期刊
INDUSTRIAL CROPS AND PRODUCTS
卷 43, 期 -, 页码 623-630出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.indcrop.2012.08.003
关键词
High grade cellulose fibers; Sulfur-free pulping; Modeling; Optimization; Arundo donax; Giant reed
资金
- Fundacao para a Ciencia e a Tecnologia (FCT, Portugal) [PTDC/AGR-CFL/103840/2008]
- Fundação para a Ciência e a Tecnologia [PTDC/AGR-CFL/103840/2008] Funding Source: FCT
Following to complex fractionation (biorefinery) scheme, the high-grade (purity) sulfur-free cellulosic pulps were produced from giant reed stems after selective removal of hemicelluloses by dilute sulfuric acid hydrolysis. Response surface methodology (RSM) was employed for statistical modeling and optimization of organosolv ethanol-alkali delignification using 2(4) central composite rotatable design (CCRD). The main process factors (effects and their interactions) affecting degree of pulp delignification and brightening were established and quantified. Analysis of variance (ANOVA) identified the effects of alkali concentration (linear and quadratic) as the more significant (p = 0). The optimum set of reaction conditions was defined by multiple regression analysis of the second-order polynomial model. Pulps with 4.3 Kappa number, 58.3% ISO brightness and 93.2% alpha-cellulose were produced under optimized conditions. (C) 2012 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据