Catalytic performance of Co, Fe on MCM-41 synthesized from illite waste for gasification of torrefied cassava rhizome

The catalytic gasification of torrefied cassava rhizome (TCR) with metals (Co, Fe) on MCM-41 was studied throughout this work. The focus of this research is to synthesize, evaluate and analyze the performance of ordered mesoporous MCM-41 employing illite clay waste as silica and aluminum sources under hydrothermal pressure condition using cetyltrimethylammonium bromide as structure template. The characterization of catalysts was carried out by low angle X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), and N-2 physisorption isotherm which indicated the formation of well-ordered MCM-41 mesoporous materials, high surface area (952 m(2)/g) and corresponds to a type IV isotherm of hysteresis loop, respectively. Co and Fe were deposited on synthesized MCM-41 surface by impregnation method. The catalytic performance was tested in an ex-situ gasification process at 700 degrees C. The 5Co/MCM-41 catalyst significantly increased the carbon conversion from 68.63% to 77.30% while using 5Fe/MCM-41 catalyst yielded the highest H-2/CO ratio of 0.66, hydrogen conversion of 26.80% and gas heating value of 10.72 MJ/kg. The results indicated that the illite waste may be converted to high-value zeolite material while TCR is a potential greener fuel feedstock for gasification. This novel method to synthesize the MCM-41 from illite clay waste utilized doping of cobalt and iron metal catalyst to increase the efficiency of gasification of TCR. (C) 2021 The Authors. Published by Elsevier Ltd.

Automated summary

This study examined the catalytic gasification of torrefied cassava rhizome (TCR) with metals (Co, Fe) on MCM-41. The catalysts were synthesized using illite clay waste as silica and aluminum sources under hydrothermal pressure, resulting in well-ordered MCM-41 with high surface area. The addition of Co and Fe catalysts significantly improved the efficiency of the gasification process for TCR.