Kinetics of CO2/Coal Gasification in Molten Blast Furnace Slag

2012 ◽  
Vol 51 (49) ◽  
pp. 15872-15883 ◽  
Author(s):  
Peng Li ◽  
Qingbo Yu ◽  
Qin Qin ◽  
Wei Lei
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Coal Gasification ◽  
Kinetics Of ◽  
Furnace Slag

Nonisothermal Carbothermal Reduction Kinetics of Titanium-Bearing Blast Furnace Slag

JOM ◽  
2018 ◽  
Vol 70 (8) ◽  
pp. 1443-1448 ◽  
Author(s):  
Mengjun Hu ◽  
Ruirui Wei ◽  
Meilong Hu ◽  
Liangying Wen ◽  
Fangqing Ying
Keyword(s):  
Blast Furnace ◽  
Carbothermal Reduction ◽  
Blast Furnace Slag ◽  
Reduction Kinetics ◽  
Kinetics Of ◽  
Furnace Slag

Precipitation kinetics of anosovite in modified high Ti-bearing blast furnace slag

2015 ◽  
Vol 112 (1) ◽  
pp. 105 ◽  
Author(s):  
Shan Ren ◽  
Jianliang Zhang ◽  
Qingcai Liu ◽  
Kejiang Li ◽  
Baojun Zhao
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Precipitation Kinetics ◽  
Kinetics Of ◽  
Furnace Slag

Feasibility Study for the System of Coal Gasification by Molten Blast Furnace Slag

2010 ◽  
Vol 97-101 ◽  
pp. 2347-2351 ◽  
Author(s):  
Peng Li ◽  
Qin Qin ◽  
Qing Bo Yu ◽  
Wen Ya Du
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Heat Recovery ◽  
Coal Gasification ◽  
Hot Water ◽  
Environmental Benefits ◽  
Sensible Heat ◽  
Recovery System ◽  
Heat Recovery System ◽  
Furnace Slag

At present, molten blast furnace slag is quenched rapidly using a large amount of water to produce a glassy-granulated slag without any recovery of its much sensible heat, polluting water and atmosphere. To solve these problems, a new heat recovery system is proposed. This system consists of melting gasifier, the 2nd gasifier and boiler in order to achieve stepped energy using. The melting gasifier and the 2nd gasifier use the endothermic heat of gasification reaction instead of sensible heat to recover the energy of molten blast furnace slag. The possibility of the new heat recovery system is studied. The reactions in melting gasifier are studied using STA409PC thermal analyzer and HSC chemistry software. The economic and environmental benefits are calculated based on the heat and mass balances. The results indicate that this method is possible and better than conventional methods such as hot water or steam production. The molten BF slag acts as not only thermal media but also good catalyst. The efficiency of melting gasifier is high and without pollution. Besides, this method can bring huge economic and environmental benefits which are important to the survival and sustainable development of iron-steel enterprises.

Crystallization Behavior and Growing Process of Rutile Crystals in Ti-Bearing Blast Furnace Slag

2016 ◽  
Vol 35 (8) ◽  
pp. 787-797
Author(s):  
Wu Zhang ◽  
Li Zhang ◽  
Yuhai Li ◽  
Xin Li
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Crystallization Process ◽  
Elevated Temperatures ◽  
Avrami Equation ◽  
X Ray Diffraction ◽  
Experimental Parameters ◽  
Kinetics Of ◽  
Crystal Seed ◽  
Furnace Slag

AbstractThe aim of the present work is to elucidate crystallization and growing process of rutile crystals in Ti-bearing blast furnace slag. The samples were taken from the liquid slag and quenched at once at elevated temperatures in order to analyze phase transaction of titanium and grain size of rutile crystals. Crystallization and growing kinetics of rutile crystals under elevated temperature conditions were calculated, and the crystallization process of rutile crystals under isothermal conditions was expressed by Avrami equation. The effects of experimental parameters, such as experimental temperatures, SiO2 addition, cooling rate, crystal seed addition and oxygen flow, were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), the optimal conditions for rutile crystals to grow up were obtained. Distribution and movement state of rutile crystals in the slag were analyzed.

Kinetics of the leaching of TiO2 from Ti-bearing blast furnace slag

2008 ◽  
Vol 18 (2) ◽  
pp. 275-278 ◽  
Author(s):  
Xiao-hua LIU ◽  
Guo-sheng GAI ◽  
Yu-fen YANG ◽  
Zhi-tong SUI ◽  
Li LI ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Kinetics Of ◽  
Furnace Slag

scholarly journals Thermodynamic analysis of synergistic coal gasification using blast furnace slag as heat carrier

2016 ◽  
Vol 41 (3) ◽  
pp. 1502-1512 ◽  
Author(s):  
Wenjun Duan ◽  
Qingbo Yu ◽  
Huaqing Xie ◽  
Junxiang Liu ◽  
Kun Wang ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Thermodynamic Analysis ◽  
Heat Carrier ◽  
Blast Furnace Slag ◽  
Coal Gasification ◽  
Furnace Slag

scholarly journals Characterizations of the hot blast furnace slag on coal gasification reaction

2016 ◽  
Vol 98 ◽  
pp. 936-943 ◽  
Author(s):  
Wenjun Duan ◽  
Qingbo Yu ◽  
Junxiang Liu ◽  
Limin Hou ◽  
Huaqing Xie ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Coal Gasification ◽  
Hot Blast ◽  
Gasification Reaction ◽  
Furnace Slag
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