Novel C2NxO1-x/PIM-1 mixed matrix membrane and preparation method and application thereof

A technology of PIM-1 and mixed matrix membrane, applied in separation methods, chemical instruments and methods, membrane technology, etc., to achieve good economic benefits and commercialization prospects, high gas permeability, and simple and easy preparation methods

Pending Publication Date: 2021-11-02
ZHENGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the core issue of membrane separation is how to prepare a gas separation membrane with high separation performance, high stability and high production efficiency.

Method used

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  • Novel C2NxO1-x/PIM-1 mixed matrix membrane and preparation method and application thereof
  • Novel C2NxO1-x/PIM-1 mixed matrix membrane and preparation method and application thereof
  • Novel C2NxO1-x/PIM-1 mixed matrix membrane and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] New type C 2 N x o 1-x / PIM-1 mixed matrix membrane preparation, the steps are as follows:

[0041] 1. Configure PIM-1 solution

[0042] Synthesis of PIM-1: Weigh 5.106g of purified 5,5',6,6'-tetrahydroxy-3,3',4,4'-tetramethyl-1,1'-helical bisindane ( TTSBI) in a three-necked flask, add 30ml of anhydrous N,N-dimethylacetamide (DMAc) under a nitrogen atmosphere, stir and dissolve, and add 3.001g of recrystallized tetrafluoroterephthalonitrile after TTSBI is completely dissolved (TFTPN) and continue stirring, stop stirring after all medicines are dissolved, add 6.21g of anhydrous potassium carbonate, then transfer the three-necked flask to 150°C oil bath and keep stirring. The polycondensation reaction continued, and the reactant became viscous at this time, and 2-3ml of anhydrous toluene was added several times, and the whole reaction continued for 30 minutes. After cooling to room temperature, the product was poured into 400 ml of anhydrous methanol, and precipitat...

Embodiment 2

[0063] Step 2 Take 0.1g PEG-200 and add to C 2 N x o 1-x In the dispersion, stir for 4h and sonicate for 1h. Other steps are all with embodiment 1.

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Abstract

The invention belongs to the technical field of gas separation membranes, and particularly relates to a novel C2NxO1-x / PIM-1 mixed matrix membrane, a preparation method thereof and an application of the novel C2NxO1-x / PIM-1 mixed matrix membrane in separation of CO2 / N2 and CO2 / CH4. According to the mixed matrix membrane, PIM-1 serves as a polymer matrix, the membrane is filled with C2NxO1-x, and the mass of C2NxO1-x accounts for 5%-20% of the mass of PIM-1. The novel C2NxO1-x / PIM-1 mixed matrix membrane provided by the invention has relatively high gas permeability, the C2NxO1-x raw material is cheap and easy to obtain, the preparation method of the mixed matrix membrane is simple and easy to implement, and the mixed matrix membrane has relatively good economic benefits and commercial prospects.

Description

technical field [0001] The invention belongs to the technical field of gas separation membranes, in particular to a novel C 2 N x o 1-x / PIM-1 mixed matrix membrane and its preparation, and its 2 / N 2 and CO 2 / CH 4 applications in separation. Background technique [0002] With the development of science, the global demand for fossil fuels is increasing day by day. As the most important greenhouse gas produced by the combustion of fossil fuels, carbon dioxide has always been a source of pollution that has attracted much attention. The capture and separation of carbon dioxide has far-reaching environmental and energy implications and is a major concern today. At present, common carbon dioxide separation and capture technologies include solvent absorption method, cryogenic distillation method, adsorbate adsorption method, membrane separation method and so on. Membrane separation method is widely used in many CO due to its high efficiency, easy operation, low energy con...

Claims

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Application Information

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IPC IPC(8): B01D69/02B01D67/00C01B32/50B01D53/22
CPCB01D69/02B01D67/0079B01D53/228C01B32/50Y02C20/40Y02P20/151
Inventor 王景张亚涛郑伟港田志红
Owner ZHENGZHOU UNIV
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