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BIOMASS COMPOSITION, PROPERTIES & CHARACTERIZATION - Coggle Diagram
BIOMASS COMPOSITION, PROPERTIES & CHARACTERIZATION
Main organic constituents
Cellulose (40-45%)
Not water soluble, great resistance to acids and alkalis
Crystalline, abundant
Nearly half of woody biomass
Hemicellulose (20-35%) - Xylan & glucomannan
Breaks down more easily than cellulose.
Soluble in alkaline solution, abundant
Limited use & expensive
Lignin (15-30%)
Provide mechanical strength & protection
Glue like substance
Chemically complex
Minor organic constituents
Oils & Fats
Proteins
Starch
Soluble (Amylose), Not soluble (Amylopectin), High value as food
Physicochemical properties
Bulk density, calorific power, Ash content< Electrical conductivity, Hygroscopy, Dimension & Shape. Void volume.
Influence
Dimension & Shape
Handling & Process technology
Moisture content
Storage duration & Calorific power
Affect pyrolysis & gasification
Thermo-dynamic properties
Gasification
Calorific value, calorific power/heating value (HV)