Why is the refined benzene produced by the extraction unit in continuous reforming yellow?
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Why is the refined benzene produced by the extraction unit in continuous reforming yellow?
No, it’s been running for several years; it happened recently
By how much did the bromine index and pickling colorimetry values exceed the limits?
Has the bromine index been tested? It should be significantly above the limit. Please take a sample at the outlet of the clay tank for testing
Is it possible for the white clay to become ineffective?
The turbidity of benzene products is caused by water, while their yellowing is due to poor refining quality. If clay is used for purification, consider whether the clay has lost its effectiveness. If this problem occurs in a newly put into use clay tank, it is due to inadequate nitrogen purging before the tank’s operation, which allowed oxygen to remain inside.