Kinetics of oxidation of total sulfite in the ammonia-based wet flue gas desulfurization process

Through a stirred bubbling apparatus, the kinetics of S(iv) oxidation in basic aluminum sulfate (BAS) rich solution were investigated by varying the components of the BAS solution, concentration of S(iv), temperature, air flow and oxygen partial pressure.

Download Full-text

Kinetics of NOxAbsorption into (NH4)2SO3Solution in an Ammonia-Based Wet Flue Gas Desulfurization Process

Energy & Fuels ◽

10.1021/ef101137k ◽

2010 ◽

Vol 24 (11) ◽

pp. 5876-5882 ◽

Cited By ~ 30

Author(s):

Xiang Gao ◽

Zhen Du ◽

Hong-lei Ding ◽

Zu-liang Wu ◽

Hao Lu ◽

...

Keyword(s):

Flue Gas ◽

Flue Gas Desulfurization ◽

Desulfurization Process ◽

Kinetics Of

Download Full-text

Investigation of the emission control of sulfur trioxide aerosols based on heterogeneous condensation and the deflectors tray of the desulfurization tower

RSC Advances ◽

10.1039/d0ra05699e ◽

2020 ◽

Vol 10 (63) ◽

pp. 38515-38523

Author(s):

Rui Zhang ◽

Xiaodong Si ◽

Lingling Zhao ◽

Linjun Yang ◽

Hao Wu

Keyword(s):

Flue Gas ◽

Sulfur Trioxide ◽

Emission Control ◽

Flue Gas Desulfurization ◽

Heterogeneous Condensation ◽

Desulfurization Process

In this paper, control over the emission of sulfur trioxide aerosols was investigated based on heterogeneous condensation in the wet flue gas desulfurization process.

Download Full-text

Kinetic model for calcium sulfate α-hemihydrate produced hydrothermally from gypsum formed by flue gas desulfurization

Journal of Applied Crystallography ◽

10.1107/s1600576715007141 ◽

2015 ◽

Vol 48 (3) ◽

pp. 827-835 ◽

Cited By ~ 10

Author(s):

Mingliang Tang ◽

Xuerun Li ◽

Yusheng Shen ◽

Xiaodong Shen

Keyword(s):

Flue Gas ◽

Calcium Sulfate ◽

High Performance ◽

Transformation Process ◽

Flue Gas Desulfurization ◽

Synthesis Process ◽

Stable Phase ◽

Hydrothermal Conditions ◽

Simple Method ◽

Kinetics Of

Modeling of the kinetics of the synthesis process for calcium sulfate α-hemihydrate from gypsum formed by flue gas desulfurization (FGD) is important to produce high-performance products with minimal costs and production cycles under hydrothermal conditions. In this study, a model was established by horizontally translating the obtained crystal size distribution (CSD) to the CSD of the stable phase during the transformation process. A simple method was used to obtain the nucleation and growth rates. A nonlinear optimization algorithm method was employed to determine the kinetic parameters. The model can be successfully used to analyze the transformation kinetics of FGD gypsum to α-hemihydrate in an isothermal batch crystallizer. The results showed that the transformation temperature and stirring speed exhibit a significant influence on the crystal growth and nucleation rates of α-hemihydrate, thus altering the transformation time and CSD of the final products. The characteristics obtained by the proposed model can potentially be used in the production of α-hemihydrate.

Download Full-text