Steam reforming of hydrocarbons and water gas shift reaction through a wall of stabilized zirconia used as hydrogen separator.

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概要

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• Steam reforming of CH<SUB>4</SUB> and C<SUB>2</SUB>H<SUB>4</SUB> or water gas shift reaction was allowed to occur through a wall of stabilized zirconia acting as hydrogen separator. The reactions proceed <I>via</I> transport of oxygen ions in the zirconia lattice from cathode to anode of the wall, accompanying an electron transfer in the reverse direction through the outer lead wire. Hydrogen without CO<SUB>2</SUB>, CO, or hydrocarbons can be obtained directly by each reaction at the cathode side. The rate of hydrogen production increases exponentially with a rise in applied potentials <I>via</I> chromel-constantan thermocouples. The presence of reducing gas such as CO, CH<SUB>4</SUB>, or H<SUB>2</SUB> at the anode side will decrease considerably the applied potential required to produce hydrogen at the same rate. A tentative reaction mechanism is proposed on the basis of kinetic information of the reaction.

• 公益社団法人 日本化学会の論文

著者

• Otsuka Kiyoshi

  Department Of Applied Chemistry Graduate School Of Science And Engineering Tokyo Institute Of Techno

• Morikawa Akira

  Department Of Chemistry Faculty Of Science Nagoya University

• Yokoyama Seiichiro

  Department of Chemical Engineering, Tokyo Institute of Technology

• Morikawa Akira

  Department of Chemical Engineering, Tokyo Institute of Technology

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