原位供氢条件下生物质水热转化制备液体燃料基础研究

项目名称： 原位供氢条件下生物质水热转化制备液体燃料基础研究

项目编号： No.51476180

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 能源与动力工程

项目作者： 王泽

作者单位： 中国科学院过程工程研究所

项目金额： 83万元

中文摘要： 生物质水热催化转化制备液体燃料工艺具有液体产物中烃组分含量高、烃组分产生后易于分层分离的优点，但也存在着所用贵金属催化剂寿命较短、需引入外部氢气参与反应以提高脱氧转化效率并延长催化剂寿命而引起的成本增加及工艺路线延长的不利因素。本项目提出，以液体供氢试剂的原位转化制氢替代外部氢气的直接引入，辅以结焦抑制剂延缓催化剂表面结焦失活的进程，并通过反应器空间设计实现反应物原料与添加剂或催化剂的空间相对独立性，实现不同区间内不同反应在不同催化剂上的时间上连续空间上并行，以最大限度的发挥不同功能催化剂的催化效能，提高油相产物收率。同时，本项目将通过产物分析及理论化学方法系统地对水相转化过程中主要组分的生成及转化路径以及供氢试剂的反应机理展开研究，以利于指导反应条件的优化、产物组成的有效调控、以及供氢试剂的优选。为生物质水热转化制备液体燃料新方案进行实验探索并对所涉及的基础性理论问题展开系统研究。

中文关键词： 生物质；水相重整；反应机理；催化；原位供氢

英文摘要： Catalytic hydrothermal treatment of biomass is advantageous in yielding high content of alkanes in liquid product, and the alkanes are easier to be separated from aqueous phase. However, the short life-time of the noble metal catalyst, and the application of hydrogen gas for deoxygenating and for catalyst life-time extending makes the process complicated with high cost. In this project, liquid hydrogen donator is to be used for displacement of hydrogen gas; different coke suppressers will be tested to prolong the catalyst life-time by decreasing the cover of coke on the surface of catalyst; inner space of the reactor is to be specifically designed for space separation among reactants, additives, and catalysts, to maximize the functions of different additives and minimize possible disadvantageous interactions among the additives and catalysts. Major reaction routes, and working mechanisms of liquid hydrogen donators will be studied by analytical and theoretical approaches, for reaction condition optimization, for liquid composition control, and for better hydrogen donator screen. Generally, in this project, investigations on new methods of biomass hydrothermal treatment for liquid fuels are to be carried out, and the correlated fundamental theoretical issues are to be studied systemically.

英文关键词： Biomass;Aqueous-Phase Reforming;Reaction Mechanism;Catalysis;In-Situ Hydrogen Donator