Biofuel as alternative energy

Biomass resources have the potential to offset the extensive use of fossil fuels. However, most of the biomass sources will compete with the source of food. Therefore this research is aiming for developing the alternative biomass resources which not competing with the food.

The information about the representative compositions of biomass resources is essential to convert them into useful biofuels. Thus, several researchers reported chemical compositions of some biomass species but the methods differ from one researcher to another, which leads to a problem of consistency when comparing the data. Therefore, our work aims to set up a reliable methodology for any kind of biomass species and obtain their comparative data on the chemical composition. Since wood is the majority of biomass resources, it has been studied most extensively. Consequently, the analytical method of wood has been widely chosen to characterize the chemical composition of the other biomass species. In this research, the analytical method of wood was used for other biomass species to figure out inconvenience in its method. By this way, the most reliable methodology applicable for any biomass species has been tried to be established.

Chemical compositions of the biomass species characterized by the analytical method of wood. The use of their analytical method enables to get very satisfactory summative results for wood species as in Japanese cedar and Japanese beech, respectively 99.0% and  96.4%.

Contrariwise, herbaceous species, for instance, rice husk, rice straw and bamboo are over 100% in their total yield. Those results might illustrate an overestimation of the chemical constituents of the biomass species. Ash contamination of Klason lignin is often reported by authors   especially for herbaceous biomass. This might be one of the reasons of the overestimation.

On the other hand, the summative results of the total yield are quite low for corn leaves (85.6%) and corn cob (91.8%). The low results indicate that despite the elements already determined through the analytical method, those samples contain other constituents in a quite important percentage (more than 14% for corn leaves).

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