拜尔法赤泥用于烟气脱硫:影响因素与机理（英文）

论文摘要

本文研究了由拜尔法赤泥与水制备吸收剂并应用于烟气脱硫。研究了固液比、吸收温度、入口SO2浓度、O2含量、SO42-和拜尔赤泥中其他组分对烟气脱硫的影响,建立了烟气脱硫的机制。结果表明这些因素中固液比是最主要的因素,随后是入口SO2浓度,温度的影响最小。当气体流量为1.5 L/min时,最佳的反应条件为:液固比20:1,吸收温度25°C,入口SO2浓度1000 mg/m3。当O2含量高于7%后,O2含量对脱硫效率的影响较小。SO42-的累积抑制了脱硫效率。碱液吸收、液相催化氧化共占据脱硫进程中总贡献的98.61%。

论文目录

• 1 Introduction
• 2 Materials and methods
•   2.1 Materials
•   2.2 Experiment setup and procedures
•   2.3 Characterization of experimental samples
• 3 Results and discussions
•   3.1 Thermodynamic study
•   3.2 Optimization of orthogonal experiment
•   3.3 Effectsofprocessparameterson desulfurization
•     3.3.1 Effect of L/S
•     3.3.2 Effect of absorption temperature
•     3.3.3 Effect of O2 concentration
•     3.3.4 Effect of SO42–and different components of Bayer red mud slurry
•   3.4 Characterizations and reaction mechanisms
•     3.4.1 XRF analysis
•     3.4.2 XRD analysis
•     3.4.3 XPS analysis
•     3.4.4 SEM analysis
•     3.4.5 BET analysis
•   3.5 Reactionmechanismoffluegas desulfurization
• 4 Conclusions

文章来源

类型: 期刊论文

作者: 陶雷,吴恒,王婕,李彬,王学谦,宁平

关键词: 拜尔法赤泥,烟气脱硫,湿式催化氧化,铁氧化

来源: Journal of Central South University 2019年02期

年度: 2019

分类: 工程科技Ⅱ辑,工程科技Ⅰ辑

专业: 环境科学与资源利用

单位: Faculty of Environmental Science and Engineering, Kunming University of Science and Technology,National and Local Joint Engineering Research Center for Waste Gas Resource Utilization in Metallurgy and Chemical Industry, Kunming University of Science and Technology

基金: Project(2017YFC0210500)supported by the National Key Technology R&D Program of China,Project(2017ACA092)supported by the Major Projects of Technical Innovation in Hubei Province,China

分类号: X701.3

页码: 467-478

总页数: 12

文件大小: 2220K

下载量: 74