Metal-organic framework hybrid membrane for desulfuration, and manufacturing method thereof

A metal-organic framework, hybrid membrane technology, applied in the directions of alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc. and other problems, to achieve the effect of good solvent resistance, fast process speed and simple method

Inactive Publication Date: 2013-01-23
TIANJIN POLYTECHNIC UNIV
View PDF6 Cites 39 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the IRVAD adsorption process are: the adsorbent has a low sulfur capacity, requires frequent regeneration, and has a short service life, and needs to be regularly replenished with fresh adsorbents [Gu Tao, Mu Xuhong, Chen Xibo, Progress in Chemical Industry, 2005, 24 (1): 90~95]
The adsorbent circulates between the reactor and the regenerator, the process has good selectivity, and can achieve the purpose of deep desulfurization, but the process is complicated and the operation cost is high [Zhang Jingcheng, Liu Yunqi, An Gaojun, Progress in Chemistry, 2008, 20(11 ): 1834~18459]
At the same time, the above-mentioned adsorption desulfurization processes are all operated in a fixed bed or a fluidized bed, so the adsorbent particles must reach a certain particle size to ensure that the bed thickness remains unchanged during the operation, that is, the adsorbent will not be absorbed by the fuel oil passing through the bed. take away
In this case, the adsorbent particles are larger, which reduces the specific surface area and limits the adsorption function [Zhao Xueling, Zhang Yuzhong, Li Hong, Journal of Tianjin University of Technology, 2008, 27(2): 11~15]

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Metal-organic framework hybrid membrane for desulfuration, and manufacturing method thereof
  • Metal-organic framework hybrid membrane for desulfuration, and manufacturing method thereof
  • Metal-organic framework hybrid membrane for desulfuration, and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Separation membrane preparation process: first add MOF-5 metal-organic framework material into N-methylpyrrolidone solvent and stir. After the dispersion is complete, add PEG-400. After the solid is completely dissolved, add polyimide polymer in three times. Stir at 50°C for 8 hours, wherein the polymer content is 17% (Wt%), the MOF-5 content is 20% (Wt%), and the PEG-400 content is 15% (Wt%); after the dispersion is complete, let stand After defoaming for 24 hours, the casting solution was prepared; the casting solution was scraped on a glass plate to form a flat film, and then solidified in a water coagulation bath to form; then soak the obtained flat film with ethanol for 24 hours, and drain it at 250 Bake at ℃ for 3 hours to obtain the metal-organic framework hybrid film of the present invention. The resulting membrane has a well-developed pore structure, and the metal-organic framework particles are embedded in the three-dimensional network pore structure (see fig...

Embodiment 2

[0049] Separation membrane preparation process: first add MOF-199 metal-organic framework material into N-methylpyrrolidone solvent and stir. After the dispersion is complete, add PEG-400. After the solid is completely dissolved, add polyimide polymer three times. Stir at 50°C for 8 hours, wherein the polymer content is 17% (Wt%), the MOF-199 content is 20% (Wt%), and the PEG-400 content is 15% (Wt%); after the dispersion is complete, let stand After defoaming for 24 hours, prepare a casting solution; scrape the casting solution on a glass plate to form a flat film, solidify and form it in an isopropanol coagulation bath; soak the obtained flat film with ethanol for 24 hours, drain it Bake at 250° C. for 3 hours to obtain the metal-organic framework hybrid membrane of the present invention (for the microstructure of the membrane, see figure 2 ).

[0050] Wherein the preparation method of MOF-199 metal-organic framework material is: in the there-necked flask, be dissolved in ...

Embodiment 3

[0054] Separation membrane preparation process: first Cu 3 (BTC) 2 Add the metal-organic framework material into the N-methylpyrrolidone solvent and stir. After the dispersion is complete, add PEG-400 and PVP. After the solid is completely dissolved, add the polyimide polymer in three times, and stir at 50°C for 8 hours. Polymer content is 17% (Wt%), Cu 3 (BTC) 2 The content is 20% (Wt%), and the PEG-400 content is 15% (Wt%); after the dispersion is complete, let stand for degassing for 24 hours, and prepare the casting solution; scrape the casting solution on a glass plate to form After the flat film, solidify and form it in an ethanol coagulation bath; soak the obtained flat film with ethanol for 24 hours, drain and bake at 250° C. for 3 hours to obtain the metal-organic framework hybrid film of the present invention (for the microstructure of the film, see image 3 ).

[0055] where Cu 3 (BTC) 2 The preparation method of the metal-organic framework material is as foll...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a metal-organic framework hybrid membrane for desulfuration, and a manufacturing method of the metal-organic framework hybrid membrane. The metal-organic framework hybrid membrane belongs to a preparation technology and an application direction of an organic / inorganic hybrid membrane. Specifically, high-molecular polymer is used as a matrix material; a metal-organic framework material is used as a functional body, and the hybrid membrane which is provided with a three-dimensional net structure and has the advantages of temperature resistance and solvent resistance is prepared by a control phase conversion membrane preparation process; the membrane is prepared by comprising the following materials in percentage by mass: 12-25% of the polymer, 2-30% of the metal-organic framework material, 30-70% of solvent and 5-30% of additive; sum of components is 100%; a membrane preparation method is according to a formula disclosed by the invention and the following processes: 1, preparing casting membrane liquid; 2, manufacturing a membrane; 3, performing post-treatment. The prepared membrane with an adsorption function can be used for desulfuration of fuel oil, particularly, removal of sulfides in gasoline and diesel, and has more than 16.8mg S / g of adsorption capacity for the fuel oil with sulfur content of 730mu g / g.

Description

technical field [0001] The invention belongs to the preparation technology and application direction of organic / inorganic hybrid membrane materials, and relates to a method for manufacturing a metal-organic framework hybrid membrane for fuel oil desulfurization. Specifically, a hybrid membrane with a three-dimensional network structure, temperature resistance, and solvent resistance is prepared by using a polymer as a matrix material and a metal-organic framework material as a functional body, and selecting an appropriate membrane preparation process. The prepared adsorption function membrane can be used for desulfurization of fuel oil, especially the removal of sulfide in gasoline and diesel oil. Background technique [0002] The sulfide contained in fuel oil is an important pollution source of urban air. With the continuous improvement of people's requirements for environmental protection, countries around the world have made strict regulations on the sulfur content in fue...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C10G25/00
Inventor 林立刚王安栋张龙辉董美美张玉忠
Owner TIANJIN POLYTECHNIC UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap