, reduce atmosphere pollution, produces clean gasoline, and the sulfur content lowering in gasoline is a key.Along with the increasingly stringent of countries in the world to the pay attention to day by day of environmental protection and environmental regulation, production low-sulfur even sweet gasoline has become a kind of development trend.
External gasoline is generally from techniques such as fluid catalytic cracking (fluid catalytic cracking, FCC) (34%), catalytic reforming (33%), alkylation, isomerization and etherificates (approximately 33%); And the gasoline of China approximately 80% carrys out catalytic cracking, because 85%～95% sulphur in gasoline is from catalytically cracked gasoline, this makes the sulfur content in gasoline product more much larger than external gasoline.Therefore the key that reduces product gasoline sulfur content is to reduce the sulfur content of catalytically cracked gasoline.Sulfide existence form in China FCC gasoline be take these four kinds of organic sulfur compounds of mercaptan, thioether, disulphide and thiophene-based as main, wherein the mass concentration of thiophene sulphur accounts for the more than 60% of total sulfur mass concentration, and the mass concentration of thioether sulphur and thiophenic sulfur accounts for the more than 85% of total sulfur.Therefore, the desulfur technology of catalytic gasoline and process exploitation mainly be take and are removed this two classes organic sulfur as main.
At present, industrial technology maturation be hydrodesulfurization, and hydrodesulfurization meeting reduces octane number.Pervaporation membrane desulfurization is to utilize fine and close high-polymer membrane gasoline component to be dissolved to the difference of diffusion, realizes a kind of membrane process that sulfide removes.Have loss of octane number less, investment cost is low, component design simply, easily operation, do not need high temperature, high pressure, the advantages such as cleanliness without any pollution, are a kind of very competitive non-hydrogasoline desulfur technologies.
By the system of selection of membrane material solubility parameter, current permeable vaporized gasoline desulphurization membrane material used mostly is dimethyl silicone polymer (PDMS), polyimides (PI), polyvinylpyrrolidone (PVP), polyureas/ammonia ester (PUU) and hybrid organic-inorganic film etc.The advantages such as it is heat-resisting, corrosion-resistant, anti-oxidant that PDMS has, but its intensity is low; PI contains rigidity aromatic ring structure, and under normal temperature, in glassy state, chemical stability and mechanical property are good; PVP has hydrophily, and good solvent is many, have strong expansion character and with the complexing power of many kinds of substance.But PI fine solvent is few, PVP segment compliance is poor, the surperficial easy formation crackle of film.PU is synthetic more difficult, and film forming condition is harsh.Therefore these 3 kinds of polymer are all difficult for masking, and application is subject to certain limitation.Ethyl cellulose is a kind of application polymer film sulfur removal material more widely, has the advantages such as high selectivity after having sufficient resource, relatively cheap price, simple filming technology, good filming performance and film forming.
Summary of the invention
For overcoming the defect of prior art, the invention provides a kind of C60 of doping and improve ethyl cellulose complex film for gasoline desulfurization by pervaporation with low cost of separating property and preparation method thereof.
For achieving the above object, the present invention adopts following proposal:
Ethyl cellulose permeable vaporized gasoline desulphurization membrane, is composited by active layer and counterdie, and active layer is the ethyl cellulose of doping C60, and its thickness is 30-50 μ m; Counterdie is Kynoar (PVDF) film, and the thickness of counterdie is 90-110 μ m, and Kynoar (PVDF) film has stronger hydrophobic performance, is the desirable supporter of osmosis vaporizing compound membrane material; Active layer is filmed and on counterdie, is made ethyl cellulose complex film for gasoline desulfurization by pervaporation.
The preparation method of above-mentioned ethyl cellulose permeable vaporized gasoline desulphurization membrane, comprises the following steps:
