walnut shell (#2081)

ID-number#2081
Materialwalnut shell
Classification ECN Phyllis classification ▸ husk/shell/pit ▸ walnut ▸ walnut shell
NTA 8003 classification ▸ [200] biomassa uit land- en tuinbouw ▸ [230] restproducten (doppen) ▸ [234] (wal)noten
Submitter organisationECN (Netherlands)
Submission date2001-04-05
Remarkscharcoal yield 44.7% at 1 MPa, fixed-C yield 29.1%
LiteratureAntal,M.J., Allen,S.G., Dai,X, Shimizu,B., Tam,M.S. and Grønli: Attainment of the theoretical yield of carbon from biomass. Ind. Eng. Chem. Res. 39 (2000) 4024-4031

Values

Property Unit Value Std dev Det lim Lab Date Method Remarks
ar dry daf

Fuel Properties

Proximate Analysis

Moisture content wt% (ar)
Ash content wt% 2.02

Ultimate Analysis

Carbon wt% 49.95 50.98 Measured
Hydrogen wt% 5.87 5.99 Measured
Nitrogen wt% 0.62 0.63 Measured
Sulphur wt% 0.13 0.13 Measured
Oxygen wt% 42.52 43.40 Measured
Total (with halides) wt% 101.11 101.13 Calculated

Calorific Values

HHVMilne MJ/kg 19.59 20.00 Calculated

Chemical Analyses

Biochemical composition

Cellulose wt% (dry) 21.00 Sugar Analysis
Hemicellulose wt% (dry) 18.80 Sugar Analysis
Lignin wt% (dry) 32.70 Measured
Lignin acid insoluble (AIL) wt% (dry) 32.70 Measured

C5

Arabinan wt% (dry) 0.00
Xylan wt% (dry) 18.90
Sum C5 wt% (dry) 18.90 Calculated

C6

Mannan wt% (dry) 0.00
Galactan wt% (dry) 2.40
Glucan wt% (dry) 23.30
Sum C6 wt% (dry) 25.70 Calculated
Total ash + biochemical wt% (dry) 74.52 Calculated