The pyrolysis of Shengli lignite (SL-Raw) and sodium-based anion doped into coal samples (SL-NaOH, SL-Na2CO3 and SL-NaNO3) was analyzed by investigating the effects of sodium and alkalinity on the differences in crystallite structure of chars by XRD, Raman, XPS and FT-IR. The steam gasification of chars was performed in a fixed-bed reactor. The char gasification results showed that sodium and alkalinity have a catalytic effect on the char reactivity, and the chars have better activity when the sodium compounds are more alkaline. The XRD and Raman results showed that NaNO3, Na2CO3 and NaOH inhibited the growth of the aromatic ring structure, and the carbon microcrystalline structure of the chars was destroyed due to sodium atoms during pyrolysis. The XPS and FT-IR results indicated that the phenolic hydroxyl (C-OH) was converted into sodium phenolate (C-O-Na), and the reactivity of chars was better. (C) 2017 Elsevier B.V. All rights reserved.
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Korea Elect Power Res Inst, Adv Power Generat & Combust Grp, Yusung Gu, Taejon 305380, South KoreaKorea Elect Power Res Inst, Adv Power Generat & Combust Grp, Yusung Gu, Taejon 305380, South Korea
Ahn, DH
Gibbs, BM
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Gibbs, BM
Ko, KH
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Ko, KH
Kim, JJ
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R China
Han-Ping, Kuang
Jun-Hu, Zhou
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R China
Jun-Hu, Zhou
Zhi-Jun, Zhou
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R China
Zhi-Jun, Zhou
Han-Zhong, Liu
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R China
Han-Zhong, Liu
Ke-Fa, Cen
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R China
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E China Univ Sci & Technol, Dept Chem Engn Energy, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Dept Chem Engn Energy, Shanghai 200237, Peoples R China
Jiang, Ming-Quan
Zhou, Rong
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Zhou, Rong
Hu, Jie
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E China Univ Sci & Technol, Dept Chem Engn Energy, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Dept Chem Engn Energy, Shanghai 200237, Peoples R China
Hu, Jie
Wang, Fu-Chen
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E China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Dept Chem Engn Energy, Shanghai 200237, Peoples R China
Wang, Fu-Chen
Wang, Jie
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Korea Elect Power Res Inst, Adv Power Generat & Combust Grp, Yusung Gu, Taejon 305380, South KoreaKorea Elect Power Res Inst, Adv Power Generat & Combust Grp, Yusung Gu, Taejon 305380, South Korea
Ahn, DH
Gibbs, BM
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Gibbs, BM
Ko, KH
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Ko, KH
Kim, JJ
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R China
Han-Ping, Kuang
Jun-Hu, Zhou
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R China
Jun-Hu, Zhou
Zhi-Jun, Zhou
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R China
Zhi-Jun, Zhou
Han-Zhong, Liu
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R China
Han-Zhong, Liu
Ke-Fa, Cen
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Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R ChinaZhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Peoples R China
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E China Univ Sci & Technol, Dept Chem Engn Energy, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Dept Chem Engn Energy, Shanghai 200237, Peoples R China
Jiang, Ming-Quan
Zhou, Rong
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E China Univ Sci & Technol, Dept Chem Engn Energy, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Dept Chem Engn Energy, Shanghai 200237, Peoples R China
Zhou, Rong
Hu, Jie
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E China Univ Sci & Technol, Dept Chem Engn Energy, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Dept Chem Engn Energy, Shanghai 200237, Peoples R China
Hu, Jie
Wang, Fu-Chen
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E China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat, Shanghai 200237, Peoples R ChinaE China Univ Sci & Technol, Dept Chem Engn Energy, Shanghai 200237, Peoples R China
Wang, Fu-Chen
Wang, Jie
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