Effect of Amine Activators on Aqueous N,N-Diethylethanolamine Solution for Postcombustion CO2 Capture

被引：38

作者：

Gao, Hongxia ^{[1
]}

Xu, Bin ^{[1
]}

Liu, Helei ^{[1
]}

Liang, Zhiwu ^{[1
]}

机构：

[1] Hunan Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Cost Effect Utilizat Fossil Fu, Joint Int Ctr Capture & Storage iCCS CO2, Changsha 410082, Hunan, Peoples R China

来源：

ENERGY & FUELS | 2016年 / 30卷 / 09期

基金：

中国国家自然科学基金;

关键词：

CARBON-DIOXIDE; MASS-TRANSFER; 2-AMINO-2-METHYL-1-PROPANOL AMP; N-METHYLDIETHANOLAMINE; OXIDATIVE-DEGRADATION; MONOETHANOLAMINE MEA; FLUE-GAS; ABSORPTION; HEAT; SELECTION;

D O I：

10.1021/acs.energyfuels.6b00671

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Blended absorbents composed of N,N-diethylethanolamine (DEER) and amine activator were comprehensively studied using an improved rapid screening method. A total of nine amine activators, including MEA, DEA, EEA, AMP, AEEA, MAPA, DETA, TETA, and PZ, were assessed based on absorption rate, stripping rate, and cyclic CO2 capacity. The rapid screening experiments for the absorption and stripping were conducted at 40 and 80 degrees C, respectively. Results revealed how the absorption/stripping performance is affected by the number and structure of -NH- groups in the activators. In addition, all of the 3 M DEEA-based solutions showed improved absorption rate and regeneration rate as well as cyclic CO2 capacity with the use of 3 M DEEA and S M MEA individually. Furthermore, experimental results showed that the highest average absorption rate, average desorption rate, and cyclic CO2 capacity of 1.6272 mol CO2/L were achieved by an aqueous DEEA-PZ solution.

引用

页码：7481 / 7488

页数：8

共 53 条

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