Mechanical, chemical, and thermal preprocessing and pretreatment methods helps to improve the biomass properties. Mechanical methods address feedstock handling, storage, and transportation issues; thermal methods improve proximate, ultimate and energy properties; and chemical pretreatments modify lignin and hemicellulose.

Introduction. MECHANICAL PREPROCESSING. Conventional and Advanced Mechanical Preprocessing Methods for Biomass: Performance- Quality Attributes and Cost Analysis. Effects of Mechanical Preprocessing Technologies on Gasification Performance and Economic Value of Syngas. Mechanical Fractionation of Biomass Feedstocks for Enhanced Pretreatment and Conversion. Biomass Gasification and Effect of Physical Properties on Products. The impacts of biomass pretreatment methods on bio-oil production. THERMAL PREPROCESSING. Steam Treatment of Cellulosic Biomass for Pelletization. Hydrothermal Carbonization (HTC) of Biomass for Energy Applications. Thermal Pretreatment of Biomass to make it Suitable for Biopower Application. The Impacts of Thermal Pretreatments on Biomass Gasification and Pyrolysis Processes. Hydrothermal Liquefaction - A Promising Technology for High Moisture Biomass Conversion. CHEMICAL PREPROCESSING. Chemical Preprocessing of Feedstocks for Improved Handling and Conversion to BioFuels. Ammonia fiber expansion and its impact on subsequent densification and enzymatic conversion. Acid Preprocessing Treatments: Benefit for Bioconversion of Biomass for Liquid Fuels and Bioproduct Production. Impacts, Challenges and Economics of Ionic Liquid Pretreatment of Biomass. Compositional and Structural Modification of Lignocellulosic Biomass for Biofuel Production by Alkaline Treatment.