Thermochemical conversion of aquatic weed biomass in a rotary kiln reactor for production of bio-based derivatives

摘要

? 2023This study explored the potential of converting water hyacinth biomass into bio-oil and biochar through a continuous pyrolysis process in a rotary kiln reactor at varying temperatures (400, 500, and 600 oC). The results indicated that the highest yield of the liquid fraction was obtained at 500 oC (42.11), while 400 and 600 oC resulted in higher production of biochar and pyrolytic gas. The bio-oils obtained from the pyrolysis process had an average calorific value of 68 compared to petroleum-derived fuels and were rich in acids, alcohols, phenols, and sugar derivatives. Comprehensive characterization of the bio-oil produced at 500 oC using APCI(?)-FT-Orbitrap MS analysis revealed its high oxygen and nitrogen content. The pyrolysis temperature also increased the aromaticity of biochar, making it a potentially valuable material for agricultural use as a soil amendment and for carbon sequestration. These findings demonstrate the potential of rotary kiln reactor pyrolysis for producing value-added products from water hyacinth biomass.