改性SnO2中空纤维催化裂解木本植物油制备富烃基燃料油

项目名称： 改性SnO2中空纤维催化裂解木本植物油制备富烃基燃料油

项目编号： No.31470594

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 农业科学

项目作者： 李昌珠

作者单位： 湖南省林业科学院

项目金额： 94万元

中文摘要： 木本植物油裂解制备富烃基燃料是生物能源产业的未来发展方向，而开发高性能固体酸催化剂是其中最为重要的一个环节。本课题首次提出以柠檬酸、锡盐为原料，并掺杂其它高价态金属盐，采用有机凝胶先驱体转化法，结合同轴静电纺丝技术，通过热处理和表面强酸化处理，制备改性SnO2纳米中空纤维，用于催化裂解木本植物油制备富烃基燃料。课题拟研究凝胶先驱体可纺性、热处理和强酸化工艺条件及相形成过程与纳米纤维组成、结构及特性之间的关系，优化制备工艺过程，实现比表面积、相分布、化学组成、晶粒尺度及纤维直径等的可控。同时，探索纤维的化学组成、微观结构、晶粒和直径大小、长径比等因素对其催化特性的影响规律，认识和揭示改性SnO2纳米中空纤维和反应物之间作用的内在机制。从而通过调控中空纤维的组成、微观结构及形貌，获取最佳催化性能。最终开发出改性SnO2纳米中空纤维的高效、低成本制备新技术，为这种新型催化剂的工业化应用奠定基础。

中文关键词： 催化裂解；木本植物油；SnO2；中空纤维；富烃燃料

英文摘要： The preparation of hydrocarbon- rich fuel using woody plants oil by pyrolysis is the development trend of bioenergy industry in the future. The development of the high performance solid acid catalyst is the most important link in pyrolysis reaction. In this project, the precursor gel fibers will be prepared via the organic gel-thermal decomposition process and coaxial electrostatic spinning technology using citric acid, Sn salts and other high state metal salt. Subsequently, these precursor gel fibers will be heat and acidification treated to obtain promoted SnO2 hollow nano-fiber catalyst. These nano-fibers can be utilized in the catalytic cracking reaction of woody plant oil to prepare hydrocarbon-rich fuel. The Project intends to research the relationship between spinnability of precursor gel, heat treatment, acidification process, formation process of phase and nano fiber composition, structure and characteristics. The control of the specific surface area and phase distribution, chemical composition, grain size and controllable fibre diameter can be realized by optimizing process. Meanwhile, the influence of fiber chemical composition, microstructure, grain size and the diameter size and length to diameter ratio on the catalytic properties will be investigated. The internal reaction mechanism between the reactants and fiber catalyst will also be revealed. The best catalytic performance could be obtained through the adjustment of composition, microstructure and morphology of hollow fiber. Eventually, the new technology for preparation of promoted SnO2 hollow nano-fiber with high catalytic performance and low cost will be developed, which lay a foundation for its industrial application.

英文关键词： Catalytic cracking;Woody plant oil;SnO2;Hollow fiber;Hydrocarbon-rich fuel