Hydrodynamic cavitation as an efficient pretreatment method for lignocellulosic biomass: A parametric study

被引：40

作者：

Hilares, Ruly Teran ^{[1
]}

de Almeida, Gabriela Faria ^{[1
]}

Ahmed, Muhammad Ajaz ^{[2
]}

Antunes, Felipe A. F. ^{[1
]}

da Silva, Silvio Silverio ^{[1
]}

Han, Jong-In ^{[2
]}

dos Santos, Jlio Cesar ^{[1
]}

机构：

[1] Univ Sao Paulo, Engn Sch Lorena, Dept Biotechnol, BR-12602810 Sao Paulo, Brazil

[2] Korea Adv Inst Sci & Technol, Dept Civil & Environm Engn, 373-1 Guseong Dong, Daejeon 305701, South Korea

来源：

BIORESOURCE TECHNOLOGY | 2017年 / 235卷

关键词：

Hydrodynamic cavitation; Lignocellulosic biomass; Sugarcane bagasse; Pretreatment; Enzymatic digestibility; ASSISTED ALKALINE PRETREATMENT; SUGARCANE BAGASSE; WASTE-WATER; FLOW-THROUGH; DEGRADATION; INTENSIFICATION; OPTIMIZATION; REACTORS; ACID;

D O I：

10.1016/j.biortech.2017.03.125

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Hydrodynamic cavitation (HC), which is a highly destructive force, was employed for pretreatment of sugarcane bagasse (SCB). The efficacy of HC was studied using response surface methodology (RSM) with determining parameters varied: inlet pressure of 1-3 bar, temperature of 40-70 degrees C, and alkaline concentration of 0.1-0.3 M. At the best condition (3 bar, 70 degrees C and 0.3 M NaOH), 93.05% and 94.45% of hydrolysis yield of cellulose and hemicellulose, respectively, were obtained within 30 min of pretreatment time. Also, pretreatment time higher than 10 min had little to do regarding to SCB composition changes using different orifice plates (16 and 27 holes, with corresponding cavitation number of 0.017 and 0.048, respectively), with higher hydrolysis yield observed at 20 min of process. Therefore, HC-based approach could lead to a high yield of hydrolysis, as long as a treatment condition was right; it could be so at mild conditions and at short running time. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：301 / 308

页数：8

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