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.)

Structural features of protic ionic liquids and their impact on pretreatment performance for 2G ethanol production

Full text
Author(s):
Pin, Thaynara C. [1] ; Nakasu, Pedro S. Y. [1] ; Rabelo, Sarita C. [2] ; Costa, Aline C. [1]
Total Authors: 4
Affiliation:
[1] Univ Estadual Campinas, Chem Engn Sch, UNICAMP, Av Albert Einstein 500, BR-13083852 Campinas, SP - Brazil
[2] Sao Paulo State Univ UNESP, Coll Agr Sci, Dept Bioproc & Biotechnol, Av Univ 3780, BR-18610034 Botucatu, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: ENERGY; v. 235, NOV 15 2021.
Web of Science Citations: 0
Abstract

Biomass pretreatment with protic ionic liquids (PILs) is a promising source of renewable energy and bioproducts, in which different cation/anion combinations may present different behavior towards biomass modification such as selective lignin and/or carbohydrate solubilization. The potential of 20 PILs as pretreatment agents was investigated, whose cations presented two different functional groups and different carbon chain lengths. The best solvent in terms of lignin solubilization during pretreatment was obtained by cations with a functional group (-OH and -NH2). High cellulose conversion was obtained with ethanolamine and ethylenediamine monoacetate ({[}2He]{[}Ac] and {[}Etid]{[}Ac]), under different pretreatment conditions (175 degrees C and 140 degrees C for 2 h, respectively). The presence of an alkaline anion and a functionalized cation enhanced the pretreatment effectiveness. The results presented in this work will be useful to design novel protic ionic liquids for pretreatment applications in biofuel processes, which can also be integrated to produce bioproducts within the biorefinery concept. (C) 2021 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 15/20630-4 - Biorefinery development integrated to a bioethanol sugar cane plant with zero CO2 emission: routes to convert renewable resources to bio-products and bio-electricity
Grantee:Rubens Maciel Filho
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 16/06142-0 - Strategies to improve the performance of the second generation ethanol production process
Grantee:Aline Carvalho da Costa
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants