walnut shell (#365)

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
Ash typegrinding, 60 mesh, 14 hours at 575 degC
Submitter organisationECN (Netherlands)
Remarksash fusion temperatures according to ASTM D-1857
LiteratureE. A. Osman and J. R. Goss: Ash chemical composition, deformation and fusion temperatures for wood and agricultural residues. In: Proceedings of Winter meeting of the American Society of Agricultural Engineers, December 13-16, 1983, pp. 1-16 (1983).


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

Physical Properties

Ash melting behaviour

American standard method, measured in oxidizing conditions

IDT (initial deformation temperature) °C 820
FT (fluid temperature) °C 1 225

Ash Properties

Ash composition

SO3 wt% (ash) 8.48
P2O5 wt% (ash) 4.58
SiO2 wt% (ash) 13.60
Fe2O3 wt% (ash) 2.44
CaO wt% (ash) 7.00
MgO wt% (ash) 3.65
Na2O wt% (ash) 1.08
K2O wt% (ash) 21.50