固定床纯氧连续气化炉的模拟  

Simulation of fixed bed pure oxygen continuous gasification

作　　者：刘四威[1] 朱鼎[1] 李宏 陈慧 吴家桦[1] 王晓亮[1] 唐万金 LIU Si-wei;ZHU Ding;LI Hong;CHEN Hui;WU Jia-hua;WANG Xiao-liang;TANG Wan-jin(Central Research Academy of DEC, Chengdu 611731, Sichuan Province;Jiangxi Changyu Industrial Co., Ltd., Nanchang 330013, Jiangxi Provinc)

机构地区：[1]东方电气集团中央研究院,四川成都611731 [2]江西昌昱实业有限公司,江西南昌330013

出　　处：《氮肥技术》2018年第2期11-14,21,共5页Nitrogenous Fertilizer Technology

摘　　要：文章以过程模拟软件Aspen Plus为工具,建立了固定床纯氧连续气化的数学模型,模拟了固定床纯氧连续气化过程;并利用该模型研究了随蒸氧比与气化压力变化对气化指标的影响。结果表明同一原料煤,随蒸氧比增加煤气有效气含量降低,蒸汽分解率下降;随气化压力增加,煤气有效气含量降低,蒸汽分解率下降,但煤气中由甲烷化引起CH4含量增加。By means of process simulation software Aspen Plus, mathematic model of fixed bed pure oxygen continuous gasification is established, and process of fixed bed pure oxygen continuous gasification is simulated. Both ratio of steam to oxygen and gasification pressure have influence on gasification indexes. The influence is studied based on this model. Results show that with the increase of steam to oxygen ratio, effective gas content and steam decomposition rate decrease. With the increase of gasification pressure, effective gas content and steam decomposition rate decrease, but the content of methane in coal gas increase due to methanation reaction.

关 键 词：固定床 纯氧连续气化 ASPEN PLUS 蒸氧比 有效气 蒸汽分解率 

分 类 号：TQ545[化学工程—煤化学工程]