(1) Kynoar, Macrogol 2000,1-METHYLPYRROLIDONE are stirred 24 hours for 1:0.1-0.5:6-10 puts into 50 ℃ of waters bath with thermostatic control of round-bottomed flask in mass ratio, solution is glassy yellow, then carries out press filtration, degassed; Knifing on nonwoven, immerses in deionized water two days, puts into oven drying, obtains the polyvinylidene fluoride film that thickness is 90-110 μ m, and polyvinylidene fluoride film is the counterdie of ethyl cellulose infiltrating and vaporizing membrane;
(2) ethyl cellulose is standby after 40-60 ℃ of oven drying;
(3) C60 is joined in solvent benzol, the mass ratio of C60 and solvent benzol is 1:1000-1500, and magnetic agitation 12h, is mixed with solution;
(4) ethyl cellulose of being prepared by step (2) and crosslinking agent, initator in mass ratio 1:0.2-0.4:0.05-0.1 join in solution prepared by step (3), and magnetic agitation 12h makes casting solution;
Wherein in ethyl cellulose and step (3), the mass ratio of C60 is 1:0.005, and crosslinking agent is 1,6-hexanediyl ester, and initator is benzophenone;
(5) casting solution in step (4) is filtered with 300 object copper mesh;
(6) standing two days of the casting solution that step (5) filtered is to remove bubble;
(7) the degassed casting solution of step (6) gained is filmed on Kynoar counterdie;
(8) the UV-crosslinked 40min of composite membrane step (7) being obtained;
(9) composite membrane step (8) being obtained is put into deionized water and is carried out exchange of solvent, and obtaining active layer thickness is the ethyl cellulose infiltrating and vaporizing membrane of 30-50 μ m.
In order further to improve the separating property of ethyl cellulose permeable vaporized gasoline desulphurization membrane, preferably, the composite membrane that step (7) is obtained is placed at 60 ℃ of solvent vapo(u)r constant temperature 1h to carry out solvent annealing in process and carries out the UV-crosslinked of step (8) again.
With respect to prior art, the present invention has following beneficial effect:
1, the gasoline component that C60 can be higher with cloud density carries out electric charge Transfer Complexation, shows compared with large electron affinity and is suitable for desulfurization.
2, the ethyl cellulose composite membrane of doping C60 has higher permeation flux and selective to gasoline component, thereby effectively improves separating property.
3, after solvent annealing in process, C60 cluster electron affinity energy increases, and the infiltration rate of analog gasoline component in film increases, and permeation flux increases.
Accompanying drawing explanation
Fig. 1 is the structure chart of ethyl cellulose complex film for gasoline desulfurization by pervaporation; Upper layer film is the ethyl cellulose of doping C60, and C60 molecule moves, and assembles and forms cluster; Lower floor is polyvinylidene fluoride film, and because the exchange of top layer solvent and water is very fast, the hole of formation is less, and the Kong Ze that nexine forms is larger, and Kynoar counterdie is milipore filter.
Fig. 2 is the separating property figure of embodiment 1 composite membrane, transverse and longitudinal be designated as operating temperature (℃), ordinate is respectively two parameters that film properties is evaluated: permeation flux (kg/ (m2h)) and sulfur enrichment factor.Wherein curve be modification ethyl cellulose composite membrane permeation flux with operating temperature variation relation figure, another curve is that modification ethyl cellulose composite membrane sulfur enrichment factor is with operating temperature variation relation figure.
The specific embodiment
Embodiment mono-,
The preparation method of ethyl cellulose permeable vaporized gasoline desulphurization membrane, comprises the following steps:
(1) 60g Kynoar, 9.23g Macrogol 2000,392.3mlN-methyl pyrrolidone are put into 50 ℃ of waters bath with thermostatic control of round-bottomed flask and stirred 24 hours, solution is glassy yellow, then carries out press filtration, degassed.Use knifing machine knifing on nonwoven, the thickness of adjusting scraper is 300 μ m, and the film of scraping is immersed in deionized water two days, puts into oven drying, obtains the polyvinylidene fluoride film of 90-110 μ m, i.e. counterdie;
(2) ethyl cellulose is standby after 40-60 ℃ of oven drying;
(3) 0.04gC60 is joined in 60.68ml solvent benzol, magnetic agitation 12h, is mixed with solution;
(4) take ethyl cellulose 8g and the crosslinking agent (1 in step (2), 6-hexanediyl ester) 1.727g, initator (benzophenone) 0.432g join in solution prepared by step (3), and magnetic agitation 12h makes casting solution;
