Carbon Dioxide Absorption with an Aqueous Biphasic Absorbent in a Rotating Zigzag Bed

吸收(声学) 二氧化碳 传质系数 化学 水溶液 传质 分析化学(期刊) 色谱法 材料科学 有机化学 复合材料
作者
Zhibang Liu,Hanxiao Zhang,Yongbo Song,Yang Xiang,Hao Xin,Huapeng Ma,Jimmy Yun,Lei Shao
出处
期刊:Energy & Fuels [American Chemical Society]
卷期号:36 (7): 3704-3714 被引量:7
标识
DOI:10.1021/acs.energyfuels.1c04256
摘要

This study explored an intensive carbon dioxide (CO2) absorption process with aqueous biphasic absorbents containing diethylethanolamine (DEEA) and diethylenetriamine (DETA) in a rotating zigzag bed (RZB). The effects of the absorbent composition on the phase separation behavior and CO2 absorption performance were investigated. The dependence of the overall gas-phase volumetric mass transfer coefficient (KGa) and CO2 absorption efficiency on operating conditions with the DEEA + DETA solution was examined. Experimental results indicated that over 97% absorbed CO2 was focused on the bottom layer in the rich solution. The 4 mol/L DEEA + 1 mol/L DETA and 3.5 mol/L DEEA + 1.5 mol/L DETA solutions had much less volume of the bottom layer compared to absorbents with other compositions. Moreover, it was found that the lean solution flow rate, rotational speed of RZB, and temperature of lean solution had a positive influence on CO2 absorption. The KGa and CO2 absorption efficiency in the RZB with the 3.5 mol/L DEEA + 1.5 mol/L DETA solution reached 4.82 kmol/kPa m3 h and 98.7%, respectively, demonstrating an obvious advantage in CO2 absorption performance compared to the 5 mol/L monoethanolamine solution. An artificial neural network (ANN) model was established to predict KGa and CO2 absorption efficiency. The predicted data and experimental results were in good agreement with the deviations generally less than 10% for KGa and CO2 absorption efficiency. A comparison with a wetted-wall column revealed that the RZB could achieve higher mass transfer efficiency. In addition, the mechanism of phase separation in the DEEA + DETA solution was analyzed. This study demonstrates that the DEEA + DETA solution could be a viable absorbent for CO2 capture in RZB.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
7788999完成签到,获得积分10
刚刚
郑陈林完成签到,获得积分10
1秒前
2秒前
3秒前
4秒前
5秒前
活力天川完成签到,获得积分10
6秒前
6秒前
坚强的广山应助wyx采纳,获得10
6秒前
天天快乐应助大气沧海采纳,获得10
6秒前
7秒前
8秒前
8秒前
9秒前
egg完成签到,获得积分10
9秒前
10秒前
Ava应助科研通管家采纳,获得10
10秒前
852应助科研通管家采纳,获得10
10秒前
烟花应助科研通管家采纳,获得10
10秒前
顾矜应助科研通管家采纳,获得10
10秒前
10秒前
bd应助科研通管家采纳,获得20
10秒前
11秒前
欧阳白凝发布了新的文献求助10
12秒前
冷酷金针菇完成签到 ,获得积分10
12秒前
眼睛大中蓝完成签到 ,获得积分10
13秒前
13秒前
14秒前
15秒前
le发布了新的文献求助10
15秒前
蓦然回首完成签到,获得积分10
15秒前
华hgger完成签到,获得积分10
16秒前
最重中之重完成签到,获得积分10
16秒前
17秒前
17秒前
17秒前
17秒前
爱撞墙的猫完成签到,获得积分10
18秒前
bb发布了新的文献求助10
18秒前
高分求助中
The three stars each : the Astrolabes and related texts 1070
Manual of Clinical Microbiology, 4 Volume Set (ASM Books) 13th Edition 1000
Boris Pesce - Gli impiegati della Fiat dal 1955 al 1999 un percorso nella memoria 500
[Lambert-Eaton syndrome without calcium channel autoantibodies] 500
少脉山油柑叶的化学成分研究 500
Recherches Ethnographiques sue les Yao dans la Chine du Sud 500
Aspect and Predication: The Semantics of Argument Structure 400
热门求助领域 (近24小时)
化学 材料科学 医学 生物 有机化学 工程类 生物化学 纳米技术 物理 内科学 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 电极 光电子学 量子力学
热门帖子
关注 科研通微信公众号,转发送积分 2402485
求助须知:如何正确求助?哪些是违规求助? 2101772
关于积分的说明 5301162
捐赠科研通 1829381
什么是DOI,文献DOI怎么找? 911724
版权声明 560365
科研通“疑难数据库(出版商)”最低求助积分说明 487396