Investigation of Effective Parameters Ce and Zr in the Synthesis of H-ZSM-5 and SAPO-34 on the Production of Light Olefins from Naphtha

Table 5

HZSM-5/SAPO-34 catalyst structural information prepared based on BET analysis.

Catalyst	BET surface area (m^2/g)	Total pore volume (cm^3/g)	Vmicro (cm^3/g)	Vmeso (cm^3/g)
SAPO-34	573	0.280	0.246	0.034
2%Ce/SAPO-34	407	0.204	0.180	0.024
8%Ce/SAPO-34	390	0.194	0.175	0.019
2%Zr/SAPO-34	392	0.185	0.164	0.021
5%Zr/SAPO-34	385	0.179	0.162	0.017
2%Ce-2%Zr/SAPO-34	417	0.237	0.206	0.031
HZSM-5	442.72	0.258	0.132	0.126
2%Ce/HZSM-5	366.65	0.220	0.069	0.151
8%Ce/HZSM-5	361.21	0.210	0.085	0.125
2%Zr/HZSM-5	375.42	0.230	0.089	0.141
8%Zr/HZSM-5	370.31	0.210	0.098	0.112
2%Ce-2%Zr/HZSM-5	386.41	0.237	0.062	0.175
2%Ce-8%Zr/HZSM-5	368.64	0.223	0.084	0.139
8%Ce-2%Zr/HZSM-5	351.89	0.195	0.092	0.103
8%Ce-8%Zr/HZSM-5	360.35	0.210	0.096	0.116