摘要
燃烧前CO_2捕集技术在整体煤气化联合循环发电(IGCC)的应用正处于起步阶段。与传统化工系统里CO_2捕集不同,IGCC发电机组要求能够经常在不同负荷下运行,并能保持较高的系统热效率,因此对其动态特性以及控制方案的研究是十分必要的。针对正在建设的某30MWth的燃烧前CO_2捕集系统,基于DYNSIM软件平台搭建了其MDEA脱硫脱碳工艺流程动态仿真模型,研究了CO_2捕集率对主要调节变量的动态响应特性,并针对其特点提出了优化控制方案。将其与原有方案对比,仿真结果表明,应用该方案不仅可以提升CO_2捕集率的动态响应品质,还降低了能耗。
Pre-combustion CO_2 capture technology is still in its early stage when applying in an integrated gasification combined cycle（IGCC） System. Thus it is critical to conduct researches on the dynamic characteristics and control scheme of pre-combustion CO_2 capture technology in the IGCC power plant. A dynamic model of the MDEA desulfurization and decarburization process was developed for a 30 MW（th） pre-combustion CO_2 capture system by using commercial software, DYNSIM. The dynamic response characteristics of CO_2 capture rate to major variables were studied and an optimized control scheme was proposed. Compare to the original control scheme, higher CO_2 capture rate and lower energy consumption can be guaranteed in the dynamic process with the optimized scheme.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2016年第1期163-171,共9页
Proceedings of the CSEE
基金
中国华能集团公司科学技术项目(CERI/TX-15-HJK02)~~
关键词
整体煤气化联合循环(IGCC)
燃烧前CO_2捕集
动态特性
控制优化
能耗
integrated gasification combined cycle（IGCC）
pre-combustion CO_2 capture
dynamic characteristic
control optimization
energy consumption
