Abstract

During hemicellulose alkali extraction from corn stalk (CS), focus has historically been on describing the effect of some key process parameters whereas less attention has been paid to the composition and structure differences of the CS raw material. This paper aimed to analyze the composition and structure of the different parts of CS and provide models of hemicellulose transportation. The results showed that the dissolution of hemicellulose was mainly influenced by not only the alkali-soluble hemicellulose content but also the density of tissue. In addition, the modelling results strongly reflected that all the dissolution processes of hemicellulose from the three parts belonged to physical mass transfer-dominated process.

中文翻译：

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半纤维素从玉米秸秆的不同组织转移到碱性过氧化氢溶液中

摘要

历史上，从玉米秸秆（CS）中提取半纤维素碱过程中，重点一直放在描述一些关键工艺参数的影响上，而对CS原料的组成和结构差异的关注则较少。本文旨在分析CS不同部分的组成和结构，并提供半纤维素运输的模型。结果表明，半纤维素的溶解不仅受碱溶性半纤维素含量的影响，而且还受组织密度的影响。此外，建模结果强烈反映了来自这三个部分的半纤维素的所有溶解过程均属于物理传质为主的过程。