Sustainable Slow-Pyrolysis Simulation of 12 Lignocellulosic Bio-wastes: CO2 Emission, Energy, and Water Consumption

DANIELA INÉS YANINA ZALAZAR GARCÍA; FERNANDEZ, ANABEL; RODRIGUEZ, LEANDRO ALEXEI; RODRIGUEZ, ROSA ANA; MAZZA, GEMÁN

Viena

Congreso; ICESE 2021; 2021

11th International Conference on Environment

The development and increase of the agro-industrial activity generate bio-waste thatrepresents significant quantities and causes environmental impacts, as residual effluents andsolid wastes. These bio-wastes can be converted into different products through the pyrolysisprocesses (biochar, bio-oil, and gas). In this work, the pyrolysis at 673, 773, and 873 K of 12types of bio-waste characterized by their elemental composition was assessed through thesimulation process. Cape Open to Cape Open Simulator (COCO) free software was used insimulations. Thus, the biochar, bio-oil, and gas yields were predicted. Also, the energy, waterconsumption, and CO2 emission were calculated for each type of bio-waste. The marc and thestalk of white grape presented the highest biochar and bio-oil yields (30.7 and 53.1 %wt) at 673K. The pistachio green shell presented the highest gas yield, 53.7 %wt at 873 K. The maximumenergy consumption and CO2 emissions founded were 13.72 kWh and 3.72 kg/h for the stalk ofwhite grape at 873 K respectively, while the lowest energy consumption and CO2 emission were9.22 kWh and 2.31 kg/h for plum pits at 773 K respectively. The highest water consumption was25.86 kg/h for the stalk of red grape at 773 K, while the lowest value was 14.30 kg/h for plumpits at 773 K.