Carbonation characteristics of sodium-based sorbents with aminomodification for CO<sub>2</sub> capture

YU Fan; WU Ye; DONG Wei; CAI Tianyi; ZHANG Wenjing; ZHANG Cong; CHEN Xiaoping

doi:10.11949/j.issn.0438-1157.20150060

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Carbonation characteristics of sodium-based sorbents with aminomodification for CO₂ capture

更新时间：2025-12-10

- Carbonation characteristics of sodium-based sorbents with aminomodification for CO₂ capture
- CIESC Journal Issue 10, Pages: 4218-4227(2015)
- 作者机构：
  
  1. 东南大学能源与环境学院, 能源热转换及其过程测控教育部重点实验室,江苏,南京,210096
  2. 南京理工大学能源与动力工程学院,江苏,南京,210094
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150060
  CLC： K09
- Online First：05 October 2015，
  
  Published：05 October 2015
- 稿件说明：
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YU Fan, WU Ye, DONG Wei, et al. Carbonation characteristics of sodium-based sorbents with aminomodification for CO₂ capture[J]. CIESC Journal, 2015, (10): 4218-4227. DOI: 10.11949/j.issn.0438-1157.20150060.
DOI：

YU Fan, WU Ye, DONG Wei, et al. Carbonation characteristics of sodium-based sorbents with aminomodification for CO₂ capture[J]. CIESC Journal, 2015, (10): 4218-4227. DOI: 10.11949/j.issn.0438-1157.20150060. DOI：

摘要

为弥补常规钠基吸收剂活性差、脱碳量低的不足

制备了多种表面氨基修饰的新型复合型钠基吸收剂并研究其脱碳特性。通过比较氨基流失率和实际脱碳量

选定二氧化硅的前驱物正硅酸乙酯为载体前驱物

以碳酸钠为活性成分

分别以3-氨基丙基三甲氧基硅烷(APS)、3-氨基丙基三乙氧基硅烷(APTES)、二乙烯三胺(DETA)、三乙烯四胺(TETA)为氨基前驱物

制备得到多种表面氨基修饰的复合型钠基吸收剂。探究各种吸收剂的孔隙结构与脱碳特性

结果表明

APS、APTES修饰后吸收剂孔隙特性较差

脱碳量较低

DETA、TETA修饰后吸收剂孔隙结构得到改善

脱碳量较高。

Abstract

In order to improve the CO2 sorption performance of sodium-based sorbent

a series of sodium-based sorbents with amino modification were prepared by sol-gel method and the corresponding CO2 sorption capacity were investigated in this paper. Tetraethylorthosilicate (TEOS) was chosen as the carrier precursor by comparing the amine loss rate and CO2 sorption capacity of pure -NH2 sorbents

and Na2CO3 was as the active ingredient. 3-aminopropyltrimethoxysilane (APS)

3-aminopropyltriethoxysilane (APTES)

diethylenetriamine (DETA) and triethylenetetramine (TETA) were used

respectively as the amino precursor for synthesizing the composite sorbents and then drying them with conventional technique. Results showed that the sorbent modified with TETA had the highest CO2 sorption capacity and the best pore structure

while that modified with APTES had the lowest amine loss but poor structure.

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Carbonation characteristics of sodium-based sorbents with aminomodification for CO2 capture

DOI：10.11949/j.issn.0438-1157.20150060

摘要

Abstract

关键词

Keywords

references

Carbonation characteristics of sodium-based sorbents with aminomodification for CO₂ capture