Affiliation:
1. Departamento de Engenharia Química, Universidade Estadual de Maringá (DEQ/UEM), Avenida Colombo 5790, Bloco D90, 87020-900 Maringá, PR, Brazil
2. Departamento de Engenharias e Ciências Exatas, Universidade Estadual do Oeste do Paraná (UNIOESTE), Rua da Faculdade 645, Gerpel, 85903-000 Toledo, PR, Brazil
Abstract
The increasing energy demand and reduction in the availability of nonrenewable energy sources, allied with an increase in public environmental awareness, have stimulated a search for alternative energy sources. The present study was aimed at producing biomass from the microalgaSpirulina platensisand at assessingin situsynthesis of alkyl esters via acid transesterification/esterification of biomass to produce biodiesel. Two alcohols (ethanol and methanol) and two cosolvents (hexane and chloroform) were tested, at different temperatures (30, 45, 60, 75, and 90°C) and reaction times (10, 20, 30, 60, and 120 min). The factorial analysis of variance detected an interaction between the factors (): temperature, reaction time, alcohol, and cosolvent. The best yields were obtained with the combination ethanol and chloroform at 60°C, after 30 min of reaction, and with hexane at 45°C, after 10 min of reaction.In situtransesterification/esterification of alga biomass to form esters for biodiesel production adds unconventional dynamics to the use of this feedstock.
Subject
General Chemical Engineering
Cited by
11 articles.
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