石油焦水蒸气气化反应特性

The effect of temperature and steam partial pressure on gasification characteristics was investigated using thermobanlace. The results showed that the gasification reactivity of petroleum cokes is high. The reaction rate, R＝dx/dt, has a maximum value when carbon conversion is about 0.2 as the reaction proceeds. The carbon conversion corresponding to the maximum reaction rate is independent of temperature and steam partial pressure. And the specific gasification rate, M=dx/dt/(1-x), increases continuously during the gasification of petroleum cokes. It has a linear relationship with carbon conversion during the carbon conversion from xmax to 0.8. The specific surface area increases with increasing carbon conversion. The specific gasification rate has a good relativity with the effective specific surface area occupied by pores larger than 0.6 nm.