Abstract

The tar contamination along with the biomass producer gas needs to be removed for avoiding the tar problems to all systems of biomass gasification. In this paper, toluene and naphthalene were used as tar model compounds along with nitrogen gas as carrier gas. The conditions of catalytic cracking of tar models were fixed at temperature of 800 °C, residence time of 0.24 s, and gas flow rate of 3.8 LPM. The Ni/Mg/ Al2O3 catalyst has been good displayed on efficiency rate of tar removal through heat transfer of microwave irradiation with almost stable of differentiation rate. The results also found that the slight deactivation on the modified catalyst caused by the magnesium addition into catalyst performed as promoter for reduction of carbon deposit on catalyst surface. In order that, naphthalene was harder to destruct than toluene.

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