对整体煤气化联合循环多联产的各种可用煤气化技术进行了比较分析，并结合具体项目进行了详细的技术经济比较。结果表明，在整体煤气化联合循环多联产方案中虽然粉煤废锅流程在经济性上具有一定优势，但综合项目各方面因素，选择粉煤激冷流程相对更为适宜。

Various kinds of available coal gasification technologies used in integrated coal gasification combined cycle (IGCC) plant are compared and analyzed, and their technical economic performances are compared combined with specific projects.The results indicate that the pulverized coal gasification with waste heat boiler has comparative advantages in economy, but the pulverized coal gasification with quench process is relatively more appropriate if considering comprehensively various factors of a project.