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CHARACTERIZATION LABORATORY

FEEDSTOCK, BIOMASS AND PELETS CHARACTERIZATION

Determination

Method

Sample Conditioning Stabilization and grinding
Determination of cellulose, hemicellulose, lignin (acid-insoluble + acid-soluble), and acid-insoluble ash LAP 002 NREL (“Determination of structural Carbohydrates and lignin in Biomass”)
Dry Weight UNE-EN 14774-2:2009
Proteins UNE-EN 15104:2011. Elemental analysis (factor 6.25)
Ash UNE-EN 14775:2010
Determination of insoluble solids content (WIS: water-insoluble solids) NREL-LAP: “Determination of Insoluble Solids in Pretreated Biomass Material”
Determination of soluble oligomer content in the liquid fraction NREL-LAP “Determination of Sugars, Byproducts, and Degradation Products in Liquid Fraction Process Samples.”
Determination of inhibitors content NREL-LAP “Determination of Sugars, Byproducts, and Degradation Products in Liquid Fraction Process Samples.”
Determination of Extractives NREL (“Determination of Extractives in Biomass”)
Starch Determination Enzymatic method
Xylose Determination AOAC Total Starch – Enzymatic kit
Proteins (acid digestion) Recommended protocol REGULATION (EC) no152/2009
Total Lipids Folch Method
Fatty acid methyl ester (FAME) NREL-LAP “Determination of total lipids as fatty acid methyl esters (FAME) by in situ transesterification”
HPLC Chromatography Analysis Glucose, Xyl-Fru-Gal, arabinose, cellobiose, maltose, maltotriose

Acetic acid, lactic acid, succinic acid, levulinic acid, and glycerol

Organic acids (C2-C10): Acetic Acid, Propionic Acid, Butyric Acid, Valeric Acid, Hexanoic Acid, Heptanoic Acid, Octanoic Acid, Nonanoic Acid, Decanoic Acid

GC-FID Chromatography Analysis Ethanol, methanol, butanol, acetone

Polyhydroxyalkanoates (PHAs)

TEST

METHOD

Moisture content – as received (AR) UNE-EN ISO 18134-2:207
Particle size distribution, dp > 3.15mm UNE-EN ISO 17827-1:2016
Bulk density (“bulk”) UNE-EN ISO 17828:2016
Particle size distribution, dp < 3.15mm UNE-EN ISO 17827-2:2016
Fine particle content in pellet samples UNE-EN ISO 18846:2017
Mechanical durability of pellets UNE-EN ISO 17831-1:2016
Ash content UNE-EN ISO 18122:2023
Unburnt content Internal Method
Volatile content UNE-EN ISO 18123:2024
Gross calorific value (GCV) UNE-EN ISO 18125:2018
Elemental analysis (CHN) UNE-EN ISO 16948:2015
GCV + NCV UNE-EN ISO 18125:2018
Sulfur content UNE-EN ISO 16948:2015
Chlorine content UNE-EN ISO 16994:2017
Major elements content (Al Ca Fe Mg P K Si Na Ti) UNE-EN ISO 16994:2017
Minor elements content (As Cd Co Cr Cu Hg Mn Mo Ni Pb Sb V Zn) UNE-EN ISO 16967:2015
Ash fusibility UNE-EN ISO 16968:2015
Determination of Na and K content UNE-EN ISO 21404:2021

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