Tar mitigation in biomass gasifiers using nano-structured Ni/SiO₂ catalyst: an experimental study
by K. Shanmuganandam; M. Venkata Ramanan; S. Premnath; J. Anichai
Progress in Industrial Ecology, An International Journal (PIE), Vol. 9, No. 2, 2015

Abstract: The effectiveness of a nano-structured Ni/SiO₂ catalyst for tar mitigation in a 15 kW biomass gasifier is investigated. The nano-structured Ni/SiO₂ catalyst was synthesised by deposition-precipitation (DP) method. The characterisation of the nano-catalyst has been accomplished using X-ray diffraction (XRD), high-resolution scanning electron microscope (HR-SEM), high-resolution transmission electron microscope (HR-TEM) and Brunauer-Emmett-Teller (BET) method. The average size of nano-catalyst particles was found to be 20 nm. The experiments conducted with the nano-structured Ni/SiO₂ catalyst resulted in tar cracking efficiency of 93%. In addition, the H₂ and CO composition increased considerably, thereby enhancing the calorific value of producer gas.

Online publication date: Mon, 16-Nov-2015

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