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Table 1 Proximate and ultimate analyses (wt%, dry basis) of algal biomass feedstocks

From: Liquid fuel generation from algal biomass via a two-step process: effect of feedstocks

  NO AuP ArP SL UP SJ LM PY
Ash 10.69 5.46 12.62 7.85 34.24 28.10 20.51 12.45
Volatiles 72.05 72.37 63.46 70.75 43.43 53.27 56.95 62.02
Fixed carbon 17.26 22.16 23.92 21.40 22.33 18.63 22.54 25.53
Lipid 11.30 12.70 6.20 28.60 3.20 2.70 2.22 0.56
Protein 41.69 53.56 62.69 46.88 27.50 14.44 28.13 36.19
Carbohydrate 36.32 28.28 18.49 18.29 35.06 54.76 49.16 50.80
C 50.10 52.07 44.16 53.99 30.04 32.24 38.08 40.55
H 7.45 7.15 6.27 7.53 4.66 4.71 4.87 6.18
N 6.67 8.57 10.03 7.50 4.40 2.31 4.50 5.79
O 32.92 25.00 21.65 20.58 30.35 19.78 20.72 29.40
S 0.76 0.62 0.64 0.56 1.73 0.64 0.52 2.03
HHV (MJ/kg) 22.61 23.84 20.21 25.40 12.22 14.20 16.44 18.25
Na 4.26 1.03 2.64 3.08 8.85 5.08 0.49 2.63
Mg 2.65 0.35 1.41 0.45 0.57 0.29 0.66 0.12
Al 0.11 0.15 0.34 0.14   1.11 0.30 1.08
Si 1.79 0.79 4.39 1.79 0.42 3.63 2.05 1.24
P 0.10 0.45 2.49 0.18 0.73 1.71 1.27 1.63
Cl 1.07 2.44 0.62 0.44 19.90 4.92 4.23 1.58
K 2.51 0.38 4.64 2.73   4.52 6.62 2.15
Ca 1.61 3.92 0.87 0.99 2.31 5.70 8.92 3.09
Ti 0.01   0.01   0.02   0.04  
Cr   0.02    0.01   0.01  
Mn 0.03 0.06 0.01 0.01 0.34 0.01 0.17  
Fe 0.28 0.08 0.73 0.67 0.21 3.50 0.77 1.51
Ni      0.06   0.08  
Cu 0.02 0.03 0.02    0.01 0.08 0.01
Zn 0.01   0.01 0.01 0.02 0.20 0.02 0.06
Br   0.04    0.39   0.02  
Sr   0.18 0.01   0.64   0.09  
Mo   0.01    0.03   0.03  
Ru        0.03