Citation: SUN Xin, ZHAO Bin, WANG Zi-bin, LIANG Jing-long, LI Hui. Effect of H₂O(g) and SO₂(g) on the volatilization and transformation of sodium during Xinjiang high-sodium coal combustion[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(10): 1178-1184. shu

Effect of H₂O(g) and SO₂(g) on the volatilization and transformation of sodium during Xinjiang high-sodium coal combustion

School of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, China

Corresponding author: SUN Xin, sunxin8835@163.com
Received Date: 25 April 2017
Revised Date: 3 August 2017

Fund Project: The project was supported by the National Natural Science Foundation of China (514740013) and Natural Science Foundation of Hebei Province (E2016209163)the National Natural Science Foundation of China 514740013Natural Science Foundation of Hebei Province E2016209163

Figures(8)

Combustion experiment of Xinjiang coal with high sodium content was carried out in a horizontal tube furnace at 400-1 100℃. The occurrence of sodium in coal and ash was analyzed by sequential extraction method to study the release and transformation characteristics of sodium, especially the effect of H₂O(g) and SO₂(g) at 700℃ and 1 100℃. The results show that, the release ratio of sodium in coal increases gradually with the increase of temperature. The sodium in organic form vaporizes first, followed by water-soluble inorganic sodium, while the inorganic sodium in the form of aluminosilicate is difficult to vaporize due to high thermal stability. At lower temperature (700℃), H₂O(g) has a negative effect on the volatilization of sodium, while at higher temperature (1 100℃), the reductive atmosphere formed by the reaction of char and H₂O(g) promotes the volatilization of sodium. When the proportion of H₂O(g) is larger than 20% in inlet gas, the promotion effect of H₂O(g) is weakened. SO₂ can inhibit sodium volatilization, while the inhibiting effect of SO₂ becomes less significant as the temperature increases from 700℃ to 1 100℃. In the presence of both H₂O(g) and SO₂, the sodium volatilization at 700℃ is inhibited. The combination effect of H₂O(g) and SO₂ at 1 100℃ depends on its concentration. Under the atmosphere containing 20%H₂O and 2.0×10^-3 SO₂ the total volatilization ratio of sodium increases from 86% to 87.1%.
- Xinjiang high-sodium coal,
- SO₂,
- H₂O(g),
- volatilization,
- speciation transformation
1. [1]
  YAN Lu-guang, XIA Xun-cheng, LÜ Shao-qin, WU Jia-chun, LIN Min, HUANG Chang-gang. Great promotion of development of large scale integrative energy base in Xinjiang[J]. Adv Technol Electrical Eng Energy, 2011,30(1):1-7.
2. [2]
  LIU Jing, WANG Zhi-hua, XIANG Fei-peng, HUANG Zhen-yu, LIU Jian-zhong, ZHOU Jun-hu, CEN Ke-fa. Modes of occurrence and transformation of alkali metals in Zhundong coal during combustion[J]. J Fuel Chem Technol, 2014,42(3):316-322.
3. [3]
  WANG X, XU Z, WEI B, ZHANG L, TAN H, YANG T, MIKUL ČIĆ H, DUIĆ N. The ash deposition mechanism in boilers burning Zhundong coal with high contents of sodium and calcium:a study from ash evaporating to condensing[J]. Appl Therm Eng, 2015,80:150-159. doi: 10.1016/j.applthermaleng.2015.01.051
4. [4]
  XU J, YU D, FAN B, ZENG X, LÜ W, CHEN J. Characterization of Ash Particles from Co-combustion with a Zhundong Coal for Understanding Ash Deposition Behavior[J]. Energy Fuels, 2013,28(1):678-684.
5. [5]
  WU X, ZHANG X, YAN K, CHEN N, ZHANG J, XU X, DAI B, ZHANG J, ZHANG L. Ash deposition and slagging behavior of Chinese Xinjiang high-alkali coal in 3MW th pilot-scale combustion test[J]. Fuel, 2016,181:1191-1202. doi: 10.1016/j.fuel.2016.03.069