(5) casting solution in step (4) is filtered with 300 object copper mesh;
(6) standing two days of the casting solution that step (5) filtered is to remove bubble;
(7) the degassed casting solution of step (6) gained is poured on polyvinylidene fluoride film, with cover, has the even knifing of glass bar of copper wire, obtain the ethyl cellulose composite membrane of 30-50 μ m;
(8) by the complete UV-crosslinked 40min of ethyl cellulose composite membrane of step (7) solvent evaporates;
(9) composite membrane step (8) being obtained is put into deionized water and is carried out exchange of solvent, obtains ethyl cellulose permeable vaporized gasoline desulphurization membrane.
Ethyl cellulose permeable vaporized gasoline desulphurization membrane prepared by said method, as shown in Figure 1, is composited by active layer 1 and counterdie 2, and active layer is the ethyl cellulose of doping C60, and thickness is 30-50 μ m; Counterdie is Kynoar (PVDF) film, and the thickness of counterdie is 90-110 μ m, and Kynoar (PVDF) film has stronger hydrophobic performance, is the desirable supporter of osmosis vaporizing compound membrane material; Active layer is filmed and on counterdie, is made ethyl cellulose complex film for gasoline desulfurization by pervaporation.
The ethyl cellulose that is counterdie at Kynoar mutually in, C60 cluster distribution uniform, Stability Analysis of Structures, makes film have better dissolving adsorptivity to thiophene.
The evaluation of the separating property of composite membrane is undertaken by infiltration evaporation device and microcoulomb, take thiophene, toluene, cyclohexene, cyclohexane, normal heptane by volume as 1:300-400:400-500:100-200:750-850 is mixed with sulfur content as the analog gasoline of 300 μ g/g left and right.During 75 ℃ of temperature, permeation flux is 2.32, and sulfur enrichment factor is 4.72.
The separating property of prepared film within the scope of 65～85 ℃ the results are shown in Figure 2.
Embodiment bis-,
Be with the difference of embodiment mono-: the composite membrane that step (7) is obtained is placed at 60 ℃ of solvent vapo(u)r constant temperature 1h to carry out solvent annealing in process and carry out the UV-crosslinked of step (8) again; The solvent adopting is thiophene.
The evaluation of the separating property of composite membrane is with example 1, and the separating property in the time of 75 ℃ is best.Permeation flux is 4.08, and sulfur enrichment factor is 4.30.
Embodiment tri-,
Be with the difference of embodiment mono-: the composite membrane that step (7) is obtained is placed at 60 ℃ of solvent vapo(u)r constant temperature 1h to carry out solvent annealing in process and carry out the UV-crosslinked of step (8) again; The solvent adopting is benzene.
The evaluation of the separating property of composite membrane is with example 1, and the separating property in the time of 75 ℃ is best.Permeation flux is 4.85, and sulfur enrichment factor is 4.35.
Embodiment tetra-,
Be with the difference of embodiment mono-: the composite membrane that step (7) is obtained is placed at 60 ℃ of solvent vapo(u)r constant temperature 1h to carry out solvent annealing in process and carry out the UV-crosslinked of step (8) again; The solvent adopting is cyclohexene.
The evaluation of the separating property of composite membrane is with example 1, and the separating property in the time of 75 ℃ is best.Permeation flux is 5.93, and sulfur enrichment factor is 4.55.
Embodiment five,
Be with the difference of embodiment mono-: the composite membrane that step (7) is obtained is placed at 60 ℃ of solvent vapo(u)r constant temperature 1h to carry out solvent annealing in process and carry out the UV-crosslinked of step (8) again; The solvent adopting is cyclohexane.
The evaluation of the separating property of composite membrane is with example 1, and the separating property in the time of 75 ℃ is best.Permeation flux is 5.17, and sulfur enrichment factor is 4.51.
Embodiment six,
Be with the difference of embodiment mono-: the composite membrane that step (7) is obtained is placed at 60 ℃ of solvent vapo(u)r constant temperature 1h to carry out solvent annealing in process and carry out the UV-crosslinked of step (8) again; The solvent adopting is normal heptane.
The evaluation of the separating property of composite membrane is with example 1, and the separating property in the time of 75 ℃ is best.Permeation flux is 3.41, and sulfur enrichment factor is 4.53.

