ESTUDO DA PURIFICAÇÃO DA GLICERINA LOIRA RESIDUAL NA PRODUÇÃO DE BIODIESEL

7º CONGRESSO BRASILEIRO DE PESQUISA E DESENVOLVIMENTO EM PETRÓLEO E GÁS

TÍTULO DO TRABALHO:
ESTUDO DA PURIFICAÇÃO DA GLICERINA LOIRA RESIDUAL NA PRODUÇÃO DE BIODIESEL

AUTORES:
Caroline Martins Leal1, Gardênia Maria S. Santos1, Isis Máximo D. dos Santos1, Daiane Farias P. Suffredini2, Soraia Teixeira Brandão3, Gabriel Francisco da Silva4

INSTITUIÇÃO:
1Departamento de Engenharia Química, DEQ, Universidade Federal de Sergipe, 2Departamento de Engenharia Química, Instituto Federal da Bahia, 3Programa de Pós-Graduação em Engenharia Química, PPEQ, Universidade Federal da Bahia, 4Núcleo de Petróleo, Laboratório de Energias Alternativas, NUPETRO/LTA, Universidade Federal de Sergipe.

ESTUDO DA PURIFICAÇÃO DA GLICERINA LOIRA RESIDUAL NA PRODUÇÃO DE BIODIESEL
Abstract
Economic and environmental feasibility regarding the use of biodiesel as a gradual substitute to diesel depends, among others, on the use of by-products generated in its production chain. When biodiesel is produced, a part of the total mass is converted to glycerin, a by-product with low value-added due to the content of impurities. Nevertheless, glycerin is a feasible by-product. “Blonde” glycerin is the raw glycerin submitted to acid treatment and removal of soap and fatty acids. That resulting product contains from 75 to 90 % of glycerol, approximately, and water, salts and methanol as well. In order to make the biodiesel economy feasible, it is necessary to develop low-cost processes for purification of blonde glycerin so that this product can be applied as raw material in production of high value-added products. Among the techniques used for glycerin purification, adsorption has been proved a promising alternative for impurity removal. The objective of this work is to purify the blonde glycerin from biodiesel production, using a seed’s shell, both from Moringa oleifera Lam, as adsorbents and to compare these to bentonite clay’s performance. The adsorbents were