Thermal Technologies for Biomass Conversion

A wide range of thermal technologies exists to convert the energy stored in biomass to more useful forms of energy. These technologies can be classified according to the principal energy carrier produced in the conversion process. Carriers are in the form of heat, gas, liquid and/or solid products, depending on the extent to which oxygen […]

Quick Summary of Waste-to-Energy Processes

A wide variety of waste-to-energy processes are available for realizing the potential of waste as an energy source, ranging from very simple systems for disposing of dry waste to more complex technologies capable of dealing with large amounts of municipal and industrial waste. These methods can be broadly divided into thermal and biological processes. Some […]

The Promise of Biochar and Bio Oil

Biomass pyrolysis transforms organic material such as agricultural residues and wood chips into three main components: syngas, bio-oil and biochar (which contain about 60 per cent of the carbon contained in the biomass. Biomass pyrolysis process can be used to sequester the carbon and  remove circulating carbon dioxide from the atmosphere and stores it in virtually […]

Biomass Conversion Technologies

Biomass conversion technologies can be tailored for rural or urban environments, and utilized in domestic, commercial or industrial applications. A wide range of technologies are available for realizing the potential of biomass as an energy source, ranging from very simple systems for disposing of dry waste to more complex technologies capable of dealing with large amounts […]

Insights into Biomass Pyrolysis

Biomass pyrolysis is the thermal decomposition of biomass occurring in the absence of oxygen. It is the fundamental chemical reaction that is the precursor of both the combustion and gasification processes and occurs naturally in the first two seconds. The products of biomass pyrolysis include biochar, bio-oil and gases including methane, hydrogen, carbon monoxide, and […]

Introduction to Biomass Pyrolysis

Pyrolysis is the thermal decomposition of biomass occurring in the absence of oxygen. It is the fundamental chemical reaction that is the precursor of both the combustion and gasification processes and occurs naturally in the first two seconds. The products of biomass pyrolysis include biochar, bio-oil and gases including methane, hydrogen, carbon monoxide, and carbon […]

Pathways for Waste-to-Energy Conversion

The conversion of waste-to-energy can proceed along three main pathways – thermochemical, biochemical and physicochemical. Thermochemical conversion, characterized by higher temperature and conversion rates, is best suited for lower moisture feedstock and is generally less selective for products. On the other hand, biochemical technologies are more suitable for wet wastes which are rich in organic […]

Recycling of Waste Tyres

Management of waste tyres is a challenging task because tyres have a long life and are non-biodegradable. The traditional method of waste tyres management have been stockpiling or illegally dumping or landfilling, all of which are short-term solution. Stockpiled tyres provide perfect breeding grounds for mosquitoes, vermin and snakes. Accidental fires caused in tyre dumps […]

Energy from Woody Biomass

Processing of wood yields by-products and waste streams collectively called residues, which have significant energy potential. A wide range of woody biomass resources are available for transformation into energy in natural forests, rural areas and urban centres. There are many ways to generate electricity from woody biomass using thermo-chemical pathway. These include directly-fired or conventional steam […]

Quick Glance at MSW-to-Energy Systems

Reduction in the volume and mass of solid waste is a crucial issue especially in the light of limited availability of final disposal sites in many parts of the world. Waste-to-Energy (WTE) or Energy-from-Waste (EfW) is the use of modern combustion and biochemical technologies to recover energy, usually in the form of electricity and steam, from urban […]