The design and build of a Thermo-gravimetric analyzer (TGA) is discussed in this paper along with the preliminary data obtained. The TGA was designed for biomass pyrolysis and gasification. In the design it was taken in consideration decreasing the size as possible so as to decrease the area subject to heat losses as possible and to be capable of reaching high temperatures sufficient for both pyrolysis and gasification. The TGA was then tested using carbon dioxide and calculations for the rate of mass converted and conversion rate were carried out.

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