Issues regarding the use of benzene condensation coolers
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The venting system of the crude benzene condenser in my company cannot be turned off. If it is turned off, the pressure at the top of the benzene removal tower rises significantly; the venting volume is too small, which also increases the risk of blockages. Is there any suitable way to improve this situation?
See if the expert on coking on Haiyou can help you; I know too little about coking
Posting here is to seek advice from all the experts out there, but I haven’t received any replies lately. Could it be that they are in retreat for meditation?
Posting here is to seek advice from all the experts out there, but I haven’t received any replies lately. Could it be that they are in retreat for meditation?
What is the pressure at the top of the tower, what is the processing capacity, and are the equipment components complete? Could you please provide a detailed explanation regarding whether the parameters of the cooling medium meet the requirements?
Carefully check the composition of the non-condensable gas; if there is a large amount of steam, it indicates that the heat exchange tubes in the condensing cooler are blocked or fouled, or that sludge has accumulated on their surfaces. If it is pure non-condensable gas, then the issue of oil washing needs to be considered
It is likely due to poor condensation cooling efficiency. The reason may be 1: high inlet temperature of the cooling medium ； 2. Insufficient flow rate of the cooling medium ； 3. Are there any blockages or scaling in the heat exchange channels? ； 4. Determine whether the design and the heat exchange area for processing are sufficient.
Please let me know what type of crude condensation cooler you are using; otherwise, I won’t be able to help you make a decision
Is it a spiral plate type, a shell and tube type, or a plate and frame type?
The crude benzene condensation cooler of the original poster should be of the shell-and-tube type; the newly installed equipment should not have any blockages, which corresponds to point 4 mentioned by the person on floor 8. The process parameters should be within the acceptable range. It is recommended to add a washing tower and an adsorption tower, and to introduce the vent pipe into them. We just changed it last month. However, the effect is not very good; the exhaust from the newly added scrubber still isn’t fully closed off, and closing it would also affect the pressure in the benzene removal tower.