Table 3. Carbon yields of products as a function of time on stream.

	Time on stream (min)
	5	10	20	30	45
Ethylene	4.77	4.04	3.71	3.43	2.80
Propylene	1.14	0.78	0.71	0.64	0.40
Butene	0.14	0.21	0.30	0.37	1.04
CH4	2.17	2.09	1.78	1.44	1.43
CO	10.36	9.55	10.01	10.31	10.25
CO2	0.68	0.46	0.25	0.24	0.08
Benzene	17.74	15.40	11.56	8.40	6.44
Toluene	4.68	4.25	3.46	2.97	1.97
Naphthalene	6.00	5.77	3.05	2.31	1.96
Phenol	0.53	0.76	1.81	2.35	6.21
2-Hydroxybenzaldehyde	—	3.00	3.71	4.48	5.21
2-Methylphenol	—	—	0.40	0.57	0.64
2-Ethylphenol	—	—	—	—	0.19
1,2-Benzenediol	0.00	0.00	8.97	12.55	16.24
Guaiacol	2.82	4.89	7.22	9.87	12.94
Olefins	6.05	5.02	4.72	4.45	4.24
C1	13.21	12.09	12.04	11.99	11.76
Aromatics	28.42	25.42	18.07	13.67	10.37
Phenols	0.53	3.77	14.90	19.96	28.48
Coke	18.19	10.77	6.93	5.55	4.11