IGCC关键技术及其热力学与经济性评价  

IGCC Key Technologies and Their Thermodynamic and Economic Evaluation

作　　者：张勇[1] 闫媛媛[1] 

机构地区：[1]陕西科技大学机电工程学院,陕西西安710021

出　　处：《热能动力工程》2013年第5期443-448,547,共6页Journal of Engineering for Thermal Energy and Power

摘　　要：介绍了整体煤气化联合循环(Integrated Gasification Combined Cycle,简称IGCC)发电技术的工艺流程及其目前发展水平、气化技术以及煤气净化系统等关键技术,重点分析了关键技术之一的核心设备-气化炉,从原理、工艺与结构方面对其进行了说明并探讨了部分气化炉存在的问题及改善措施。通过与超临界、天然气联合循环等发电技术对比对该系统的经济性进行了评价,并评估了该系统的热力学性能。最后从IGCC系统、气化技术和煤气净化系统等角度提出了IGCC今后的发展需要,进一步提高各子系统性能与整体的集成度,发展方向也更加多元化,以追求更低耗能和环保。Introduced were the process flow path of the IGCC power generation technology and its recent development,gasification technologies and coal gas purification systems etc. key technologies with an emphasis being put on an analysis of the core equipment item-gasifier,which had been considered as one of the key technologies. Its working principle, process and structure were described with some existing problems and corresponding remedies being discussed. Through a contrast with supercritical and natural gas combined cycle power generation technologies,the cost-effectiveness of the system in question was evaluated with its thermodynamic performance being assessed. Finally,the future development demands of the IGCC technology were put forward from the viewpoint of IGCC systems,gasification technologies and coal gas purification systems etc.,further enhancing the performance of various subsystems and the overall integration degree,and diversifying the development directions so as to pursue a lower energy consumption rate and better environmental protection.

关 键 词：IGCC 气化炉 热力学评估 经济分析 

分 类 号：TK112[动力工程及工程热物理—热能工程]