Experimental and modelling approach to the design of chemical absorption columns with fast gas-liquid reaction: A case-study on flue-gas desulfurization with H2O2 oxidative solutions

烟气脱硫 烟气 化学 吸收(声学) 废物管理 氧化磷酸化 化学工程 工艺工程 材料科学 工程类 有机化学 生物化学 复合材料
作者
D. Flagiello,Francesco Di Natale,Amedeo Lancia,I. Sebastiani,F. Nava,A. Milicia,Alessandro Erto
出处
期刊:Chemical Engineering Research & Design [Elsevier BV]
卷期号:194: 425-438 被引量:11
标识
DOI:10.1016/j.cherd.2023.04.040
摘要

In this work, we propose a methodology to approach the design of chemical absorption columns with fast gas-liquid reactions by an experimental and modelling study, which accounts for thermodynamic (solubility) data, mass-transfer phenomena, and the reaction kinetics contribution. As a reference case, the SO 2 absorption in aqueous solution of H 2 O 2 at different concentrations, which oxidizes SO 2 to sulfuric acid, is considered. A lab-scale fed-batch bubble column is used to evaluate SO 2 solubility dataset in absorbing solutions of distilled water containing different dosages of H 2 O 2 . A thermodynamic model is developed and validated in a Thermodynamic Flash block of ASPEN PLUS®, allowing to describe the experimental results with optimum agreement. For kinetic experiments, a lab-scale falling-film absorber is used to investigate both SO 2 mass-transfer rates and the fundamental kinetic aspects of an absorption process with chemical reaction. The physical contribution to the mass-transfer rate is evaluated through a set of dedicated experiments, which allowed determining gas-side ( k G a ) and liquid-side ( k L a ) coefficients in the falling-film absorber. Subsequently, the Enhancement factor ( E L ) of the SO 2 oxidative absorption is evaluated for the oxidizing reaction (SO 2 + H 2 O 2 → H 2 SO 4 ) under the explored experimental conditions, using the equilibrium dataset and the mass transfer coefficients previously obtained. Finally, E L is correlated to the Hatta number ( Ha ) with the Danckwerts kinetic model as a pseudo-m th -n th -order non-reversible reaction type and the model kinetic parameters are calculated. • This work provides an experimental and modelling approach to the design of reactive absorption columns. • The thermodynamic model developed in ASPEN PLUS provides a proper estimation of the SO 2 -H 2 O 2 solubility dataset. • The kinetic experiments allowed assessment of the reaction kinetic parameters in the gas absorption of SO 2 into H 2 O 2 . • The kinetic model based on the Danckwerts equation provides a proper estimation of the Enhancement factors.
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
PDF的下载单位、IP信息已删除 (2025-6-4)

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
魏少爷发布了新的文献求助10
1秒前
充电宝应助Bismarck采纳,获得10
2秒前
情怀应助醒醒采纳,获得50
2秒前
3秒前
4秒前
5秒前
5秒前
雨纷纷发布了新的文献求助10
5秒前
允期发布了新的文献求助10
6秒前
夏天无完成签到 ,获得积分10
6秒前
山鬼发布了新的文献求助10
6秒前
愉悦完成签到,获得积分10
7秒前
7秒前
7秒前
8秒前
清新的Q完成签到,获得积分10
9秒前
M1982发布了新的文献求助10
9秒前
淡然的新烟完成签到 ,获得积分10
9秒前
李林路发布了新的文献求助10
10秒前
虫二先生完成签到 ,获得积分10
11秒前
wanci应助曾建采纳,获得10
12秒前
量子星尘发布了新的文献求助10
12秒前
不要辣椒发布了新的文献求助10
12秒前
香菜发布了新的文献求助10
13秒前
13秒前
大卫戴发布了新的文献求助10
13秒前
科研通AI5应助清新的Q采纳,获得10
14秒前
Jason发布了新的文献求助10
14秒前
Lawrence发布了新的文献求助10
14秒前
15秒前
16秒前
笨笨芯发布了新的文献求助30
16秒前
zzn完成签到,获得积分10
16秒前
aldehyde应助大聪采纳,获得10
16秒前
16秒前
17秒前
俊秀的芫发布了新的文献求助10
17秒前
轻松的惜芹应助kdjm688采纳,获得10
17秒前
19秒前
香蕉觅云应助M1982采纳,获得10
20秒前
高分求助中
Picture Books with Same-sex Parented Families: Unintentional Censorship 1000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 310
The Moiseyev Dance Company Tours America: "Wholesome" Comfort during a Cold War 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 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 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3980224
求助须知:如何正确求助?哪些是违规求助? 3524191
关于积分的说明 11220260
捐赠科研通 3261653
什么是DOI,文献DOI怎么找? 1800792
邀请新用户注册赠送积分活动 879296
科研通“疑难数据库(出版商)”最低求助积分说明 807232