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 11

The results of thermal catalytic cracking of naphtha at 700°C.

Yield					Product name
8%Zr/HZSM-5	2%Zr/HZSM-5	8%Ce/HZSM-5	2%Ce/HZSM-5	HZSM-5
700°C	700°C	700°C	700°C	700°C
6.66	6.94	9.92	9.81	10.41	Methane
3.56	3.21	4.30	4.25	3.71	Ethane
19.92	19.10	19.06	18.84	19.29	Ethylene
2.60	2.45	2.34	2.31	1.35	Propane
27.60	21.96	26.47	26.59	22.64	Propylene
0.33	0.49	1.14	1.13	0.13	i-Butane
0.20	0.17	1.09	1.08	0.05	n-Butane
0.21	0.76	1.64	1.62	0.52	Propadien
2.97	3.04	4.07	4.02	0.37	Acetylene
3.70	1.74	1.66	1.64	0.69	T2-Butene
3.25	3.48	5.26	5.19	4.69	1-Butene
3.25	0.92	1.00	0.99	0	Iso-butene
0.21	0.19	1.25	1.24	0.12	C2-Butene
0.06	0.08	1.07	1.05	0.04	n-Pentane
0.84	1.83	2.31	2.28	1.43	MA
0.59	0.90	2.83	2.80	2.38	Hydrogen
25.61	35.60	17.94	18.93	31.97	C^+