Conventional pulping processes, such as soda, soda‐Antraquinone (AQ), and kraft, are currently used for non‐wood pulping. The main challenges of non‐wood pulping in conventional pulping processes are (1) large amounts of silica cause silica‐related operational difficulties in the process; (2) large amounts of fines/parenchyma cells decrease the drainage; and (3) the bulky nature of raw materials increases the collection/transportation cost, hampering large‐scale commercial operations. Alternative pulping processes are therefore being developed. This paper reviews the current status of alternative non‐wood pulping processes and their integration with the biorefinery concept. Several promising methods have been investigated at the laboratory or pilot scale. Organic acid and potassium hydroxide pulping processes are attractive alternatives for non‐wood pulping. Dissolved lignin and hemicelluloses in spent liquor can lead to the production of valuable co‐products, fitting well with the integrated biorefinery concept. Non‐wood biomass can be important raw material for pulping in forest‐deficient countries. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd

中文翻译：

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非木材化学制浆和与生物精炼概念整合的替代计划：回顾

苏打水，苏打-蒽醌（AQ）和牛皮纸等常规制浆工艺目前用于非木材制浆。传统制浆工艺中非木浆制浆的主要挑战是：（1）大量的二氧化硅会导致该工艺中与二氧化硅相关的操作困难；（2）大量细粉/薄壁细胞减少了引流；（3）原材料的大体积增加了收集/运输的成本，阻碍了大规模的商业运作。因此，正在开发替代的制浆方法。本文回顾了非木浆替代制浆工艺的现状及其与生物精炼概念的整合。已经在实验室或中试规模上研究了几种有前途的方法。有机酸和氢氧化钾制浆工艺是非木材制浆的有吸引力的替代方法。废液中溶解的木质素和半纤维素可导致产生有价值的副产物，与整合的生物精炼概念非常吻合。非木材生物量可以成为森林资源匮乏国家制浆的重要原材料。©2020年化学工业协会和John Wiley＆Sons，Ltd