| Literature DB >> 25725408 |
G Papa1, S Rodriguez2, A George2, A Schievano3, V Orzi3, K L Sale2, S Singh2, F Adani4, B A Simmons5.
Abstract
In this study the efficiency of mild ionic liquid (IL) pretreatment and pressurized hot water (PHW) is evaluated and compared in terms of bioethanol and biomethane yields, with corn stover (CS) and switchgrass (SG) as model bioenergy crops. Both feedstocks pretreated with the IL 1-ethyl-3-methylimidazolium acetate [C2C1Im][OAc] at 100°C for 3h exhibited lower glucose yield that those treated with harsher pretreatment conditions previously used. Compared to PHW, IL pretreatment demonstrated higher bioethanol yields; moreover IL pretreatment enhanced biomethane production. Taking into consideration both bioethanol and biomethane productions, results indicated that when using IL pretreatment, the total energy produced per kg of total solids was higher compared to untreated biomasses. Specifically energy produced from CS and SG was +18.6% and +34.5% respectively, as compared to those obtained by hot water treatment, i.e. +2.3% and +23.4% for CS and SG, respectively.Entities:
Keywords: Bioethanol; Biomass pretreatment; Biomethane; Ionic liquid pretreatment; Pressurized hot water pretreatment
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Year: 2015 PMID： 25725408 DOI： 10.1016/j.biortech.2015.01.121
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642