Reaction Kinetics of Chlorine Corrosion to Heating Surfaces during Coal and Biomass Cofiring

Table 2

Ultimate analysis of ash samples/wt.%.

Sample	Na	Mg	Al	Si	P	S	Cl	K	Ca	Fe
Corn stalk ash	0.84	6.88	0.21	5.53	1.73	1.15	34.90	45.62	2.79	0.35
Wheat stalk ash	1.16	4.22	1.03	31.38	1.98	4.06	15.39	32.70	8.08	0.00
Lean coal ash	1.21	2.66	27.15	56.32	0.49	0.33	0.71	1.45	2.22	7.46