Improvement of Lifetime Using Transition Metal-Incorporated SAPO-34 Catalysts in Conversion of Dimethyl Ether to Light Olefins

Table 1

Textural properties of the SAPO-34 and MeAPSO-34 catalysts.

Catalyst	BET surface area (m^2/g)	Total pore volume (cm^3/g)	Adsorption average pore width (nm)
SAPO-34	538.79	0.39	2.92
MnAPSO-34	543.30	0.25	2.42
FeAPSO-34	533.27	0.26	2.62
NiAPSO-34	564.31	0.26	2.34