Comparison of catalytic hydroliquefaction of Xiaolongtan lignite over FeS, FeS+S and SO42-/ZrO2

Shi-Gang Kang, Zhi-Min Zong, Heng-Fu Shui, Zhi-Cai Wang and Xian-Yong Wei

Energy, 2011, vol. 36, issue 1, 41-45

Abstract: The catalytic hydroliquefaction of Xiaolongtan lignite (XL, a Chinese lignite) was investigated in a batch autoclave. The effects of reaction temperature, time and initial H2 pressure on the yields of gaseous and extractable portions (GEPs) were discussed. The catalytic activity of FeS+S was compared with that of FeS and SO42-/ZrO2, respectively. The results show that FeS+S is more active for XL hydroliquefaction than the other two catalysts and affords the highest gas and oil (G & O) yields in the three catalysts. The highest total yield of GEPs from XL hydroliquefaction gets to 90.0%, while total yield of G & O is 61.1% at 420 °C for 30 min over FeS+S. The assistant catalysis of the added sulfur was discussed. The structural features of asphaltenes and preasphaltenes were examined by elemental and FTIR analyses.

Keywords: Lignite; Hydroliquefaction; Catalyst (search for similar items in EconPapers)
Date: 2011
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:36:y:2011:i:1:p:41-45

DOI: 10.1016/j.energy.2010.10.025

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