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Transformation of Biomass into Aromatics with Zeolite Catalysts
Shu-mei Deng1, Ming-hui Fan1, Tie-jun Wang2, Quan-xin Li*1
1.Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;2.Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
Abstract:
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-mol%, respectively over the HZSM-5 catalyst under the optimal condition of T=450 oC, f(N2)=300 cm3/min, and catalyst/lignin ratio of 2. The e ects of the reaction conditions including temperature, gas ow 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.
Key words:  Biomass, Aromatics, Zeolite catalysts, Catalytic pyrolysis
FundProject:
生物质催化转化制取芳香化合物
邓淑梅1, 范明慧1, 王铁军2, 李全新*1
1.中国科学技术大学化学物理系,合肥 230026;2.中国科学院广州能源所,广州 510640
摘要:
利用分子筛催化剂(NaZSM-5、HZSM-5、ReY和HY)研究了木屑上催化裂解制取芳香物(苯、甲苯、二甲苯)的反应过程,发现HZSM-5催化剂具有最高的生物质裂解制备芳香化合物的活性. 在450 oC、 载气流速为300 mL/min和催化剂/木屑比为2的优化反应条件下,芳香化合物的产率和选择性分别达到26.5%和62.5C-mol%.
关键词:  生物质,芳香化合物,分子筛催化剂,催化裂解
DOI:10.1063/1674-0068/27/03/361-367
分类号: