Assessment of the Economic and Energetic Potential of Residues from the Green Coconut Industry

Journal of the Brazilian Chemical Society

article

Romão, Débora C. F.¹  Santana Jr., Claudio C.¹  Brito, Mateus R.¹  Scapin, Elisandra¹  Pedroza, Marcelo²  Rambo, Michele C. D.²  Rambo, Magale K. D.¹ 

[1] Universidade Federal do Tocantins;Instituto Federal de Educação

关键词: lignocellulosic biomass;    pyrolysis;    bio-oil;    biochar;    energy;   

DOI  :  10.21577/0103-5053.20220042

学科分类：内科医学

来源: SciELO

【 摘 要 】

This work uses new waste feedstock, essential to increase the range of new biomasses, demonstrating experimentally and numerically the economic potential of coconut husk residues to produce renewable biofuels (pyrolytic oil and biochar) through slow pyrolysis. The samples were submitted to a pyrolysis process (500 ºC for 30 min, with a heating rate of 20 ºC min-1, using water vapor as carrier gas), where the biochar and bio-oil yields reached were 31 and 30%, respectively. The main components found in bio-oil were furfural (29.23%), phenol (22.18%), and isoeugenol (10.26%). The surface area values (Brunauer-Emmett-Teller (BET) and Langmuir) found for biochar were greater than 300 m2 g-1 and a micropore volume of 0.11 cm3 g-1. The estimated theoretical energy potential of biochar and bio-oil were 208,107,180 MJ and 190,205,438 MJ, equivalent to 3,729,518.4 tons of coconut husks. Thus, this study brings as a novelty a new feedstock associated with bioprocess technological models that will pave sustainable avenues for the development of biorefineries, offering a sustainable green option to produce bioproducts and bioenergy. In the proposed model, the wastes are valorized using various processes addressing economy.

【 授权许可】

CC BY