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 10

The results of thermal catalytic cracking of naphtha at 650°C.

Yield					Product name
8%Zr/HZSM-5	2%Zr/HZSM-5	8%Ce/HZSM-5	2%Ce/HZSM-5	HZSM-5
650°C	650°C	650°C	650°C	650°C
6.60	6.80	7.21	9.34	8.47	Methane
3.53	3.14	3.85	4.04	3.01	Ethane
17.31	18.93	17.85	16.99	15.87	Ethylene
2.57	2.40	2.84	2.20	1.10	Propane
30.0	22.64	29.11	24.82	20.85	Propylene
0.33	0.48	1.35	1.08	0.10	i-butane
0.10	0.17	1.32	1.03	0.04	n-butane
0.20	0.75	1.67	1.54	0.42	Propadien
2.94	2.98	4.22	3.83	2.74	Acetylene
0.69	3.72	1.91	1.57	0.56	T2-butene
3.22	3.41	4.10	4.94	3.81	1-butene
3.21	0.90	1.27	0.94	0.0	Iso-butene
0.21	0.19	1.40	1.18	0.10	C2-butene
0.06	0.07	1.32	1.00	0.03	n-pentane
0.83	1.79	2.41	2.18	1.17	MA
0.58	0.88	2.15	2.67	1.93	Hydrogen
25.78	33.03	25.67	19.89	38.00	C^+