文献类型：期刊文献

英文题名：A new surfactant assisted acid prehydrolysis process for enhancing biomass pretreatment

作者：Wang, Baobin[1,2] Yang, Guihua[1] Wang, Qiang[1] Liu, Shanshan[1] Chen, Jiachuan[1] Fang, Guigan[2,3]

第一作者：Wang, Baobin

通信作者：Yang, GH[1];Fang, GG[2]

机构：[1]Qilu Univ Technol, State Key Lab Biobased Mat & Green Papermaking, Key Lab Paper Sci & Technol, Minist Educ,Shandong Acad Sci, Jinan 250353, Shandong, Peoples R China;[2]Nanjing Forestry Univ, Coll Light Ind Sci & Engn, Nanjing 210037, Jiangsu, Peoples R China;[3]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China

年份：2020

卷号：27

期号：4

起止页码：2149-2160

外文期刊名：CELLULOSE

收录：;EI(收录号：20200107969336);Scopus(收录号：2-s2.0-85077161306);WOS:【SCI-EXPANDED(收录号:WOS:000504585700001)】；

基金：The authors are grateful for the financial support of the National Science Foundation of China (Grant Nos. 31770628, 31670584), Excellent Young Scientist Fund of Shandong Province (ZR2018JL015) and Taishan scholar project special funds.

语种：英文

外文关键词：Pretreatment; Poplar chips; Sodium dodecyl benzene sulfonate; Hemicellulose

摘要：Prehydrolysis is an essential step for utilizing biomass, particularly in the Kraft-based dissolving pulp process. Once the hemicellulose was effectively extracted, it can not only upgrade the dissolving pulp, but also arise additional revenue by converting value-added products. Herein, sodium dodecyl benzene sulfonate (SDBS) was used to enhance the hemicellulose removal from poplar wood chips during mild acid hydrolysis. SDBS addition could reduce the surface tension, thus increasing the diffusion of hydrogen ion and promoting the hemicellulose and lignin dissolution. The hemicellulose removal was increased from 42.5 to 54.7% by adding SDBS in comparison with the control under condition of 170 degrees C and 2 h. Additionally, the lignin removal was increased from 9.6 to 19.1%. Gel permeate chronograph, scanning electron microscope, and heteronuclear single quantum coherence spectroscopy support the positive effect of SDBS addition. The properties of dissolving pulp prepared from surfactant assisted pretreatment are comparable/better than that derived from acid pretreatment. It opened a sustainable and economical way to extract hemicellulose from lignocellulose. Graphic abstract A new surfactant assisted acid prehydrolysis process for enhancing biomass pretreatment. [GRAPHICS] .