摘要
用Fluent软件对焦炉煤气非催化部分氧化制取合成气的反应器内的温度场、浓度场和平衡气体组成进行了数值模拟.结果表明,氧气与焦炉煤气比是决定气化温度和出口合成气成分的关键.随着氧气与焦炉煤气比的增加,气化温度升高.在氧气与焦炉煤气质量比为0.14时,反应器出口的有效气体(H2+CO)含量达到最大值,焦炉煤气中的CH4几乎完全转化.在距反应器喷嘴0.05m处反应器内达到了最高温度3300K,在0.1m处H2和CO及CO2均达到平衡,CH4在该点降到最低点.
The temperature field ,concentration field and equilibrium gas composition in reactor which is used to produce syngas by the method of non-catelytic partial oxidation for COG were simulated by the software Fluent. The results show that the oxygen to COG mass ratio is a key factor to deciding the gasification temperature and syngas composition at the export. By the increasing of the ratio, the gasification temperature improves also. When the ratio is 0.14, the content of effective gas （H2 ＋CO） reaches to the maximum, the CH4 in COG almost transformed completely. The temperature in the reactor reaches to the maximum 3 000 K when it is 0.05 m from the nozzle of the reactor, the contents of H2, CO and CO2 become to be balanced while the distance increased to 0.1 m, and CH4 decreased to the minimum.
出处
《煤炭转化》
CAS
CSCD
北大核心
2009年第3期19-22,共4页
Coal Conversion
基金
国家重点基础研究发展计划(973)项目(2005CB221203)
关键词
焦炉煤气
数值模拟
有效气体
coke-oven gas, numerical simulation, effective gas
