ANALYSIS OF THE PERFORMANCE OF A PACKED BED REACTOR TO PRODUCTION ETHYL ESTERS FROM CRUDE VEGETABLE OIL USING LIPASE IMMOBILIZED IN SILICA MODIFIED WITH PROTIC IONIC LIQUID

Quimica nova

Oliveira, Juliana Marçal de¹  Carvalho, Nayara Bezerra²  Osório, Natália Maria Ferreira de Melo³  Santana, Juliana Lisboa⁴ 

[1] Instituto Politécnico de Setúbal, Lavradio, Portugal;Universidade Federal da Bahia, Salvador, Brasil;Universidade Federal de Sergipe, São Cristóvão, Brasil;Universidade Tiradentes, Aracaju, Brasil

关键词: packed bed reactor;    residence time distribution;    mass transfer;    ionic liquid.;   

DOI  :  10.21577/0100-4042.20170261

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The objective this study was to evaluated the influence of silica modified with protic ionic liquid (PIL) on an immobilized biocatalyst by covalent binding of Burkholderia cepacia lipase (BCL) in a PBR and in the transesterification reaction, by characterization and mass transfer of the system studied. The results showed that maximum conversion of ethyl esters was 39 ± 1.73% at 96 h (IB on control silica) and 47 ± 2.0% in 72 h (IB on modified silica). The PIL also influenced the analysis of residence time distribution (RTD) with the mean time ranging from 14.94 (control silica) to 25 min (modified silica). Variation of the reaction parameters (temperature, flow rate and molar ratio) positively influenced the mass transfer coefficient (kc) which varied from 0.95 × 10−4 to 2.39 × 10−4 m s−1 (IB on control silica) and from 1.22 × 10−4 to 3.06 × 10−4 m s−1 (IB on modified silica).

【 授权许可】

CC BY