IGCC系统中燃机岛优化研究
陈晓利;郭波;张东晓;吴少华;李振中
【期刊名称】《洁净煤技术》 【年(卷),期】2011(017)003
【摘要】Optimize IGCC system in order to enhance power and efficiency of IGCC system. Analyze the gas turbine island optimization methods from the point of system with the software ThermoFlex. The results show that regulation mode for keeping T4 constant is optimal. Rationally arranging ASU integrated coefficient (Xas) and nitrogen reinjection coefficient ( Xgn ) can increase efficiency of the IGCC system. The best match is Xas =0.2 and Xgn =0.6. The control scheme of NOx emission which mainly relies on syngas moisturized supplemented by nitrogen reinjection can enhance efficiency of IGCC system. The best control scheme is syngas moisturized,Xgn =0.6 and Xas =0.2.%为提高IGCC系统的功率和效率,需要对系统进行优化.采用Thermoflex软件从系统的角度出发对燃机岛进行了优化研究.研究表明:等燃气轮机排气温度(T4)调节为燃气轮机的最佳调节方式.合理搭配压气机抽气比例和N2回注量可提高IGCC的系统效率,最佳匹配为整体空分系数0.2和N2回注系数0.6.采用燃气湿饱和法为主,N2稀释为辅的NOx排放控制方案有利于提高系统效率,最佳控制方案为燃料湿饱和法+N2回注系数0.6+整体空分系数0.2. 【总页数】4页(67-70)
【关键词】IGCC;燃机岛;调节方式;NOx;优化
IGCC系统中燃机岛优化研究
