Effect of acidic compositions on ash fusion temperatures

WEI Li-hong; MA Ting-ting; LI Run-dong; YANG Tian-hua; LI Yan-ji; WEN Li-na

Volume 42 Issue 10

Oct. 2014

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WEI Li-hong, MA Ting-ting, LI Run-dong, YANG Tian-hua, LI Yan-ji, WEN Li-na. Effect of acidic compositions on ash fusion temperatures[J]. Journal of Fuel Chemistry and Technology, 2014, 42(10): 1205-1211.

Citation:

WEI Li-hong, MA Ting-ting, LI Run-dong, YANG Tian-hua, LI Yan-ji, WEN Li-na. Effect of acidic compositions on ash fusion temperatures[J]. Journal of Fuel Chemistry and Technology, 2014, 42(10): 1205-1211.

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Effect of acidic compositions on ash fusion temperatures

College of Energy and Environmental, Shenyang Aerospace University, Shenyang 110136, China

Received Date: 2014-05-29
Rev Recd Date: 2014-07-30
Publish Date: 2014-10-30

Abstract

Abstract

Ash fusion characteristic parameters of 129 typical original ash samples were collected locally and abroad, which included coals, sewage sludge and blends of sewage sludge/coal. These data were used to study the effect of acidic oxides including SiO₂, Al₂O₃, TiO₂ and P₂O₅ on ash fusion temperatures (AFTs). The refractory minerals such as quartz, metakaolin, mullite and rutile formed by SiO₂, Al₂O₃ and TiO₂ improve the AFTs. The results show that Al₂O₃ is a main factor in determining AFTs. Furthermore, the non-metal oxides P₂O₅ has a significant correlation with the FT of sewage sludge and sewage sludge/coal blends and its increase can obviously reduce AFTs, which might be caused by the higher P₂O₅ content in sewage sludge.
- acidic composition,
- ash flow temperature,
- ash,
- sewage sludge,
- coal

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References(33)

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