Claims (6)

1.一种乙基纤维素渗透汽化汽油脱硫膜，由活性层和底膜复合而成，其特征在于：活性层为掺杂C60的乙基纤维素膜，底膜为聚偏氟乙烯膜；活性层涂膜在底膜上制得乙基纤维素渗透汽化汽油脱硫复合膜。1. An ethyl cellulose pervaporation gasoline desulfurization membrane is composed of an active layer and a bottom film, and is characterized in that: the active layer is an ethyl cellulose film doped with C60, and the bottom film is a polyvinylidene fluoride film; The active layer coating film is prepared on the base film to prepare ethyl cellulose pervaporation gasoline desulfurization composite membrane. 2.根据权利要求1所述的乙基纤维素渗透汽化汽油脱硫膜，其特征在于，活性层厚度为30-50μm；底膜的厚度为90-110μm。2. The ethylcellulose pervaporation gasoline desulfurization membrane according to claim 1, characterized in that the thickness of the active layer is 30-50 μm; the thickness of the bottom membrane is 90-110 μm. 3.权利要求1所述的乙基纤维素渗透汽化汽油脱硫膜的制备方法，其特征在于，步骤如下：3. the preparation method of ethyl cellulose pervaporation gasoline desulfurization membrane described in claim 1 is characterized in that, step is as follows: (1)将聚偏氟乙烯、聚乙二醇2000、N-甲基吡咯烷酮按质量比为1:0.1-0.5:6-10放入圆底烧瓶中50℃恒温水浴搅拌24小时，溶液呈亮黄色，然后进行压滤、脱气；在无纺布上刮膜，浸入去离子水中两天，放入烘箱干燥，得到厚度为90-110μm的聚偏氟乙烯膜，聚偏氟乙烯膜为乙基纤维素渗透汽化膜的底膜；(1) Put polyvinylidene fluoride, polyethylene glycol 2000, and N-methylpyrrolidone at a mass ratio of 1:0.1-0.5:6-10 into a round-bottomed flask and stir in a constant temperature water bath at 50°C for 24 hours, and the solution turns bright Then press filter and degas; scrape the film on a non-woven fabric, immerse it in deionized water for two days, put it in an oven to dry, and obtain a polyvinylidene fluoride film with a thickness of 90-110 μm, and the polyvinylidene fluoride film is B Base film of cellulose-based pervaporation membrane; (2)将乙基纤维素在40-60℃烘箱干燥后备用；(2) drying the ethyl cellulose in an oven at 40-60°C for subsequent use; (3)将C60加入到溶剂苯中，C60与溶剂苯的质量比为1:1000-1500，磁力搅拌12h，配制成溶液；(3) C60 is added in solvent benzene, the mass ratio of C60 and solvent benzene is 1:1000-1500, and magnetic force is stirred 12h, is mixed into solution; (4)将步骤(2)制备的乙基纤维素以及交联剂、引发剂按质量比1:0.2-0.4:0.05-0.1加入到步骤(3)制备的溶液中，磁力搅拌12h制成铸膜液；(4) Add the ethyl cellulose, crosslinking agent and initiator prepared in step (2) to the solution prepared in step (3) in a mass ratio of 1:0.2-0.4:0.05-0.1, and stir magnetically for 12 hours to make a cast Membrane fluid; 其中乙基纤维素与步骤(3)中C60的质量比为1:0.005，交联剂为1,6-己二醇二丙烯酸酯，引发剂为二苯甲酮；Wherein the mass ratio of ethyl cellulose and C60 in step (3) is 1:0.005, crosslinking agent is 1,6-hexanediol diacrylate, and initiator is benzophenone; (5)将步骤(4)中的铸膜液用300目的铜网过滤；(5) the casting solution in step (4) is filtered with 300 mesh copper mesh; (6)将步骤(5)过滤的铸膜液静置两天以脱除气泡；(6) the casting solution filtered by step (5) is left to stand for two days to remove air bubbles; (7)将步骤(6)所得的脱气铸膜液涂膜在聚偏氟乙烯底膜上；(7) coating the degassed casting solution obtained in step (6) on the polyvinylidene fluoride base film; (8)将步骤(7)得到的复合膜紫外交联40min；(8) UV cross-linking of the composite film obtained in step (7) for 40min; (9)将步骤(8)得到的复合膜放入去离子水中进行溶剂交换，得到活性层厚度为30-50μm的乙基纤维素渗透汽化膜。(9) Put the composite membrane obtained in step (8) into deionized water for solvent exchange to obtain an ethylcellulose pervaporation membrane with an active layer thickness of 30-50 μm. 4.根据权利要求1所述的乙基纤维素渗透汽化汽油脱硫膜的制备方法，其特征在于：将步骤(7)得到的复合膜置于溶剂蒸汽中恒温60℃下1h进行溶剂退火处理再进行步骤(8)的紫外交联。4. The preparation method of ethyl cellulose pervaporation gasoline desulfurization membrane according to claim 1 is characterized in that: the composite membrane obtained in step (7) is placed in solvent vapor at a constant temperature of 60° C. for 1 h to carry out solvent annealing treatment and then Carry out the ultraviolet cross-linking of step (8). 5.根据权利要求3-4所述的乙基纤维素渗透汽化汽油脱硫膜的制备方法，其特征在于：所采用的溶剂为噻吩、苯、环己烯、环己烷或正庚烷。5. The preparation method of ethyl cellulose pervaporation gasoline desulfurization membrane according to claim 3-4, characterized in that: the solvent used is thiophene, benzene, cyclohexene, cyclohexane or n-heptane. 6.权利要求1所述的乙基纤维素渗透汽化汽油脱硫膜的制备方法，其特征在于，乙基纤维素渗透汽化膜用于汽油脱硫。6. The preparation method of the ethylcellulose pervaporation gasoline desulfurization membrane according to claim 1, characterized in that the ethylcellulose pervaporation membrane is used for gasoline desulfurization.
CN201410024675.XA 2014-01-20 2014-01-20 Ethyl cellulose permeable vaporized gasoline desulphurization membrane and preparation method thereof Active CN103752182B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410024675.XA CN103752182B (en) 2014-01-20 2014-01-20 Ethyl cellulose permeable vaporized gasoline desulphurization membrane and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410024675.XA CN103752182B (en) 2014-01-20 2014-01-20 Ethyl cellulose permeable vaporized gasoline desulphurization membrane and preparation method thereof

