Grasses and Straws: Tropical and Temperate Energy Crops

Appendix C.5 Alkali Deposit Investigation Samples Alkali Deposits Found in Biomass Power Plants: A Preliminary Investigation of Their Extent and Nature
National Renewable Energy Laboratory Subcontract TZ-2-11226-1


fuelsc5.xls
FuelSugar CaneBana GrassSwitchgrassSwitchgrassSwitchgrassBuffalo Gourd
TypeBagasse, HIHI, ImmatureSummer-MM, MNDakota Leaf, MNColumbus, OHAlbuquerque NM
As Rec'dDryAs Rec'dDryAs Rec'dDryAs Rec'dDryAs Rec'dDryAs Rec'dDry
Proximate Analysis
Fixed Carbon10.7011.9515.9316.6812.4714.3713.1415.0312.9314.3412.2613.63
Volatile Matter76.7285.6170.1373.4471.9382.9471.0781.3669.1476.6973.5781.74
Ash2.192.449.439.882.332.693.153.618.098.974.174.63
Moisture10.39--4.51--13.27--12.64--9.84--10.00--
TOTAL100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00100.00
Ultimate Analysis
Carbon43.5948.6443.0245.0641.2147.5141.4547.4542.0946.6839.4244.24
Hydrogen5.265.875.185.425.035.805.025.755.255.825.536.14
Oxygen38.3942.8536.9538.6937.8143.6037.0242.3733.8737.5738.0542.30
Nitrogen0.140.160.800.840.310.360.650.740.690.772.202.44
Sulfur0.040.040.110.110.040.040.070.080.170.190.230.25
Ash2.192.449.439.882.332.693.153.618.098.974.174.63
Moisture10.39--4.51--13.27--12.64--9.84--10.00--
TOTAL100.00100.00100.00100.00100.00100.00100.00100.00100.00100.0099.60100.00
HHV, Btu/lb7,3178,1667,1937,5336,9207,9797,0018,0147,0027,7667,0177,797
Chlorine %0.030.030.790.83<0.010.010.030.030.170.19.
Water Soluble Alkalis %
Na2O0.0160.0170.0040.0040.0030.003
K2O3.5203.6860.1340.1540.2080.238
CaO
Elemental Composition
SiO246.6133.6561.6461.2365.187.17
Al2O317.690.801.320.574.511.54
TiO22.630.070.190.370.240.05
Fe2O314.140.631.080.792.030.74
CaO4.473.5711.1112.065.6012.10
MgO3.331.714.865.423.004.30
Na2O0.790.380.640.430.585.09
K2O4.1542.808.247.6311.6034.00
SO32.080.850.801.110.448.13
P2O52.722.743.093.564.509.00
CO2/other8.9714.17
Undetermined1.393.837.036.832.323.71
TOTAL100.00100.00100.00100.00100.00100.00
Alkali, Lb/MMBtu0.155.660.300.361.412.32


Last Updated: 2/27/96

Analyst/Contact: Tom Miles, Jr.
T. R. Miles, Consulting Design Engineer, Portland, Oregon U.S.A.

E-Mail Address: tmiles@teleport.com