摘要
零排放煤基发电技术是近年来为了克服常规动力系统中煤等化石燃料直接燃烧时存在能源转换率低、环境保护压力大等能源环境问题,和常规煤气化过程中能耗偏大等缺点而出现的一门高效、清洁煤利用技术。在系统概念设计的工作条件下,对实现煤加氢气化零排放发电的四个关键设备(气化炉、碳化塔、煅烧炉和燃料电池)进行了化学动力学分析,研究了温度和压力的变化对其中进行的化学反应的影响,得到了使反应能够进行和维持较高平衡转化率的温度和压力条件。
Zero Emission Coal Based Power Generation is a highly efficient clean coal utilization technology, which has appeared in recent years for the purpose of checkmating the low energy conversion rate and the environmental pollution trouble caused by direct firing of coal and other fossil fuel, in conventional power generation systems, as well as for overcoming the high energy consumption drawback of conventional gasification processes. A chemical kinetic analysis under conceptionally designed operating conditions of the four key installations (the gasifier, the carbonization tower, the calcination furnace and the fuel cell) is presented, together with a discussion of the effect of pressure and temperature variation on the chemical reactions concerned; herewith obtaining the proper temperature and pressure with which the reaction can proceed and continue with a high equilibrium conversion rate.
出处
《发电设备》
2005年第4期214-218,共5页
Power Equipment
关键词
零排放
加氢气化
化学动力学
平衡转化率
燃料电池
zero emission
hydrogasification
chemical kinetics
equilibrium conversion rate
fuel cell
