Effect of coke oven operation on tar recovery rate and tar quality
Thread Content
Combining coal volatiles has a great impact on the tar recovery rate. There are empirical formulas for calculation. However, the coal loading operation of the coke oven, the thermal standard furnace temperature control and the furnace top space temperature control have a great impact on the tar yield. Has anyone done any statistical analysis of data? What empirical data is used as the basis for analysis? What is the impact on tar quality? Thanks! ! !
If the coke oven fire channel temperature is too high or the furnace top space temperature is too high, it will reduce the tar yield, increase the specific gravity of tar, make dehydration difficult, and increase the content of toluene insoluble matter. These are more based on empirical judgments, and it is difficult to have specific data correspondence and calculations.； Furthermore, industrial production relies more on the combination and accumulation of theory and experience, and calculations are more used in the design stage.
Avoid excessive temperature in the furnace top space, which will cause secondary cracking of waste gas, resulting in an increase in the output of toluene-incompatible materials such as asphalt slag, thereby affecting the yield of chemical products.
The three-shift operation of the coke oven also has a great impact on it. Such as the influence of K2. The coal cake is incomplete. It takes too long to pick the right door.
The temperature of the furnace top space is too high, resulting in an increase in the toluene-insoluble content of tar and asphalt content, and at the same time, the tar yield will be reduced.
If the temperature of the furnace top space is too high, the cracking of waste gas will increase the viscosity of the tar, making it difficult to dehydrate, and it will easily block the equipment and pipelines in the chemical production workshop.
If the furnace temperature is high, the moisture content of the tar will increase (dehydration is difficult), and the tar density and toluene insoluble matter will increase.
Are there any related papers? Can any hero provide it?