JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 34 Issue 5
September 2019
Article Contents
HONG Zhikang, LIAO Chuanhua and ZHU Yuezhao. Experimental study on the hydrogen production by gasification of lignite in supercritical water[J]. Journal of Light Industry, 2019, 34(5): 61-67. doi: 10.3969/j.issn.2096-1553.2019.05.009
Citation: HONG Zhikang, LIAO Chuanhua and ZHU Yuezhao. Experimental study on the hydrogen production by gasification of lignite in supercritical water[J]. Journal of Light Industry, 2019, 34(5): 61-67. doi: 10.3969/j.issn.2096-1553.2019.05.009 shu

Experimental study on the hydrogen production by gasification of lignite in supercritical water

  • Received Date: 2018-12-03
  • The effect of different reaction temperature, reaction pressure and the ratio of water to lignite on the H2 production by gasification of lignite in supercritical water was investigated by using lignite as raw material and intermittent high temperature and high pressure reactor. Then, the catalytic effect of Fe powder and Ni powder with different mass fractions on the production of H2 was studied separately. The experimental results showed that the increase of reaction temperature could greatly improve the yield of H2. The suitable reaction temperature was 405℃. The effect of reaction pressure on H2 production was not obvious, but the higher reaction pressure would slightly increase the yield of CH4, the appropriate reaction pressure was chosen as 23 MPa; higher ratio of water to lignite was conducive to the production of H2, but the cost would also increase, the appropriate ratio of water to lignite was selected as 10:1; the addition of metal catalyst Fe powder and Ni powder could significantly improve the yield of H2. When the mass fraction was low, the catalytic effect of Ni powder was better than that of Fe powder. When the mass fraction was higher, the catalytic effect of Fe powder was better.
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