Retrofitting analysis of a biorefinery: Integration of 1st and 2nd generation ethanol through organosolv pretreatment of oat husks and fungal cultivation

被引：1

作者：

Bulkan G. ^{[1
]}

Ferreira J.A. ^{[1
]}

Taherzadeh M.J. ^{[1
]}

机构：

[1] Swedish Centre for Resource Recovery, University of Borås, Borås

来源：

Bioresource Technology Reports | 2021年 / 15卷

关键词：

Ethanol; Filamentous fungi; Lignin; Organosolv; Pretreatment; Techno-economic analysis;

D O I：

10.1016/j.biteb.2021.100762

中图分类号：

学科分类号：

摘要：

This study was dedicated to techno-economic analysis of an integrated 1st and 2nd generation biorefinery, where the organosolv pretreated oat husk and thin stillage is valorized through filamentous fungi and baker yeast. By this strategy, process economy can benefit from multiple value-added products including lignin (80% purity), and protein-rich biomass as feed/food ingredients. Ethanol recovery of organosolv pretreatment benefits the already existing equipment in 1st generation ethanol plant. The best results shows that the integration of 10 tons/h oat husk into a process using 18.8 tons/h grains results in increasing ethanol production from 5.2 to 7.5 tons/h, in addition to 1.6 tons/h lignin (80% purity) and 7.6 tons/h fungal biomass. Integrated process is beneficial not only for 2nd but also for 1st generation ethanol production. Selling the fungal biomass as feed and food increased the net present value (NPV) in comparison to conventional ethanol plant by 71% and 7.9-fold, respectively. © 2021 The Authors

引用

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