6. [6]
  SONG G, QI X, SONG W, LU Q. Slagging characteristics of Zhundong coal during circulating fluidized bed gasification[J]. Energy Fuels, 2016,30(5):3967-3974. doi: 10.1021/acs.energyfuels.6b00503
7. [7]
  ZHANG Shou-yu, CHEN Chuan, SHI Da-zhong, LÜ Jun-fu, WANG Jian, GUO Xi, DONG Ai-xia, XIONG Shao-wu. Situation of combustion utilization of high sodium coal[J]. Proc CSEE, 2013,33(5):1-12.
8. [8]
  GLAZER M P, KHAN N A, de JONG W, SPLIETHOFF H, SCHVRMANN H, MONKHOUSE P. Alkali metals in circulating fluidized bed combustion of biomass and coal:measurements and chemical equilibrium analysis[J]. Energy Fuels, 2005,19(5):1889-1897. doi: 10.1021/ef0500336
9. [9]
  OLESCHKO H, MÜLLER M. Influence of coal composition and operating conditions on the release of alkali species during combustion of hard coal[J]. Energy Fuels, 2007,21(6):3240-3248. doi: 10.1021/ef700400j
10. [10]
  TAKUWA T, NARUSE I. Detailed kinetic and control of alkali metal compounds during coal combustion[J]. Fuel Process Technol, 2007,88(11):1029-1034.
11. [11]
  CHEN Chuan, ZHANG Shou-yu, LIU Da-hai, GUO Xi, DONG Ai-xia, XIONG Shao-wu, SHI Da-zhong, LÜ Jun-fu. Existence form of sodium in high sodium coals from Xinjiang and its effect on combustion process[J]. J Fuel Chem Technol, 2013,41(7):832-838.
12. [12]
  BAI Xiang-fei, WANG Yue, DING Hua, ZHU Chuan, ZHANG Yu-hong. Modes of occurrence of sodium in Zhundong coal[J]. J China Coal Soc, 2015,40(12):2909-2915.
13. [13]
  SONG Wei-jian, SONG Guo-liang, ZHANG Hai-xia, FAN Jin-long, LÜ Qing-gang. Experimental study on alkali metal transformation during high-sodium Zhundong coal pyrolysis[J]. J Fuel Chem Technol, 2015,43(1):16-21.
14. [14]
  TAO Yu-jie, ZHANG Yan-wei, ZHOU Jun-hu, JING Xue-hui, LI Tao, LIU Jian-zhong, CEN Ke-fa. Mineral conversion regularity and release behavior of Na, Ca during zhundong coal's combustion[J]. Proc CSEE, 2015,35(5):1169-1175.
15. [15]
  LI G, WANG C A, YAN Y, JIN X, LIU Y, CHE D. Release and transformation of sodium during combustion of Zhundong coals[J]. J Energy Inst, 2016,89(1):48-56. doi: 10.1016/j.joei.2015.01.011
16. [16]
  BLÄSING M, MÜLLER M. Mass spectrometric investigations on the release of inorganic species during gasification and combustion of Rhenish lignite[J]. Fuel, 2010,89(9):2417-2424. doi: 10.1016/j.fuel.2009.11.042
17. [17]
  XU Lin-lin. Effect of Kaolin on the removal of alkali metals during high sodium coal combustion[D]. Tianjin:Tianjin University, 2015.
18. [18]
  KYI S, CHADWICK B L. Screening of potential mineral additives for use as fouling preventatives in Victorian brown coal combustion[J]. Fuel, 1999,78(7):845-855. doi: 10.1016/S0016-2361(98)00205-1
19. [19]
  ZHANG J, HAN C-L, YAN Z, LIU K, XU Y, SHENG C-D, PAN W-P. The varying characterization of alkali metals (Na, K) from coal during the initial stage of coal combustion[J]. Energy Fuels, 2001,15(4):786-793. doi: 10.1021/ef000140u
20. [20]
  CHEN An-he, YANG Xue-min, LIN Wei-gang. Release characteristics of chlorine and alkali metals during pyrolysis and gasification of biomass by thermodynamical equilibrium analysis[J]. J Fuel Chem. Technol, 2007,35(5):539-547.
21. [21]
  LIU Hui-min, WANG Chun-bo, HUANG Xing-zhi, Zhang Yue, Sun Xin. Volatilization of arsenic in coal during oxy-fuel combustion[J]. J Chem Ind Eng, 2015,66(12):5079-5087.
22. [22]
  BECIDAN M L, SØRUM L, LINDBERG D. Impact of municipal solid waste (MSW) quality on the behavior of alkali metals and trace elements during combustion:a thermodynamic equilibrium analysis[J]. Energy Fuels, 2010,24(6):3446-3455. doi: 10.1021/ef901144u
