Journal of Northeastern University Natural Science ›› 2016, Vol. 37 ›› Issue (12): 1735-1739.DOI: 10.12068/j.issn.1005-3026.2016.12.014

• Materials & Metallurgy • Previous Articles     Next Articles

Thermodynamic Analysis of Steam Reforming of Tar Component in Raw COG for Hydrogen Production

XIE Hua-qing, ZHANG Jian-rong, YU Qing-bo, QIN Qin   

  1. School of Metallurgy, Northeastern University, Shenyang 110819, China.
  • Received:2015-07-20 Revised:2015-07-20 Online:2016-12-15 Published:2016-12-23
  • Contact: YU Qing-bo
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Abstract: The thermodynamic analysis of the steam reforming of 1-methylnaphthalene as the tar model compound of the raw coke oven gas was carried out using the HSC Chemical software. With the increases of temperature and the steam/carbon (S/C) ratio, the amount and concentration of H2 gradually increased, however their changes became gentle when the temperature passed 500℃ or the S/C ratio was over 8∶1.With the pressure increasing, the H2 amount gradually decreased, therefore the optimal pressure for 1-methylnaphthalene steam reforming was the normal pressure. After CaO was added as CO2 sorbent, the steam reforming reaction process was enchanced, resulting in the significant improvement of the H2 amount and concentration. With the CaO/C ratio of 2∶1 and S/C ratio of 8∶1, the H2 amount and concentration could reach over 95% at the temperature of 400~650℃.

Key words: raw coke oven gas, tar model compound, steam reforming, CO2 sorption enhancement, hydrogen production

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