煤气部分返回炼焦过程焦炭脱硫

The experiments were carried out to try to remove the inorganic sulfur and organic sulfur in the semi-coke at different gaseous mixtures and temperatures. The influence of recycling coke oven gas on the coke oven temperature was analyzed and the distribution of recycling coke oven gas in the carbonization chamber was simulated. The result shows that increasing the hydrogen content does favor to remove both inorganic sulfur and organic sulfur. However, rising the temperature does not always benefit the desulfurization. It would have little influence on the coke oven temperature if the coke oven gas is preheated before recycle. The optimal time to recycle the coke oven gas is that the pore distribution in the coke is becoming homogenous.