煤灰对石油焦水蒸气气化的影响

Gasification of Petroleum Coke with Additional Coal Ash

通过热天平实验 ,研究了煤灰存在时石油焦的水蒸气气化反应行为 .实验研究发现 ,煤灰对石油焦水蒸气气化反应活性具有较好的催化作用 ,而且催化作用的好坏受煤灰添加均匀性的影响 .煤灰含量增加 ,石油焦气化反应速率增加 ;在煤灰含量较小时 ,煤灰含量的变化对反应速率的影响较大 .但随着煤灰含量增加 ,煤灰含量的变化对反应速率的影响逐渐不明显 .煤灰的存在降低了石油焦气化反应的反应活化能 .

The steam gasification experiments of petroleum coke with additional coal ash were carried out in 60% steam by using a thermobalance. The results show that steam gasification rate increases when coal ash is present. And the more the content of coal ash is, the higher the steam gasification rate increases. The effect of change of the coal ash content on gasification rate becomes smaller when the content increases. Gasification activation energy decreases when coal ash is present.