华亭煤空气、富氧及纯氧地下气化特性研究 ,

对比研究了气化剂中氧气体积分数分别为21%,32%,42%和100%条件下的主要产气指标。结果表明,随着气化剂中氧气体积分数的上升,煤气有效组分和煤气热值呈上升趋势;氧气消耗随之增加,空气消耗相应降低,煤耗量增加,水蒸汽消耗量增加,而水蒸汽分解率下降;煤气产率呈下降趋势,而气化效率呈上升趋势;煤气产量和气化剂体积比由1.31降至1.16。 Make a contract study on the chief gasification indexes of field test used steam and various levels of oxygen enrichment air of 21%,32%,42%and 100%.The results show that,with the increasing of O_2 volume fraction in gasifying agents,the gas caloricity,effective components as well as the consumption of O_2,steam,coal rise,and the air consumption and steam decomposition efficiency decrease.Meanwhile,the gas productivity drops down and the gasification efficiency trends upwards.The volume ratio of gas production and gasifying agent reduces from 1.31 to 1.16 as the O_2 concentration in dry air grows from 21%to 100%