Produção de biodiesel através de transesterificação in situ de sementes de girassol via catálise homogênea e heterogênea

Química Nova

Paola Ervatti Gama¹  Rosane Aguiar Da Silva San Gil¹  Elizabeth Roditi Lachter¹ 

[1] ,Universidade Federal do Rio de Janeiro Instituto de Química Rio de Janeiro RJ ,Brasil

关键词: biodiesel;    in situ transesterification;    basic catalysis;   

DOI  :  10.1590/S0100-40422010000900007

来源: SciELO

【 摘 要 】

The objective of this work is to show the results of the in situ transesterification of sunflower seed oil with methanol on basic homogeneous and heterogeneous catalysis for the production of biodiesel. In homogeneous catalysis, the activity of KOH and K2CO3 were evaluated using the same oil:methanol ratio of 1:90. KOH showed to be more active than K2CO3, leading to total conversion in biodiesel after 1h reaction time. In the heterogeneous catalysis the activity of K2CO3/Al2O3 was comparable to the activity of K2CO3 bulk: 53.0 and 66.6% resp. The properties of samples of biodiesel produced by homogeneous and heterogeneous catalysis were evaluated and are in accordance with the recommended fuel properties.

【 授权许可】

CC BY-NC   
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