Publications (2)

Publication Number Publication Date
CN103752182A true CN103752182A (en) 2014-04-30
CN103752182B CN103752182B (en) 2016-05-18

Family

ID=50519591

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410024675.XA Active CN103752182B (en) 2014-01-20 2014-01-20 Ethyl cellulose permeable vaporized gasoline desulphurization membrane and preparation method thereof

Country Status (1)

Country Link
CN (1) CN103752182B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103990389A (en) * 2014-06-03 2014-08-20 天津工业大学 Supramolecular film and manufacturing method thereof
CN106334458A (en) * 2016-10-20 2017-01-18 合肥创想能源环境科技有限公司 Method for preparing crosslinking HEC pervaporation membrane for gasoline desulfurization
CN106422814A (en) * 2016-10-28 2017-02-22 西北大学 Sodium carboxymethylcellulose pervaporation desulfurization membrane and preparation method thereof
CN106606934A (en) * 2016-12-02 2017-05-03 中国石油大学(华东) Polyurethane pervaporation recovered solvent membrane and preparation method thereof
CN109251765A (en) * 2018-10-31 2019-01-22 中国石油大学(华东) Polyurethane/poly-vinylidene-fluoride composite film and preparation method thereof of organic sulfur compound is extracted in a kind of naphtha

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102489177A (en) * 2011-12-28 2012-06-13 厦门大学 Polydimethylsiloxane permeable vaporized gasoline desulphurization membrane and preparation method thereof
US8617395B2 (en) * 2010-09-30 2013-12-31 The United States Of America, As Represented By The Secretary Of Agriculture Thin film composite membranes and their method of preparation and use

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8617395B2 (en) * 2010-09-30 2013-12-31 The United States Of America, As Represented By The Secretary Of Agriculture Thin film composite membranes and their method of preparation and use
CN102489177A (en) * 2011-12-28 2012-06-13 厦门大学 Polydimethylsiloxane permeable vaporized gasoline desulphurization membrane and preparation method thereof

