Shell褐煤气化模拟计算分析  

Analysis of Analog Calculation of Shell Lignite Gasification

作　　者：贾靖华[1] 左玉帮[1] 刘鑫[1] 康善娇[1] 刘佳男[1] 梅长松[1] 李春启[1] 陈二孩 颜昌玉 

机构地区：[1]大唐国际化工技术研究院有限公司,北京100070 [2]大唐内蒙古多伦煤化工有限责任公司,内蒙古多伦027300

出　　处：《煤化工》2015年第2期15-19,共5页Coal Chemical Industry

摘　　要：以大唐多伦煤制烯烃项目Shell气化炉为研究对象,基于Gibbs自由能最小化法,通过反应平衡限制和热损失修正,建立了Shell褐煤气化平衡模型,计算结果与运行数据吻合较好。同时,研究了不同操作条件对气化性能的影响。结果表明:CO2载气流量和氧煤比是主要的影响因素,特别是氧煤比可以明显改变气化温度和产品煤气组成,随着氧煤比的增加,气化温度升高,有效气(H2+CO)组成先增加后减小,针对所用气化煤种,分析得出最佳氧煤比为0.76。Taking the Shell gasifier of Datang Duolun coal-to-olefin project as a research object, the Shell lignite gasification balance model was established by adopting the Gibbs free energy minimization method, and taking into consideration the reaction equilibrium limitation and heat loss correction. The calculation result was in good agreement with the on-site data. The impact of different operating conditions on the gasification performance was also studied, and the result indicated that the CO_2 carrier gas flow rate and the oxygen-coal ratio were the main influencing factors. The oxygen-coal ratio, in particular, could obviously change the gasification temperature and the composition of the product gas. Furthermore, gasification temperature increased with the increase of the oxygen-coal ratio, and the effective gas （H_2＋CO） composition first increased and then decreased. The optimal oxygen-coal ratio was 0.76, according to the coal used for gasification.

关 键 词：褐煤气化 模拟计算 ASPEN PLUS 平衡模型 氧煤比 CO_2载气流量 

分 类 号：TQ546[化学工程—煤化学工程]