增压部分气化燃煤联合循环(PPG-CC)发电系统热力性能分析  

Thermal Performance Analysis of Coal-fired Pressurized Partial Gasirication Combined Cycle(PPG-CC)

作　　者：肖军[1] 章名耀[1] 郑莆燕[1] 

机构地区：[1]东南大学洁净煤发电及燃烧技术教育部重点实验室,南京210096

出　　处：《燃气轮机技术》2003年第4期1-4,38,共5页Gas Turbine Technology

基　　金：国家重点基础研究发展规划资助项目(No.G199902210533)。

摘　　要：部分气化燃煤联合循环发电系统是目前具有发展前景的洁净煤发电技术之一。本文提出了将空气和蒸汽先经过高温预热再送入气化炉的部分气化联合循环系统新方案,对该方案进行了热力性能计算,并与常规的不预热空气/蒸汽的部分气化联合循环系统热力性能进行了分析比较。计算结果说明了高温预热空气/蒸汽的部分气化联合循环系统有利于提高煤气热值和循环系统效率,对于劣质煤以及生物质气化生成较高热值煤气也具有重要意义。Pressurized partial gasification combined cycle(PPG-CC)is one of progressive clean-coal technologies.In this paper, a novel partial gasification combined cycle scheme-preheated air and steam to high temperature before they enter the gasifier is put forward.The thermal performance of this combined cycle is calculated,and is compared with the partial gasification combined cycle without preheating air and steam.The results ofperformance calculation and analysis show that high temperature preheating air and steam can improve the heat value of gas and the cycle net efficiency.This approach to produce fuel gas with higher heat value has significant advantages in the low-rank coal,and even in the biomass waste.

关 键 词：部分气化燃煤联合循环发电系统 热力性能 高温预热 洁净煤发电 增压 

分 类 号：TM611.3[电气工程—电力系统及自动化]