煤基多联产燃料化学能转化利用与CO2捕集耦合机理

项目名称： 煤基多联产燃料化学能转化利用与CO2捕集耦合机理

项目编号： No.51306185

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 能源与动力工程

项目作者： 李胜

作者单位： 中国科学院工程热物理研究所

项目金额： 25万元

中文摘要： 本申请拟探索煤基化工动力多联产系统中燃料化学能转化利用与CO2捕集机制及它们耦合机理等基础理论问题。基于化学能与物理能综合梯级利用原理和能的品位分析方法，建立联产系统燃料化学能和CO2分离功之间的基本关联和品位特征方程，揭示燃料转化过程化学能转化利用与CO2分离功之间的耦合机理，探明最佳CO2分离点以及实现CO2分离功与燃料化学能损失最小机制，揭示多联产系统低能耗捕集CO2的实现机制。通过实验研究，验证"燃料转化过程化学能利用与CO2分离功之间的耦合机理"，为特征方程提供关键实验数据。在机理研究和实验研究的基础上，总结凝练捕集CO2的联产系统的集成准则，提出具有应用前景的低能耗捕集CO2的多联产系统，比常规分产系统捕集CO2的能耗降低3-5个百分点或更多。研究成果将初步形成低能耗、低成本捕集CO2的联产系统集成机理与方法，为高碳能源利用过程中的CO2减排提供新思路和方法。

中文关键词： CO2捕集；多联产；低能耗；不可逆损失；耦合机理

英文摘要： This project is to explore some foundenmental theoretic problems including the mechanism of the conversion and utilization of the fuel chemical energy, CO2 capture and their coupling mechanism in coal-based polygeneration systems.Based on the principle of the comprehensive cascade utilization of chemical and physical energy and the analysis method of energy level, the basic relatiship between the fuel chemeical energy and the separation work for CO2 and the equation of their energy level will be built, the coupling mechanism between the conversion and utilization of chemeicla energy during fuel conversion and the CO2 separation work will be revealed, the method for the optimal point of CO2 separation and the minimization of the sum of the CO2 separation work and chemical energy losses will be explored, and the mechanism to realize the low-energy-penalty CO2 capture in coal-based polygeneration systems will be revealed. Through experiment,the coupling mechanism between the utilization of chemical energy and CO2 separation work will be validated and the basic data for their relationships will be provided.Based on both theoretic and experimental results, the guidelines of the integration of polygeneration systems with low-energy-penalty CO2 capture will be summarized, and several promissing coal-based polygeneratio

英文关键词： CO2 CAPTURE；POLYGENERATION；LOW ENERGY PENALTY；Exergy destruction；Coupling mechanism