Biochar produced in the large scale gasifier at ECN, from a blend of greenhouse waste (tomato residues see ID 3517) and clean wood (20 - 80 % in weight), gasification temp. @670°C
C,H and N determined according to UNE-CEN/TS 15104:2008 EX. S according to ASTM D4239-08, Cl according to ASTM E776-87. Erroneous data for ash metal content corrected after consultation with authors.