生物油模型化合物催化裂解机理

为探索生物油催化裂解反应特性和催化作用机理,该文采用HZSM-5分子筛催化剂在550℃对生物油典型模型化合物(羟基丙酮、乙酸乙酯、愈创木酚)进行了催化裂解反应,研究模型化合物催化裂解特性和反应机理以及催化剂失活性质。试验结果显示:不含苯环的模型化合物催化裂解液体产物以芳烃为主,含氧化合物含量较低;羟基丙酮和乙酸乙酯的裂化气体产物分别以CO和烯烃为主。酚类模型化合物催化裂解液体产物仍以酚类为主,芳烃次之,说明苯酚类物质结构相对稳定,气体产物中烯烃含量约30%。根据气液产物分布,推测生物油催化裂解过程主要发生脱氧和环化反应,并对芳烃和烯烃有较好的选择性,为探索生物油催化裂解机理研究提供了理论依据。...

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Published in农业工程学报 Vol. 29; no. 9; pp. 207 - 213
Main Author 马文超 陈娇娇 王铁军 陈冠益 马隆龙 张琦
Format Journal Article
LanguageChinese
Published 中国科学院广州能源研究所 中国科学院可再生能源与天然气水合物重点试验室,广州 510640%天津大学环境科学与工程学院 天津大学内燃机燃烧学国家重点试验室,天津 300072 2013
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ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2013.09.027

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Summary:为探索生物油催化裂解反应特性和催化作用机理,该文采用HZSM-5分子筛催化剂在550℃对生物油典型模型化合物(羟基丙酮、乙酸乙酯、愈创木酚)进行了催化裂解反应,研究模型化合物催化裂解特性和反应机理以及催化剂失活性质。试验结果显示:不含苯环的模型化合物催化裂解液体产物以芳烃为主,含氧化合物含量较低;羟基丙酮和乙酸乙酯的裂化气体产物分别以CO和烯烃为主。酚类模型化合物催化裂解液体产物仍以酚类为主,芳烃次之,说明苯酚类物质结构相对稳定,气体产物中烯烃含量约30%。根据气液产物分布,推测生物油催化裂解过程主要发生脱氧和环化反应,并对芳烃和烯烃有较好的选择性,为探索生物油催化裂解机理研究提供了理论依据。
Bibliography:Ma Wenchao, Chen Jiaojiao, Wang Tiejun, Chen Guanyi, Ma Longlong, Zhang Qi (1. Key Laboratory of Renewable Energy and Gas Hydrate of Chinese Academy of Sciences, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; 2. School of Environmental Science and Engineering, State Key Laboratory of Engines of Tianjin University, Tianjin University, Tianjin 300072, China)
11-2047/S
Bio oil, produced by a fast pyrolysis of biomass, seems to be promising as the alternative to fossil fuel. However, bio oil has some undesired properties for fuel applications: high acidity, corrosiveness, low octane value, thermal instability, etc. These properties restrict its direct use for transportation, and require upgrading technology by reducing the oxygen content before use. Regarding to the complicated composition of bio oil, it is difficult to identify the reaction mechanism. Therefore, a model compound is widely used in bio oil upgrading research. Fluid catalytic cracking (FCC) experiments
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2013.09.027