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
孔瑛等: "汽油脱硫用复合膜的制备及性能", 《高分子材料科学与工程》 *
渠慧敏等: "羟乙基纤维素/聚偏氟乙烯复合膜中支撑膜结构对渗透汽化脱硫性能的影响", 《膜科学与技术》 *
马诚等: "乙基纤维素/C60复合膜制备及气体分离性能研究", 《膜科学与技术》 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103990389A (en) * 2014-06-03 2014-08-20 天津工业大学 Supramolecular film and manufacturing method thereof
CN103990389B (en) * 2014-06-03 2016-05-25 天津工业大学 A kind of Supermolecular film and manufacture method thereof
CN106334458A (en) * 2016-10-20 2017-01-18 合肥创想能源环境科技有限公司 Method for preparing crosslinking HEC pervaporation membrane for gasoline desulfurization
CN106422814A (en) * 2016-10-28 2017-02-22 西北大学 Sodium carboxymethylcellulose pervaporation desulfurization membrane and preparation method thereof
CN106422814B (en) * 2016-10-28 2019-07-09 西北大学 A kind of sodium carboxymethylcellulose infiltration evaporation desulfurizing film and preparation method thereof
CN106606934A (en) * 2016-12-02 2017-05-03 中国石油大学(华东) Polyurethane pervaporation recovered solvent membrane and preparation method thereof
CN109251765A (en) * 2018-10-31 2019-01-22 中国石油大学(华东) Polyurethane/poly-vinylidene-fluoride composite film and preparation method thereof of organic sulfur compound is extracted in a kind of naphtha
CN109251765B (en) * 2018-10-31 2020-05-05 中国石油大学(华东) Polyurethane/polyvinylidene fluoride composite membrane for extracting organic sulfide from naphtha and preparation method thereof
US11458438B2 (en) 2018-10-31 2022-10-04 China University Of Petroleum(East China) Polyurethane/polyvinylidene fluoride composite membrane for extracting organic sulfide from naphtha and preparation method therefor

Also Published As

Publication number Publication date
CN103752182B (en) 2016-05-18

Similar Documents

Publication Publication Date Title
CN103752182A (en) Ethyl cellulose pervaporation gasoline desulfurization film and preparation method thereof
CN107349799B (en) A kind of preparation method of anti-pollution polymer-inorganic hybrid membrane
CN103721575B (en) A kind of preparation method of polysulfones flat plate ultrafiltration composite membrane
CN102886244A (en) Metal-organic framework hybrid membrane for desulfuration, and manufacturing method thereof
CN104841287B (en) A kind of preparation method of multi-functional graduation oil-water separation composite film material
CN107376673B (en) Loaded with TiO2PES ultrafiltration membrane of nanotube and preparation method and application thereof
CN106914222B (en) Adsorbent for removing liquid-phase mercury and preparation method and use method thereof
Liu et al. Highly hydrophobic cotton fabric by in-situ co-deposition of lignin/metal particles for oil/water separation
CN103464012B (en) Novel method for preparing organic-solvent-resisting polyimide nanofiltration membrane through inorganic salt pore-forming agent
CN101053789B (en) A pervaporation gasoline desulfurization polyethylene glycol composite membrane and preparation method thereof
Song et al. Preparation of PEI nanofiber membrane based on in situ and solution crosslinking technology and their adsorption properties
CN103816813A (en) Ethyecellulose pervaporation gasoline desulfurization membrane doped with MWCNTs (multiwalled carbon nanotubes) and preparing method thereof
CN104624062A (en) Polydimethylsiloxane/polyvinylidene fluoride composite film and preparation method thereof
CN108211823B (en) A polyvinyl butyral/polyacrylonitrile composite membrane for gasoline desulfurization and its preparation method
CN110272037A (en) Multi-walled carbon nanotube self-repairing control and its application in processing oily waste water
CN115895024B (en) Magnetic super-hydrophobic and oleophilic sponge with photothermal effect and preparation method and application thereof
CN106215710B (en) A kind of preparation method and application of gasoline desulfurization by pervaporation hydridization silicon fiml
CN104492384B (en) A kind of compound many groups adsorbent processed for waste oil regeneration
CN107159157A (en) Contain heavy metal ion blotting cross-linked chitosan nano fibrous membrane and preparation method thereof
CN107638813A (en) A kind of preparation method and applications of doughnut solvent resistant NF membrane
CN102489177B (en) Polydimethylsiloxane permeable vaporized gasoline desulphurization membrane and preparation method thereof
CN106731876A (en) Visible light catalytic flat-plate ultrafiltration membrane and preparation method based on dopen Nano ZnO
CN107176649B (en) A kind of method for separating 2-naphthalenesulfonic acid in waste water by iron-loaded copper macroporous resin
CN1958736B (en) A kind of gasoline desulfurization polyimide asymmetric membrane and preparation method thereof
US11458438B2 (en) Polyurethane/polyvinylidene fluoride composite membrane for extracting organic sulfide from naphtha and preparation method therefor

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant