Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of medium temperature carbon dioxide adsorbent and its preparation method and application

A carbon dioxide and adsorbent technology, applied in the field of medium-temperature carbon dioxide adsorbent, can solve the problems of low utilization rate and high cost, and achieve the effects of cheap raw materials, enhanced stability, and improved agglomeration phenomenon

Active Publication Date: 2017-05-17
TIANJIN POLYTECHNIC UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The effective component of the adsorbent is sodaite (Na 2 Mg(CO 3 ) 2 ), the Na / Mg ratio of this material is 2, so higher Na / Mg ratio is lower to the utilization rate of raw material, and cost is higher, and preparation technology needs further improvement

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
  • A kind of medium temperature carbon dioxide adsorbent and its preparation method and application
  • A kind of medium temperature carbon dioxide adsorbent and its preparation method and application
  • A kind of medium temperature carbon dioxide adsorbent and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 12.0g of Mg(NO 3 ) 2 ·6H 2 O and 0.2 g of nano-anatase TiO 2 The powder was added to deionized water to form a mixed solution. Slowly add 10.6g of sodium carbonate to the mixed solution at room temperature, stir for 2 hours, stop stirring and let stand for 20 hours, filter with suction, and dry at 120°C for 24 hours to obtain adsorbent A.

Embodiment 2

[0027] 12g of Mg(NO 3 ) 2 ·6H 2 O and 0.1g of CuO powder were added to deionized water to form a mixed solution, and 15.9g of sodium carbonate was slowly added to the mixed solution at room temperature, stirred for 2 hours, stopped for 20 hours after stirring, suction filtered, and dried at 120°C for 24 hours. Adsorbent B was obtained.

Embodiment 3

[0029] 8.0g of Mg(NO 3 ) 2 ·6H 2 O with 0.1g of Al 2 o 3 The powder was added to deionized water to form a mixed solution. Slowly add 12.72 g of sodium carbonate to the mixed solution at room temperature, stir for 3 hours, stop stirring and let stand for 24 hours, filter with suction, and dry at 120°C for 24 hours to obtain Adsorbent C.

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
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention provides a medium-temperature carbon dioxide absorbent, and a preparation method and an application thereof. The main component of the absorbent is eitelite (Na2Mg(CO3)2), and auxiliary agents are selected from nano-grade TiO2, SiO2, Al2O3 and CuO. According to the preparation method of the carbon dioxide absorbent, soluble magnesium salt and auxiliary agent powder are mixed to form a slurry; sodium carbonate is added into the mixed slurry; and stirring, standing, suction filtration and drying are carried out, such that the absorbent is obtained. The absorbent has the advantages of cheap and easy-to-obtain raw materials, high absorption and desorption rates, good stability, large absorption capacity, and the like. The absorbent has good regeneration stability, and is prevented from an active magnesium salt sintering agglomeration phenomenon under a relatively wide temperature range.

Description

technical field [0001] The present invention designs a medium-temperature carbon dioxide adsorbent for CO in industrial flue gas 2 Adsorption belongs to the technical field of gas phase purification. Background technique [0002] In recent years, with the rapid development of industry, the global greenhouse gas CO 2 The dramatic increase in emissions has drawn widespread attention to the resulting global warming. The Intergovernmental Panel on Climate Change predicts that by 2100, atmospheric CO 2 Concentrations of up to 570ppm will lead to a global temperature increase of 1.9K and sea level rise of 38cm, in addition to causing climate phenomena such as melting glaciers and extreme weather events. According to the forecast of the U.S. Department of Energy, the global CO 2 Emissions must be reduced by at least 60% to curb global climate change. It is currently believed that CO 2 capture and storage (CO 2 capture and storage, CCS) is to reduce atmospheric CO 2 Concentr...

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): B01J20/04B01J20/06B01J20/08B01J20/10B01D53/02
CPCY02C20/40
Inventor 刘丹桂建舟杨丽霞李艺孙成志
Owner TIANJIN POLYTECHNIC UNIV