Preparation method for solid amine adsorbent

An adsorbent and solid amine technology, which is applied in the field of ultrasonic synergistic preparation of solid amine adsorbents, can solve the problems of few recycling times, small specific surface area, waste of raw materials, etc. The effect of large surface area

Inactive Publication Date: 2019-04-05
CHINA PETROLEUM & CHEM CORP +1
View PDF14 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to aim at the small specific surface area of ​​the current solid amine-loaded adsorption material, the poor adsorption effect, the few times of recycling, the waste of raw materials, and the increase of CO 2 To capture the cost of adsorbent materials and other issues, provide a preparation with CO 2 A solid amine adsorbent method that has high adsorption and regeneration capabilities, excellent carbon capture performance, and can be recycled many times

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 2

[0024] Dissolve 34.65 g tetraethyl orthosilicate in a mixed solution of 20.65 g ethylene glycol and 20.00 g ethanol, stir and heat to 80 °C, add 2 g monoethanolamine (MEA) to the above solution, continue stirring for 30 min, and turn on 20 kHz horn type ultrasonic, ultrasonic sound intensity is 0.5 W / cm 2 , and then add 60.00 g of ethanol and 15.00 g of distilled water. Keep at 80°C for 8 hours to form a transparent jelly. At this time, turn off the ultrasound, and age the jelly at room temperature for 24 hours to obtain the target product in white flakes. The specific surface area of ​​this adsorbent is determined to be 201.31 m 2 / g.

Embodiment 3

[0026] Dissolve 34.65 g tetraethyl orthosilicate in a mixed solution of 20.65 g ethylene glycol and 20.00 g ethanol, stir and heat to 80 °C, add 2 g monoethanolamine (MEA) to the above solution, continue stirring for 30 min, and turn on 20 kHz horn type ultrasonic, ultrasonic sound intensity is 1.2 W / cm 2 , and then add 60.00 g of ethanol and 15.00 g of distilled water. Keep at 80°C for 8 hours to form a transparent jelly. At this time, turn off the ultrasound and age the jelly at room temperature for 24 hours to obtain a white powder product. The specific surface area of ​​this adsorbent is determined to be 285.32 m 2 / g.

Embodiment 4

[0028] Dissolve 34.65 g tetraethyl orthosilicate in a mixed solution of 20.65 g ethylene glycol and 20.00 g ethanol, stir and heat to 80 °C, add 2 g monoethanolamine (MEA) to the above solution, continue stirring for 30 min, and turn on 100 kHz channel ultrasonic, ultrasonic sound intensity is 1.2 W / cm 2 , and then add 60.00 g of ethanol and 15.00 g of distilled water. Keep at 80°C for 8 hours to form a transparent jelly. At this time, turn off the ultrasound and age the jelly at room temperature for 24 hours to obtain a white powder product. The specific surface area of ​​this adsorbent is determined to be 222.13 m 2 / g.

[0029] As can be seen from the above comparative examples and examples, the method of the present invention can prepare excellent CO with large specific surface area, high activity, good carbon capture performance, and many times of recycling. 2 Adsorbents for post-combustion dry capture of CO 2 research and application needs.

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
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to view more

Abstract

The invention relates to a method for preparing a supported solid amine adsorbent in an ultrasonic synergy manner. Tetraethyl orthosilicate is dissolved in a mixed solution of alcohols, stirring and heating, the mass ratio of the tetraethyl orthosilicate to the mixed solution of alcohols is 0.1-1:8, and the heating temperature is 30 DEG C-120 DEG C; and organic amine is added to the solution, thenultrasound is started, then distilled water is added, a gelatinoid is generated by reaction, and after the gelatinoid is aged at room temperature, a target product is obtained. The method can preparean excellent CO2 adsorbent with large specific surface area, high activity, good carbon capture performance and many times of cyclic utilization, and is beneficial to research and application need ofCO2 capture by a dry method after combustion.

Description

technical field [0001] The invention belongs to the fields of gas separation, gas purification, material chemistry and the like, and relates to a method for ultrasonically synergistically preparing solid amine adsorbents. Background technique [0002] Industry needs to carry out CO 2 There are many fields of capture, such as natural gas, flue gas, coal bed methane, biogas, synthesis gas, refinery gas, coke oven gas, kiln gas, etc. Currently, the vast majority of commercial CO 2 Capture technology is developed based on the principles of liquid absorption, solid adsorption, and membrane separation. The traditional alcohol amine solution absorption method has been widely used in CO 2 However, there are technical problems such as high energy consumption in the process, serious equipment corrosion, fast deterioration of amine, strong volatility of the absorption liquid, resulting in environmental pollution and loss of absorbent. Therefore, a new energy-saving and environmenta...

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): B01J20/22B01J20/30B01D53/02
CPCB01D53/02B01D2257/504B01J20/22Y02C20/40
Inventor 毛松柏黄汉根陈曦江洋洋汪东
Owner CHINA PETROLEUM & CHEM CORP
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