It is difficult to dehydrate tar
Thread Content
The density of the tar is 1.22–1.25, its viscosity is 4.46; the amount of toluene-insoluble substances is 15.41, and the water content is 15. What should be done?
Urgently adjust the operations related to adjusting the temperature in the coke ovens; if the inventory can handle it, carry out heating and letting it stand, and if not, use tar demulsifiers – reducing the water content to 4-5 levels should not be a problem.
It’s best to warm it up to around 8°C and let it stand to dehydrate. If there is a middle tank, the liquid level in that tank can be raised, and then water can be removed from it first
Distillation, with accompanying condensation, can achieve the desired effect
This issue has been encountered in many facilities. If it’s a newly built facility, it’s necessary to first check the operation and functioning of the mechanical sedimentation tank or the tar-ammonia separation tank. In the case of an existing plant, it’s important to identify any changes in the operation of the coke ovens and in the coal blending process; the problem needs to be identified based on the actual conditions. The information provided by the original poster is insufficient for a proper analysis.
It’s an old factory; due to the high temperature in the space above the coke ovens, is there any solution?
Is the high temperature in the coke oven roof due to insufficient coal loading, or is the standard temperature too high? The key is to check the coal loading amount to see if it exceeds the coal loading line.