A CHAR-SUPPORTED NANO-NIO CATALYST FOR BIOMASS SYNGAS CLEANUP AND CONDITIONING

作者：Wang D; Yuan W^*; Wang D; Kumar A

来源：Transactions of the ASABE, 2014, 57(1): 93-101.

DOI：10.13031/trans.57.10290

• Bioenergy
• biomass gasification
• nano-catalyst
• tar removal
• syngas conditioning

A newly developed nano-NiO on char catalyst was evaluated for syngas cleanup and conditioning in an updraft biomass gasifier. The nano-Ni/char catalyst was prepared by mechanically mixing nano-sized NiO powder with char particles. Its performance in terms of tar removal and syngas composition enhancement was compared with Ni/char and Ni/gamma-Al2O3 catalysts under various reforming conditions. The nano-Ni/char catalyst removed more than 99% of tars in the syngas, exhibiting similar or better catalytic performance than Ni/gamma-Al2O3 at the same conditions, especially at relatively low temperatures, smaller NiO loadings, or shorter residence times. Its performance was also better than Ni/char catalyst in all cases. Meanwhile, the nano-Ni/char catalyst also enhanced H-2 and CO concentrations in syngas, up to 36.73 vol% and 29.52 vol%, respectively. Furthermore, the nano-Ni/char catalyst did not deteriorate during the 8 h continuous durability test.

• 出版日期2014-2
• 单位厦门大学