Abstract
This research investigates several woods originated from trees of tropical virgin forest as raw material for the production of granular activated carbon. Mechanical strength of the activated carbons produced was related to wood hardness and lignin content but not to cellulose-lignin ratio. One of the eight woods studied (Dividivi) produced an activated carbon with a high mechanical strength similar to that produced from coconut shell, taken as a standard. Dividivi is also suggested as promissory for desert greening.
Highlights
Selecting arboreal species prototypes to harvest for particular wood applications is a matter of extensive technology spectra
The objective of this research was to investigate several woods originated from trees of tropical virgin forest as raw material for granular activated carbon (GAC) manufacture, and to compare them with GAC obtained from coconut shell using the same activation procedure
Such tropical tree harvesting in a virgin forest is complicated by the fact that, as a difference from temperate and boreal forests characterized by predominant timberland species, biodiversity is so high in tropical forest that only a relative small number of each species are dispersed along the forest area
Summary
Selecting arboreal species prototypes to harvest for particular wood applications is a matter of extensive technology spectra. Coconut shell is well known as one of the best raw materials for the manufacture of microporous GAC with good particle mechanical strength (Heschel & Klose, 1995); production of agricultural byproducts like coconut shell is insufficient to cover the increasing world’s demand of GAC. For this reason, wood or coal is employed for GAC manufacture, but in these cases the granules are generally produced by pelletizing the wood or coal char powder composed of a binder to ensure proper mechanical strength of the resulting pellets (Amaya et al, 2007; Rubio et al, 1999). The objective of this research was to investigate several woods originated from trees of tropical virgin forest as raw material for GAC manufacture, and to compare them with GAC obtained from coconut shell using the same activation procedure
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