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

Device and method for efficiently realizing acidic gas absorption by ionic liquid

A technology for ionic liquids and acid gases, applied in separation methods, gas treatment, chemical instruments and methods, etc., can solve the problems of slow industrial application of ionic liquids, poor mass transfer performance of batch reactors, and reduced gas absorption speed, etc. Achieve the effect of reducing consumption and energy consumption, short mass transfer distance and reducing consumption

Pending Publication Date: 2021-05-28
ZHEJIANG UNIV OF TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high viscosity of the ionic liquid, the mass transfer performance of the batch reactor is poor, which reduces the speed of gas absorption and the absorption time is long, which leads to a large amount of ionic liquid required and increases the cost of absorption, making the industrial application of ionic liquid slow

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
  • Device and method for efficiently realizing acidic gas absorption by ionic liquid
  • Device and method for efficiently realizing acidic gas absorption by ionic liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Pour the ionic liquid into a blue-capped bottle, heat the ionic liquid to 60°C with a magnetic heating stirrer, and vacuumize it for 1 hour through a circulating water vacuum pump for degassing. Immerse the micro-membrane contactor unit in a water bath (control the temperature at 40°C), inject the degassed ionic liquid ([Pmmim][Tf2N]) into the liquid pipeline of the membrane contactor unit through a syringe pump, and the gas supply unit passes The mass flow meter will CO 2 Enter the gas line of the membrane contactor unit. The membrane material used in the membrane contactor unit is Teflon AF-2400 with an inner diameter of 0.6mm and an outer diameter of 0.8mm. The gas pressure is controlled at 0.4MPa, and the liquid pressure is controlled at 0.5MPa. When the system is stable, turn on the recording function of the gas mass flowmeter and record the gas flow online in real time.

[0033] Observe the reading of the gas mass flowmeter. When the reading does not change, sh...

Embodiment 2

[0036] Pour the ionic liquid into a blue-capped bottle, heat the ionic liquid to 30°C with a magnetic heating stirrer, and vacuumize it for 0.8h through a circulating water vacuum pump for degassing. Immerse the micro-membrane contactor unit in a water bath (control the temperature at 30°C), inject the degassed ionic liquid ([Bmmim][Tf2N]) into the liquid pipeline of the membrane contactor unit through a syringe pump, and the gas supply unit passes The mass flow meter will CO 2 Enter the gas line of the membrane contactor unit. The membrane material used in the membrane contactor unit is Teflon AF-2400 with an inner diameter of 0.6mm and an outer diameter of 0.8mm. The gas pressure is controlled at 0.4MPa, and the liquid pressure is controlled at 0.5MPa. When the system is stable, turn on the recording function of the gas mass flowmeter and record the gas flow online in real time.

[0037] Observe the mass flow meter reading, when the reading no longer changes, shut down th...

Embodiment 3

[0040] Pour the ionic liquid into a blue-capped bottle, heat the ionic liquid to 50°C with a magnetic heating stirrer, and vacuumize it for 0.5h through a circulating water vacuum pump for degassing. Immerse the micro-membrane contactor unit in a water bath (control the temperature at 60°C), inject the degassed ionic liquid ([Emmim][Tf2N]) into the liquid pipeline of the membrane contactor unit through a syringe pump, and the gas supply unit passes The mass flow meter will CO 2Enter the gas line of the membrane contactor unit. The membrane material used in the membrane contactor unit is Teflon AF-2400 with an inner diameter of 0.6mm and an outer diameter of 0.8mm. The gas pressure is controlled at 0.4MPa, and the liquid pressure is controlled at 0.5MPa. When the system is stable, turn on the recording function of the gas mass flowmeter and record the gas flow online in real time.

[0041] Observe the mass flow meter reading, when the reading no longer changes, shut down 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

PropertyMeasurementUnit
Diameteraaaaaaaaaa
The inside diameter ofaaaaaaaaaa
Outer diameteraaaaaaaaaa
Login to View More

Abstract

A device for efficiently realizing acidic gas absorption by ionic liquid comprises a liquid conveying pump, a gas mass flow meter, a back pressure valve, a micro membrane contactor and a constant-temperature water bath; the gas mass flow meter is arranged on a gas inlet pipe of the constant-temperature water bath, and the liquid conveying pump is arranged on a liquid inlet pipe of the constant-temperature water bath; and the micro membrane contactor is arranged in an inner cavity of the constant-temperature water bath, and the constant-temperature water bath is provided with a gas outlet pipe and the back pressure valve. The invention also provides a method for efficiently realizing acid gas absorption by the ionic liquid. By utilizing the advantages of high air permeability, large contact area and short mass transfer distance of the micro membrane contactor, the gas-liquid mass transfer speed is increased, the absorption efficiency is enhanced, the absorption time is shortened, and the ionic liquid can quickly and efficiently absorb acid gas.

Description

technical field [0001] The invention belongs to the technical field of chemical separation and purification, and in particular relates to a device and method for efficiently realizing the absorption of acid gas by ionic liquid. Background technique [0002] In recent years, the massive combustion of fossil energy such as coal, oil, and natural gas has made acidic gas (CO 2 , SO 2 ) content has risen sharply, bringing a series of chain reactions such as the greenhouse effect and acid rain, and causing indelible harm to the environment and social economy. At the same time, these acid gases are also one of the main causes of chemical equipment corrosion, which increases the difficulty and cost of plant operation. Therefore, how to quickly and effectively recover these gases is particularly important. [0003] As a new type of solvent, ionic liquids are molten salts that are liquid at room temperature and consist of organic cations and inorganic or organic anions. Compared w...

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
IPC IPC(8): B01D53/18B01D53/14B01F13/00
CPCB01D53/18B01D53/1456B01D53/185B01D2252/30B01D2258/02B01F33/301
Inventor 黄小婷李蓝王祁宁艾宁
Owner ZHEJIANG UNIV OF TECH
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