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

Carbon dioxide adsorbent and preparation method thereof

A carbon dioxide and carbon dioxide adsorption technology, which is applied in chemical instruments and methods, separation methods, and other chemical processes, can solve the problems of cumbersome modification steps, poor cycle stability, and low adsorption capacity, and achieve improved cycle stability and good Effect of stability and high adsorption capacity

Pending Publication Date: 2022-07-29
YANGTZE DELTA REGION INST OF UNIV OF ELECTRONICS SCI & TECH OF CHINE HUZHOU
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the current calcium-based carbon dioxide adsorbent obtained from calcium carbide slag has the disadvantages of low adsorption capacity and poor cycle stability. By modifying the calcium oxide-based adsorbent, its performance can be improved to a certain extent, but the current The modification method has cumbersome steps, complicated procedures, and large additional investment

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Mix 1g of secondary aluminum ash and 1g of carbide slag evenly, heat treatment at 1100 °C for 2 hours in the air, and then cool to obtain a calcium oxide / calcium aluminate composite, which has an adsorption capacity of 0.1MPa flue gas at 700 °C. The gram adsorbent adsorbs 0.4 grams of carbon dioxide.

Embodiment 2

[0017] Mix 1g of secondary aluminum ash and 2g of carbide slag uniformly, heat treatment at 1300 °C for 3 hours in air, and then cool to obtain a calcium oxide / calcium aluminate composite, which has an adsorption capacity of 0.1 MPa flue gas at 200 °C. The gram adsorbent adsorbs 0.3 grams of carbon dioxide.

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

According to the carbon dioxide adsorbent and the preparation method thereof disclosed by the invention, a calcium oxide / calcium aluminate compound is prepared by carrying out heat treatment on secondary aluminum ash and carbide slag, the calcium oxide / calcium aluminate compound is used as the carbon dioxide adsorbent and has relatively high adsorption capacity and stability, and the adsorbent can be regenerated or used for other purposes. According to the method, detoxification and resource conversion of dangerous / solid waste can be achieved, the obtained calcium-based compound can be applied to carbon dioxide capture and solidification, and great environmental protection benefits and application prospects are shown.

Description

Technical field: [0001] The invention relates to the technical field of carbon capture and solid waste resource utilization, in particular to a carbon dioxide adsorbent and a preparation method thereof. Background technique: [0002] With the development of society, the carbon dioxide content in the environment has gradually increased, resulting in a serious threat to the climate. With the proposal of the strategic goal of "carbon peaking and carbon neutrality" in my country, how to save energy and reduce emissions and realize the efficient capture, utilization and storage of carbon dioxide is very important. Currently, calcium-based adsorbents for carbon dioxide capture show obvious advantages, such as their wide sources, low cost, non-toxicity to the environment, and the ability to cyclically capture carbon dioxide through carbonation / calcination adsorption-desorption processes. However, calcium-based adsorbents also show certain deficiencies. During the cyclic adsorption...

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): B01J20/08B01D53/02B01J20/30
CPCB01J20/041B01J20/08B01D53/02B01D2257/504
Inventor 李怡招谢洪涛陈思邓邦为董帆
Owner YANGTZE DELTA REGION INST OF UNIV OF ELECTRONICS SCI & TECH OF CHINE HUZHOU
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