Key Factor in Rice Husk Ash/CaO Sorbent for High Flue Gas Desulfurization Activity

2006 ◽  
Vol 40 (19) ◽  
pp. 6032-6037 ◽  
Author(s):  
Irvan Dahlan ◽  
Keat Teong Lee ◽  
Azlina Harun Kamaruddin ◽  
Abdul Rahman Mohamed
Keyword(s):  
Rice Husk ◽  
Flue Gas ◽  
Rice Husk Ash ◽  
Flue Gas Desulfurization ◽  
Key Factor ◽  
Desulfurization Activity

Optimum conditions for preparation of flue gas desulfurization absorbent from rice husk ash

Fuel ◽  
2005 ◽  
Vol 84 (2-3) ◽  
pp. 143-151 ◽  
Author(s):  
Keat Teong Lee ◽  
Atikah Matlina Mohtar ◽  
Nor Fatiha Zainudin ◽  
Subhash Bhatia ◽  
Abdul Rahman Mohamed
Keyword(s):  
Rice Husk ◽  
Flue Gas ◽  
Rice Husk Ash ◽  
Flue Gas Desulfurization ◽  
Optimum Conditions

Sorption of SO2 and NO from simulated flue gas over rice husk ash (RHA)/CaO/CeO2 sorbent: Evaluation of deactivation kinetic parameters

2011 ◽  
Vol 185 (2-3) ◽  
pp. 1609-1613 ◽  
Author(s):  
Irvan Dahlan ◽  
Keat Teong Lee ◽  
Azlina Harun Kamaruddin ◽  
Abdul Rahman Mohamed
Keyword(s):  
Kinetic Parameters ◽  
Rice Husk ◽  
Flue Gas ◽  
Rice Husk Ash

Flue Gas Desulfurization over Copper Oxide Loaded on Complex Carrier of Attapulgite and Activated Carbon

2012 ◽  
Vol 549 ◽  
pp. 387-390 ◽  
Author(s):  
Yong Yang ◽  
Hu Peng Yu ◽  
Jin Long Jiang ◽  
Yun Hua Qian
Keyword(s):  
Activated Carbon ◽  
Copper Oxide ◽  
Reaction Temperature ◽  
Flue Gas ◽  
Fixed Bed ◽  
Experimental Results ◽  
Flue Gas Desulfurization ◽  
Impregnation Method ◽  
Desulfurization Activity

Sorbent of CuO loaded on complex carrier of attapulgite and activated carbon was prepared by incipient impregnation method for flue gas desulfurization. The effects of CuO loading, reaction temperature and components in flue gas on the desulfurization performance were investigated in a fixed-bed quartz reactor. The experimental results indicate that the sorbents of 20 wt% CuO loading has a high desulfurization activity under conditions of reaction temperatures 200-250 oC and 21000 h-1, and O2 is necessary for the high desulfurization activity of the sorbents.

scholarly journals Research on Control Method of Wet Desulfurization System for Coal-fired Boiler

2021 ◽  
Vol 2076 (1) ◽  
pp. 012063
Author(s):  
Xingchao Zhang ◽  
Jianhong Liu ◽  
Peng Hu
Keyword(s):  
Flue Gas ◽  
Control Method ◽  
Ph Value ◽  
Dynamic Performance ◽  
Control Process ◽  
Internal Model Control ◽  
Flue Gas Desulfurization ◽  
System Control ◽  
Model Control ◽  
Key Factor

Abstract In wet flue gas desulfurization technology, the key factor affecting flue gas SO2 absorption is the control of slurry pH value in the absorption tower. However, most of the commonly used pH value control methods have some defects and cannot fully meet the system control requirements. On the basis of the analysis for the problems in the control process, this paper discussed a control strategy based on internal model control algorithm. The system simulation test showed that this control method had good dynamic performance, robustness and anti-interference, which could realize the relatively accurate control of pH value for wet flue gas desulfurization system, and achieve the control goal.

Mechanoactivation Of Rice Husk Ash In Laboratory Conditions

2019 ◽  
pp. 20-26
Keyword(s):  
Mechanical Activation ◽  
Rice Husk ◽  
Amorphous Silica ◽  
Silicon Oxide ◽  
Rice Husk Ash ◽  
Pozzolanic Activity ◽  
Maximum Solubility ◽  
Laboratory Conditions ◽  
Before And After ◽  
Mineral Additive

In many rice producing countries of the world, including in Vietnam, various research aimed at using rice husk ash (RHA) as a finely dispersed active mineral additive in cements, concrete and mortars are being conducted. The effect of the duration of the mechanoactivation of the RHA, produced under laboratory conditions in Vietnam, on its pozzolanic activity were investigated in this study. The composition of ash was investigated by laser granulometry and the values of indicators characterizing the dispersion of its particles before and after mechanical activation were established. The content of soluble amorphous silicon oxide in rice husk ash samples was determined by photocolorimetric analysis. The pizzolanic activity of the RHA, fly ash and the silica fume was also compared according to the method of absorption of the solution of the active mineral additive. It is established that the duration of the mechanical activation of rice husk ash by grinding in a vibratory mill is optimal for increasing its pozzolanic activity, since it simultaneously results in the production of the most dispersed ash particles with the highest specific surface area and maximum solubility of the amorphous silica contained in it. Longer grinding does not lead to further reduction in the size of ash particles, which can be explained by their aggregation, and also reduces the solubility of amorphous silica in an aqueous alkaline medium.

Desalination Technology of Water by using Rice Husk Ash

2014 ◽  
Vol 27 (2) ◽  
pp. 148-160
Author(s):  
Hassan K. Hassan ◽  
Najla J. Al-Amiri ◽  
Mohammed M. Yassen
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Desalination Technology
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