CAJ | 학술논문

采用Thermo Flex软件建立了基于两段式水煤浆气化技术的200MW级IGCC系统模型,研究了气化温度、水煤浆浓度、气化压力、氧气纯度等气化参数对系统性能的影响.结果表明：提高反应温度和气化压力,系统的供电效率和发电效率降低;氧气纯度增加,供电效率上升;在相同气化温度（或气化压力、氧气纯度）的情况下,提高二段给煤比γsc,系统性能可以得到有效改善;当水煤浆浓度变化时,氧煤质量比随γsc改变进行调整才能达到设计值碳转化率的要求.
채용Thermo Flex연건건립료기우량단식수매장기화기술적200MW급IGCC계통모형,연구료기화온도、수매장농도、기화압력、양기순도등기화삼수대계통성능적영향.결과표명：제고반응온도화기화압력,계통적공전효솔화발전효솔강저;양기순도증가,공전효솔상승;재상동기화온도（혹기화압력、양기순도）적정황하,제고이단급매비γsc,계통성능가이득도유효개선;당수매장농도변화시,양매질량비수γsc개변진행조정재능체도설계치탄전화솔적요구.
Using software ThermoFlex,a model of 200 MW IGCC system was established based on two-stage coal-slurry gasification technology,so as to study the effects of following factors on performance of the IGCC system,such as the gasification temperature,coal-slurry concentration,gasification pressure and purity of oxygen,etc.Results show that both the gross and net efficiency of power generation decrease with rising gasification temperature and pressure;higher net efficiency is to be obtained at a flow of higher purity oxgen;raising coal supply ratio（γsc） at the second stage may help to improve the system performance under same conditions of gasification temperature（or purity of oxygen,or gasification pressure）.Whereas under the varying conditions of coal-slurry concentration,the designed value of carbon conversion can be achieved based on adjustment of oxygen-coal mass ratio along with the variation of γsc.