Conversion of carbon dioxide and methane in biomass synthesis gas for liquid fuels production

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S. A. Chattanathan, S. Adhikari, and S. Taylor, “Conversion of carbon dioxide and methane in biomass synthesis gas for liquid fuels production,” International Journal of Hydrogen Energy, vol. 37, no. 23, pp. 18031–18039, Dec. 2012.

Type Journal Article
Author Shyamsundar Ayalur Chattanathan
Author Sushil Adhikari
Author Steven Taylor
URL http://www.sciencedirect.com/science/article/pii/S0360319912019581
Volume 37
Issue 23
Pages 18031-18039
Publication International Journal of Hydrogen Energy
ISSN 0360-3199
Date December 2012
Journal Abbr International Journal of Hydrogen Energy
DOI 10.1016/j.ijhydene.2012.08.108
Abstract The premise of this research is to find whether methane (CH4) and carbon dioxide (CO2) produced during biomass gasification can be converted to carbon monoxide (CO) and hydrogen (H2). Simultaneous steam and dry reforming was conducted by selecting three process parameters (temperature, CO2:CH4, and CH4:steam ratios). Experiments were carried out at three levels of temperature (800 °C, 825 °C and 850 °C), CO2:CH4 ratio (2:1, 1:1 and 1:2), and CH4:steam ratio (1:1, 1:2 and 1:3) at a residence time of 3.5 × 103 gcat min/cc using a custom mixed gas that resembles biomass synthesis gas, over a commercial catalyst. Experiments were conducted using a Box-Behnken approach to evaluate the effect of the process variables. The average CO and CO2 selectivities were 68% and 18%, respectively, while the CH4 and CO2 conversions were about 65% and 48%, respectively. The results showed optimum conditions for maximum CH4 conversion was at 800 °C, CO2:CH4 ratio and CH4:steam ratios of 1:1.


Keywords:

 

  • Coke deposition
  • Dry reforming
  • Selectivity
  • Steam reforming
  • Synthesis gas

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