US EPA

5931788 

Book/Book Chapter 

Partial oxidation of methane to methanol over MxOy/ZSM-5 (Mn, Fe, Co, and Ni) hierarchical transition metal oxide catalysts 

Nurgita, BG; Nurani, DA; Krisnandi, YK 

2019 

IOP Conference Series: Materials Science and Engineering
ISSN: 1757-8981
EISSN: 1757-899X 

IOP Conference Series-Materials Science and Engineering 

496 

10.1088/1757-899X/496/1/012032 

WOS:000481620500032 

The selective oxidation of methane to methanol is a key challenge in catalysis. The catalytic activities of nickel, cobalt, iron, and manganese oxides supported by hierarchical ZSM-5 zeolites for the partial oxidation of methane to methanol were studied. Hierarchical ZSM-5 was synthesized using a double-template method, in which tetrapropylammonium hydroxide was used as an MFI structure-directing agent and PDDA-M was used as a mesopore-directing agent. The synthesized hierarchical ZSM-5 was characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, and scanning electron microscopy with energy dispersive spectroscopy. MxOy/ZSM-5 catalysts were prepared using a wet impregnation method and were also extensively characterized. The catalytic test was performed at 423 K in a batch reactor with a CH 4 to N-2 ratio of 0.5:2 and 0.5 g of MxOy/ZSM-5 catalyst for 2 h. The hierarchical Fe2O3/ZSM-5 catalyst showed the highest yield of methanol, whereas Mn3O4/ZSM5 tended to produce formic acid. 

partial oxidation; hierarchical ZSM-5; metal oxide catalyst; methane; methanol