CO2 reforming of coke oven gas over a Ni/γAl2O3 catalyst to produce syngas for methanol synthesis

  • Bermudez J
  • Fidalgo B
  • Arenillas A
 et al. 
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The CO 2 reforming of coke oven gases (COG) was carried out over a Ni/γAl 2O 3 catalyst in order to obtain a suitable syngas for methanol synthesis. The influence of different operating conditions, such as temperature and volumetric hourly space velocity (VHSV), was studied. It was found that the H 2 present in the feed gas promotes the Reverse Water Gas Shift reaction (RWGS), which produces water. Nevertheless, the Ni/γAl 2O 3 catalyst showed a high selectivity to the CO 2 reforming reaction and it was possible to avoid the RWGS under certain operating conditions. Moreover, a part of the reaction could take place via a different path (RWGS followed by the steam reforming of methane instead of the direct dry reforming of methane). The deactivation of the Ni/γAl 2O 3 catalyst was also studied. Both the methane and the carbon dioxide conversions remained steady for 50 h without showing any sign of deactivation. However, the sinterization of the nickel particles and the presence of carbon deposits seemed to indicate that the catalyst would eventually loose catalytic activity. © 2011 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • CO 2 reforming
  • Coke oven gas
  • Methanol
  • Ni/γAl 2O 3 catalyst
  • Syngas

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  • Jose M. Bermudez

  • B. Fidalgo

  • Ana Arenillas

  • J. A. Menendez

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