摘要
生物资源是一个性质能被用于高价值化学药品和简历燃料的生产的可更新的资源。在礼品，工作，进象苯那样的 aromatics 的锯屑的转变，甲苯和二甲苯在一系列沸石催化剂(NaZSM-5， HZSM-5，裸麦和 HY 催化剂) 上被调查。在测试催化剂之中， HZSM-5 催化剂为 aromatics 的生产显示出最高的活动。aromatics 的收益和碳选择到达了大约 26.5% 并且 62.5C-mol% ，分别地在在 T=450 的最佳的条件下面的 HZSM-5 催化剂上 ????????????? 楳畴吗？？
Biomass is a nature renewable resource which can be used for the production of high value chemicals and bio-fuels. In the present work, the transformation of sawdust into aromat- ics such as benzene, toluene and xylenes was investigated over a series of zeolite catalysts （NaZSM-5, HZSM-5, ReY and HY catalysts）. Among the tested catalysts, the HZSM-5 catalyst shows the highest activity for the production of aromatics. The yield and carbon selectivity of aromatics reached about 26.5% and 62.5C-mo1%, respectively over the HZSM-5 catalyst under the optimal condition of T=450 ℃, f（N2）=300 cm^3/min, and catalyst/lignin ratio of 2. The effects of the reaction conditions including temperature, gas flow rate, and catalyst/sawdust ratio on the production of aromatics were investigated in detail and the formation of aromatics from lignocellulosic biomass was also addressed.
基金
ACKNOWLEDGMENTS This work was supported by the National Nat- ural Science Foundation of China （No.51161140331） and the National Key Basic Program of China （No.2013CB228105）.
