scholarly journals Effect of NaOH Addition on the Reactivities of Iron Blast Furnace Slag/Hydrated Lime Sorbents for Low-Temperature Flue Gas Desulfurization

2004 ◽  
Vol 43 (1) ◽  
pp. 184-189 ◽  
Author(s):  
Chiung-Fang Liu ◽  
Shih
Keyword(s):  
Blast Furnace ◽  
Low Temperature ◽  
Flue Gas ◽  
Blast Furnace Slag ◽  
Hydrated Lime ◽  
Flue Gas Desulfurization ◽  
Iron Blast Furnace ◽  
Furnace Slag

scholarly journals Effect of Flue Gas Desulfurization Gypsum on the Properties of Calcium Sulfoaluminate Cement Blended with Ground Granulated Blast Furnace Slag

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 382 ◽  
Author(s):  
Danying Gao ◽  
Zhenqing Zhang ◽  
Yang Meng ◽  
Jiyu Tang ◽  
Lin Yang
Keyword(s):  
Blast Furnace ◽  
Mechanical Strength ◽  
Flue Gas ◽  
Blast Furnace Slag ◽  
Setting Time ◽  
Flue Gas Desulfurization ◽  
Calcium Sulfoaluminate Cement ◽  
Calcium Sulfoaluminate ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag

This work aims to investigate the effect of additional flue gas desulfurization gypsum (FGDG) on the properties of calcium sulfoaluminate cement (CSAC) blended with ground granulated blast furnace slag (GGBFS). The hydration rate, setting time, mechanical strength, pore structure and hydration products of the CSAC-GGBFS mixture containing FGDG were investigated systematically. The results show that the addition of FGDG promotes the hydration of the CSAC-GGBFS mixture and improves its mechanical strength; however, the FGDG content should not exceed 6%.

Preparation and Characterization of Desulfurization Sorbent from Hydrated Lime and Blast Furnace Slag

2008 ◽  
Vol 368-372 ◽  
pp. 1548-1551
Author(s):  
Guo Zhuo Gong ◽  
Shu Feng Ye ◽  
Feng Li ◽  
Yan Bin Cui ◽  
Ya Jun Tian ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Flue Gas ◽  
Calcium Silicate ◽  
Blast Furnace Slag ◽  
Hydrated Lime ◽  
Experiment Design ◽  
Factorial Experiment ◽  
Calcium Silicate Hydrates ◽  
Furnace Slag

A series of sorbents for SO2 in flue gas were prepared from hydrated lime and blast furnace slag using a factorial experiment design. It is found that the reaction between hydrated lime and blast furnace slag is fast. The reactivities of the as-prepared sorbents are higher than those of hydrated lime alone due to the formation of calcium silicate hydrates, and hence the utilization of hydrated lime as well as the Ca in the blast furnace slag is improved. Furthermore, the effects of preparation variables on the reactivity of the sorbents are also discussed.

Characterization of Blast Furnace Slag−Ca(OH)2Sorbents for Flue Gas Desulfurization

2008 ◽  
Vol 47 (20) ◽  
pp. 7897-7902 ◽  
Author(s):  
Guozhuo Gong ◽  
Shufeng Ye ◽  
Yajun Tian ◽  
Yanbin Cui ◽  
Yunfa Chen
Keyword(s):  
Blast Furnace ◽  
Flue Gas ◽  
Blast Furnace Slag ◽  
Flue Gas Desulfurization ◽  
Furnace Slag

Experimental Investigation of Sintering Flue Gas Desulfurization with Steel Slag Using Dry CFB Method

2011 ◽  
Vol 71-78 ◽  
pp. 2547-2550 ◽  
Author(s):  
Jian An Zhou ◽  
Sheng Jun Zhong ◽  
Jun Xiang Dang ◽  
Xu Li
Keyword(s):  
Blast Furnace ◽  
Flow Rate ◽  
Flue Gas ◽  
Blast Furnace Slag ◽  
Gas Flow ◽  
Converter Slag ◽  
Steel Slag ◽  
Flue Gas Desulfurization ◽  
So2 Emission ◽  
Furnace Slag

SO2 Emission of sintering flue gas accounts for more than 70% of total SO2 emission of steel industry. The purpose of this paper was to use steel slag for desulfurization of sintering flue gas. Based on traditional circulating fluidized beds (CFB) for flue gas desulfurization (FGD), a new dry digestion CFB-FGD process was developed. The new process eliminated the traditional digestion procedure, and the functions of the reactor include preliminary dust collection, digestion and desulfurization. An pilot CFB installation with maximum flow rate of 8000 Nm3/h for flue gas desulfurization was established. The desulfurization effects of calces, converter slag and blast furnace slag were investigated under the following experimental conditions: temperature of inlet flue gas, 150 °C; temperature of outlet flue gas, 75 °C. Relative humidity, 13%; flue gas flow rate, 6800 Nm3/h; Ca/S ratio, 1.2. The results showed that all of the desulfurization agents had desulfurization capability and the desulfurization efficiency of calces was the best, followed by converter slag and blast furnace slag. The removal efficiency of steel slag ranged from 75% to 82%. Considering solid waste utilization, the application of steel slag in desulfurization using dry CFB has a promising future.

Influence of transition metal (Fe, Co, and Ag) doping on the MnOx–CeO2/Ti-bearing blast furnace slag catalyst for selective catalytic reduction of NOx with NH3 at low temperature

2017 ◽  
Vol 41 (19) ◽  
pp. 11299-11307 ◽  
Author(s):  
Rong Liu ◽  
Yifan Xu ◽  
Fei Ye ◽  
Feng Jia ◽  
Rui Xu
Keyword(s):  
Blast Furnace ◽  
Low Temperature ◽  
Transition Metal ◽  
Solid Waste ◽  
Selective Catalytic Reduction ◽  
Blast Furnace Slag ◽  
Catalytic Reduction ◽  
Industrial Solid Waste ◽  
Reduction Of Nox ◽  
Furnace Slag

Mn–Ce based catalysts supported on Ti-bearing blast furnace slag (industrial solid waste) and the doping of transition metals were studied.

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