23. [23]
  ZHANG Xiao-yu, ZHANG Hai-xia, NA Song-jie. Migration characteristics and morphological changes of sodium during ashing process of Zhundong coal[J]. Clean Coal Technol, 2015,21(2):45-50.
24. [24]
  XING Wan-li. The competitive mechanism of sulfur and chlorine on the migration and transformation of alkali during biomass and coal co-combustion[D]. Shenyang:Shenyang Aerospace University, 2011.
1. [1]
  Fanchun Hu , Yuhan Ding , Caiting Deng , Jingjing Zhang , Wei Qu , Yanqin Rong , Nandi Chen , Mengjiao Zhou , Feifei An . SO₂ gas potentiator engineered for self-amplifying chemo-radiotherapy in breast tumors. Chinese Chemical Letters, 2026, 37(11): 112277-. doi: 10.1016/j.cclet.2025.112277
2. [2]
  Haojie Duan , Hejingying Niu , Lina Gan , Xiaodi Duan , Shuo Shi , Li Li . Reinterpret the heterogeneous reaction of α-Fe₂O₃ and NO₂ with 2D-COS: The role of SDS, UV and SO₂. Chinese Chemical Letters, 2024, 35(6): 109038-. doi: 10.1016/j.cclet.2023.109038
3. [3]
  Lintao Wu , Yujia Meng , Xumei Zheng , Yiqiao Bai , Chun Han , Zhijun Wang , Jie Yang , Xiaobi Jing , Yong Yao . Pillar[5]arene based prodrug as a GSH-responsive SO₂ nanogenerator for effective gas cancer therapy. Chinese Chemical Letters, 2025, 36(9): 110808-. doi: 10.1016/j.cclet.2024.110808
4. [4]
  Meitong Wu , Ke Wu , Shumin Feng , Li Xu , Mi Lei , Jianmei Chen , Shuang Li , Mian Qin , Dahui Liu , Guoqiang Feng . A NIR and ratiometric fluorescent probe for quantitative detection of SO₂ derivatives in Chinese medicinal materials and bioimaging in vivo. Chinese Chemical Letters, 2026, 37(1): 110979-. doi: 10.1016/j.cclet.2025.110979
5. [5]
  Yubang Li , Xixi Hu , Daiqian Xie . The microscopic formation mechanism of O + H2 products from photodissociation of H2O. Chinese Journal of Structural Chemistry, 2024, 43(5): 100274-100274. doi: 10.1016/j.cjsc.2024.100274
6. [6]
  Yuan Xue , Yanjun Zhang , Jun Du , Zushun Xu , Guangfu Liao , Qing Li . Introducing dual-functional site on carbon nitride: steering carrier migration and O₂ activation for boosted H₂O₂ photosynthesis. Acta Physico-Chimica Sinica, 2026, 42(9): 100311-0. doi: 10.1016/j.actphy.2026.100311
7. [7]
  Lihui Ou , Zhancheng Liu , Dai-Huo Liu , Zhi Zhang . Cl-adsorbed Cu(111)/H₂O interface selectively realizes electrochemical CO₂ reduction towards C₂H₄ product: Mechanistic understanding. Chinese Chemical Letters, 2026, 37(2): 111920-. doi: 10.1016/j.cclet.2025.111920
8. [8]
  Xuan Pang , Leyan Nian , Yongzhang Wang , Chunmei Huang . Na2(C6H4NO3)2∙H2O: A promising ultraviolet nonlinear optical crystal with strong second-harmonic generation effect and large birefringence. Chinese Journal of Structural Chemistry, 2026, 45(4): 100847-100847. doi: 10.1016/j.cjsc.2025.100847
9. [9]
  Jiaxin Zhang , Yingzhang Shi , Zhiwen Wang , Yujie Song , Dongpeng Yan . Photosynthesis of CH4 and H2O2 from CO2 and H2O over Pd/SnNb2O6 via strong metal-support interaction. Chinese Journal of Structural Chemistry, 2026, 45(5): 100866-100866. doi: 10.1016/j.cjsc.2026.100866
10. [10]
  Xia Jiang , Yan-Xin Chen , Rui Chen , Hao-Yan Shi , Ke-Xian Li , Wen-Ya Zhong , Jian-Feng Li , Can-Zhong Lu . Thermo-photocatalytic CO₂ conversion with H₂O to C₂ products in a continuous process by ZIF-67/biochar composites. Chinese Chemical Letters, 2026, 37(4): 111781-. doi: 10.1016/j.cclet.2025.111781
11. [11]
