What is it 'biomass' ?
Biomass is the set of all organic material from plants and animals. When we speak of biomass are talking about sustainable energy and renewable. The energy can be obtained from biomass comes from the sun. Thanks to the process of photosynthesis, plants convert sunlight into energy that is accumulated within its cells. This stored energy can be released, subject to the various energetic processes such as combustion.
The different products that are considered within the generic term biomass can be kind of forestry, farming, livestock sector and food.
Biomass includes agricultural waste generated in agriculture and food that can be used directly as fuel or as raw material for the production of other fuels, for example, biofuels.
In the livestock sector and food waste the organic by-products that are generated such as pig manure, dung, manure, slaughterhouse waste, animal fats, the waste fruit pulps, etc, can be obtain energy through anaerobic digestion process.
The organic fraction of Municipal Solid Waste (MSW), sewage sludge generated in the wastewater treatment plants (STPs) or vegetable oils used as food or for fregiduria, are similar to residual biomass that comes from a process artificial transformation.
In our case, we encourage forest biomass is the result of cleaning, maintenance and improvement of forests to protect them from fire and pests, and waste resulting as byproducts of the wood industries (sawdust, bark , chips, shavings). This after a process of pressing and drying are called pellets.
The chip is an organic material that comes from the fragmentation of forest biomass (chipping), formed usually by wood and bark. The calorific value, when the humidity is below 30% wet basis I can be between 3,000 and 3,500 kcal / kg, depending on the species used. As for its dimensions, the length of a fragment can range between 2 cm and 10 cm, while width can be between 2 cm and 6 cm. Its thickness does not usually exceed 2 cm.
Besides being used as a fuel and / or raw material to produce other biofuels (pellets), wood chips can be used to obtain particle board, fiber or other, so as to obtain fibers to make paper.
Wood pellets are small cylinders of compressed sawdust, wood chips coming from sawdust and dried. These cylinders are formed through a high pressure applied through an array without any additive. Its humidity is very low, between 8 and 10% wet basis, a high density and calorific value can be between 4,000 and 5,000 kcal / kg. Its dimensions are very discreet, ranging from 1 cm to 6 cm long and 0.6 cm and 2 cm in diameter. So, these little "energy pills" need very little storage space.
The wood pellets are a renewable, ecological and economic features a very balance CO ₂ neutral currently not utilized and has great potential for the future. The cost is almost fixed because it is not subject to price fluctuations experienced by petroleum. So it is an advantageous economical choice that favors competitiveness and savings, as well as contributing to the improvement and protection of the environment.