Acta Phys. -Chim. Sin. ›› 1999, Vol. 15 ›› Issue (01): 91-95.doi: 10.3866/PKU.WHXB19990118

• Note • Previous Articles    

Removal of H2 from CO by Selective Reaction of H2 with Metal Oxides

Zhu Yue-Xiang, Xu Gui-Ping, Xie You-Chang   

  1. Institute of Physical Chemistry,Peking University,Beijing 100871
  • Received:1998-01-06 Revised:1998-05-23 Published:1999-01-15
  • Contact: Xie You-Chang

Abstract:

研究了一些氧化物的H2-TPR及CO-TPR行为,结果发现,Co3O4/Al2O3,NiO/SiO2,NiO和Pd/NiO的H2-TPR温度要低于它们的CO-TPR温度,特别是Pd/NiO样品,它的H2-TPR温度为598K,而其CO-TPR温度高达949K,差别为351K,因此有可能利用Pd/NiO在一定温度下选择性地与CO中的H2反应而将其除去. 实验结果表明,Pd/NiO可在603K及4000h-1的条件下从H2(0.34%),CO(50%)和N2(余)的混合气中选择性地除去90%以上的H2,吸氢容量为每克样品55mL标准态H2.

Key words: H2-TPR, CO-TPR, H2 removal