Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Membrane gas separation device and method

A gas and membrane technology, which is applied in the field of devices for asymmetric electrostatic field coupled membrane gas separation, can solve the problems of improving the permeation rate of membrane gas separation, and achieves improved permeation rate and separation effect, low equipment cost, and separation effect. strengthening effect

Active Publication Date: 2013-11-27
TIANJIN POLYTECHNIC UNIV
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Retrieving researches at home and abroad, there is no report on improving the permeation rate of membrane gas separation by adding electrostatic force as the driving force for mass transfer

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
  • Membrane gas separation device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, an exemplary asymmetric electrostatic field coupled membrane gas separation device 10 includes a raw material chamber 7 , a permeation chamber 8 , and a flat membrane 9 . In one embodiment, the raw material chamber 7 includes an inlet 1 and an outlet 2 for raw gas, and the chamber is at normal pressure and at a temperature of 25°C. A plate electrode 4 is provided in the raw material chamber 7, which is a cathode; a needle-shaped electrode 5 is provided in a permeation chamber 8, which is an anode. A direct voltage is applied between the plate electrode 4 and the needle electrode 5 to generate an asymmetrical electrostatic field, and the voltage of the asymmetrical electrostatic field is 2000 volts. The inside of the permeation chamber 8 is negative pressure, the pressure is 1.7kPa.

[0027] The raw material gas contains saturated water vapor 6-2 and methane 6-1, and the gas flow rate is 0.6L / min. It enters the raw material chamber 7 from the...

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

No PUM Login to View More

Abstract

The invention relates to an asymmetric electrostatic field coupling membrane gas separation device which comprises a raw material chamber, a permeating chamber, a membrane and an electrode, wherein the electrode can be used for generating an asymmetric electrostatic field; the electrode comprises a flat electrode and a needle electrode; a 101-104V direct current voltage is applied to the electrode; the raw gas containing polar gas molecules enters into the raw material chamber; under the dual action of chemical potential gradient and electric potential gradient of the asymmetric electrostatic field, the raw gas spreads and permeates through the membrane at a speed higher than the speed under the existence of pure chemical potential gradient, thereby forming the penetrating gas and flowing from the permeating chamber; and the remaining gas flows from the raw material chamber, thereby separating the raw gas. The invention also relates to an asymmetric electrostatic field coupling membrane gas separation method.

Description

technical field [0001] The invention relates to the field of membrane gas separation, in particular to an asymmetric electrostatic field coupled membrane gas separation device and method, which increases mass transfer driving force, improves permeation rate and separation effect. Background technique [0002] Gas membrane separation technology has been commercially applied since the 1970s. The main features of this technology are no phase change, low energy consumption, flexible device scale according to the requirements of processing capacity, simple equipment, convenient operation and high operational reliability. In the process of membrane gas separation, the gas dissolves in the membrane when it comes into contact with the membrane, and is driven by the chemical potential gradient to diffuse in the membrane to the other side, and the gas is desorbed from the membrane when it reaches the other side of the membrane. , realizing the mass transfer of gas from one side of th...

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 Patents(China)
IPC IPC(8): B01D53/22
Inventor 杜润红
Owner TIANJIN POLYTECHNIC UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com