Regarding the problem of coal tar coking
Thread Content
Now I am very anxious to know the cause of coking of coal tar. Sometimes coking occurs at temperatures above 140 degrees. Friends from Sichuan, please help analyze it. What causes coking and how to prevent it? Thanks!
Take a look below, there are already in the forum http://bbs.hcbbs.com/viewthread.php?tid=143139
First of all, thank you, but the above does not solve the problem I asked.
There will be no coking at 140℃, it may be tar residue.
But I do have this situation here. It happens at 140~150 degrees. Please help me.
If the tar stays still, it will definitely coke at 140 degrees for a long time.
The oil here is flowing, and the flow rate is about 2m/s.
I don’t understand. It won’t coke within 150 degrees. Is it the coke residue that I brought here?
I used to think that it was the coal powder in the tar, because coal tar is sticky and the coal powder is easy to deposit, which will cause coking. I don’t know if this is correct.
This may be caused by your coal tar having too much residue, heavy components, and high viscosity.
If there is a lot of slag, it can be filtered. If there are a lot of heavy components and high viscosity, will it cause coking easily at low temperatures? What is the principle?