Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Batch and continuous production of biolubricant from fusel oil and oleic acid: Lipase screening, reactor system development, and reaction optimization

Full text
Author(s):
Bo, Renata N. Vilas [1] ; de Lima, Rosemar [1] ; Mendes, Adriano A. [2] ; Freitas, Larissa [1] ; Bento, Heitor B. S. [1] ; de Carvalho, Ana Karine F. [1, 2] ; de Castro, Heizir F. [1]
Total Authors: 7
Affiliation:
[1] Univ Sao Paulo, Engn Sch Lorena, BR-12602810 Lorena, SP - Brazil
[2] Univ Fed Alfenas, Inst Chem, BR-37130001 Alfenas, MG - Brazil
Total Affiliations: 2
Document type: Journal article
Source: CHEMICAL ENGINEERING AND PROCESSING; v. 168, NOV 2021.
Web of Science Citations: 0
Abstract

Fusel oil was used as a source of isoamyl alcohol in the synthesis of biolubricant by esterification with oleic acid catalyzed by different sources of lipase immobilized on poly(styrene/divinylbenzene) copolymer resin. In preliminary tests, Rhizopus oryzae lipase showed satisfactory performance, providing high molar conversion of the starting materials (>90% in 24 h of reaction), and was selected for subsequent experiments. The optimal conditions for isoamyl oleate production by immobilized R. oryzae lipase were 1:1.5 ratio of fusel oil to oleic acid and reaction temperature of 45 degrees C. Continuous runs were carried out in a two-stage packed-bed reactor coupled to a water extraction column filled with molecular sieves. Each reactor stage was loaded with 2.6 g of immobilized lipase and then fed with fusel oil and oleic acid at a 1:1.5 molar ratio in the presence of isooctane. The performance of the proposed system was tested at a space time of 10.2 h, resulting in a mean ester productivity of 292.20 +/- 18.46 mu mol g-1 min-1 and biocatalyst half-life of 179.6 h. The properties of purified samples were in accordance with standard requirements for biolubricants. (AU)

FAPESP's process: 16/10636-8 - From the cell factory to the Biodiesel-Bioethanol integrated biorefinery: a systems approach applied to complex problems in micro and macroscales
Grantee:Roberto de Campos Giordano
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants