陕西科技大学学报2018，Vol.36Issue(4)：1-6,6.
基于钙盐添加剂的碱木质素热裂解规律研究
Study on pyrolysis characteristics of alkali lignin with the additive of calcium salts
摘要
Abstract
The thermal decomposition characteristic and product formation of alkali lignin with the additives of calcium chloride,calcium hydroxide,calcium formate,calcium acetate were investigated using thermogravimetric analyzer(TG)and pyrolysis-gas chromatogra-phy/mass spectrometry(Py-GC/MS).Results from TG showed that the rates of weight loss of alkali lignin were accelerated and the residual carbon was decreased with the additives of calcium salts,resulting in the improvement of the efficiency of lignin pyrolysis.The results of Py-GC/MS indicated that phenolic compounds were the main products of pyrolysis of alkali lignin.The relative content of vanillin obtained from the pyrolysis of alkali lignin with calci-um chloride,calcium hydroxide,calcium formate increased from 0.70％to 11.75％,8.26％,7.62％and 9.85％,respectively.The calcium formate promoted the formation of phenol with the methoxy removal of the intermediate products.Both calcium formate and calcium acetate have a positive effect on the formation of aromatics during the pyrolysis of alkali lignin.关键词
碱木质素/热裂解/钙盐/热重/热解气质联用Key words
alkali lignin/pyrolysis/calcium salt/thermogravimetric/Py-GC/MS分类
能源科技引用本文复制引用
王文亮,时宇杰,党泽攀,唐宁,黄佳乐,王少华..基于钙盐添加剂的碱木质素热裂解规律研究[J].陕西科技大学学报,2018,36(4):1-6,6.基金项目
陕西省自然科学基础研究计划项目(2018JQ3028) （2018JQ3028）
陕西科技大学博士科研启动基金项目(2016BJ-31) （2016BJ-31）
陕西科技大学大学生创新创业训练计划项目(2018014) （2018014）
