当前位置: X-MOL 学术Int. J. Greenh. Gas. Con. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Numerical investigation of 660 MW pulverized coal-fired supercritical power plant retrofitted to oxy-coal combustion
International Journal of Greenhouse Gas Control ( IF 4.6 ) Pub Date : 2020-12-31 , DOI: 10.1016/j.ijggc.2020.103227
Sujeet Yadav , S.S. Mondal

A detailed investigation of the oxy-fuel combustion-based CCS consisting of air separation unit (ASU), supercritical boiler parameters and CO2 compression and purification unit (CPU) has been performed. A 660 MW supercritical power plant retrofitted to oxy-coal combustion has been simulated and analysed to investigate the operational characteristics of the oxy-coal combustion process by employing the process simulation tool Aspen plus. Moreover, the effect of important design parameters such as oxygen concentration of the oxidant, recycle ratio and purity of oxygen produced by ASU on the composition of flue gas, auxiliary power consumptions, CO2 recovery rate, CO2 product purity, and specific energy consumptions of O2 and CO2 has also been studied. The comparison of simulation results of the oxy-coal combustion and conventional air-fired combustion atmosphere has been presented. The excellent performance of oxy-coal combustion power plant has been observed in term of its ability to capture carbon dioxide with 95 % purity and 96 % recovery rate. The net efficiency of oxy-coal combustion power plant reduces by 10.4 % compared to the convention air-fired power plant.



中文翻译:

660 MW煤粉超临界火电厂加装氧煤燃烧的数值研究

对由空气分离单元(ASU),超临界锅炉参数以及CO 2压缩和净化单元(CPU)组成的基于氧燃料燃烧的CCS进行了详细研究。通过使用过程模拟工具Aspen plus,对经过改造的660 MW超临界电厂进行了氧煤燃烧的仿真和分析,以研究其燃烧特性。而且,重要的设计参数,例如氧化剂的氧气浓度,ASU产生的氧气的循环比和氧气纯度对烟气成分,辅助功耗,CO 2回收率,CO 2产品纯度和比能耗的影响O 2和CO2也已经研究过。提出了氧煤燃烧与常规空气燃烧气氛模拟结果的比较。氧煤燃烧发电厂的优异性能已被观察到,它具有以95%的纯度和96%的回收率捕获二氧化碳的能力。与传统的空气发电厂相比,氧煤燃烧发电厂的净效率降低了10.4%。

更新日期:2020-12-31
down
wechat
bug