Type of Biomass	F. Carbon (%)	Carbon (%)	Hydrogen (%)	Oxygen (%)	Nitrogen (%)	Sulfur (%)	Chlorine (%)	Residue (%)
Crop Residues	20.15	46.76	5.4	40.72	1	0.02	0.03	6.07
Alfalfa seed straw	21.54	51.3	5.29	40.9	0.66	0.01	0.04	1.8
Barley straw	20.9	39.92	5.27	43.81	1.25			9.75
Bean Straw	18.77	42.97	5.59	44.93	0.83	0.01	0.13	5.54
Corn cobs	18.54	46.58	5.87	45.46	0.47	0.01	0.221	1.4
Corn stover	19.25	43.65	5.56	43.31	0.61	0.01	0.6	6.26
Cotton stalks	21.2	47.05	5.35	40.77	0.65	0.210	0.08	5.89
Rice straw (fresh)	17.25	41.78	4.63	36.57	0.7	0.08		15.9
Rice straw (weathered)	13.33	34.6	3.93	35.38	0.93	0.16		25
Sorghum stalks		40	5.2	40.7	1.4	0.22	12.5
Wheat straw	19.8	43.2	55	39.4	0.61	0.11	0.28	11.4
Sudan grass	18.6	44.58	5.35	39.18	1.21	0.08	0.13	9.47

Ultimate Elemental Analysis (% by Weight, Dry basis)