Green and Effective Ammonium Carbonate-assisted Process for Drying Hemicellulose Obtained through Alkali Extraction of Bleached Bamboo Kraft Pulp

作     者：Xiaoqi Gong Zongwei Zhang Yonghao Ni Xinhua Ouyang Lihui Chen Liulian Huang Huichao Hu Xiaoqi Gong;Zongwei Zhang;Yonghao Ni;Xinhua Ouyang;Lihui Chen;Liulian Huang;Huichao Hu

作者机构：College of Material EngineeringFujian Agriculture and Forestry UniversityFuzhouFujian Province350002China Department of Chemical EngineeringUniversity of New BrunswickFrederictonNew BrunswickE3B 5A3Canada 

出 版 物：《Paper And Biomaterials》 (造纸与生物质材料（英文）)

年 卷 期：2021年第6卷第1期

页      面：1-10页

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 0821[工学-纺织科学与工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0907[农学-林学] 082903[工学-林产化学加工工程] 0817[工学-化学工程与技术] 08[工学] 0829[工学-林业工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0901[农学-作物学] 0702[理学-物理学] 

基　　金：the National Key Research and Development Program of China(2017YFB0307900,2019YFC1905903) the National Natural Science Foundation of China(31700507) the Major Project on the Integration of Industry-Education-Research of Fujian Provincial Department of Science and Technology(2018H6003) 

主　　题：bamboo kraft pulp hemicellulose alkali extraction ammonium carbonate drying process dissolving pulp 

摘      要：Hemicellulose has a wide range of applications,including that as an emulsifier for the food industry and raw material for the synthesis of bioethanol/biochemicals and biodegradable *** is usually present as a spent liquor,such as the prehydrolysis liquor of the prehydrolysis kraft dissolving pulp production process and the alkali extraction liquor of the cold caustic extraction of pulp *** to its dilute nature,hemicellulose needs to be dried for practical utilization,and this is *** this study,cellulose and hemicellulose in a bleached bamboo kraft pulp were separated using an alkali extraction *** obtained from the extraction liquor was dried by an ammonium carbonate-assisted drying *** effects of drying time and drying temperature were *** of the hemicellulose obtained by the ammonium carbonate-assisted drying process was similar to that of original hemicellulose,as revealed by detailed Fourier transform infrared and X-ray diffraction *** novel drying method was more energy efficient and required a shorter drying time than the conventional freeze drying method,and the excellent solubility in alkaline solutions favored the chemical modification of *** dried hemicellulose can be used as a renewable raw material for the preparation of hydrogels and other substances such as bioethanol/biochemicals and biodegradable films.