  Wei Zhang , Junxiang Liu , Chenyin Zheng , Zhiqing Shao , Hao Zhang , Dengfeng Yang , Xia Mao , Ping Huang , Xueyuan Chen , Wei Zheng . Unveiling the Jahn-Teller effect in the excited-state dynamics of Te4+ in 0D Cs2ScCl5·H2O for cryogenic temperature sensing. Chinese Journal of Structural Chemistry, 2026, 45(9): 100976-100976. doi: 10.1016/j.cjsc.2026.100976
12. [12]
  Xinyu Yin , Haiyang Shi , Yu Wang , Xuefei Wang , Ping Wang , Huogen Yu . Spontaneously Improved Adsorption of H₂O and Its Intermediates on Electron-Deficient Mn^(3+δ)+ for Efficient Photocatalytic H₂O₂ Production. Acta Physico-Chimica Sinica, 2024, 40(10): 2312007-0. doi: 10.3866/PKU.WHXB202312007
13. [13]
  Shuang Zhao , Fei Jia , Kaibei Zhan , Rui-Xi Wang , Pengfei Tan , Lin Shen , Li-Ming Wu , Ling Chen . Amino substitution strategy achieves significant blue shift while preserving high optical anisotropy: A₂(H₃C₃N₄S₂)₂•H₂O (A =NH₄, K, Rb, Cs). Chinese Chemical Letters, 2026, 37(3): 110625-. doi: 10.1016/j.cclet.2024.110625
14. [14]
  Lei Wu , Enshen Wang , Bao Jiang , Xueyin Fu , Kechen Sun , Maierhaba Abudoureheman , Zhaohui Chen , Qun Jing , Yuhong Su . Enhanced tripling-performance in [C(NH2)3]4P2O7·H2O as UV non-linear optical material due to π-conjugated cation and hydrogen bonding intervention. Chinese Journal of Structural Chemistry, 2026, 45(6): 100904-100904. doi: 10.1016/j.cjsc.2026.100904
15. [15]
  Chunhui Gao , Lurong Li , Guanwei Peng , Jinni Shen , Wenxin Dai , Zizhong Zhang . Efficient photocatalytic NADH regeneration and enzymatic CO₂ reduction over[Cp^*Rh(bpy)H₂O]²⁺ self-assembled CdIn₂S₄ flower-like microspheres. Acta Physico-Chimica Sinica, 2026, 42(3): 100165-0. doi: 10.1016/j.actphy.2025.100165
16. [16]
  Guoqiang Chen , Zixuan Zheng , Wei Zhong , Guohong Wang , Xinhe Wu . Molten Intermediate Transportation-Oriented Synthesis of Amino-Rich g-C₃N₄ Nanosheets for Efficient Photocatalytic H₂O₂ Production. Acta Physico-Chimica Sinica, 2024, 40(11): 2406021-0. doi: 10.3866/PKU.WHXB202406021
17. [17]
  Wei Zhong , Dan Zheng , Yuanxin Ou , Aiyun Meng , Yaorong Su . Simultaneously Improving Inter-Plane Crystallization and Incorporating K Atoms in g-C₃N₄ Photocatalyst for Highly-Efficient H₂O₂ Photosynthesis. Acta Physico-Chimica Sinica, 2024, 40(11): 2406005-0. doi: 10.3866/PKU.WHXB202406005
18. [18]
  Zheng Liu , Yuqing Bian , Graham Dawson , Jiawei Zhu , Kai Dai . Rational constructing of Zn_0.5Cd_0.5S-diethylenetriamine/g-C₃N₄ S-scheme heterojunction with enhanced photocatalytic H₂O₂ production. Chinese Chemical Letters, 2025, 36(9): 111272-. doi: 10.1016/j.cclet.2025.111272
19. [19]
  Hualin Jiang , Wenxi Ye , Huitao Zhen , Xubiao Luo , Vyacheslav Fominski , Long Ye , Pinghua Chen . Novel 3D-on-2D g-C₃N₄/AgI._x._y heterojunction photocatalyst for simultaneous and stoichiometric production of H₂ and H₂O₂ from water splitting under visible light. Chinese Chemical Letters, 2025, 36(2): 109984-. doi: 10.1016/j.cclet.2024.109984
20. [20]
  Shuangxi Li , Huijun Yu , Tianwei Lan , Liyi Shi , Danhong Cheng , Lupeng Han , Dengsong Zhang . NO_x reduction against alkali poisoning over Ce(SO₄)₂-V₂O₅/TiO₂ catalysts by constructing the Ce⁴⁺–SO₄²⁻ pair sites. Chinese Chemical Letters, 2024, 35(5): 108240-. doi: 10.1016/j.cclet.2023.108240

Get Citation

PDF

XML

Metrics

PDF Downloads(1)
Abstract views(1946)
HTML views(243)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Effect of H2O(g) and SO2(g) on the volatilization and transformation of sodium during Xinjiang high-sodium coal combustion

Metrics

通讯作者: 陈斌, bchen63@163.com

Effect of H₂O(g) and SO₂(g) on the volatilization and transformation of sodium during Xinjiang high-sodium coal combustion