文献类型：期刊文献

中文题名：纤维素酶预处理对杨木磨浆能耗及浆料性能的影响研究

英文题名：Effect of Cellulase Pretreatment on Energy Consumption and Properties of Poplar Pulp

作者：耿博[1,2] 梁龙[1,2] 韩善明[1,2] 吴珽[1,2] 沈葵忠[1,2] 房桂干[1,2,3]

第一作者：耿博

机构：[1]中国林业科学研究院林产化学工业研究所、江苏省生物质能源与材料重点实验室、国家林业和草原局林产化学工程重点实验室、林木生物质低碳高效利用国家工程研究中心,江苏南京210042;[2]南京林业大学江苏省林业资源高效加工利用协同创新中心,江苏南京210037;[3]山东华泰纸业集团,山东东营257335

年份：2025

卷号：45

期号：4

起止页码：97-104

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：;北大核心:【北大核心2023】；

基金：国家重点研发计划资助项目(2022YFC2105503);中央财政林业科技推广示范资金项目(苏[2023]TG07)。

语种：中文

中文关键词：纤维素酶;磨浆能耗;纤维形态;耐破指数;抗张指数

外文关键词：cellulase;energy consumption of grinding;fiber morphology;burst index;tensile index

分类号：TQ35;TS743

摘要：在传统盘磨机械浆(RMP)的基础上,通过前期对杨木进行化学预浸渍处理、加入纤维素酶进行生物-化学预处理、生物-化学预处理前增加盘磨机械预处理来探究纤维素酶的影响,对比了RMP、化学机械浆(CMP)、生物化学浆(BMP)和机械生物化学浆(M-BMP)的磨浆能耗、纤维形态以及机械强度和光学性能。实验证实:纤维素酶的加入可以润胀纤维并对其进行可控水解,磨浆能耗从2550 kW·h/t降低至2106 kW·h/t,节约磨浆能耗13%以上;生物-化学预处理最高可将纤维宽度从21.70μm提高至23.20μm,将浆料中细小纤维比例从18.89%增加到24.51%;X射线衍射(XRD)和红外分析证明酶处理可以降解无定形区纤维素,使得纤维物料的相对结晶度上升;浆料耐破指数从0.34 kPa·m^(2)/g提升至0.46 kPa·m^(2)/g,抗张指数从9.22 N·m/g提升至12.66 N·m/g,较BMP分别提升35.29%和37.31%。此外,通过白度与不透明度的分析,证实了纤维素酶对高得率浆光学性能的影响在可控范围内。
Based on the traditional refiner mechanical pulp(RMP),the influence of cellulase was explored by conducting chemical pre-impregnation treatment on poplar wood in the early stage,adding cellulase for biochemical pretreatment,and adding mechanical pretreatment with disc grinding before biochemical pretreatment.The grinding energy consumption,fiber morphology,mechanical strength and optical properties of RMP,chemical mechanical pulp(CMP),biochemical pulp(BMP)and mechanical biochemical pulp(M-BMP)were compared.It was found that the addition of cellulase could swell and hydrolyze the fiber,reduce the energy consumption of grinding from^(2)550 kW·h/t to 2106 kW·h/t,save more than 13% of the energy consumption of grinding,the biological-chemical pretreatment could increase the fiber width from^(2)1.70μm to 23.20μm and the proportion of fine fibers in the pulp from 18.89% to 24.51%.XRD and infrared analysis proved that the enzymatic treatment could degrade amorphous cellulose,resulting in an increase in the relative crystallinity of the fiber material,and increase the burst index of the pulp from 0.34 kPa·m^(2)/g to 0.46 kPa·m^(2)/g.The tensile index increases from 9.22 N·m/g to 12.66 N·m/g,which is 35.29% and 37.31% higher than that of the refiner mechanical pulp,respectively.The characterization of whiteness and opacity proved that the cellulase could influence the optical properties of the high-yield pulp in a controllable range.