Citation: Oyunbold Ts, ZHANG Ying-dou, ZHOU Chen-liang, LI Yang, CHEN Chen, ZHI Ke-duan, SONG Yin-min, TENG Ying-yue, HE Run-xia, LIU Quan-sheng. Hydrogen rich syngas production by the steam gasification of Mongolia Baganuur lignite and the catalytic effect of inherent minerals[J]. Journal of Fuel Chemistry and Technology, ;2013, 41(4): 414-421. shu

Hydrogen rich syngas production by the steam gasification of Mongolia Baganuur lignite and the catalytic effect of inherent minerals

1.
Department of Chemical Engineering, Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of Industrial Catalysis, Huhhot 010051, China

Corresponding author: LIU Quan-sheng,
Received Date: 12 November 2012
Available Online: 5 January 2013
Fund Project: 国家自然科学基金(21066008, 21266017) (21066008, 21266017) 高等学校博士学科点专项科研基金(20111514110001) (20111514110001) 内蒙古自然科学基金(2009ZD01) (2009ZD01) 内蒙古科技计划项目(20101502) (20101502) 内蒙古工业大学"煤化工特色学科"及内蒙古工业大学科学研究项目(ZS201138). (ZS201138)

The temperature programmed steam gasification (TPSG) of lignite from Baganuur, Mongolia was studied in a micro fixed-bed reactor with chromatography. The formation rate of H₂,CO and CO₂ during the TPSG were examined using the lignite samples pretreated by washing with HCl and NH₄OH solution or NaOH solution following the washing by HCl solution. All the samples were pyrolyzed at 650 ℃. The results show that a significant difference in the formation rate of gas components is presented for the tested lignite samples. The inherent minerals in the Baganuur lignite can accelerate the generation rate of H₂ and CO₂, but simultaneously reduce the generation rate of CO, which could manufacture a high H₂/CO mol ratio syngas. Also, some inherent minerals in the Baganuur lignite can remarkably enhance the steam gasification rate, which results in an drop of initial steam gasification reaction temperature by over 100 ℃. It is speculated that the enhanced steam gasification reaction of Baganuur lignite could be attributed to the effect of some inherent minerals on the water-gas shift reaction. Finally, the possible in-situ catalytic mechanism of inherent minerals in Baganuur lignite to the steam gasification reaction is discussed.
- Baganuur lignite,
- steam gasification,
- inherent minerals,
- catalytic effect,
- high hydrogen syngas
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