Method for gathering carbon dioxide by using high-stability alkaline ionic liquid

A carbon dioxide, alkaline ion technology, applied in separation methods, chemical instruments and methods, educts, etc., can solve the problems of small absorption capacity, large absorption energy, difficult desorption, etc., to improve absorption capacity, reduce viscosity, speed up effect of speed

Inactive Publication Date: 2011-08-17
ZHEJIANG UNIV
View PDF2 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the traditional industrial method of capturing carbon dioxide is the alcohol amine absorption method, which has the advantages of low cost, fast absorption, and large capacity, but there are also some limitations: such as the solvent is volatile, the equipment is easy to corrode, and the absorbent is easy to oxidize and regenerate. high energy consumption
At present, the main problem of the chemical trapping of functionalized ionic liquids is that the absorption energy is large, generally greater than 80kJ mol -1 , not easy to detach
In addition, someone has measured the solubility o

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
  • Method for gathering carbon dioxide by using high-stability alkaline ionic liquid
  • Method for gathering carbon dioxide by using high-stability alkaline ionic liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In a 5ml glass container with an internal diameter of 1cm, add 1.2g (0.02mol) of ionic liquid tetradecyltrihexylphosphorustriazole, then slowly feed carbon dioxide gas with a flow rate of 60ml / min and a pressure of 0.1MPa, and control the absorption temperature to At 20°C, the absorption time was controlled to be 0.5 hours, and the weighing showed that the absorption capacity of carbon dioxide in the ionic liquid was 0.95 mol / mol ionic liquid. The absorption energy of the ionic liquid is -56kJ mol -1 ;

Embodiment 2-7

[0024] Similar to Example 1, the carbon dioxide gas pressure was controlled to 0.1 MPa, the absorption temperature was 20°C, and the type of ionic liquid was changed. The results of carbon dioxide absorption are shown in the following table (Table 1):

[0025] Table 1 Effect of different ionic liquid types on carbon dioxide capture

[0026]

Embodiment 8-16

[0028] Similar to Example 1, tetradecyltrihexylphosphorus triazole was used as the absorbent to absorb carbon dioxide gas, and the absorption temperature, gas pressure and absorption time were changed. The absorption results are shown in the following table (Table 2):

[0029] Table 2 Effect of different absorption conditions on carbon dioxide absorption

[0030]

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 a method for gathering carbon dioxide, in particular to a method for gathering carbon dioxide by using high-stability alkaline ionic liquid, wherein carbon dioxide gas is absorbed by taking alkalescent quaternary phosphonium type ion liquid as an absorbent; the absorption pressure is 0.0001-0.2MPa; the absorption temperature is 10-70 DEG C; the absorption time is 0.1-2h; the absorbed carbon dioxide can be desorbed easily; the desorption temperature is within 80-150DEG C; and the desorption time is within 0.1-3h. In the invention, the high-stability alkaline ionic liquid is applied to the chemical gathering of carbon dioxide so that a high-capacity, low-energy consumption and recyclable gathering method of carbon dioxide is realized and a potential method is provided for the industrial gathering of carbon dioxide.

Description

technical field [0001] The invention relates to a method for capturing carbon dioxide, in particular, it is a method of applying a high-stability alkaline ionic liquid to the chemical capture of carbon dioxide, thereby realizing a high-capacity, low-energy consumption, and recyclable capture method for carbon dioxide , providing a potential method for the industrial capture of carbon dioxide. Background technique [0002] With the rapid development of economy and society, the climate change brought about by the greenhouse effect has increasingly become a major environmental problem faced by human beings. In recent years, as a major greenhouse gas, the emission of carbon dioxide has increased year by year, which has exacerbated the greenhouse effect and seriously affected human survival and the ecological environment. Its capture, storage and utilization have attracted widespread attention at home and abroad. In addition, carbon dioxide can also be converted into various o...

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): B01D53/78B01D53/62C01B31/20C01B32/50
CPCY02P20/152Y02A50/20Y02P20/151
Inventor 王从敏戴胜李浩然罗小燕
Owner ZHEJIANG 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