| CO2 from the atmosphere and water from the | | | | years, natural processes in the earth transformed |
| earth are combined in the photosynthetic process | | | | organic matter into today's fossil fuels: oil, natural |
| to produce carbohydrates that form the building | | | | gas and coal. In contrast, biomass fuels come |
| blocks of biomass. The solar energy that drives | | | | from organic matter in trees, agricultural crops |
| photosynthesis is stored in the chemical bonds of | | | | and other living plant material. CO2 from the |
| the structural components of biomass. If we burn | | | | atmosphere and water from the earth are |
| biomass efficiently oxygen from the atmosphere | | | | combined in the photosynthetic process to |
| combines with the carbon in plants to produce | | | | produce carbohydrates that form the building |
| CO2 and water. The process is cyclic because the | | | | blocks of biomass. The solar energy that drives |
| carbon dioxide is then available to produce new | | | | photosynthesis is stored in the chemical bonds of |
| biomass. Typical biomass resources include ? The | | | | the structural components of biomass. If we burn |
| forest ? Waste from wood processing industry ? | | | | biomass efficiently, oxygen from the atmosphere |
| Agricultural waste ? Urban wood waste ? | | | | combines with the carbon in plants no produces |
| Wastewater & landfill ? Other natural resources | | | | CO2 and water. The process is cyclic because the |
| (straw, peat, bagasse, etc.) Unlike any other | | | | carbon dioxide is then available to produce new |
| energy resource, using biomass to produce | | | | biomass. Typical biomass resources include: • |
| energy is often a way to dispose of biomass | | | | The forest residues from logging operations and |
| waste materials that otherwise would create | | | | other forest wooden waste • Waste from |
| environmental risks. Today, there are ranges of | | | | wood processing industry sawdust, cut-offs, bark, |
| biomass utilization technologies that produce useful | | | | etc. • Agricultural waste palm oil residues, rice |
| energy from biomass. • Direct Combustion | | | | husks, sugarcane, coconut shells, coffee & cocoa |
| • Gasification • Anaerobic Digestion • | | | | husks, cotton & maize residues, etc. • Organic |
| Methanol & Ethanol Production There are a | | | | waste animal manure, food processing wastes. |
| number of challenges that inhibit the development | | | | • Urban wood waste wooden pallets, packing |
| of biomass energy. In this regard, formulation of | | | | material, etc. • Wastewater & landfill Municipal |
| sustainable energy policy and strategies in | | | | sewage, landfill gas, etc. • Other natural |
| addressing these challenges is indeed a | | | | resources Straw, peat, bagasse Fossil fuels are |
| pre-requisite for the development and promotion | | | | not renewable. The oil, natural gas and coal we |
| of biomass energy. Rapid rate at which fossil and | | | | use today are gone forever. However, biomass |
| residual fuels are releasing CO2 into the | | | | fuels are renewable because the growth of new |
| atmosphere has raised international concern and | | | | plants and trees replenishes the supply. Unlike any |
| has spurred intensive efforts to develop | | | | other energy resource, using biomass to produce |
| alternative, renewable, sources of primary energy. | | | | energy is often a way to dispose of biomass |
| Biomass as the solar energy stored in chemical | | | | waste materials that otherwise would create |
| form in plant and animal materials is among the | | | | environmental risks. In this paper the following |
| most precious and most promising alternative | | | | biomass utilization technologies that produce useful |
| fuels not only for power generation but also for | | | | energy from biomass are compared: • Direct |
| other industrial and domestic applications on earth. | | | | Combustion • Gasification • Anaerobic |
| It provides not only food but also energy, building | | | | Digestion • Methanol & Ethanol Production For |
| materials, paper, fabrics, medicines and chemicals. | | | | better illustration the following diagram (Figure 1) |
| Biomass has been used for energy purposes ever | | | | shows biomass energy consumption in selected |
| since man discovered fire. It is important to say, | | | | Asian countries. Figure 1 Biomass consumption in |
| that biomass absorbs the same amount of CO2 | | | | selected Asian countries. There are a number of |
| in growing that it releases when burned as a fuel | | | | challenges that inhibit the development of biomass |
| in any form. This means that biomass contribution | | | | energy. In this regard, formulation of sustainable |
| to global warming is zero. In addition, biomass | | | | energy policy and strategies in addressing these |
| fuels contain negligible amount of sulphur, so their | | | | challenges is indeed a pre-requisite for the |
| contribution to acid rain is minimal. Over millions of | | | | development and promotion of biomass energy. |