title: Thermogravimetric analysis of the behavior of sub-bituminous coal and cellulosic ethanol residue during co-combustion.
abstract: The influence of the addition of cellulosic ethanol residue (CER) on the combustion of Indonesian sub-bituminous coal was analyzed by non isothermal thermo-gravimetric analysis (TGA). The effect of blends ratio (5%, 10%, 15% and 20%), interaction mechanism, and heating rate (5°C/min, 10°C/min, 15°C/min, 20°C/min) on the combustion process was studied. The results show that the increase of the blending ratio allows to achieve the increase of the combustibility index from 7.49E-08 to 5.26E-07 at the blending ratio of 20%. Two types of non-isothermal kinetic analysis methods (Ozawa-Flynn-Wall and Vyazovkin) were also applied. Results indicate that the activation energy of the blends decreases with increasing the conversion rate. In particular, the blending ratio of 20% confirms to have the better combustion performance, with the average value of the activation energy equal to 41.10 kJ/mol obtained by Ozawa-Flynn-Wall model and 31.17 kJ/mol obtained by Vyazovkin model.
authors: CRB - Biomass Research Centre, Via G. Duranti, 63, 06125 Perugia, Italy. Electronic address: cinzia.buratti@unipg.it.
authors: C
authors: C
authors: Buratti
authors: CRB - Biomass Research Centre, Via G. Duranti, 63, 06125 Perugia, Italy.
authors: M
authors: M
authors: Barbanera
authors: CRB - Biomass Research Centre, Via G. Duranti, 63, 06125 Perugia, Italy.
authors: P
authors: P
authors: Bartocci
authors: CRB - Biomass Research Centre, Via G. Duranti, 63, 06125 Perugia, Italy.
authors: F
authors: F
authors: Fantozzi
mesh_terms: D018533:Biomass; D003031:Coal / Q000032:analysis*; D000431:Ethanol / Q000737:chemistry*; D006358:Hot Temperature; D017745:Incineration / Q000379:methods; D007700:Kinetics; D012722:Sewage / Q000032:analysis* / Q000737:chemistry*; D013818:Thermogravimetry / Q000379:methods; D014866:Waste Products / Q000032:analysis*
chemical_list: D003031:Coal; D012722:Sewage; D014866:Waste Products; D000431:Ethanol
keywords: Activation energy; Co-combustion; Lignin; Sub-bituminous coal; Thermogravimetric analysis