Experimental investigation of high temperature and high pressure coal gasification

Alexander Tremel, Thomas Haselsteiner, Christian Kunze and Hartmut Spliethoff

Applied Energy, 2012, vol. 92, issue C, 279-285

Abstract: Pyrolysis and gasification behavior is analyzed at operation conditions relevant to industrial scale entrained flow gasifiers. A wire mesh reactor and the Pressurized High Temperature Entrained Flow Reactor (PiTER) are used to measure volatile yield of Rhenish lignite, a bituminous coal and German anthracite at high temperature and high pressure. In the wire mesh reactor at 1000°C a significant influence of pressure on volatile yield is observed. For lignite the volatile yield (daf) decreases from 57wt% at atmospheric pressure to 53wt% at 5.0MPa. In the same pressure interval the volatile yield of the bituminous coal strongly decreases, whereas no significant influence of pressure on the volatile yield of anthracite is detected. In entrained flow experiments (PiTER) at higher temperature and 0.5MPa an enhanced devolatilization of the lignite is observed. At 1200°C, the maximum volatile yield is 62wt% and it increases to 67wt% at 1400°C.

Keywords: Gasification; Entrained flow; Pyrolysis; Char reactivity; Rhenish lignite (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (18)

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DOI: 10.1016/j.apenergy.2011.11.009

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